Cover L2002 Series Inverter Instruction Manual • Single-phase Input 200V Class • Three-phase Input 200V Class • Three-phase Input 400V Class Manual Number: NB675X Sept. 2006 After reading this manual, keep it handy for future reference. Hitachi Industrial Equipment Systems Co., Ltd.
L2002 Inverter Safety Messages For the best results with the L2002 Series inverter, carefully read this manual and all of the warning labels attached to the inverter before installing and operating it, and follow the instructions exactly. Keep this manual handy for quick reference. Definitions and Symbols A safety instruction (message) includes a “Safety Alert Symbol” and a signal word or phrase such as WARNING or CAUTION.
ii General Precautions - Read These First! WARNING: This equipment should be installed, adjusted, and serviced by qualified electrical maintenance personnel familiar with the construction and operation of the equipment and the hazards involved. Failure to observe this precaution could result in bodily injury. WARNING: The user is responsible for ensuring that all driven machinery, drive train mechanism not supplied by Hitachi Industrial Equipment Systems Co., Ltd.
L2002 Inverter WARNING: Rotating shafts and above-ground electrical potentials can be hazardous. Therefore, it is strongly recommended that all electrical work conform to the National Electrical Codes and local regulations. Installation, alignment and maintenance should be performed only by qualified personnel. Factory-recommended test procedures included in the instruction manual should be followed. Always disconnect electrical power before working on the unit.
iv Index to Warnings and Cautions in This Manual Cautions and Warnings for Orientation and Mounting Procedures CAUTION: Hazard of electrical shock. Disconnect incoming power before working on this control. Wait five (5) minutes before removing the front cover. ....... 2–3 CAUTION: Be sure to install the unit on flame-resistant material such as a steel plate. Otherwise, there is the danger of fire. ....... 2–9 CAUTION: Be sure not to place any flammable materials near the inverter.
L2002 Inverter WARNING: “Suitable for use on a circuit capable of delivering not more than 100,000 rms symmetrical amperes, 480 V maximum.” For models with suffix H. .... 2–16 HIGH VOLTAGE: Be sure to ground the unit. Otherwise, there is a danger of electric shock and/or fire. .... 2–16 HIGH VOLTAGE: Wiring work shall be carried out only by qualified personnel. Otherwise, there is a danger of electric shock and/or fire. ....
vi CAUTION: Be sure not to connect an AC power supply to the output terminals. Otherwise, there is the possibility of damage to the inverter and the danger of injury and/or fire. ..... 2–20 CAUTION: Remarks for using ground fault interrupter breakers in the main power supply: Adjustable frequency inverters with CE-filters (RFIfilter) and shielded (screened) motor cables have a higher leakage current toward Earth GND.
L2002 Inverter Warnings for Configuring Drive Parameters WARNING: When parameter B012, level of electronic thermal setting, is set to motor FLA rating (Full Load Ampere nameplate rating), the inverter provides solid state motor overload protection at 115% of motor FLA or equivalent. If parameter B012 exceeds the motor FLA rating, the motor may overheat and be damaged. Parameter B012, level of electronic thermal setting, is a variable parameter. ....
viii WARNING: Be sure not to touch the inside of the energized inverter or to put any conductive object into it. Otherwise, there is a danger of electric shock and/or fire. ....... 4–3 WARNING: If power is turned ON when the Run command is already active, the motor will automatically start and injury may result. Before turning ON the power, confirm that the RUN command is not present. .......
L2002 Inverter Warnings and Cautions for Troubleshooting and Maintenance WARNING: Wait at least five (5) minutes after turning OFF the input power supply before performing maintenance or an inspection. Otherwise, there is the danger of electric shock. ...... 6–2 WARNING: Make sure that only qualified personnel will perform maintenance, inspection, and part replacement. Before starting to work, remove any metallic objects from your person (wristwatch, bracelet, etc.).
x CAUTION: Do not stop operation by switching OFF electromagnetic contactors on the primary or secondary sides of the inverter. Ground fault interrupter Power Input U, V, W L1, L2, L3 Motor Inverter PCS FW When there has been a sudden power failure while an operation instruction is active, then the unit may restart operation automatically after the power failure has ended.
L2002 Inverter CAUTION: EFFECTS OF POWER DISTRIBUTION SYSTEM ON INVERTER In the cases below involving a general-purpose inverter, a large peak current can flow on the power supply side, sometimes destroying the converter module: 1. The unbalance factor of the power supply is 3% or higher. 2. The power supply capacity is at least 10 times greater than the inverter capacity (or the power supply capacity is 500 kVA or more). 3. Abrupt power supply changes are expected, due to conditions such as: a.
xii CAUTION: When the EEPROM error E08 occurs, be sure to confirm the setting values again.
xiii L2002 Inverter Terminal Tightening Torque and Wire Size The wire size range and tightening torque for field wiring terminals are presented in the tables below. Input Voltage 200V 400V Motor Output Inverter Model Power Terminal Wiring Size Range (AWG) ft-lbs (N-m) 16 0.6 0.8 0.9 1.2 1.5 2.0 0.9 1.2 1.5 2.0 kW HP 0.2 1/4 L200-002NFE(F)2/NFU2 0.4 1/2 L200-004NFE(F)2/NFU2 0.55 3/4 L200-005NFE(F)2 0.75 1 1.1 1 1/2 1.5 2 L200-015NFE(F)2/NFU2 12 2.
xiv Fuse and Circuit Breaker Sizes The inverter’s input power wiring must include UL Listed, dual-element, 600V fuses, or UL Listed, inverse-time, 600V circuit breakers. Input Voltage 200V 400V Motor Output Inverter Model Ampere Rating for Fuse or Breaker kW HP 0.2 1/4 L200-002NFE(F)2/NFU2 10 0.4 1/2 L200-004NFE(F)2/NFU2 10 0.55 3/4 L200-005NFE(F)2 10 0.75 1 L200-007NFE(F)2/NFU2 15 1.1 1 1/2 L200-011NFE(F)2 15 1.5 2 L200-015NFE(F)2/NFU2 20 (single ph.) 15 (three ph.) 2.
xv L2002 Inverter Table of Contents Safety Messages Hazardous High Voltage General Precautions - Read These First! Index to Warnings and Cautions in This Manual General Warnings and Cautions UL® Cautions, Warnings, and Instructions i ii iv ix xii Table of Contents Revisions Contact Information xvii xviii Chapter 1: Getting Started Introduction Inverter Specifications Introduction to Variable-Frequency Drives Frequently Asked Questions 1–2 1–5 1–18 1–23 Chapter 2: Inverter Mounting and Installation O
xvi Chapter 4: Operations and Monitoring Introduction Connecting to PLCs and Other Devices Control Logic Signal Specifications Intelligent Terminal Listing Using Intelligent Input Terminals Using Intelligent Output Terminals Analog Input Operation Analog Output Operation PID Loop Operation Configuring the Inverter for Multiple Motors 4–2 4–4 4–6 4–7 4–9 4–35 4–53 4–55 4–56 4–58 Chapter 5: Inverter System Accessories Introduction Component Descriptions Dynamic Braking 5–2 5–3 5–5 Chapter 6: Troubleshooti
L2002 Inverter xvii Revisions Revision History Table No. Revision Comments Initial release of manual NB675X Date of Issue Operation Manual No. Sept.
xviii Contact Information Hitachi America, Ltd. Power and Industrial Division 50 Prospect Avenue Tarrytown, NY 10591 U.S.A. Phone: +1-914-631-0600 Fax: +1-914-631-3672 Hitachi Australia Ltd. Level 3, 82 Waterloo Road North Ryde, N.S.W. 2113 Australia Phone: +61-2-9888-4100 Fax: +61-2-9888-4188 Hitachi Europe GmbH Am Seestern 18 D-40547 Düsseldorf Germany Phone: +49-211-5283-0 Fax: +49-211-5283-649 Hitachi Industrial Equipment Systems Co., Ltd.
Getting Started In This Chapter... 1 page — Introduction ..................................................... 2 — Inverter Specifications ..................................... 5 — Introduction to Variable-Frequency Drives .... 18 — Frequently Asked Questions .........................
1–2 Introduction Getting Started Introduction Main Features Congratulations on your purchase of an L2002 Series Hitachi inverter! This inverter drive features state-of-the-art circuitry and components to provide high performance. The housing footprint is exceptionally small, given the size of the corresponding motor. The Hitachi L2002 product line includes more than a dozen inverter models to cover motor sizes from 1/4 horsepower to 10 horsepower, in either 240 VAC or 480 VAC power input versions.
L2002 Inverter 1–3 Operator Interface Options Getting Started The L2002 inverter can connect to an external digital operator via the front panel serial port connector. The separate keypad is shown to the right (part no. OPE–SRmini). This allows you to operate the inverter remotely, as shown (below left). A cable (part no. ICS–1 or ICS–3, 1m or 3m) connects the modular connectors of the keypad and inverter. Hitachi provides a panel mount keypad kit OPE–SRmini (below, right).
1–4 Introduction Getting Started Inverter Specifications Label The Hitachi L2002 inverters have product labels located on the right side of the housing, as pictured below. Be sure to verify that the specifications on the labels match your power source, motor, and application safety requirements.
1–5 L2002 Inverter Inverter Specifications The following tables are specific to L2002 inverters for the 200V and 400V class model groups. Note that “General Specifications” on page 1–10 apply to both voltage class groups. Footnotes for all specifications tables follow the table below. Item L2002 inverters, 200V models EU types 002NFEF2 004NFEF2 005NFEF2 007NFEF2 002NFE2 004NFE2 005NFE2 007NFE2 USA type 002NFU2 004NFU2 — 007NFU2 — kW 0.2 0.4 0.55 0.75 1.1 HP 1/4 1/2 3/4 1 1.5 230V 0.
1–6 Inverter Specifications Getting Started Footnotes for the preceding table and the tables that follow: Note 1: Note 2: The protection method conforms to JEM 1030. The applicable motor refers to Hitachi standard 3-phase motor (4-pole). When using other motors, care must be taken to prevent the rated motor current (50/ 60 Hz) from exceeding the rated output current of the inverter. Note 3: The output voltage decreases as the main supply voltage decreases (except when using the AVR function).
1–7 L2002 Inverter L2002 Inverter Specifications, continued... L2002 inverters, 200V models EU types 015NFEF2 015NFE2 022NFEF2 022NFE2 — — — USA type 015NFU2 022NFU2 037LFU2 055LFU2 075LFU2 kW 1.5 2.2 3.7 5.5 7.5 HP 2 3 5 7.5 10 230V 2.8 3.9 6.3 9.5 12.7 240V 2.9 4.1 6.6 9.9 13.
1–8 Inverter Specifications Getting Started Item L2002 inverters, 400V models 400V Class Specifications EU types 004HFEF2 004HFE2 007HFEF2 007HFE2 015HFEF2 015HFE2 022HFEF2 022HFE2 USA type 004HFU2 007HFU2 015HFU2 022HFU2 kW 0.4 0.75 1.5 2.2 HP 1/2 1 2 3 1.1 1.9 2.9 4.
1–9 L2002 Inverter Item EU types 030HFEF2 030HFE2 040HFEF2 040HFE2 055HFEF2 055HFE2 075HFEF2 075HFE2 USA type — 040HFU2 055HFU2 075HFU2 kW 3.0 4.0 5.5 7.5 HP 4 5 7.5 10 6.2 6.6 10.3 12.7 Applicable motor size *2 Rated capacity (460V) kVA Rated input voltage *6 Integrated EMC filter 3-phase: 380 to 480V ±10%, 50/60 Hz ±5% HFEF type Three phase filter, Category C3 HFE, HFU types Rated input current (A) — 10.0 Rated output voltage *3 — 11.0 16.5 20.
1–10 Inverter Specifications Getting Started General Specifications The following table applies to all L2002 inverters. Item General Specifications Protective housing *1 IP20 Control method Sinusoidal Pulse Width Modulation (PWM) control Carrier frequency 2kHz to 14kHz (default setting: 5kHz) Output frequency range *4 0.5 to 400 Hz Frequency accuracy Digital command: 0.01% of the maximum frequency Analog command: 0.
L2002 Inverter Item 1–11 General Specifications AVR function, curved accel/decel profile, upper and lower limiters, 16-stage speed profile, fine adjustment of start frequency, carrier frequency change (2 to 14 kHz) *10, frequency jump, gain and bias setting, process jogging, electronic thermal level adjustment, retry function, trip history monitor, 2nd setting selection, fan ON/OFF selection Protective function Over-current, over-voltage, under-voltage, overload, extreme high/ low temperature, CPU error
1–12 Inverter Specifications Getting Started Derating Curves The maximum available inverter current output is limited by the carrier frequency and ambient temperature. The carrier frequency is the inverter’s internal power switching frequency, settable from 2 kHz to 14 kHz. Choosing a higher carrier frequency tends to decrease audible noise, but it also increases the internal heating of the inverter, thus decreasing (derating) the maximum current output capability.
1–13 L2002 Inverter Derating curves: Getting Started L200–002NFE(F)2/NFU2 100% 95% 90% % of rated output current 85% 80% 75% kHz 70% 2 4 6 8 10 12 14 Carrier frequency L200–004NFE(F)2/ NFU2, –005NFE(F)2 100% 95% 90% % of rated output current 85% 80% 75% kHz 70% 2 4 6 8 10 12 14 Carrier frequency L200–007NFE(F)2/ NFU2, –011NFE(F)2 100% 90% 80% % of rated output current 70% 60% 50% kHz 40% 2 4 6 8 10 Carrier frequency 12 14
1–14 Inverter Specifications Getting Started Derating curves, continued...
L2002 Inverter 1–15 Derating curves, continued...
1–16 Inverter Specifications Getting Started Derating curves, continued...
1–17 L2002 Inverter Derating curves, continued...
1–18 Introduction to Variable-Frequency Drives Getting Started Introduction to Variable-Frequency Drives The Purpose of Motor Speed Control for Industry Hitachi inverters provide speed control for 3-phase AC induction motors. You connect AC power to the inverter, and connect the inverter to the motor.
L2002 Inverter 1–19 Torque and Constant Volts/Hertz Operation Output voltage Getting Started In the past, AC variable speed drives used an open loop (scalar) technique to control speed. The constant-volts-per-hertz operation maintains a constant ratio between the applied voltage and the applied frequency. With these conditions, AC induction motors inherently delivered constant torque across the operating speed range. For some applications, this scalar technique was adequate.
1–20 Introduction to Variable-Frequency Drives Getting Started Inverter Output to the Motor The AC motor must be connected only to the inverter’s 3-Phase AC Motor output terminals. The output terminals are uniquely V/T2 labeled (to differentiate them from the input terminals) U/T1 with the designations U/T1, V/T2, and W/T3. This corresponds to typical motor lead connection designations T1, T2, and T3.
L2002 Inverter 1–21 Intelligent Functions and Parameters The optional read/write programmer will let you read and write inverter EEPROM contents from the programmer. This feature is particularly useful for OEMs who need to duplicate a particular inverter’s settings in many other inverters in assembly-line fashion. Braking In general, braking is a force that attempts to slow or stop motor rotation.
1–22 Introduction to Variable-Frequency Drives Getting Started Velocity Profiles The L2002 inverter is capable of sophisticated speed control. A graphical representation of Speed that capability will help you understand and configure the associated parameters. This manual makes use of the velocity profile 0 graph used in industry (shown at right). In the example, acceleration is a ramp to a set speed, and deceleration is a decline to a stop.
L2002 Inverter 1–23 Frequently Asked Questions What is the main advantage in using an inverter to drive a motor, compared to alternative solutions? A. Q. The term “inverter” is a little confusing, since we also use “drive” and “amplifier” to describe the electronic unit that controls a motor. What does “inverter” mean? A. Q. That depends on the required precision, and the slowest speed the motor will must turn and still deliver torque.
1–24 Frequently Asked Questions Getting Started Q. Why doesn’t the motor have a neutral connection as a return to the inverter? A. Q. Does the motor need a chassis ground connection? A. Q. The motor theoretically represents a “balanced Y” load if all three stator windings have the same impedance. The Y connection allows each of the three wires to alternately serve as input or return on alternate half-cycles. Yes, for several reasons.
L2002 Inverter Q. How will I know if my application will require resistive braking? Several options related to electrical noise suppression are available for the Hitachi inverters. How can I know if my application will require any of these options? A. Q. For new applications, it may be difficult to tell before you actually test a motor/drive solution. In general, some applications can rely on system losses such as friction to serve as the decelerating force, or otherwise can tolerate a long decel time.
Inverter Mounting and Installation In This Chapter.... 2 page — Orientation to Inverter Features ...................... 2 — Basic System Description ............................... 7 — Step-by-Step Basic Installation........................ 8 — Powerup Test ................................................ 22 — Using the Front Panel Keypad ......................
2–2 Orientation to Inverter Features Orientation to Inverter Features Unpacking and Inspection Please take a few moments to unpack your new L2002 inverter and perform these steps: 1. Look for any damage that may have occurred during shipping. 2. Verify the contents of the box include: a. One L2002 inverter Inverter Mounting and Installation b. One Instruction Manual c. One L2002 Quick Reference Guide 3. Inspect the specifications label on the side of the inverter.
L2002 Inverter 2–3 Front Housing Cover HIGH VOLTAGE: Hazard of electrical shock. Disconnect incoming power before working on this control. Wait five (5) minutes before removing the front cover. To remove the cover, follow the steps below (applies to all inverter models): 1. Press downward on the cover at the two areas indicated to release the retaining tabs. 2. Slide the cover forward and away from the keypad until the top edge of the cover reaches the notch in the inverter chassis. 3.
2–4 Orientation to Inverter Features Logic Connector Introduction Inverter Mounting and Installation After removing the front housing cover, take a moment to become familiar with the connectors, as shown below.
2–5 L2002 Inverter DIP Switch Introduction The inverter has three (3) internal DIP switches, located to the right of the logic connectors as shown below. This section provides an introduction, and refers you to other chapters that discuss each DIP switch in depth. SR 485 TM OPE PRG SK SK 485 OPE TM PRG The SR/SK (Source/Sink) DIP switch configures the inverter’s intelligent inputs for sinking or sourcing type circuit.
2–6 Orientation to Inverter Features Inverter Mounting and Installation Power Wiring Access - First, ensure no power source of any kind is connected to the inverter. If power has been connected, wait five minutes after powerdown and verify the Power LED is OFF to proceed. After removing the front housing cover, the housing partition that covers the power wiring exit will be able to slide upward as shown to the right. Notice the four wire exit slots (on larger model inverters) in the housing partition.
L2002 Inverter 2–7 Basic System Description A motor control system will obviously include a motor and inverter, as well as a breaker or fuses for safety. If you are connecting a motor to the inverter on a test bench just to get started, that’s all you may need for now. But a system can also have a variety of additional components. Some can be for noise suppression, while others may enhance the inverter’s braking performance.
2–8 Step-by-Step Basic Installation Inverter Mounting and Installation WARNING: In the cases below involving a general-purpose inverter, a large peak current can flow on the power supply side, sometimes destroying the converter module: 1.The unbalance factor of the power supply is 3% or higher. 2.The power supply capacity is at least 10 times greater than the inverter capacity (or the power supply capacity is 500 kVA or more). 3.Abrupt power supply changes are expected, due to conditions such as: a.
L2002 Inverter 2–9 Choosing a Mounting Location 1 Step 1: Study the following caution messages associated with mounting the inverter. This is the time when mistakes are most likely to occur that will result in expensive rework, equipment damage, or personal injury. CAUTION: Be sure to install the unit on flame-resistant material such as a steel plate. Otherwise, there is the danger of fire. CAUTION: Be sure not to place any flammable materials near the inverter. Otherwise, there is the danger of fire.
2–10 Step-by-Step Basic Installation Ensure Adequate Ventilation 2 Step 2: To summarize the caution messages—you will need to find a solid, non-flammable, vertical surface that is in a relatively clean and dry environment. In order to ensure enough room for air circulation around the inverter to aid in cooling, maintain the specified clearance around the inverter specified in the diagram. Clear area Air flow Inverter Mounting and Installation 10 cm (3.94”) minimum POWER HITACHI 5 0.0 RUN FUNC.
L2002 Inverter 2–11 Check Inverter Dimensions Step 4: Locate the applicable drawing on the following pages for your inverter. Dimensions are given in millimeters (inches) format. L200–002NFU2, -002NFEF2, –004NFU2, -004NFEF2, –005NFEF2 H=140(5.51) H=120(4.90) Inverter Mounting and Installation 110(4.48) 5(0.20) 5(0.20) 67(2.64) 7(0.16) 80(3.15) 2.6(0.102) D=93(3.66) D=107(4.21) D=130(5.12) 6(0.24) 4 Model H D -002NFU 2 -002NFEF2 -004NFU2 -004NFEF2 -005NFEF2 120(4.90) 140(5.51) 120(4.
2–12 Step-by-Step Basic Installation Dimensional drawings, continued... L200–004HFU2, –004HFEF2, –007NFEF2 H=155(6.10) H=130(5.130) 118(4.64) Inverter Mounting and Installation 2-φ5(0.20) 5(0.20) 98(3.86) 7(0.16) 110(4.33) 129(5.08) 6(0.24) Model -004HFU2 -004HFEF2 -007NFEF2 H 130(5.130) 155(6.10) 155(6.
L2002 Inverter 2–13 Dimensional drawings, continued... L200–007HFU2, –007HFEF2 H=155(6.10) H=130(5.130) Inverter Mounting and Installation 118(4.64) 2-φ5(0.20) 4(0.16) 5(0.20) 7(0.16) 98(3.86) 6(0.24) 129(5.08) 110(4.33) Model H -007HFU2 -007HFEF2 130(5.130) 155(6.
2–14 Step-by-Step Basic Installation Dimensional drawings, continued... L200–007NU2, -015NFU2, 015HFU2,-022NFU2, -022HFU2, -037LFU2, -040HFU2, 011NFEF2, -015NFEF2, -015HFEF2, -022NFEF2, -022HFEF2, -030HFEF2, -040HFEF2 H=155(6.10) H=130(5.130) 118(4.64) Inverter Mounting and Installation 2-φ5(0.20) 5(0.20) 7(0.16) 98(3.86) 6(0.24) D=129(5.08) D=156(6.14) 110(4.
L2002 Inverter 2–15 Dimensional drawings, continued... L200–055LFU2, –055HFU2, –075LFU2, -075HFU2, –055HFEF2, -075HFEF2 H=250(9.84) H=220(8.66) Inverter Mounting and Installation 205(8.07) 2-φ5(0.20) 6.5(0.25) 6(0.24) 164(6.46) 155(6.10) 5.5(0.22) 6(0.24) 7(0.16) 180(7.09) Model H -055LFU2 -055HFU2 -075LFU2 -075HFU2 -055HFEF2 -075HFEF2 205(8.07) 205(8.07) 205(8.07) 205(8.07) 250(9.84) 250(9.
2–16 Step-by-Step Basic Installation Prepare for Wiring 5 Step 5: It is very important to perform the wiring steps carefully and correctly. Before proceeding, please study the caution and warning messages below. WARNING: “Use 60/75°C Cu wire only” or equivalent. Inverter Mounting and Installation WARNING: “Open Type Equipment.” WARNING: “Suitable for use on a circuit capable of delivering not more than 100,000 rms symmetrical amperes, 240 V maximum.” For models with suffix N or L.
L2002 Inverter 2–17 Determining Wire and Fuse Sizes The maximum motor currents in your application determines the recommended wire size. The following table gives the wire size in AWG. The “Power Lines” column applies to the inverter input power, output wires to the motor, the earth ground connection, and any other component shown in the “Basic System Description” on page 2–7.
2–18 Step-by-Step Basic Installation Terminal Dimensions and Torque Specs The terminal screw dimensions for all L2002 inverters are listed in table below. This information is useful in sizing spade lug or ring lug connectors for wire terminations. CAUTION: Fasten the screws with the specified fastening torque in the table below. Check for any loosening of screws. Otherwise, there is the danger of fire.
L2002 Inverter 2–19 Please use the terminal arrangement below corresponding to your inverter model.
2–20 Step-by-Step Basic Installation CAUTION: Be sure that the input voltage matches the inverter specifications: • Single/Three phase 200 to 240 V 50/60 Hz (up to 2.2kW) for NFEF/NFU models • Three phase 200 to 240V 50/60Hz (above 2.2kW) for LFU models • Three phase 380 to 480 V 50/60Hz for HFEF models Inverter Mounting and Installation CAUTION: If you power a 3-phase-only inverter with single phase power, you must derate the output current. Be sure to call your Hitachi distributor for assistence.
L2002 Inverter 2–21 Wire the Inverter Output to Motor 7 Step 7: The process of motor selection is beyond the scope of this manual. However, it must be an AC induction motor with three phases. It should also come with a chassis ground lug. If the motor does not have three power input leads, stop the installation and verify the motor type. Other guidelines for wiring the motor include: • Use an inverter-grade motor for maximum motor life (1600V insulation).
2–22 Powerup Test Uncover the Inverter Vents 8 Step 8: After mounting and wiring the inverter, remove any covers from the inverter housing. This includes material over the side ventilation ports. Ventilation holes (top) Inverter Mounting and Installation WARNING: Make sure the input power to the inverter is OFF. If the drive has been powered, leave it OFF for five minutes before continuing.
L2002 Inverter 2–23 Pre-test and Operational Precautions The following instructions apply to the powerup test, or to any time the inverter is powered and operating. Please study the following instructions and messages before proceeding with the powerup test. 1. The power supply must have fusing suitable for the load. Check the fuse size chart presented in Step 5, if necessary. 2. Be sure you have access to a disconnect switch for the drive input power if necessary.
2–24 Using the Front Panel Keypad Using the Front Panel Keypad Please take a moment to familiarize yourself with the keypad layout shown in the figure below. The display is used in programming the inverter’s parameters, as well as monitoring specific parameter values during operation. Serial port Display Units (Hertz / Amperes) LEDs Parameter Display POWER HITACHI Inverter Mounting and Installation Run Key Enable LED FUNC. Run Key Stop/Reset Key RUN STOP RESET 1 2 Alarm LED ALARM Hz 5 0.
L2002 Inverter 2–25 Keys, Modes, and Parameters The purpose of the keypad is to provide a way to change modes and parameters. The term function applies to both monitoring modes and parameters. These are all accessible through function codes that are primarily 4-character codes. The various functions are separated into related groups identifiable by the left-most character, as the table shows. Type (Category) of Function d 001 FUNC.
2–26 Using the Front Panel Keypad Keypad Navigational Map The L2002 Series inverter drives have many programmable functions and parameters. Chapter 3 will cover these in detail, but you need to access just a few items to perform the powerup test. The menu structure makes use of function codes and parameter codes to allow programming and monitoring with only a 4-digit display and a few keys and LEDs.
L2002 Inverter 2–27 Selecting Functions and Editing Parameters To prepare to run the motor in the powerup test, this section will show how to configure the necessary parameters: 1. Confirm the TM/PRG DIP switch setting. 2. Select the keypad potentiometer as the source of motor speed command (A001) 3. Select the keypad as the source of the RUN command (A002) 4. Set the inverter’s maximum output frequency to the motor (A003) 5. Set the motor current for proper thermal protection (B012) 7.
2–28 Using the Front Panel Keypad If the Potentiometer Enable LED is OFF, follow the steps below. Action Inverter Mounting and Installation (Starting point) Display Func./Parameter A– – – “A” Group selected A001 Speed command source setting Press the FUNC. key. Press the FUNC. key again. 01 00 = Keypad potentiometer 01 = Control terminals 02 = Function F001 setting 03 = ModBus network 10 = Calculate function output Press the 2 key. 00 00 = potentiometer (selected) Press the STR key.
2–29 L2002 Inverter Set the Motor Base Frequency - The motor is designed to operate at a specific AC frequency. Most commercial motors are designed for 50/60 Hz operation. First, check the motor specifications. Then follow the steps below to verify the setting or correct it for your motor. DO NOT set it greater than 50/60 Hz unless the motor manufacturer specifically approves operation at the higher frequency. Action (Starting point) Press the FUNC. key once. key. Func.
2–30 Using the Front Panel Keypad Action (Starting point) Press the Press the 1 FUNC. key and hold until--> key. Display A003 Base frequency setting A082 AVR voltage select 230 or Inverter Mounting and Installation 400 Press the 1 Press the STR or 2 key as needed. key. Func.
L2002 Inverter 2–31 Set the Number of Motor Poles - The motor’s internal winding arrangement determines its number of magnetic poles. The specifications label on the motor usually indicates the number of poles. For proper operation, verify the parameter setting matches the motor poles. Many industrial motors have four poles, corresponding to the default setting in the inverter (H004).
2–32 Using the Front Panel Keypad Monitoring Parameters with the Display Inverter Mounting and Installation After using the keypad for parameter editing, it’s a good idea to switch the inverter from Program Mode to Monitor Mode. The PRG LED will be OFF, and the Hertz or Ampere LED indicates the display units. POWER HITACHI Hz 5 0.0 RUN STOP RESET ALARM A RUN PRG For the powerup test, monitor the motor 2 STR FUNC. 1 speed indirectly by viewing the inverter’s output frequency.
L2002 Inverter 2–33 Powerup Test Observations and Summary Step 10: Reading this section will help you make some useful observations when first 10 running the motor. Error Codes - If the inverter displays an error code (format is “E X X”), see “Monitoring Trip Events, History, & Conditions” on page 6–5 to interpret and clear the error. Acceleration and Deceleration - The L2002 inverter has programmable acceleration and deceleration values. The test procedure left these at the default value, 10 seconds.
Configuring Drive Parameters In This Chapter.... 3 page — Choosing a Programming Device ................... 2 — Using Keypad Devices .................................... 3 — “D” Group: Monitoring Functions..................... 6 — “F” Group: Main Profile Parameters ................ 9 — “A” Group: Standard Functions ..................... 10 — “B” Group: Fine Tuning Functions ................. 33 — “C” Group: Intelligent Terminal Functions...... 47 — “H” Group: Motor Constants Functions .........
3–2 Choosing a Programming Device Choosing a Programming Device Introduction Hitachi variable frequency drives (inverters) use the latest electronics technology for getting the right AC waveform to the motor at the right time. The benefits are many, including energy savings and higher machine output or productivity. The flexibility required to handle a broad range of applications has required ever more configurable options and parameters—inverters are now a complex industrial automation component.
L2002 Inverter 3–3 Using Keypad Devices The L2002 Series inverter front keypad contains all the elements for both monitoring and programming parameters. The keypad layout is pictured below. All other programming devices for the inverter have a similar key arrangement and function. Serial port Display Units (Hertz / Amperes) LEDs Parameter Display POWER HITACHI Run Key Enable LED FUNC. Run Key Stop/Reset Key RUN STOP RESET 1 2 Alarm LED ALARM Hz 5 0.
3–4 Using Keypad Devices Keypad Navigational Map You can use the inverter’s front panel keypad to navigate to any parameter or function. The diagram below shows the basic navigational map to access these items. Monitor Mode Program Mode PRG LED=OFF Display Data 0 0 0.0 FUNC. 1 d 083 1 Select Parameter Select Function or Group Configuring Drive Parameters 1 2 1 2 FUNC. 2 1 2 2 2 2 Edit FUNC. FUNC. 1 2 3.4 2 STR b 001 1 2 A1 55 2 1 FUNC.
3–5 L2002 Inverter Operational Modes The RUN and PRG LEDs tell just part of the story; Run Mode and Program Modes are independent modes, not opposite modes. In the state diagram to the right, Run alternates with Stop, and Program Mode alternates with Monitor Mode. This is a very important ability, for it shows that a technician can approach a running machine and change some parameters without shutting down the machine. Run STOP RESET Stop RUN FUNC.
3–6 “D” Group: Monitoring Functions “D” Group: Monitoring Functions You can access important system parameter values with the “D” Group monitoring functions, whether the inverter is in Run Mode or Stop Mode. After selecting the function code number for the parameter you want to monitor, press the Function key once to show the value on the display. In functions D005 and D006, the intelligent terminals use individual segments of the display to show ON/OFF status.
L2002 Inverter “D” Function Func. Code Name / SRW Display Description Run Mode Edit Units — Hz times constant D013 Output voltage monitor Voltage of output to motor, range is 0.0 to 600.0V — V Displays total time the inverter has been in RUN mode in hours. Range is 0 to 9999 / 1000 to 9999 / Γ100 to Γ999 (10,000 to 99,900) — hours Displays total time the inverter has been in RUN mode in hours.
3–8 “D” Group: Monitoring Functions Local Monitoring During Network Operation The L2002 inverter’s serial port may be connected to a network or to an external digital operator. During those times, the inverter keypad keys will not function (except for the Stop key). However, the inverter’s 4-digit display still provides the Monitor Mode function, displaying any of the parameters D001 to D007. Function B089, Monitor Display Select for Networked Inverter, determines the particular D00x parameter displayed.
3–9 L2002 Inverter “F” Group: Main Profile Parameters The basic frequency (speed) profile is Output defined by parameters contained in the F002 F003 frequency “F” Group as shown to the right. The set running frequency is in Hz, but acceleraF001 tion and deceleration are specified in the time duration of the ramp (from zero to maximum frequency, or from maximum 0 frequency to zero). The motor direction t parameter determines whether the keypad Run key produces a FWD or REV command.
3–10 “A” Group: Standard Functions “A” Group: Standard Functions Control Source Settings The inverter provides flexibility in how you control Run/Stop operation and set the output frequency (motor speed). It has other control sources that can override the A001/ A002 settings. Parameter A001 sets the source selection for the inverter’s output frequency. Parameter A002 selects the Run command source (for FW or RV Run commands).
3–11 L2002 Inverter Run Command Source Setting - For parameter A002, the following table provides a further description of each option, and a reference to other page(s) for more information Code Run Command Source Refer to page(s)...
3–12 “A” Group: Standard Functions The inverter has other control sources that can temporarily override the parameter A001 setting, forcing a different output frequency source. The following table lists all frequency source setting methods and their relative priority (“1” is the highest priority). Priority A001 Frequency Source Setting Method Refer to page...
3–13 L2002 Inverter Basic Parameter Settings These settings affect the most fundamental behavior of the inverter—the outputs to the motor. The frequency of the inverter’s AC output determines the motor speed. You may select from three different sources for the reference speed. During application development you may prefer using the potentiometer, but you may switch to an external source (control terminal setting) in the finished application, for example.
3–14 “A” Group: Standard Functions Analog Input Settings Configuring Drive Parameters The inverter has the capability to accept an external analog input that can command the output frequency to the motor. Voltage input (0 –10V) and current input (4–20mA) are available on separate terminals ([O] and [OI], respectively). Terminal [L] serves as signal ground for the two analog inputs. The analog input settings adjust the curve characteristics between the analog input and the frequency output.
L2002 Inverter “A” Function Func. Code Name / SRW Display A005 [AT] selection AT-Slct O/OI A011 O–L input active range start frequency O-EXS 0000.0Hz A012 O–L input active range end frequency O-EXE 0000.0Hz O-EX%S 00000% A014 O–L input active range end voltage O-EX%E 00100% A015 O–L input start frequency enable O-LVL 0Hz A016 External frequency filter time constant F-SAMP 00008 Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) Four options, select codes: 00 ..
3–16 “A” Group: Standard Functions The example graph below shows a typical analog input waveform. The filter removes the noise spikes. When a speed change (such as level increase) occurs, the filter naturally has a delayed response. Due to the deadband feature (A016=17), the final output changes only when the 16-sample average moves past the deadband threshold. A016=17 Hz Small step-change Output freq. reference Threshold exceeded +0.1 16-sample avg. “0” New deadband Deadband +0.1 “0” –0.2 –0.
L2002 Inverter “A” Function Func. Code Name / SRW Display Description 3–17 Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) ✔✔ 0.0 0.0 Hz A220 Multi-speed frequency setting, 2nd motor ✔✔ 0.0 0.0 Hz ✔✔ see next row see next row Hz 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Defines the first speed of a multi-speed profile, range is 0.0 / start frequency to 400 Hz SPD 00s 0000.
3–18 “A” Group: Standard Functions Torque Control Algorithms The inverter generates the motor output according to the V/f algorithm selected. Parameter A044 selects the inverter algorithm for generating the frequency output, as shown in the diagram to the right (A244 for 2nd motor). The factory default is 00 (constant torque).
L2002 Inverter 3–19 Be aware that running the motor at a low speed for a long time can cause motor overheating. This is particularly true when manual torque boost is ON, or if the motor relies on a built-in fan for cooling. NOTE: Manual torque boost applies only to constant torque (A044=00) and variable torque (A044=01) V/f control. Voltage Gain – Using parameter A045 you V can modify the voltage gain of the inverter (see 100% graph at right).
3–20 “A” Group: Standard Functions “A” Function Func. Code Name / SRW Display A244 V/f characteristic curve selection, 2nd motor 2CTRL C-TRQ A045 V/f gain setting V-Gain 00100% A245 V/f gain setting, 2nd motor Configuring Drive Parameters 2V-Gain 00100% Description Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) Two available V/f curves; three select codes: 00... Constant torque 01... Reduced torque ✘✘ 00 00 — Sets voltage gain of the inverter, range is 20. to 100.% ✔✔ 100.
L2002 Inverter 3–21 DC Braking Settings The DC braking feature can provide + Running Free run DC braking additional stopping torque when compared to a normal deceleration to a stop. DC braking is particularly useful 0 at low speeds when normal decelerat tion torque is minimal. When you A053 A055 enable DC braking, the inverter injects – a DC voltage into the motor windings during deceleration below a frequency you can specify (A052). The braking power (A054) and duration (A055) can both be set.
3–22 “A” Group: Standard Functions Frequency-related Functions Frequency Limits – Upper and lower Output limits can be imposed on the inverter frequency output frequency. These limits will apply regardless of the source of the speed refer- A061 Upper limit ence. You can configure the lower frequency limit to be greater than zero as shown in the graph. The upper limit must Lower not exceed the rating of the motor or A062 limit capability of the machinery.
L2002 Inverter 3–23 Jump Frequencies – Some motors or machines exhibit resonances at particular speed(s), which can be destructive for prolonged running at those speeds. The inverter has up to three jump frequencies as shown in the graph. The hysteresis around the jump frequencies causes the inverter output to skip around the sensitive frequency values.
3–24 “A” Group: Standard Functions PID Control When enabled, the built-in PID loop calculates an ideal inverter output value to cause a loop feedback process variable (PV) to move closer in value to the setpoint (SP). The frequency command serves as the SP. The PID loop algorithm will read the analog input for the process variable (you specify the current or voltage input) and calculate the output.
3–25 L2002 Inverter Automatic Voltage Regulation (AVR) Function The automatic voltage regulation (AVR) feature keeps the inverter output waveform at a relatively constant amplitude during power input fluctuations. This can be useful if the installation is subject to input voltage fluctuations. However, the inverter cannot boost its motor output to a voltage higher than the power input voltage. If you enable this feature, be sure to select the proper voltage class setting for your motor. “A” Function Func.
3–26 “A” Group: Standard Functions Second Acceleration and Deceleration Functions The L2002 inverter features two-stage acceleration and deceleration ramps. This gives flexibility in the profile shape. You can specify the frequency transition point, the point at which the standard acceleration (F002) or deceleration (F003) changes to the second acceleration (A092) or deceleration (A093). Or, you can use intelligent input [2CH] to trigger this transition.
L2002 Inverter “A” Function Func. Code Name / SRW Display Description 3–27 Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) A095 Acc1 to Acc2 frequency Output frequency at which transition point Accel1 switches to Accel2, range is 0.0 to 400.0 Hz ACC CHfr0000.0Hz ✘✘ 0.0 0.0 Hz A295 Acc1 to Acc2 frequency Output frequency at which transition point, 2nd Accel1 switches to Accel2, motor range is 0.0 to 400.0 Hz ✘✘ 0.0 0.
3–28 “A” Group: Standard Functions Accel/Decel Standard acceleration and deceleration is linear. The inverter CPU can also calculate an S-curve acceleration or deceleration curve as shown. This profile is useful for favoring the load characteristics in particular applications. Curve settings for acceleration and deceleration are independently selected. To enable the S-curve, use function A097 (acceleration) and A098 (deceleration). Output frequency Accel. curve selection Target freq.
L2002 Inverter 3–29 Additional Analog Input Settings Input Range Settings – The parameters in the following table adjust the input characteristics of the analog current input. When using the inputs to command the inverter output frequency, these parameters adjust the starting and ending ranges for the current, as well as the output frequency range. Related characteristic diagrams are located in “Analog Input Settings” on page 3–14. “A” Function Func.
3–30 “A” Group: Standard Functions Analog Input Calculate Function – The inverter can mathematically combine two input sources into one value. The Calculate function can either add, subtract, or multiply the two selected sources. This provides the flexibility needed by various applications.You can use the result for the output frequency setting (use A001=10) or for the PID Process Variable (PV) input (use A075=03).
L2002 Inverter 3–31 ADD Frequency – The inverter can add or subtract an offset value to the output frequency setting which is specified by A001 (will work with any of the five possible sources). The ADD Frequency is a value you can store in parameter A145. The ADD Frequency is summed with or subtracted from the output frequency setting only when the [ADD] terminal is ON. Function A146 selects whether to add or subtract.
3–32 “A” Group: Standard Functions “A” Function Func. Code Name / SRW Display Description A154 Pot. input active range end current POT EXS%E The output frequency corresponding to the potentiometer range ending point, 0.0 range is 0.0 to 100.0 A155 Pot. input start frequency enable Configuring Drive Parameters POT LVL 01 Two options: 00... Disable 01... Enable Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) ✘✔ 0.0 0.
L2002 Inverter 3–33 “B” Group: Fine Tuning Functions The “B” Group of functions and parameters adjust some of the more subtle but useful aspects of motor control and system configuration. Automatic Restart Mode The restart mode determines how the inverter will resume operation after a fault causes a trip event. The four options provide advantages for various situations.
3–34 “B” Group: Fine Tuning Functions Instantaneous Power Failure / Under-voltage Alarm Use parameter B004 to disable or enable the instantaneous power failure / undervoltage alarm. When the alarm is enabled, parameter settings B001 (Selection of Automatic Restart Mode) and B002 (Allowable Under-voltage Power Failure Time) are not valid. “B” Function Func.
3–35 L2002 Inverter Electronic Thermal Overload Alarm Setting The thermal overload detection protects the Torque inverter and motor from overheating due to Constant torque B013 = 01 100% an excessive load. It uses a current/inverse time curve to determine the trip point. 80% Reduced torque 60% First, use B013 to select the torque characB013 = 00 teristic that matches your load. This allows the inverter to utilize the best thermal 0 Hz overload characteristic for your application.
3–36 “B” Group: Fine Tuning Functions Note 1: For inverter models 005NFE(F), 011NFE(F), and 030HFE(F), the overloadrelated parameter settings are different from the rated amperes. Therefore, be sure to set the electronic thermal overload according to the actual motor driven by the particular inverter. B012/B212 (A) B022 (A) C041 (A) Inverter rated Amperes (A) –004NFE(F) 2.60 3.90 2.60 2.60 –005NFE(F) 4.00 6.00 4.00 3.00 –007NFE(F) 4.00 6.00 4.00 4.00 –0011NFE(F) 7.10 10.65 7.10 5.
L2002 Inverter 3–37 Overload Restriction If the inverter’s output current exceeds a preset current level you specify during acceleration or constant speed, the overload restriction feature automatically reduces the output frequency to restrict the overload. This feature does not generate an alarm or trip event. You can instruct the inverter to apply overload restriction only during constant speed, thus allowing higher currents for acceleration.
3–38 “B” Group: Fine Tuning Functions “B” Function Func. Code Name / SRW Display Description B021 Overload restriction operation mode OL Mode ON B221 Overload restriction operation mode, 2nd motor 2OL Mode ON Select the operating mode during overload conditions, three options, option codes: 00... Disabled 01... Enabled for acceleration and constant speed 02...
L2002 Inverter 3–39 Software Lock Mode The software lock function keeps personnel from accidentally changing parameters in the inverter memory. Use B031 to select from various protection levels. The table below lists all combinations of B031 option codes Run and the ON/OFF state of the [SFT] input. Each Check ✔ or Ex Mode ✘ indicates whether the corresponding parameter(s) can be Edit edited. The Standard Parameters column below lists Low and Lo Hi High level access for some lock modes.
3–40 “B” Group: Fine Tuning Functions “B” Function Func. Code Name / SRW Display B031 Software lock mode selection Configuring Drive Parameters S-Lock MD1 Description Prevents parameter changes, in five options, option codes: 00... Low-level access, [SFT] input blocks all edits 01... Low-level access, [SFT] input blocks edits (except F001 and Multi-speed parameters) 02... No access to edits 03... No access to edits except F001 and Multi-speed parameters 10...
L2002 Inverter 3–41 Miscellaneous Settings The miscellaneous settings include scaling factors, initialization modes, and others. This section covers some of the most important settings you may need to configure. B080: [AM] analog signal gain – This parameter allows you to scale the analog output [AM] relative to the monitored variable. B082: Start frequency adjustment – When the inverter starts to run, the output frequency does not ramp from 0Hz.
3–42 “B” Group: Fine Tuning Functions “B” Function Func. Code Name / SRW Display Description Adjust of analog output at terminal [AM], range is 0 to 255 ✔✔ 100. 100. — Sets the starting frequency for the inverter output, range is 0.5 to 9.9 Hz ✘✔ 0.5 0.5 Hz Sets the PWM carrier (internal switching frequency), range is 2.0 to 14.0 kHz ✘✘ 5.0 5.0 kHz Select the type of initialization to occur, two option codes: 00... Trip history clear 01... Parameter initialization 02...
L2002 Inverter 3–43 In most applications a controlled deceleration is desirable, corresponding to B091=00. However, applications such as HVAC fan control will often use a free-run stop (B091=01). This practice decreases dynamic stress on system components, prolonging system life. In this case, you will typically set B088=01 in order to resume from the current speed after a free-run stop (see diagram below, right).
3–44 “B” Group: Fine Tuning Functions “B” Function Func. Code Name / SRW Display B089 Monitor display select for networked inverter PANEL d001 B091 Stop mode selection Configuring Drive Parameters STP Slct DEC Description Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) Selects the parameter displayed on the keypad display when the inverter is networked, 7 options: 01... Output frequency monitor 02... Output current monitor 03... Rotation direction monitor 04...
3–45 L2002 Inverter The graph below shows an inverter output profile that starts decelerating to a stop. At two different points during the deceleration, regenerative voltage elevates the DC bus level, exceeding the LADSTOP threshold set by B131. When the Over-voltage LADSTOP feature is enabled by B130 = 01, the inverter stops the deceleration ramp in each case until the DC bus level is again less than the threshold value.
3–46 “B” Group: Fine Tuning Functions “B” Function Func. Code Name / SRW Display Description B131 Over-voltage LADSTOP level Sets the threshold level for over-voltage LADSTOP. When the DC bus voltage is above the LADST LVL 00380V threshold value, the inverter stops deceleration until the DC bus voltage is less than the threshold setting again.
L2002 Inverter 3–47 “C” Group: Intelligent Terminal Functions The five input terminals [1], [2], [3], [4], and [5] can be configured for any of 19 different functions. The next two tables show how to configure the five terminals. The inputs are logical, in that they are either OFF or ON. We define these states as OFF=0, and ON=1. The inverter comes with default options for the five terminals. These default settings are initially unique, each one having its own setting.
3–48 “C” Group: Intelligent Terminal Functions “C” Function Func.
L2002 Inverter 3–49 NOTE: An input terminal configured for option code 18 ([RS] Reset command) cannot be configured for normally closed operation. Intelligent Input Terminal Overview Each of the five intelligent terminals may be assigned any of the options in the following table. When you program one of the option codes for terminal assignments C001 to C005, the respective terminal assumes the function role of that option code.
3–50 “C” Group: Intelligent Terminal Functions Input Function Summary Table – This table shows all twenty-four intelligent input functions at a glance. Detailed descriptions of these functions, related parameters and settings, and example wiring diagrams are in “Using Intelligent Input Terminals” on page 4–9.
L2002 Inverter 3–51 Input Function Summary Table Option Code Terminal Symbol 12 EXT 13 15 16 19 20 21 22 SFT AT RS PTC STA STP F/R External Trip Description ON When assigned input transitions OFF to ON, inverter latches trip event and displays E12 OFF No trip event for ON to OFF, any recorded trip events remain in history until Reset ON On powerup, the inverter will not resume a Run command (mostly used in the US) OFF On powerup, the inverter will resume a Run command that was ac
3–52 “C” Group: Intelligent Terminal Functions Input Function Summary Table Option Code Terminal Symbol 23 PID 24 27 Configuring Drive Parameters 28 29 31 50 51 52 PIDC UP DWN UDC OPE ADD F-TM RDY Function Name PID Disable PID Reset Description ON Temporarily disables PID loop control. Inverter output turns OFF as long as PID Enable is active (A071=01). OFF Has no effect on PID loop operation, which operates normally if PID Enable is active (A071=01).
L2002 Inverter 3–53 Input Function Summary Table Option Code Terminal Symbol 53 S-ST 255 — Note 1: Function Name Special-Set (select) 2nd Motor Data Not selected Description ON The inverter uses 2nd motor parameters for generating frequency output to motor. The selection of 1st or 2nd motor is available during Stop Mode or Run Mode.
3–54 “C” Group: Intelligent Terminal Functions Output Terminal Configuration The inverter provides configuration for logic (discrete) and analog outputs, shown in the table below. “C” Function Func. Code Name / SRW Display Description C021 Terminal [11] function OUT-TM 11 RUN 11 programmable functions available for logic (discrete) outputs (see next section) C026 Alarm relay terminal function OUT-TM RY 01 [FA1] 01 [FA1] — ✘✘ 00 [RUN] 00 [RUN] — ✘✘ 05 [AL] 05 [AL] — ✘✔ 00 output freq.
L2002 Inverter 3–55 Output Function Summary Table – This table shows all eleven functions for the logical outputs (terminals [11], [12]) at a glance. Detailed descriptions of these functions, related parameters and settings, and example wiring diagrams are in “Using Intelligent Output Terminals” on page 4–35.
3–56 “C” Group: Intelligent Terminal Functions Output Function Summary Table Option Code Terminal Symbol 09 LOG 10 ODc Function Name Logic Output Function Option Card Detection Signal Description ON when the Boolean operation specified by C143 has a logical “1” result OFF when the Boolean operation specified by C143 has a logical “0” result ON when the communications watchdog timer (period specified by P044) has timed out OFF when the communications watchdog timer is satisfied by regular co
3–57 L2002 Inverter The Error for the PID loop is the magnitude (absolute value) of the difference between the Setpoint (desired value) and Process Variable (actual value). The PID output deviation signal [OD] (output terminal function option code 04) indicates when the error magnitude has exceeded a magnitude you define. PID Error (PV–SP) deviation threshold PV Output SP C044 0 t Deviation signal 1 0 t “C” Function Func.
3–58 “C” Group: Intelligent Terminal Functions Network Communication Settings The following table lists parameters that configure the inverter’s serial communications port. The settings affect how the inverter communicates with a digital operator (such as SRW–0EX), as well as a ModBus network (for networked inverter applications). The settings cannot be edited via the network, in order to ensure network reliability.
3–59 L2002 Inverter Analog Signal Calibration Settings The functions in the following table configure the signals for the analog output terminals. Note that these settings do not change the current/voltage or sink/source characteristics—only the zero and span (scaling) of the signals. “C” Function Func. Code Name / SRW Display Description Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) ✔✔ 100.0 100.0 % C082 OI input span calibration ✔✔ 100.0 100.0 % ✔✔ 100.0 100.0 % ✔✔ 0.0 0.
3–60 “C” Group: Intelligent Terminal Functions Miscellaneous Functions The following table contains miscellaneous functions not in other function groups. “C” Function Func. Code Name / SRW Display C091 Debug mode enable DBG Slct OFF C101 Up/Down memory mode selection UP/DWN NO-STR C102 Reset selection Configuring Drive Parameters RS Slct ON Description Run Defaults Mode Edit –FE(F) –FU Units Lo Hi (EU) (USA) Displays debug parameters. Two option codes: 00... Disable 01...
L2002 Inverter 3–61 Output Logic and Timing Logic Output Function – The inverter has a built-in logic output feature. You can select any two of the other nine intelligent output options for internal inputs. Then, configure the logic function to apply the logical AND, OR, or XOR (exclusive OR) operator as desired to the two inputs. The terminal symbol for the new output is [LOG]. Use C021, C022, or C026 to route the logical result to terminal [11], [12], or the relay terminals.
3–62 “C” Group: Intelligent Terminal Functions “C” Function Func. Code Name / SRW Display C143 Logic function select LogicOPE AND Description Applies a logic function to calculate [LOG] output state, three options: 00... [LOG] = A AND B 01... [LOG] = A OR B 02...
L2002 Inverter 3–63 “H” Group: Motor Constants Functions The “H” Group parameters configure the inverter for the motor characteristics. You must manually set H003 and H004 values to match the motor. Parameter H006 is factoryset. If you want to reset the parameters to the factory default settings, use the procedure in “Restoring Factory Default Settings” on page 6–8. Use A044 to select the torque control algorithm as shown in the diagram.
3–64 “P” Group: Expansion Card Functions “P” Group: Expansion Card Functions The (optional) expansion card for the L2002 inverter has assiciated configuration data. The following table defines the functions and their value ranges. Please refer to the expansion card manual for more details. NOTE: The “P” Group parameters do not appear in the parameter list shown on the keypad display unless the expansion card is installed on the inverter. “P” Function Func.
Operations and Monitoring In This Chapter.... 4 page — Introduction ..................................................... 2 — Connecting to PLCs and Other Devices ......... 4 — Control Logic Signal Specifications ................. 6 — Intelligent Terminal Listing............................... 7 — Using Intelligent Input Terminals ..................... 9 — Using Intelligent Output Terminals ................ 35 — Analog Input Operation ................................. 53 — Analog Output Operation ........
4–2 Introduction Introduction The previous material in Chapter 3 gave a reference listing of all the programmable functions of the inverter. We suggest that you first scan through the listing of inverter functions to gain a general familiarity. This chapter will build on that knowledge in the following ways: 1. Related functions – Some parameters interact with or depend on the settings in other functions.
L2002 Inverter 4–3 Warning Messages for Operating Procedures Before continuing, please read the following Warning messages. WARNING: Be sure to turn ON the input power supply only after closing the front case. While the inverter is energized, be sure not to open the front case. Otherwise, there is the danger of electric shock. WARNING: Be sure not to operate electrical equipment with wet hands. Otherwise, there is the danger of electric shock.
4–4 Connecting to PLCs and Other Devices Connecting to PLCs and Other Devices Hitachi inverters (drives) are useful in many types of applications. During installation, the inverter keypad (or other programming device) will facilitate the initial configuration. After installation, the inverter will generally receive its control commands through the control logic connector or serial interface from another controlling device.
4–5 L2002 Inverter Example Wiring Diagram The schematic diagram below provides a general example of logic connector wiring, in addition to basic power and motor wiring covered in Chapter 2. The goal of this chapter is to help you determine the proper connections for the various terminals shown below for your specific application needs.
4–6 Control Logic Signal Specifications Control Logic Signal Specifications The control logic connectors are located just behind the front housing cover. The relay contacts are just to the left of the logic connectors. Connector labeling is shown below.
L2002 Inverter 4–7 Intelligent Terminal Listing Intelligent Inputs Use the following table to locate pages for intelligent input material in this chapter.
4–8 Intelligent Terminal Listing Intelligent INPUTS Symbol Code S-ST 53 Name Special-Set Second Motor Page 4–17 Intelligent Outputs Use the following table to locate pages for intelligent output material in this chapter.
L2002 Inverter 4–9 Using Intelligent Input Terminals Terminals [1], [2], [3], [4], and [5] are identical, programmable inputs for general use. The input circuits can use the inverter’s internal (isolated) +24V field supply or an external power supply. This section describes input circuits operation and how to connect them properly to switches or transistor outputs on field devices. The L2002 inverter features selectable sinking or sourcing inputs.
4–10 Using Intelligent Input Terminals The two diagrams below show input wiring circuits using the inverter’s internal +24V supply. Each diagram shows the connection for simple switches, or for a field device with transistor outputs. Note that in the lower diagram, it is necessary to connect terminal [L] only when using the field device with transistors. Be sure to use the correct SR/SK switch position shown for each wiring diagram.
L2002 Inverter 4–11 The two diagrams below show input wiring circuits using an external supply. If using the upper wiring diagram, be sure to use a diode with the external supply. This will prevent a power supply contention in case the SR/SK switch is accidentally placed in the incorrect position. Be sure to use the correct SR/SK switch position shown for each wiring diagram.
4–12 Using Intelligent Input Terminals Forward Run/Stop and Reverse Run/Stop Commands: When you input the Run command via the terminal [FW], the inverter executes the Forward Run command (high) or Stop command (low). When you input the Run command via the terminal [RV], the inverter executes the Reverse Run command (high) or Stop command (low).
L2002 Inverter 4–13 Multi-Speed Select The inverter can store up to 16 different target frequencies (speeds) that the motor output uses for steady-state run condition. These speeds are accessible through programming four of the intelligent terminals as binary-encoded inputs CF1 to CF4 per the table to the right. These can be any of the six inputs, and in any order. You can use fewer inputs if you need eight or fewer speeds.
4–14 Option Code Using Intelligent Input Terminals Terminal Symbol Function Name Input State Valid for inputs: C001, C002, C003, C004, C005 Required settings: F001, A001 = 02, A020 to A035 Notes: • When programming the multi-speed settings, be sure to press the Store key each time and then set the next multi-speed setting. Note that when the key is not pressed, no data will be set.
L2002 Inverter 4–15 Jogging Command The Jog input [JG] is used to command the motor to rotate slowly in small increments for manual operation. The speed is limited to 10 Hz. The frequency for the jogging operation is set by parameter A038. Jogging does not use an acceleration ramp, so we recommend setting the jogging frequency A038 to 5 Hz or less to prevent tripping.
4–16 Using Intelligent Input Terminals External Signal for DC Braking When the terminal [DB] is turned ON, the DC braking feature is enabled. Set the following parameters when the external DC braking terminal [DB] is to be used: • A053 – DC braking delay time setting. The range is 0.1 to 5.0 seconds. Scenario 1 [FW, RV] [DB] 1 0 1 0 Output frequency • A054 – DC braking force setting. The range is 0 to 100%. t The scenarios to the right help show how DC braking works in various situations.
L2002 Inverter 4–17 Set Second Motor and Special-Set Second Motor If you assign the [SET] or [S-ST] function to an intelligent input terminal, you can select between two sets of motor parameters. The second parameters store an alternate set of motor characteristics. Two type of inputs are available: • Set Second Motor - The inverter can select a different motor only in Stop Mode. • Special-Set Second Motor - The inverter can select a different motor in either Stop Mode or Run Mode.
4–18 Using Intelligent Input Terminals Two-stage Acceleration and Deceleration When terminal [2CH] is turned ON, the Output inverter changes the rate of acceleration and frequency deceleration from the initial settings (F002 second and F003) to use the second set of accelerainitial tion/deceleration values. When the terminal is turned OFF, the inverter is returned to the 1 [2CH] original acceleration and deceleration time 0 (F002 acceleration time 1, and F003 decelera- [FW], 1 [RV] 0 tion time 1).
L2002 Inverter 4–19 Free-run Stop When the terminal [FRS] is turned ON, the inverter stops the output and the motor enters the free-run state (coasting). If terminal [FRS] is turned OFF, the output resumes sending power to the motor if the Run command is still active. The free-run stop feature works with other parameters to provide flexibility in stopping and starting motor rotation.
4–20 Using Intelligent Input Terminals External Trip When the terminal [EXT] is turned ON, the inverter enters the trip state, indicates error code E12, and stops the output. This is a general purpose interrupt type feature, and the meaning of the error depends on what you connect to the [EXT] terminal. Even if the [EXT] input is turned OFF, the inverter remains in the trip state. You must reset the inverter or cycle power to clear the error, returning the inverter to the Stop Mode.
L2002 Inverter 4–21 Unattended Start Protection If the Run command is already set when power is turned ON, the inverter starts running immediately after powerup. The Unattended Start Protection (USP) function prevents that automatic startup, so that the inverter will not run without outside intervention. When USP is active and you need to reset an alarm and resume running, either turn the Run command OFF, or perform a reset operation by the terminal [RS] input or the keypad Stop/reset key.
4–22 Using Intelligent Input Terminals Software Lock When the terminal [SFT] is turned ON, the data of all the parameters and functions (except the output frequency, depending on the setting of B031) is locked (prohibited from editing). When the data is locked, the keypad keys cannot edit inverter parameters. To edit parameters again, turn OFF the [SFT] terminal input. Use parameter B031 to select whether the output frequency is excluded from the lock state or is locked as well.
L2002 Inverter 4–23 Analog Input Current/Voltage Select The [AT] terminal selects whether the inverter uses the voltage [O] or current [OI] input terminals for external frequency control. When intelligent input [AT] is ON, you can set the output frequency by applying a current input signal at [OI]-[L]. When the [AT] input is OFF, you can apply a voltage input signal at [O]-[L] to set the output frequency.
4–24 Using Intelligent Input Terminals Reset Inverter The [RS] terminal causes the inverter to execute the reset operation. If the inverter is in Trip Mode, the reset cancels the Trip state. [RS] When the signal [RS] is turned ON and OFF, the inverter executes the reset operation. The Alarm minimum pulse width for [RS] must be 12 ms signal or greater. The alarm output will be cleared within 30 ms after the onset of the Reset command. 12 ms minimum 1 0 approx.
L2002 Inverter 4–25 Thermistor Thermal Protection Motors that are equipped with a PTC thermistor can be protected from overheating. Input terminal [5] has the unique ability to sense a thermistor resistance. When the resistance value of the thermistor connected to terminal [PTC] at [5] and [L] is more than 3 k Ω ±10%, the inverter enters the Trip Mode, turns OFF the output to the motor, and indicates the trip status E35.
4–26 Using Intelligent Input Terminals Three-wire Interface Operation The 3-wire interface is an industry standard motor control interface. This function uses two inputs for momentary contact start/stop control, and a third for selecting forward or reverse direction. To implement the 3-wire interface, assign 20 [STA] (Start), 21 [STP] (Stop), and 22 [F/R] (Forward/Reverse) to three of the intelligent input terminals. Use a momentary contact for Start and Stop.
L2002 Inverter 4–27 The diagram below shows the use of 3-wire control. STA (Start Motor) is an edge-sensitive input; an OFF-to-ON transition gives the Start command. The control of direction is level-sensitive, and the direction may be changed at any time. STP (Stop Motor) is also a level-sensitive input.
4–28 Using Intelligent Input Terminals PID ON/OFF and PID Clear The PID loop function is useful for controlling motor speed to achieve constant flow, pressure, temperature, etc. in many process applications. The PID Disable function temporarily suspends PID loop execution via an intelligent input terminal. It overrides the parameter A071 (PID Enable) to stop PID execution and return to normal motor frequency output characteristics. the use of PID Disable on an intelligent input terminal is optional.
L2002 Inverter 4–29 Remote Control Up and Down Functions The [UP] [DWN] terminal functions can adjust the output frequency for remote control while the motor is running. The acceleration time and deceleration time of this function is same as normal operation ACC1 and DEC1 (2ACC1,2DEC1). The input terminals operate according to these principles: • Acceleration - When the [UP] contact is turned ON, the output frequency accelerates from the current value.
4–30 Using Intelligent Input Terminals It is possible for the inverter to retain the frequency set from the [UP] and [DWN] terminals through a power loss. Parameter C101 enables/disables the memory. If disabled, the inverter retains the last frequency before an UP/DWN adjustment. Use the [UDC] terminal to clear the memory and return to the original set output frequency. Option Code Terminal Symbol 27 UP 28 29 DWN UDC Function Name Remote Control UP Function (motorized speed pot.
L2002 Inverter 4–31 Force Operation from Digital Operator This function permits a digital operator interface to override the following two settings in the inverter: • A001 - Frequency source setting • A002 - Run command source setting When using the [OPE] terminal input, typically A001 and A002 are configured for sources other than the digital operator interface for the output frequency and Run command sources, respectively.
4–32 Using Intelligent Input Terminals ADD Frequency Enable The inverter can add or subtract an offset value to the output frequency setting which is specified by A001 (will work with any of the five possible sources). The ADD Frequency is a value you can store in parameter A145. The ADD Frequency is summed with or subtracted from the output frequency setting only when the [ADD] terminal is ON. Function A146 selects whether to add or subtract.
L2002 Inverter 4–33 Force Terminal Mode The purpose of this intelligent input is to allow a device to force the inverter to allow control of the following two parameters via the control terminals: • A001 - Frequency source setting (01 = control terminals [FW] and [RV]) • A002 - Run command source setting (01 = control terminals [O] or [OI]) Some applications will require one or both settings above to use a source other than the terminals.
4–34 Using Intelligent Input Terminals Quick Start Enable When the [RDY] input is ON, the inverter is always in Run Mode, even when the motor rotation has stopped. The pupose of the quick start feature is to improve (decrease) the startup time of the motor in response to a Run Command. CAUTION: While the [RDY] input is ON, voltage will be present on the output of the inverter, even when the motor is still. In this case: • Do not touch the motor output terminals.
4–35 L2002 Inverter Using Intelligent Output Terminals The intelligent output terminals are programmable in a similar way to the intelligent input terminals. The inverter has several output functions that you can assign individually to three physical logic outputs. Two of the outputs are open-collector transistors, and the third output is the alarm relay (form C – normally open and normally closed contacts).
4–36 Using Intelligent Output Terminals Internal Relay Output The inverter has an internal relay output with normally open and normally closed contacts (Type 1 form C). The output signal that controls the relay is configurable; the Alarm Signal is the default setting. Thus, the terminals are labeled [AL0], [AL1], [AL2], as shown to the right. However, you can assign any one of the nine intelligent outputs to the relay.
4–37 L2002 Inverter Output Signal ON/OFF Delay Function Intelligent outputs including terminals [11], [12], and the output relay, have configurable signal transition delays. Each output can delay either the OFF-to-ON or ON-to-OFF transitions, or both. Signal transition delays are variable from 0.1 to 100.0 seconds. This feature is useful in applications that must tailor inverter output signals to meet timing requirements of certain external devices.
4–38 Using Intelligent Output Terminals Run Signal When the [RUN] signal is selected as an intelligent output terminal, the inverter outputs a signal on that terminal when it is in Run Mode. The output logic is active low, and is the open collector type (switch to ground). [FW], 1 [RV] 0 B082 Output freq. start freq.
L2002 Inverter 4–39 Frequency Arrival Signals The Frequency Arrival group of outputs help coordinate external systems with the current velocity profile of the inverter. As the name implies, output [FA1] turns ON when the output frequency arrives at the standard set frequency (parameter F001). Output [FA2] relies on programmable accel/ decel thresholds for increased flexibility.
4–40 Using Intelligent Output Terminals Operations and Monitoring Frequency arrival output [FA1] uses the Output standard output frequency (parameter freq. F001) as the threshold for switching. In the figure to the right, Frequency Arrival [FA1] turns ON when the output frequency gets within 0.5 Hz below or 1.5 Hz above the target constant 0 frequency. This provides hysteresis that prevents output chatter near the threshold FA1 value.
L2002 Inverter 4–41 Overload Advance Notice Signal When the output current exceeds a preset value, the [OL] terminal signal turns ON. The parameter C041 sets the overload threshold. The overload detection circuit operates during powered motor operation and during regenerative braking. The output circuits use open-collector transistors, and are active low.
4–42 Using Intelligent Output Terminals Output Deviation for PID Control The PID loop error is defined as the magnitude (absolute value) of the difference between the Setpoint (target value) and the Process Variable (actual value). When the error magnitude exceeds the preset value for C044, the [OD] terminal signal turns ON. Refer to “PID Loop Operation” on page 4–56.
4–43 L2002 Inverter Alarm Signal The inverter alarm signal is active when a fault has occurred and it is in the Trip Mode (refer to the diagram at right). When the fault is cleared the alarm signal becomes inactive. STOP RESET Run Stop RUN STOP RESET We must make a distinction between the alarm Fault Trip Fault signal AL and the alarm relay contacts [AL0], [AL1] and [AL2].
4–44 Using Intelligent Output Terminals The alarm relay output can be configured in two main ways: • Trip/Power Loss Alarm – The alarm relay is configured as normally closed (C036=1) by default, shown below (left). An external alarm circuit that detects broken wiring also as an alarm connects to [AL0] and [AL1]. After powerup and short delay (< 2 seconds), the relay energizes and the alarm circuit is OFF.
L2002 Inverter 4–45 Analog Input Disconnect Detect This feature is useful when the inverter receives a speed reference from an external device. Upon input signal loss at either the [O] or [OI] terminal, the inverter normally just decelerates the motor to a stop. However, the inverter can use the intelligent output terminal [Dc] to signal other machinery that a signal loss has occurred. Voltage signal loss at [O] terminal - Parameter B082 is the Start Frequency Adjustment.
4–46 Using Intelligent Output Terminals PID Second Stage Output The inverter has a built-in PID loop feature for two-stage control, useful for certain applications such as building ventilation or heating and cooling (HVAC). In an ideal control environment, a single PID loop controller (stage) would be adequate. However, in certain conditions, the maximum output energy from the first stage is not enough to maintain the Process Variable (PV) at or near the Setpoint (SP).
4–47 L2002 Inverter To use the PID Second Stage Output feature, you will need to choose upper and lower limits for the PV, via C053 and C052 respectively. As the timing diagram below shows, these are the thresholds Stage #1 inverter uses to turn ON or OFF Stage #2 inverter via the [FBV] output. The vertical axis units are percent (%) for the PID setpoint, and for the upper and lower limits. The output frequency, in Hz, is superimposed onto the same diagram.
4–48 Using Intelligent Output Terminals Option Code Terminal Symbol 07 FBV Function Name Feedback Value Check Output State Description ON • Transitions to ON when the inverter is in RUN Mode and the PID Process Variable (PV) is less than the Feedback Low Limit (C053) OFF • Transitions to OFF when the PID Feedback Value (PV) exceeds the PID High Limit (C052) • Transitions to OFF when the inverter goes from Run Mode to Stop Mode Valid for outputs: 11, 12, AL0 – AL2 Required settings: A076, C05
L2002 Inverter 4–49 Network Detection Signal The Network Detection Signal output indicates the general status of network communications. The inverter has a programmable watchdog timer to monitor network activity. Parameter C077 sets the time-out period. If communications stop or pause longer than the specified time-out period, the Ndc output turns ON.
4–50 Using Intelligent Output Terminals Master Slave Watchdog timer C077 =xx.xx sec. Time-out [NDc] Alarm C076 =00 or 01 t Logic Output Function The Logic Output Function uses the inverter’s built-in logic feature. You can select any two of the other nine intelligent output options for internal inputs (use C141 and C142). Then, use C143 to configure the logic function to apply the logical AND, OR, or XOR (exclusive OR) operator as desired to the two inputs.
L2002 Inverter Option Code Terminal Symbol 09 LOG Function Name Logic Output Function Valid for outputs: 11, 12, AL0 – AL2 Required settings: C141, C142, C143 Notes: Output State 4–51 Description ON when the Boolean operation specified by C143 has a logical “1” result OFF when the Boolean operation specified by C143 has a logical “0” result Example (requires output configuration— see page 3–54): LOG Inverter output terminal circuit CM2 12 11 + – RY Example for terminals [AL0], [AL1], [A
4–52 Using Intelligent Output Terminals Option Card Detection Signal The expansion card provides a CANopen network interface for the inverter. When the card is installed, you can configure an intelligent input to indicate the network status. The watchdog timer value is set by parameter P044.
L2002 Inverter 4–53 Analog Input Operation The L2002 inverters provide for analog input to command the inverter frequency output value. The analog input terminal group includes the [L], [OI], [O], and [H] terminals on the control connector, which provide for Voltage [O] or Current [OI] input. All analog input signals must use the analog ground [L]. If you use either the voltage or current analog input, you must select one of them using the logic input terminal function [AT] analog type.
4–54 Analog Input Operation The following table shows the available analog input settings. Parameter A005 and the input terminal [AT] determine the External Frequency Command input terminals that are available, and how they function. The analog inputs [O] and [OI] use terminal [L] as the reference (signal return).
4–55 L2002 Inverter Analog Output Operation In inverter applications it is useful to monitor the inverter operation from a remote location or from the front panel of an inverter enclosure. In some cases, this requires only a panel-mounted volt meter. In other cases, a controller such as a PLC may provide the inverter’s frequency command, and require inverter feedback data (such as output frequency or output current) to confirm actual operation. The analog output terminal [AM] serves these purposes.
4–56 PID Loop Operation PID Loop Operation In standard operation, the inverter uses a reference source selected by parameter A001 for the output frequency, which may be a fixed value (F001), a variable set by the front panel potentiometer, or value from an analog input (voltage or current). To enable PID operation, set A071 = 01. This causes the inverter to calculate the target frequency, or setpoint. A calculated target frequency can have a lot of advantages.
L2002 Inverter 4–57 PID Loop Configuration The inverter’s PID loop algorithm is configurable for various applications. PID Output Limit - The PID loop controller has a built-in output limit function. This function monitors the difference between the PID setpoint and the loop output (inverter output frequency), measured as a percentage of the full scale range of each. The limit is specified by parameter A078.
4–58 Configuring the Inverter for Multiple Motors Configuring the Inverter for Multiple Motors Simultaneous Connections For some applications, you may need to connect two or more motors (wired in parallel) to a single inverter’s output. For example, this is common in conveyor applications where two separate conveyors need to have approximately the same speed. The use of two motors may be less expensive than making the mechanical link for one motor to drive multiple conveyors.
L2002 Inverter 4–59 Having two motor profiles lets you store two “personalities” for motors in one inverter’s memory. The inverter allows the final selection between the two motor types to be made in the field through the use of an intelligent input terminal function [SET]. This provides an extra level of flexibility needed in particular situations. See the following table. Parameters for the second motor have a function code of the form x2xx.
Inverter System Accessories In This Chapter.... 5 page — Introduction ..................................................... 2 — Component Descriptions................................. 3 — Dynamic Braking .............................................
5–2 Introduction Introduction A motor control system will obviously include a motor and inverter, as well as fuses for safety. If you are connecting a motor to the inverter on a test bench just to get started, that’s all you may need for now. But a fully developed system can also have a variety of additional components. Some can be for noise suppression, while others may enhance the inverter’s braking performance.
L2002 Inverter 5–3 Component Descriptions AC Reactors, Input Side This is useful in suppressing harmonics induced on the power supply lines, or when the main power voltage imbalance exceeds 3% (and power source capacity is more than 500 kVA), or to smooth out line fluctuations. It also improves the power factor.
5–4 Component Descriptions Zero-phase Reactor (RF Noise Filter) The zero-phase reactor helps reduce radiated noise from the inverter wiring. It can be used on the input or output side of the inverter. The example zero-phase reactor shown to the right comes with a mounting bracket. The wiring must go through the opening to reduce the RF component of the electrical noise. Loop the wires three times (four turns) to attain the full RF filtering effect.
5–5 L2002 Inverter Dynamic Braking Introduction The purpose of dynamic braking is to improve the ability of the inverter to stop (decelerate) the motor and load.
5–6 Dynamic Braking Use one BRD–E2 braking unit for the braking torque listed in the following table. Note the column meanings in the tables: • Column “A” = Average braking torque from 60 Hz to 3 Hz.
5–7 L2002 Inverter 400V Class Inverters – The following tables specify the braking options for 400V class L2002 inverters and the braking torque for each option. You can connect a single braking unit to the inverter, or two braking units for additional braking torque. Braking unit Inverter + Braking unit – Use one BRD–EZ2 braking unit for the braking torque listed in the following table.
Troubleshooting and Maintenance In This Chapter.... 6 page — Troubleshooting............................................... 2 — Monitoring Trip Events, History, & Conditions . 5 — Restoring Factory Default Settings ................. 8 — Maintenance and Inspection ........................... 9 — Warranty........................................................
Troubleshooting and Maintenance 6–2 Troubleshooting Troubleshooting Safety Messages Please read the following safety messages before troubleshooting or performing maintenance on the inverter and motor system. WARNING: Wait at least five (5) minutes after turning OFF the input power supply before performing maintenance or an inspection. Otherwise, there is the danger of electric shock. WARNING: Make sure that only qualified personnel will perform maintenance, inspection, and part replacement.
L2002 Inverter 6–3 Troubleshooting Tips Symptom/condition Probable Cause Solution • Is the frequency command source • Make sure the parameter A001 parameter setting correct? • Is the Run command source A002 parameter setting correct? setting A001 is correct. • Make sure the parameter setting A002 is correct. • Is power being supplied to termi- • Check terminals [L1], [L2], nals [L1], [L2], and [L3/N]? If so, the POWER lamp should be ON.
6–4 Troubleshooting Troubleshooting and Maintenance Symptom/condition Probable Cause • If using the analog input, is the current or voltage at [O] or [OI]? Solution • Check the wiring. • Check the potentiometer or signal generating device. • Is the load too heavy? The motor speed will not reach the target frequency (desired speed). overload restriction feature (reduces output as needed).
L2002 Inverter 6–5 Fault Detection and Clearing The microprocessor in the inverter detects a variety STOP of fault conditions and captures the event, recordRESET Run Stop ing it in a history table. The inverter output turns RUN OFF, or “trips” similar to the way a circuit breaker STOP trips due to an over-current condition. Most faults RESET Fault occur when the motor is running (refer to the Trip Fault diagram to the right). However, the inverter could have an internal fault and trip in Stop Mode.
Troubleshooting and Maintenance 6–6 Monitoring Trip Events, History, & Conditions Error Code Name Cause(s) E1 2 External trip A signal on an intelligent input terminal configured as EXT has occurred. The inverter trips and turns OFF the output to the motor. E1 3 USP When the Unattended Start Protection (USP) is enabled, an error occurred when power is applied while a Run signal is present. The inverter trips and does not go into Run Mode until the error is cleared.
L2002 Inverter 6–7 Trip History and Inverter Status The following Monitor Menu map shows how to access the error codes. When fault(s) exist, you can review their details by first selecting the proper function: D081 is the most recent, and D083 is the oldest. Monitor Menu 2 1 d 083 2 2 1 d 081 2 d 082 FUNC. No error Error exists? FUNC. No Yes 2 E 09 1 DC bus voltage at trip point 2 15 1 Motor current at trip point 2 28 4.0 1 Output frequency at trip point 2 2.5 1 Error Code 2 1 0.
Troubleshooting and Maintenance 6–8 Restoring Factory Default Settings Restoring Factory Default Settings You can restore all inverter parameters to the original factory (default) settings for the intended country of use. After initializing the inverter, use the powerup test in Chapter 2 to get the motor running again. To initialize the inverter, follow the steps below. No. Action Display Func./Parameter 1 Use the FUNC. , 1 , and 2 keys to navigate to the “B” Group.
L2002 Inverter 6–9 Monthly and Yearly Inspection Chart Inspection Cycle Item Inspected Check for... Month Control circuit Criteria Ambient environment Extreme temperatures & humidity ✔ Thermometer, hygrometer Ambient temperature between -10 to 40°C, non-condensing Major devices Abnormal noise & vib.
6–10 Maintenance and Inspection Troubleshooting and Maintenance Megger Test The megger is a piece of test equipment that uses a high voltage to determine if an insulation degradation has occurred. For inverters, it is important that the power terminals be isolated from the Earth GND terminal via the proper amount of insulation. The circuit diagram below shows the inverter wiring for performing the megger test. Just follow the steps to perform the test: 1.
L2002 Inverter 6–11 Spare parts Quantity Part description Symbol Notes Used Spare Cooling fan FAN 1 1 015NF, 022NF, 037LF, 015HF to 075HF Case CV 1 1 • • • • Front case Key cover Case Bottom cover Capacitor Life Curve The DC bus inside the inverter uses a large capacitor as shown in the diagram below. The capacitor handles high voltage and current as it smooths the power for use by the inverter. So, any degradation of the capacitor will affect the performance of the inverter.
6–12 Maintenance and Inspection Troubleshooting and Maintenance General Inverter Electrical Measurements The following table specifies how to measure key system electrical parameters. The diagrams on the next page show inverter-motor systems and the location of measurement points for these parameters.
L2002 Inverter 6–13 Single-phase Measurement Diagram Inverter L1 L1 I1 U T1 I1 EU-V E1 W1 V T2 I1 EU-V N N W W01 Motor W02 T3 I1 EU-V Three-phase Measurement Diagram Inverter L1 R I1 E1 L2 L3 EU-V S E1 V T2 EU-V W W01 I1 W02 T I3 T1 I1 W01 I2 E1 U W02 T3 I1 EU-V Motor Troubleshooting and Maintenance The figures below show measurement locations for voltage, current, and power measurements listed in the table on the previous page.
6–14 Maintenance and Inspection Troubleshooting and Maintenance Inverter Output Voltage Measurement Techniques Taking voltage measurements around drives equipment requires the right equipment and a safe approach. You are working with high voltages and high-frequency switching waveforms that are not pure sinusoids. Digital voltmeters will not usually produce reliable readings for these waveforms. And, it is usually risky to connect high voltage signals to oscilloscopes.
6–15 L2002 Inverter IGBT Test Method 1. Disconnect input power to terminals [R, S, and T] and motor terminals [U, V, and W]. 2. Disconnect any wires from terminals [+] and [–] for regenerative braking. 3. Use a Digital Volt Meter (DVM) and set it for 1Ω resistance range. You can check the status of the charging state of terminals [R, S, T, U, V, W, +, and –] of the inverter and the probe of the DVM by measuring the charging state.
Troubleshooting and Maintenance 6–16 Warranty Warranty Warranty Terms The warranty period under normal installation and handling conditions shall be two (2) years from the date of manufacture (“DATE” on product nameplate), or one (1) year from the date of installation, whichever occurs first. The warranty shall cover the repair or replacement, at Hitachi's sole discretion, of ONLY the inverter that was installed. 1.
Glossary and Bibliography In This Appendix.... A page — Glossary .......................................................... 2 — Bibliography ....................................................
A–2 Glossary Appendix A Glossary Ambient Temperature The air temperature in the chamber containing a powered electronic unit. A unit’s heat sinks rely on a lower ambient temperature in order to dissipate heat away from sensitive electronics. Arrival Frequency The arrival frequency refers to the set output frequency of the inverter for the constant speed setting. The arrival frequency feature turns on an output when the inverter reaches the set constant speed.
L2002 Inverter A–3 The inverter DC braking feature stops the AC commutation to the motor, and sends a DC current through the motor windings in order to stop the motor. Also called “DC injection braking,” it has little effect at high speed, and is used as the motor is nearing a stop. Deadband In a control system, the range of input change for which there is no perceptible change in the output. In PID loops, the error term may have a dead band associated with it.
Appendix A A–4 Glossary Free-run Stop A method of stopping a motor, caused when the inverter simply turns OFF its motor output connections. This may allow the motor and load to coast to a stop, or a mechanical brake may intervene and shorten the deceleration time. Frequency Setting While frequency has a broad meaning in electronics, it typically refers to motor speed for variable-frequency drives (inverters).
L2002 Inverter A–5 Usually done manually, a jog command from an operator’s panel requests the motor/drive system to run indefinitely in a particular direction, until the machine operator ends the jog operation. Jump Frequency A jump frequency is a point on the inverter output frequency range that you want the inverter to skip around. This feature may be used to avoid a resonant frequency, and you can program up to three jump frequencies in the inverter.
Appendix A A–6 Glossary Process Variable A physical property of a process that is of interest because it affects the quality of the primary task accomplished by the process. For an industrial oven, temperature is the process variable. See also PID Loop and Error. PWM Pulse-width modulation: A type of AC adjustable frequency drive that accomplishes frequency and voltage control at the output section (inverter) of the drive.
L2002 Inverter A–7 The setpoint is the desired value of a process variable of interest. See also Process Variable (PV) and PID Loop. Single-phase power An AC power source consisting of Hot and Neutral wires. An Earth Ground connection usually accompanies them. In theory, the voltage potential on Neutral stays at or near Earth Ground, while Hot varies sinusoidally above and below Neutral. This power source is named Single Phase to differentiate it from three-phase power sources.
Appendix A A–8 Bibliography Torque The rotational force exerted by a motor shaft. The units of measurement consist of the distance (radius from shaft center axis) and force (weight) applied at that distance. Units are usually given as pound-feet, ounce-inches, or Newton-meters. Transistor A solid state, three-terminal device that provides amplification of signals and can be used for switching and control. While transistors have a linear operating range, inverters use them as high-powered switches.
ModBus Network Communications In This Appendix.... B page — Introduction ..................................................... 2 — Connecting the Inverter to ModBus................. 3 — Network Protocol Reference ........................... 6 — ModBus Data Listing .....................................
B–2 Introduction Introduction L2002 Series inverters have built-in RS-485 serial communications, featuring the ModBus RTU protocol. The inverters can connect directly to existing factory networks or work with new networked applications, without any extra interface equipment. The specifications for L2002 serial communications are in the following table.
L2002 Inverter B–3 Connecting the Inverter to ModBus Follow the steps in this section to connect the inverter to the ModBus network. 1. Open Serial Port Cover - The inverter keypad has a hinged dust cover protecting the serial port connector. Lift the cover from the bottom edge, and tilt upward as shown (below left). 2. Modular Interconnect Removal - With the serial port cover opened, notice the RJ45 modular connector behind it.
B–4 Connecting the Inverter to ModBus 4. Terminate Network Wiring - The RS-485 wiring must be terminated at each physical end to suppress electrical reflections and help decrease transmission errors. The L2002 communications port does not include a termination resistor. Therefore, you will need to add termination to the inverter if it is at the end of the network wiring. Select termination resistors that match the characteristic impedance of the network cable.
L2002 Inverter B–5 6. Inverter Parameter Setup - The inverter has several settings related to ModBus communications. The table below lists them together. The Required column indicates which parameters must be set properly to allow communications. You may need to refer to the host computer documentation in order to match some of its settings. Func. Code Name Required Settings Frequency source setting ✔ 00... Keypad potentiometer 01... Control terminal 02... Function F001 setting 03...
B–6 Network Protocol Reference Network Protocol Reference Transmission procedure The transmission between the external control equipment and the inverter takes the procedure below External control equipment Query Response Appendix B Inverter t Latency time (silent interval plus C078 setting) • Query - A frame sent from the external control equipment to the inverter • Response - A frame returned from inverter to the external control equipment The inverter returns the response only after the inverter r
L2002 Inverter B–7 Data: • A function command is set here. • The data format used in the L2002 series is corresponding to the Modbus data format below.
B–8 Network Protocol Reference Message Configuration: Response Transmission time required: • A time period between reception of a query from the master and transmission of a response from the inverter is the sum of the silent interval (3.5 characters long) + C078 (transmission latency time). • The master must provide a time period of the silent interval (3.5 characters long or longer) before sending another query to an inverter after receiving a response from the inverter.
L2002 Inverter B–9 No response occurs: In the cases below, the inverter ignores a query and returns no response. • When receiving a broadcasting query • When detecting a transmission error in reception of a query • When the slave address set in the query is not equal to the slave address of the inverter • When a time interval between data elements constituting a message is shorter than 3.
B–10 Network Protocol Reference Explanation of function codes Read Coil Status [01h]: This function reads the status (ON/OFF) of selected coils. An example follows below. • Read intelligent input terminals [1] to [5] of an inverter having a slave address “8.” • This example assumes the intelligent input terminals have terminal states listed below. Appendix B Item Data Intelligent input terminal [1] [2] [3] [4] [5] Coil Status ON ON ON OFF ON Query: Response: No.
B–11 L2002 Inverter • When a read coil is outside the defined coils, the final coil data to be transmitted contains “0“as the status of the coil outside the range. • When the Read Coil Status command cannot be executed normally, see the exception response. Read Holding Register [03h]: This function reads the contents of the specified number of consecutive holding registers (of specified register addresses). An example follows below.
B–12 Network Protocol Reference The data set in the response is as follows: Response Buffer 4 5 6 7 8 9 Coil Number + 0 (high order) + 0 (low order) + 1 (high order) + 1 (low order) + 2 (high order) + 2 (low order) Coil Status 00h 07h 00h 09h 00h FFh Trip data Over-voltage trip Under-voltage trip No trip Appendix B When the Read Coil Status command cannot be executed normally, refer to the exception response. Write in Coil [05h]: This function writes data in a single coil.
B–13 L2002 Inverter When writing in a selected coil fails, see the exception response. Write in Holding Register [06h]: This function writes data in a specified holding register. An example follows: • Write “50Hz” as the first Multi-speed 0 (A020) in an inverter having slave address “5.” • This example uses change data “500(1F4h)” to set “50Hz” as the data resolution of the register “003Ah” holding the first Multi-speed 0 (A020) is 0.1Hz Query: Field Name Example (Hex) No.
B–14 Network Protocol Reference Loopback Test [08h]: This function checks a master-slave transmission using any test data. An example follows: • Send test data to an inverter having slave address “1” and receiving the test data from the inverter (as a loopback test). Query: Appendix B No. Response: Field Name Example (Hex) No.
B–15 L2002 Inverter Write in Coils [0Fh]: This function writes data in consecutive coils. An example follows: • Change the state of intelligent input terminal [1] to [5] of an inverter having a slave address “5.” • This example assumes the intelligent input terminals have terminal states listed below. Item Intelligent input terminal Data [1] [2] [3] [4] [5] 7 8 9 10 11 ON ON ON OFF ON Coil number Terminal status No. Response: Field Name Example (Hex) No.
B–16 Network Protocol Reference Writing in Holding Registers [10h]: This function writes data in consecutive holding registers. An example follows: • Write “3000 seconds” as the first acceleration time 1 (F002) in an inverter having a slave address “1.” • This example uses change data “300000(493E0h)” to set “3000 seconds” as the data resolution of the registers “0024h” and “0025h” holding the first acceleration time 1 (F002) is 0.01 second. Query: Appendix B No. Response: Field Name Example (Hex) No.
L2002 Inverter B–17 Exception Response: When sending a query (excluding a broadcasting query) to an inverter, the master always requests a response from the inverter. Usually, the inverter returns a response according to the query. However, when finding an error in the query, the inverter returns an exception response. The exception response consists of the fields shown below. Field Configuration Slave address Function code Exception code The content of each field is explained below.
B–18 Network Protocol Reference Store New Register Data (ENTER command) After being written in a selected holding register by the Write in Holding Register command (06h) or in selected holding registers by the Write in Holding Registers command (10h), new data is temporary and still outside the storage element of the inverter. If power to the inverter is shut off, this new data is lost and the previous data returns. The ENTER command is used to store this new data in the storage element of the inverter.
L2002 Inverter B–19 ModBus Data Listing ModBus Coil List The following tables list the primary coils for the inverter interface to the network. The table legend is given below. • Coil Number - The network register address offset for the coil, in hex and decimal. Actual network address is 30001 + offset. The coil data is a single bit (binary) value.
B–20 ModBus Data Listing List of Coil Numbers Coil Number R/W Description 0013h 00019 (Reserved) R — 0014h 00020 Alarm signal R 0..... Normal 1..... Trip 0015h 00021 PID deviation signal R 0016h 00022 Overload signal R 0..... OFF 1..... ON 0017h 00023 Frequency arrival signal (set frequency or above) R 0018h 00024 Frequency arrival signal (at constant speed) R 0019h 00025 Run Mode signal R 001Ah 00026 Data writing R 0..... Normal status 1.....
L2002 Inverter B–21 ModBus Holding Registers The following tables list the holding registers for the inverter interface to the network. The table legend is given below.
B–22 ModBus Data Listing List of Holding Registers Network Data Func. Code Name R/W Description Reg.ister hex Res. RW PID loop PV value from the network (set A076=02 to enable this setting), range is 0.0 to 100.0% 0005h 00005 0 to 1000 0.1% D001 Output frequency monitor R Real-time display of output frequency to motor, from 0.0 to 400.0 Hz 1002h 04098 0 to 4000 0.
B–23 L2002 Inverter List of Holding Registers Network Data Func. Code Name R/W Description Reg.ister hex D080 Trip counter Note 1: R Number of trip events, range is 0 to 65535 Range Res. 0 to 65535 1 trip event dec. 0011h 00024 Assume that the inverter current rating is 1000 (for D002). Holding Registers, “D” Group Monitor Functions Network Data Func. Code Name R/W Description Register Res. hex D081 D082 Trip monitor 1 Trip monitor 2 dec.
B–24 ModBus Data Listing Holding Registers, “D” Group Monitor Functions Network Data Func. Code Name R/W Description Register Res. hex Appendix B D083 Trip monitor 3 dec. R Trip monitor 1: factor code 0026h 00272 — R Frequency 0028h 00273 0.1 Hz R Current 002Ah 00274 0.1 % R Voltage 002Bh 00275 0.1 V R Run time (high) 002Ch 00276 1. h R Run time (low) 002Dh 00277 R ON time (high) 002Eh 00278 R ON time (low) 002Fh 00279 1.
L2002 Inverter B–25 The table below lists the holding registers for the “F” Group Main Profile Parameters. Holding Registers, “F” Group Main Profile Parameters Network Data Func. Code Name R/W Description Register hex R/W Standard default acceleration, range is 0.01 to 3000 sec. 1014h 04116 F002 (low) R/W 1015h 04117 F202 Acceleration (1) time (high) setting, 2nd motor *1 R/W Standard default acceleration, 2nd motor, range is 0.01 to 3000 sec.
B–26 ModBus Data Listing The following table lists the holding registers for the “A” Group Standard Functions. Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register Appendix B hex Range Res. dec. A001 Frequency source setting 1019h R/W Five options; select codes: 00... Keypad potentiometer 01... Control terminal 02... Function F001 setting 03... ModBus network input 10...
L2002 Inverter B–27 Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register hex dec. Range Res. R/W The ending point (offset) for the active analog input range, range is 0. to 100. 1024h 04132 0 to 100 1% A015 O–L input start frequency enable R/W Two options; select codes: 00... Use offset (A011 value) 01...
B–28 ModBus Data Listing Holding Registers for “A” Group Standard Functions Network Data Appendix B Func. Code Name R/W Description Register hex dec. Range Res. A039 Jog stop mode R/W Define how end of jog stops the motor; three options: 00... Free-run stop 01... Controlled deceleration 02... DC braking to stop 1049h 04169 0, 1, 2 — A041 Torque boost select R/W Two options: 00... Manual torque boost R/W 01...
L2002 Inverter B–29 Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register hex dec. Range Res. R/W Two options; select codes: 00... Edge detection 01... Level detection 1056h 04182 0, 1 — A061 Frequency upper limit setting R/W Sets a limit on output frequency less than the maximum frequency (A004). R/W Range is from frequency lower limit (A062) to maximum frequency (A004). 0.0.. setting is disabled >0.1 setting is enabled 105Ah 04186 0.
B–30 ModBus Data Listing Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register Appendix B hex Range Res. dec. A076 PV source setting 106Dh R/W Selects source of Process Variable (PV), option codes: 00... [OI] terminal (current in) 01... [O] terminal (voltage in) 02... Network 03... Calculate function output 04205 0, 1, 2, 3 — A077 Reverse PID action R/W Two option codes: 00... PID input = SP – PV 01...
L2002 Inverter B–31 Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register Res. 1 to 300000 *1 0.1 sec 1 to 300000 *1 0.1 sec 0, 1 — 0 to 4000 0.1 Hz 0 to 4000 0.1 Hz 04221 0, 1 — 107Eh 04222 0, 1 — R/W The output frequency corresponding to the current input range starting point. Range is 0.00 to 400.0 Hz 1080h 04224 0 to 4000 0.1 Hz R/W The output frequency corresponding to the current input range ending point. Range is 0.
B–32 ModBus Data Listing Holding Registers for “A” Group Standard Functions Network Data Appendix B Func. Code Name R/W Description Register hex dec. Range Res. A103 [OI]–[L] input active range start current R/W The starting point for the current input range. Range is 0. to 100.% 1083h 04227 0 to 100 1% A104 [OI]–[L] input active range end current R/W The ending point for the current input range. Range is 0. to 100.
L2002 Inverter B–33 Holding Registers for “A” Group Standard Functions Network Data Func. Code Name R/W Description Register hex dec. Range Res. R/W The output frequency corresponding to the potentiometer range ending point, range is 0.0 to 400.0 1097h 4247 0 to 4000 0.1 Hz A153 Pot. input active range start current R/W The output frequency corresponding to the potentiometer range starting point, range is 0 to 100 1098h 4248 0 to 100 1% A154 Pot.
B–34 ModBus Data Listing The following table lists the holding registers for the “B” Group Fine Tuning Functions. “B” Group Fine Tuning Functions Network Data Func. Code Name R/W Description Register Range hex Res. dec. R/W Select inverter restart method, four option codes: 00... Alarm output after trip, no automatic restart 01... Restart at 0Hz 02... Resume operation after frequency matching 03... Resume previous freq. after freq. matching, then decelerate to stop and display trip info.
L2002 Inverter B–35 “B” Group Fine Tuning Functions Network Data Func. Code Name R/W Description Register hex Range Res. dec. R/W Select the operating mode during overload conditions, three options, option codes: 00... Disabled 01... Enabled for acceleration and constant speed 02...
B–36 ModBus Data Listing “B” Group Fine Tuning Functions Network Data Func. Code Name R/W Description Register Appendix B hex Range Res. dec. B083 Carrier frequency setting R/W Sets the PWM carrier (internal switching frequency), range is 2.0 to 14.0 kHz 10D2h 04306 20 to 140 0.1 Hz B084 Initialization mode (parameters or trip history) R/W Select the type of initialization to occur, two option codes: 00... Trip history clear 01... Parameter initialization 02...
L2002 Inverter B–37 “B” Group Fine Tuning Functions Network Data Func. Code Name R/W Description Register hex Range Res. 1 to 7 — dec. R/W Selects the parameter displayed on the keypad display when the inverter is networked, 7 options: 01... Output frequency monitor 02... Output current monitor 03... Rotation direction monitor 04... Process variable (PV), PID feedback monitor 05... Intelligent input terminal status 06... Intelligent output terminal status 07...
B–38 ModBus Data Listing “B” Group Fine Tuning Functions Network Data Func. Code Name R/W Appendix B B151 Quick-start enable Note 1: Description R/W Enables inverter output for constant ON operation to speed up response, two option codes: 00... Disable 01... Enable Register hex dec. 10F9 4345 Range Res. 0, 1 — Assume that the inverter current rating is 10000 (for B013/B213).
L2002 Inverter B–39 The following table lists the holding registers for the “C” Group Intelligent Input Functions.I “C” Group Intelligent Terminal Functions Network Data Func.
B–40 ModBus Data Listing “C” Group Intelligent Terminal Functions Network Data Func. Code Name R/W Description Register Appendix B hex Range Res. 0 to 20000 0.01 % dec. C041 Overload level setting R/W Sets the overload signal level between 0% and 200% (from 0 to two times the rated current of the inverter) 1124h 04388 C042 Frequency arrival setting for acceleration R/W Sets the frequency arrival setting threshold for the output frequency during acceleration, range is 0.0 to 400.
L2002 Inverter B–41 “C” Group Intelligent Terminal Functions Network Data Func. Code Name R/W Description Register Range hex Res. dec. 1141h 04417 0 to 2000 0.1 % C082 OI input span calibration R/W Scale factor between the external frequency command on terminals L – OI (current input) and the frequency output, range is 0.0 to 200.0% 1142h 04418 0 to 2000 0.1 % C085 Thermistor input tuning R/W Range is 0.0 to 200.0% 1144h 04420 0 to 2000 0.
B–42 ModBus Data Listing “C” Group Intelligent Terminal Functions Network Data Func. Code Name R/W Description Register Appendix B hex Range Res. 0, 1, 2 — dec. C143 Logic function select R/W Applies a logic function to calculate [LOG] output state, three options: 00 ... [LOG] = A AND B 01 ...[LOG] = A OR B 02 ...[LOG] = A XOR B 1152h 04434 C144 Terminal [11] ON delay R/W Range is 0.0 to 100.0 sec. 1153h 04435 0 to 1000 0.1 sec C145 Terminal [11] OFF delay R/W Range is 0.0 to 100.
L2002 Inverter B–43 The following table lists the holding registers for the “H” Group Motor Constants. “H” Group Motor Constants Network Data Func. Code Name R/W Description Register Range Res. 1165h 04453 0 to 12 — 1540h 05440 0 to 12 — hex H003 Motor capacity H203 Motor capacity, 2nd setting Appendix B R/W Thirteen selections: 0 .....0.20 kW R/W 1 .....0.37 kW 2 .....0.40 kW 3 .....0.55 kW 4 .....0.75 kW 5 .....1.10 kW 6 .....1.50 kW 7 .....2.2 kW 8 .....3.0 kW 9 .....3.7 kW 10 ...4.
Drive Parameter Settings Tables In This Appendix.... C page — Introduction ..................................................... 2 — Parameter Settings for Keypad Entry..............
C–2 Introduction Introduction This appendix lists the user-programmable parameters for the L2002 series inverters and the default values for European and U.S. product types. The right-most column of the tables is blank, so you can record values you have changed from the default. This involves just a few parameters for most applications. This appendix presents the parameters in a format oriented toward the keypad on the inverter.
L2002 Inverter C–3 Standard Functions “A” Group Parameters Func. Code Name Default Setting -FE(F) (EU) -FU (USA) Frequency source setting 01 00 A201 Frequency source setting, 2nd motor 01 00 A002 Run command source setting 01 02 A202 Run command source setting, 2nd motor 01 02 A003 Base frequency setting 50.0 60.0 A203 Base frequency setting, 2nd motor 50.0 60.0 A004 Maximum frequency setting 50.0 60.0 A204 Maximum frequency setting, 2nd motor 50.0 60.
C–4 Parameter Settings for Keypad Entry “A” Group Parameters Appendix C Func. Code Name Default Setting -FE(F) (EU) -FU (USA) A028 Multi-speed 8 setting 0.0 0.0 A029 Multi-speed 9 setting 0.0 0.0 A030 Multi-speed 10 setting 0.0 0.0 A031 Multi-speed 11 setting 0.0 0.0 A032 Multi-speed 12 setting 0.0 0.0 A033 Multi-speed 13 setting 0.0 0.0 A034 Multi-speed 14 setting 0.0 0.0 A035 Multi-speed 15 setting 0.0 0.0 A038 Jog frequency setting 1.00 1.
L2002 Inverter “A” Group Parameters Func. Code Name C–5 Default Setting -FE(F) (EU) -FU (USA) Frequency lower limit setting 0.0 0.0 A262 Frequency lower limit setting, 2nd motor 0.0 0.0 A063, A065, A067 Jump (center) frequency setting 0.0 0.0 A064, A066, A068 Jump (hysteresis) frequency width setting 0.5 0.5 A071 PID Enable 00 00 A072 PID proportional gain 1.0 1.0 A073 PID integral time constant 1.0 1.0 A074 PID derivative time constant 0.0 0.
C–6 Parameter Settings for Keypad Entry “A” Group Parameters Appendix C Func. Code Name Default Setting -FE(F) (EU) -FU (USA) A296 Dec1 to Dec2 frequency transition point, 2nd motor 0.0 0.0 A097 Acceleration curve selection 00 00 A098 Deceleration curve selection 00 00 A101 [OI]–[L] input active range start frequency 0.0 0.0 A102 [OI]–[L] input active range end frequency 0.0 0.0 A103 [OI]–[L] input active range start current 0.0 0.
L2002 Inverter C–7 Fine Tuning Functions “B” Group Parameters Func. Code Name Default Setting -FE(F) (EU) -FU (USA) Selection of automatic restart mode 00 00 B002 Allowable under-voltage power failure time 1.0 1.0 B003 Retry wait time before motor restart 1.0 1.
C–8 Parameter Settings for Keypad Entry “B” Group Parameters Appendix C Func. Code Name Default Setting -FE(F) (EU) -FU (USA) B228 Overload restriction source selection, 2nd motor 00 00 B031 Software lock mode selection 01 01 B080 [AM] analog signal gain 100. 100. B082 Start frequency adjustment 0.5 0.5 B083 Carrier frequency setting 5.0 5.
L2002 Inverter C–9 Intelligent Terminal Functions “C” Group Parameters Func.
C–10 Parameter Settings for Keypad Entry “C” Group Parameters Appendix C Func. Code Name Default Setting -FE(F) (EU) -FU (USA) 3.0 3.0 C044 PID deviation level setting C052 PID FBV function high limit 100.0 100.0 C053 PID FBV function low limit 0.0 0.0 C071 Communication speed selection 06 04 C072 Node allocation 1. 1.
L2002 Inverter C–11 Motor Constants Functions “H” Group Parameters Func.
C–12 Parameter Settings for Keypad Entry Expansion Card Functions “P” Group Parameters Appendix C Func. Code Name Default Setting -FE(F) (EU) -FU (USA) P044 Network comm watchdog timer 1.00 1.
CE–EMC Installation Guidelines In This Appendix.... D page — CE–EMC Installation Guidelines ..................... 2 — Hitachi EMC Recommendations .....................
D–2 CE–EMC Installation Guidelines CE–EMC Installation Guidelines You are required to satisfy the EMC directive (89/336/EEC) when using an L2002 inverter in an EU country. To satisfy the EMC directive and to comply with standard, follow the guidelines in this section. 1. As user you must ensure that the HF (high frequency) impedance between adjustable frequency inverter, filter, and ground is as small as possible.
L2002 Inverter D–3 4. Take measures to minimize interference that is frequently coupled in through installation cables. • Separate interfering cables with 0.25m minimum from cables susceptible to interference. A particularly critical point is laying parallel cables over longer distances. If two cables intersect (one crosses over the other), the interference is smallest if they intersect at an angle of 90°.
D–4 CE–EMC Installation Guidelines Some L2002 inverters designed for use in Europe (–xxxLFEF/xxxHFEF models) have built-in line filters. Inverter models –xxxLFE/xxxHFE do not have built-in line filters. In the event your application needs additional filtering, the following diagrams show control panel mounting and wiring examples for different filter types.
L2002 Inverter D–5 L2002 inverter with book-type filter Appendix D L3 L1 L2 PE M 3~
D–6 Hitachi EMC Recommendations Hitachi EMC Recommendations WARNING: This equipment should be installed, adjusted, and serviced by qualified personal familiar with construction and operation of the equipment and the hazards involved. Failure to observe this precaution could result in bodily injury. Use the following checklist to ensure the inverter is within proper operating ranges and conditions. 1.
Index A A Group functions 3–10 AC reactors 5–3 Acceleration 1–22, 3–9 characteristic curves 3–28 second function 3–26 two-stage 4–18 Access levels 3–5, 3–39, 4–22 Accessories 5–2 ADD frequency 3–31 enable input 4–32 Alarm signal 4–36, 4–43 Algorithms, torque control 3–5, 3–63 Ambient temperature 2–10, A–2 Analog inputs calibration settings 3–59 current/voltage select 4–23 disconnect detect 4–45 operation 4–53 settings 3–14, 3–29 wiring examples 4–53 Analog outputs configuration 3–56 operation 4–55 Arrival
Index–2 Choke 2–7, 5–4, A–2 Chopper frequency 3–41 Circuit breaker sizes xiv, 2–17 Clearance for ventilation 2–10 Coasting 3–42 Connectors logic terminals 2–4 removal 2–4 serial port B–3 Constant torque 3–18 Constant volts/hertz operation 1–19 Contact information xviii Control algorithms 3–18 Copy unit 1–3, 3–2 Cover removal 2–3 Current input 3–14 Current overload 2–30, 3–37 Current/voltage analog input select 4–23 D D Group parameters 3–6 DC braking 3–21, 4–15, 4–16, A–3 Deadband A–3 Deceleration 1–22, 3–
L2002 Inverter G Glossary of terms A–2 H H Group parameters 3–63 Harmonics A–4 History of trip events 3–7 Horsepower A–4 I IGBT 1–18, A–4 test method 6–15 Index of terminal functions 4–7 Inertia A–4 Initialization 6–8 codes 3–41 Input circuits 4–4, 4–9 Inspection electrical measurements 6–12 IGBT test method 6–15 measurement techniques 6–14 procedures 6–9 unpacking 2–2 Installation instructions 2–8 Instantaneous power failure alarm 3–34 Insulation test 6–10 Integral gain 3–24 Intelligent input terminals
Index–4 N Nameplate 1–4 Navigational map 2–26, 3–4 trip events 6–7 NEC A–5 NEMA definition A–5 rated installation 1–3 Network communications 1–23, B–2 detection signal 4–49, 4–52 error code 6–6 local monitoring 3–8 ModBus data listing B–19 parameter settings B–5 protocol reference B–6 termination resistor B–4 Noise filters 5–2 AC reactor 2–7 O OPE/485 serial port configuration 2–5, B–4 Open-collector outputs 4–35, A–5 Operational modes 3–5 Operator interfaces 1–3 Option card detection signal 4–52 Optional
L2002 Inverter R Ratings label 1–4 Reactance A–6 Read/write copy unit 1–3 Ready input 4–34 Rectifier A–6 Reduced torque 3–18 Regenerative braking A–6 Regulation A–6 Regulatory agency approvals 1–4 Relay alarm signal contacts 4–43 as intelligent output 4–36 Remote control 4–29 Reset function 3–60, 4–24 Restart Mode configuration 3–42 Reverse run command 4–12 Reverse torque A–6 Revision history xvii RF noise filter 5–4 RJ-45 modular connector B–3 Rotor A–6 RPM 2–33 Run command 4–12 Run command source setting
Index–6 T Tachometer A–7 Technical support xviii Term definitions A–2 Terminal/program source configuration 2–5, 2–27, 3–11 Terminals arrangement 2–19 listing 4–7 torque specs xiii, 2–18 Termination resistor, network B–4 Thermal protection inverter, error code 6–6 motor 4–25 Thermal switch A–7 Thermistor definition A–7 error code 6–6 input terminal 4–25 input tuning 3–59 Three-phase power definition A–7 motor phase connections 1–19 wiring precautions 2–20 Three-wire interface operation 4–26 Torque 1–19, A–8
