MAKING MODERN LIVING POSSIBLE Operating Instructions VLTp Soft Starter - MCD500
Contents MCD 500 Operating Instruction Contents 1 Safety 5 1.1 Safety 5 2 Introduction 6 2.1.1 Feature List 6 2.1.2 Type Code 7 3 Installation 8 3.1 Mechanical Installation 8 3.2 Dimensions and Weights 9 4 Electrical Installation 10 4.1.1 Control Wiring 10 4.1.2 Control Terminals 10 4.1.3 Remote Inputs 11 4.1.4 Serial Communication 11 4.1.5 Earth Terminal 11 4.1.6 Power Terminations 12 4.1.7 Motor Connection 13 4.2 In-Line Installation 13 4.2.
Contents MCD 500 Operating Instruction 4.9 Power Factor Correction 21 4.10 Fuses 22 4.10.2 Bussman Fuses - Square Body (170M) 23 4.10.3 Bussman Fuses - British Style (BS88) 23 4.10.4 Ferraz Fuses - HSJ 24 4.10.5 Ferraz Fuses - North American Style (PSC 690) 25 4.10.6 UL Tested Fuses - Short Circuit Ratings 26 4.11 Schematic Diagrams 27 4.11.1 Internally Bypassed Models 27 4.11.2 Non-bypassed Models 28 5 Application Examples 5.1 Motor Overload Protection 29 5.
Contents MCD 500 Operating Instruction 6.4.2 Programmable Screen (S2) 44 6.4.3 Average Current (S3) 44 6.4.4 Current Monitoring Screen (S4) 44 6.4.5 Frequency Monitoring Screen (S5) 44 6.4.6 Motor Power Screen (S6) 44 6.4.7 Last Start Information (S7) 44 6.4.8 Date and Time (S8) 45 6.4.9 SCR Conduction Bargraph 45 6.4.10 Performance Graphs 45 7 Programming 46 7.1 Access Control 46 7.2 Quick Menu 47 7.2.1 Quick Setup 47 7.2.2 Application Setups 48 7.2.3 Loggings 49 7.
Contents MCD 500 Operating Instruction 7.12 Restricted Parameters 60 7.13 Protection Action 61 7.14 Factory Parameters 61 8 Tools 62 8.1 Set Date and Time 62 8.2 Load/Save Settings 62 8.3 Reset Thermal Model 62 8.4 Protection Simulation 62 8.5 Output Signal Simulation 63 8.6 Digital I/O State 63 8.7 Temp Sensors State 63 8.8 Alarm Log 63 8.8.1 Trip Log 63 8.8.2 Event Log 64 8.8.3 Counters 64 9 Troubleshooting 65 9.1 Trip Messages 65 9.
Safety MCD 500 Operating Instruction 1 1 1 Safety CAUTION 1.1 Safety When reading this manual you will come across different symbols that require special attention. The symbols used are the following: NOTE Indicates something to be noted by the reader These stop functions are not sufficient to avoid unintended start. A motor that has been stopped may start if faults occur in the electronics of the soft starter, or a temporary fault in the supply mains or the motor connection ceases.
2 2 Introduction MCD 500 Operating Instruction 2 Introduction The MCD 500 is an advanced digital soft start solution for motors from 7 kW to 800 kW. MCD 500 soft starters provide a complete range of motor and system protection features and have been designed for reliable performance in the most demanding installation situations. 2.1.
Introduction MCD 500 Operating Instruction 2.1.
3 3 Installation MCD 500 Operating Instruction 3 Installation 3.1 Mechanical Installation 8 1 MCD5-0021B - MCD5-0245C: Allow 100 mm (3.94 inches) between soft starters. MCD5-0360C - MCD5-1600C: Allow 200 mm (7.88 inches) between soft starters. 2 MCD5-0021B - MCD5-0215B: Allow 50 mm (1.97 inches) between the soft starter and solid surfaces. MCD5-0245C: Allow 100 mm (3.94 inches) between the soft starter and solid surfaces. MCD5-0360C - MCD5-1600C: Allow 200 mm (7.
Installation MCD 500 Operating Instruction 3.2 Dimensions and Weights 177HA514.10 3 3 Model A mm B mm C mm D mm E mm (inches) (inches) (inches) (inches) (inches) Weight kg (lbs) 183 (7.2) 4.2 (9.3) MCD5-0021B MCD5-0037B MCD5-0043B MCD5-0053B MCD5-0068B 295 (11.6) 278 (10.9) 150 (5.9) 124 (4.9) 213 (8.
4 4 Electrical Installation MCD 500 Operating Instruction 4 Electrical Installation 4.1 Electrical Installation 4.1.1 Control Wiring The soft starter can be controlled in three ways: • • • using the buttons on the LCP via remote inputs via a serial communication link The MCD 500 will always respond to a local start or stop command (via the Hand On and Off buttons on the LCP). Pressing the Auto On button selects remote control (the MCD 500 will accept commands from the remote inputs).
Electrical Installation MCD 500 Operating Instruction 4.1.3 Remote Inputs The MCD 500 has three fixed inputs for remote control. These inputs should be controlled by contacts rated for low voltage, low current operation (gold flash or similar). Reset 1 2 3 15 16 17 18 25 18 Start Stop Reset 15 16 17 18 25 18 Start Stop Reset 15 16 17 18 25 18 4 4 177HA504.10 Start/stop 3 2 1 Two-wire control Three-wire control Four-wire control The reset input can be normally open or normally closed.
MCD 500 Operating Instruction 4.1.6 Power Terminations Use only copper stranded or solid conductors, rated for 75r C. NOTE Some units are aluminium bus bars. When connecting power terminations, we recommend cleaning the surface contact area thoroughly (using an emery or stainless steel brush) and using an appropriate jointing compound to prevent corrosion.
Electrical Installation MCD 500 Operating Instruction NOTE 4.1.7 Motor Connection MCD 500 soft starters can be connected to the motor in-line or inside delta (also called three-wire and six-wire connection). The MCD 500 will automatically detect the motor connection and perform the necessary calculations internally, so it is only necessary to program the motor full load current (par. 1-1). For personnel safety, the power terminals on models up to MCD5-0105B are protected by snap-off tabs.
Electrical Installation MCD 500 Operating Instruction 4.2.3 In-line Installation, Externally Bypassed Non-bypassed models have dedicated bypass terminals, which allow the soft starter to continue providing protection and monitoring functions even when bypassed via external contactor. The bypass contactor must be connected to the bypass terminals and controlled by a programmable output configured to Run (see par. 4.1 - 4.9).
Electrical Installation MCD 500 Operating Instruction 4.3.1 Inside Delta Installation, Internally Bypassed 4 4 KM1 F1 Main contactor Fuses (optional) 4.3.2 Inside Delta Installation, Non-bypassed KM1 F1 1/L1 2/T1 U1(1) U2(4) L1B 3/L2 4/T2 V1(2) M V2(5) 3 L2B 5/L3 W1(3) W2(6) 6/T3 L3B E 177HA500.11 13 KM1 Main contactor F1 Fuses (optional) 14 KM1 MG.17.K3.
Electrical Installation MCD 500 Operating Instruction 4.3.3 Inside Delta Installation, Externally Bypassed Non-bypassed models have dedicated bypass terminals, which allow the MCD 500 to continue providing protection and monitoring functions even when bypassed via an external bypass contactor. The bypass relay must be connected to the bypass terminals and controlled by a programmable output configured to Run (see par. 4-1 - 4-9).
Electrical Installation MCD 500 Operating Instruction 4.4.1 In-line Connection (Bypassed) NOTE Models MCD5-0021B - MCD5-0215B are internally bypassed. Models MCD5-0245C - MCD5-1600C require an external bypass contactor. AC-53b AC-53b AC-53b 3-30:330 4-20:340 4.5-30:330 MCD5-0021B 21 A 17 A 15 A MCD5-0037B MCD5-0043B 37 A 43 A 31 A 37 A 26 A 30 A MCD5-0053B 53 A 46 A 37 A AC-53b 3-30:570 AC-53b 4-20:580 AC-53b 4.
Electrical Installation MCD 500 Operating Instruction 4.4.3 In-line Connection (Non-bypassed/Continuous) 4 4 AC-53a AC-53a AC-53a 3-30:50-6 4-20:50-6 4.
Electrical Installation MCD 500 Operating Instruction 4.4.5 Inside Delta Connection (Bypassed) NOTE Models MCD5-0021B a MCD5-0215B are internally bypassed. Models MCD5-0245C a MCD5-1600C require an external bypass contactor. AC-53b AC-53b AC-53b 3-30:330 4.20-:340 4.5-30:330 MCD5-0021B 32 A 26 A 22 A MCD5-0037B MCD5-0043B 56 A 65 A 47 A 56 A 39 A 45 A MCD5-0053B 80 A 69 A 55 A AC-53b 3-30:570 AC-53b 4-20:580 AC-53b 4.
Electrical Installation MCD 500 Operating Instruction 4.4.7 Inside Delta Connection (Non-bypassed/Continuous) 4 4 AC-53a AC-53a AC-53a 3-30:50-6 4-20:50-6 4.
Electrical Installation MCD 500 Operating Instruction 4.
4 4 Electrical Installation MCD 500 Operating Instruction CAUTION Power factor correction capacitors must be connected to the input side of the soft starter. Connecting power factor correction capacitors to the output side will damage the soft starter. 4.10 Fuses 4.10.1 Power Supply Fuses Semiconductor fuses can be used for Type 2 coordination (according to IEC 60947-4-2 standard) and to reduce the risk of damage to SCRs from transient overload currents.
Electrical Installation MCD 500 Operating Instruction 4.10.
Electrical Installation MCD 500 Operating Instruction * Two parallel connected fuses required per phase. 4.10.
Electrical Installation MCD 500 Operating Instruction 4.10.
4 4 Electrical Installation MCD 500 Operating Instruction 4.10.
Electrical Installation MCD 500 Operating Instruction 4.11 Schematic Diagrams 4.11.
Electrical Installation MCD 500 Operating Instruction 4.11.
Application Examples MCD 500 Operating Instruction 5 Application Examples • The memory function of the model means that the motor is fully protected in “warm start” situations. The model uses data from the real time clock to account for elapsed cooling time, even if control power has been removed. 5.1 Motor Overload Protection The thermal model used for motor overload in the MCD 500 has two components: Motor Body: This has a large thermal capacity and affects the long term behaviour of the motor.
MCD 500 Operating Instruction zero speed and at maximum speed. During each subsequent start and stop, the starter dynamically adjusts its control to ensure the motor's actual performance matches the selected profile throughout the start. The starter increases power to the motor if the actual speed is too low for the profile, or decreases power if the speed is too high. pump where pipeline pressure needs to build up slowly).
Application Examples MCD 500 Operating Instruction NOTE 5.4.2 TVR Soft Stop AAC Adaptive Acceleration Control will control the load according to the programmed profile. Start current will vary according to the selected acceleration profile and the programmed start time.
5 5 Application Examples MCD 500 Operating Instruction 100% 4 100% 90% 80% 70% 1 60% 2 3 3 Speed Speed 70% 50% 40% 30% 30% 177HA510.10 20% 10% 0 Time 0% 1 1. Early deceleration 2 177HA511.10 Time 2. Constant deceleration 3. Late deceleration 1: Stop time (Par. 1-11) 4. Stop time (Par. 1-10) 2: Brake time (Par. 1-16) Table 5.2 AAC Adaptive Stop Profile (Par.
Application Examples MCD 500 Operating Instruction The maximum available torque for jog is approximately 50% - 75% of motor full load torque (FLT) depending on the motor. Available jog torque in reverse is approximately 50% 75% of the jog torque in forward direction. To set the jog torque level, use Par. 15-8. NOTE Setting Par. 15-8 above 50% may cause increased shaft vibration.
5 5 Application Examples MCD 500 Operating Instruction Application Typical Start Current General & Water Agitator 4.0 x FLC Centrifugal pump Compressor (Screw, unloaded) 3.5 x FLC 3.0 x FLC Compressor (Reciprocating, unloaded) 4.0 x FLC Conveyor 4.0 x FLC Fan (damped) 3.5 x FLC Fan (undamped) Mixer 4.5 x FLC 4.5 x FLC Positive displacement pump 4.0 x FLC Submersible pump 3.
Application Examples MCD 500 Operating Instruction 5.8 Installation with Main Contactor The MCD 500 is installed with a main contactor (AC3 rated). Control voltage must be supplied from the input side of the contactor. The main contactor is controlled by the MCD 500 Main Contactor output, which by default is assigned to Output Relay A (terminals 13, 14).
Application Examples MCD 500 Operating Instruction 5.9 Installation with Bypass Contactor The MCD 500 is installed with a bypass contactor (AC1 rated). The bypass contactor is controlled by the MCD 500 Run Output which by default is assigned to Output Relay B (terminals 21, 22, 24). KM1 5 5 F1 1/L1 2/T1 L1B 6 3/L2 7 4/T2 L2B 5/L3 6/T3 L3B E A4 13 A5 14 1 21 A6 07 A 5 + 24 08 16 S1 15 S2 17 2 24 VDC 11 22 KM1 33 34 + 3 18 S3 25 4 06 177HA523.
Application Examples MCD 500 Operating Instruction 5.10 Emergency Run Operation In normal operation the MCD 500 is controlled via a remote two wire signal (terminals 17, 18). Emergency Run is controlled by a two wire circuit connected to Input A (terminals 11, 16). Closing Input A causes the MCD 500 to run the motor and ignore all trip conditions.
Application Examples MCD 500 Operating Instruction 5.11 Auxiliary Trip Circuit In normal operation the MCD 500 is controlled via a remote two wire signal (terminals 17, 18). Input A (terminals 11, 16) is connected to an external trip circuit (such as a low pressure alarm switch for a pumping system). When the external circuit activates, the soft starter trips, which stops the motor.
Application Examples MCD 500 Operating Instruction 5.12 Soft Braking For high inertia loads the MCD 500 can be configured for soft braking. In this application the MCD 500 is employed with forward run and braking contactors. When MCD 500 receives a start signal (button S1), it closes the forward run contactor (KM1) and controls the motor according to the programmed primary motor settings.
MCD 500 Operating Instruction NOTE If the MCD-500 trips on supply frequency (Par. 16-5 Frequency) when the braking contactor KM2 opens, modify the setting of Pars. 2-8 - 2-10. 5.13 Two Speed Motor The MCD 500 can be configured for control of dual speed Dahlander type motors, using a high speed contactor (KM1), low speed contactor (KM2) and a star contactor (KM3).
Application Examples MCD 500 Operating Instruction NOTE Contactors KM2 and KM3 must be mechanically interlocked. Parameter settings: • Par. 3-3 Input A Function • • • • Select Motor Set Select - assigns Input A for Motor set selection Set high speed performance characteristics using par. 1-1 - 2-9 Set low speed performance characteristics using par. 7-1 - 7-16. Par. 4-4 Relay B Function • Select Trip - assigns Trip function to Relay Output B 5 5 NOTE If the MCD 500 trips on supply frequency (Par.
Operation MCD 500 Operating Instruction 6 Operation 6.1 Operation and LCP 6.1.1 Operating Modes In Hand On mode: 6 6 • To soft start the motor, press [H HAND ON] on the LCP • • To stop the motor, press [O OFF] on the LCP • To emergency stop the motor, press the local [O OFF] and [R RESET] buttons at the same time. The soft starter will remove power from the motor and open the main contactor, and the motor will coast to stop. Emergency stop can also be controlled via a programmable input.
Operation MCD 500 Operating Instruction 1 Four-line display for status and programming details.
6 6 Operation MCD 500 Operating Instruction 6.4 Displays 6.4.3 Average Current (S3) The LCP displays a wide range of performance information about the soft starter. Press the STATUS button to access the status display screens, then use the Ⴃ and Ⴍ buttons to select the information to display. To return to the status screens from within a menu, press the BACK button repeatedly or press the STATUS button. The average current screen shows the average current of all three phases.
Operation MCD 500 Operating Instruction 6.4.8 Date and Time (S8) The date/time screen shows the current system date and time (24 hour format). For details on setting the date and time, seeSet Date and Time. Ready S8 MS1 000.0A 000.0kW YYYY MMM DD HH:MM:SS 6.4.9 SCR Conduction Bargraph The SCR conduction bargraph shows the level of conduction on each phase. 177HA513.10 6 6 6.4.
7 7 Programming MCD 500 Operating Instruction 7 Programming You can access the programming menus at any time, including while the soft starter is running. All changes take effect immediately. 7.1 Access Control Critical parameters (parameter group 15 and higher) are protected by a four-digit security access code, preventing unauthorised users from viewing or modifying parameter settings. When a user attempts to enter a restricted parameter group, the LCP prompts for an access code.
Programming MCD 500 Operating Instruction 7.2 Quick Menu 7.2.1 Quick Setup Quick setup provides access to commonly used parameters, allowing the user to configure the MCD 500 as required for the application. For details of individual parameters, see Parameter Descriptions.
7 7 Programming MCD 500 Operating Instruction 7.2.2 Application Setups The application setups menu makes it easy to configure the MCD 500 for common applications. The MCD 500 selects the parameters relevant to the application and suggests a typical setting, and you can adjust each parameter to suit your exact requirements. On the display the highlighted values are suggested values and the values indicated by a Ⴇ are the loaded values. Always set par.
Programming MCD 500 Operating Instruction 7.2.3 Loggings • to return to the previous level, press the BACK button. The Loggings menu allows the user to view performance information in real-time graphs. • to close Parameters, press the BACK button. • • • • • Current (%FLC) Motor Temp (%) Motor kW (%) To change a parameter value: • scroll to the appropriate parameter and press OK to enter edit mode. • to alter the parameter setting, use the Ⴃ and Ⴍ buttons. • to save changes, press OK.
7 7 Programming MCD 500 Operating Instruction 7.3.
Programming MCD 500 Operating Instruction 7.4 Primary Motor Settings 1-6 Start Ramp Time Range: NOTE 10 secs* Function: [1 - 180 Default settings are marked with . Sets the total start time for an AAC secs] Adaptive Control start or the ramp time for current ramp starting (from the initial The parameters in Primary Motors Settings configure the soft starter to match the connected motor.
Programming MCD 500 Operating Instruction 1-11 Stop Time 1-15 Brake Torque Range: Function: 0 secs* [0:00 - 4:00 (min:secs)] Range: Sets the time for soft stopping the motor using timed voltage ramp or Adaptive Control (AAC). If a main contactor is installed, the contactor must remain closed until the end of the stop time. Use a programmable output configured to Run 20%* Function: [20 - 100%] Sets the amount of brake torque the MCD 500 will use to slow the motor.
Programming MCD 500 Operating Instruction 2-4 Undercurrent 2-9 Frequency Variation Range: Option: 20%* Function: Function: [0% - Sets the trip point for undercurrent protection, s 5 Hz 100%] as a percentage of motor full load current. Set to a level between the motor's normal working s 10 Hz s 15 Hz range and the motor's magnetising (no load) current (typically 25% to 35% of full load current). A setting of 0% disables undercurrent protection.
Programming MCD 500 Operating Instruction 3-2 Comms in Remote 3-3 Input A Function Option: Option: Function: Function: Selects whether the starter will accept Start Jog Forward Activates jog operation in a forward direction (will and Stop commands from the serial communication network when in Remote Jog Reverse Activates jog operation in reverse direction (will operate only in Remote mode). operate only in Remote mode). mode.
Programming MCD 500 Operating Instruction 7.7 Outputs 4-4 Relay B Function Option: 4-1 Relay A Function Function: Low Current The relay closes when the low current flag Flag activates (Par. 4-10 Low Current Flag). Selects the function of Relay A (normally open). High Current The relay closes when the high current flag Off Relay A is not used Flag activates (Par. 4-11 High Current Flag).
7 7 Programming MCD 500 Operating Instruction undercurrent or instantaneous overcurrent trip levels. The flags can signal the situation to external equipment via one of the programmable outputs. The flags clear when the current returns within the normal operating range by 10% of the programmed motor full load current. 4-13 Analog Output A Option: Function: í 9 í , )/& Motor pf Motor power factor, measured by the soft starter.
Programming MCD 500 Operating Instruction 5-4 Auto-Stop Time Range: 6-2 Maximum Resets Function: 1 min* [00:01 24:00 (hrs:min)] Range: Function: Sets the time for the soft starter to auto- decreases by one after each successful start/stop stop, in 24 hour clock format. cycle. CAUTION NOTE This function should not be used in conjunction with remote two-wire control. The soft starter will still accept start and stop commands from the remote inputs or serial communication network.
7 7 Programming MCD 500 Operating Instruction 7-5 Initial Current-2 7-11 Stop Time-2 Range: Range: Function: Function: [100% - Sets the initial start current level for current to control the main contactor. Sets the toal 600% FLC] ramp starting, as a percentage of motor full load current. Set so that the motor begins to stopping time when using brake. 350%* accelerate immediately after a start is 7-12 Adaptive Control Gain-2 Range: initiated.
Programming MCD 500 Operating Instruction 7.11 Display 8-3 User Screen - Top Right Option: 8-1 Language Motor Current Option: Function: Function: The average current measured on three phases. Selects which language the LCP will use Motor pf to display messages and feedback. English The motor's power factor, measured by the soft starter. Mains Frequency The average frequency measured on three Chinese (ЁϜ) phases. Spanish (Español) Motor kW The motor's running power in kilowatts.
7 7 Programming MCD 500 Operating Instruction 7.12 Restricted Parameters 8-5 User Screen - Bottom Right Option: Function: Mains Frequency The average frequency measured on three 15-1 Access Code Range: phases. Motor kW The motor's running power in kilowatts. Motor HP The motor's running power in horsepower. Motor Temp The motor's temperature, calculated by the 0000* Function: [0000 - Sets the access code to enter the simulation tools 9999] Programming Menu (parameter group 15 and higher).
Programming MCD 500 Operating Instruction 15-4 Current Calibration Range: 16-1 - 16-12 Protection Action Function: Option: &DOLEUDWLRQ H J Function: &XUUHQW VKRZQ RQ 0&' GLVSOD\ &XUUHQW PHDVXUHG E\ H[WHUQDO GHYLFH • • • • • • • • $ $ NOTE This adjustment affects all current-based functions.
8 8 Tools MCD 500 Operating Instruction 8 Tools To access Tools, open the Main Menu, scroll to Tools and press OK. When the action has been completed, the screen will briefly display a confirmation message, then return to the status screens. 8.1 Set Date and Time 8.3 Reset Thermal Model To set the date and time: NOTE 1. Open the Tools Menu. 2. Scroll to Set Date & Time. 3. Press the OK button to enter edit mode. 4. Press the OK button to select which part of the date or time to edit. 5.
Tools MCD 500 Operating Instruction To use the protection simulation: 1. Open the Main Menu. The LCP allows the user to simulate output signalling in order to confirm that the output relays are operating correctly. 2. Scroll to Protection Sim and press OK. 3. Use the Ⴃ and Ⴍ buttons to select the protection you want to simulate. 4. Press OK to simulate the selected protection. 5. The protection message is displayed while OK is pressed.
Tools MCD 500 Operating Instruction To open the Trip Log: 1. Open the Alarm Logs. 2. Scroll to Trip Log and press OK. 3. Use the Ⴃ and Ⴍ buttons to select a trip to view, and press OK to display details. To close the log and return to the main display, press BACK. 8.8.2 Event Log The Event Log stores time-stamped details of the starter's 99 most recent events (actions, warnings and trips), including the date and time of the event. Event 1 is the most recent and event 99 is the oldest stored event.
Troubleshooting MCD 500 Operating Instruction 9 Troubleshooting When a protection condition is detected, the MCD 500 will write this to the event log and may also trip or issue a warning. The soft starter's response to some protections may depend on the Protection Action settings (parameter group 16). If the MCD 500 trips you will need to reset the soft starter before restarting. If the MCD 500 has issued a warning, the soft starter will reset itself once the cause of the warning has been resolved.
9 9 Troubleshooting Display Heatsink Overtemp MCD 500 Operating Instruction Possible cause/Suggested solution Check if cooling fans are operating. If mounted in an enclosure, check if ventilation is adequate. Fans operate during Start, Run and for 10 minutes after the starter exits the Stop state. NOTE Models MCD5-0021B to MCD4-0053B and MCD5-0141B do not have a cooling fan. Models without internal bypass will operate the cooling fans from a Start until 10 minutes after a Stop. Related Pars.
Troubleshooting MCD 500 Operating Instruction Display Possible cause/Suggested solution Motor Thermistor The motor thermistor input has been enabled and: - The resistance at the thermistor input has exceeded 3.6 k˖ for more than one second. - The motor winding has overheated. Identify the cause of the overheating and allow the motor to cool before restarting. - The motor thermistor input has been open. NOTE If a valid motor thermistor is no longer used, a 1.
Troubleshooting MCD 500 Operating Instruction 9.2 General Faults This table describes situations where the soft starter does not operate as expected but does not trip or give a warning. Symptom Soft starter does not respond to commands. Probable Cause - If the soft starter does not respond to the RESET button on the LCP: The soft starter may be in Auto On mode and will only accept commands from the remote control inputs. In Auto On mode, the Auto On LED on the LCP is active.
Troubleshooting MCD 500 Operating Instruction Symptom Probable Cause AAC adaptive acceleration control, DC brake and Jog functions not working - These features are only available with in-line installation. If the MCD 500 is installed inside delta, these features will not operate. A reset does not occur after an Auto-Reset, when using a remote 2-wire control. - The remote 2-wire start signal must be removed and reapplied for a re-start.
10 10 Specifications MCD 500 Operating Instruction 10 Specifications Supply Mains voltage (L1, L2, L3) MCD5-xxxx-T5 MCD5-xxxx-T7 MCD5-xxxx-T7 Control voltage (A4, A5, A6) CV1 (A5, A6) CV2 (A5, A6) CV2 (A4, A6) Current consumption (maximum) CV1 CV2 (110 - 120 VAC) CV2 (220 - 240 VAC) Mains frequency Rated insulation voltage to earth Rated impulse withstand voltage Form designation 200 VAC - 525 VAC (s 10%) 380 VAC - 600 VAC (s 10%) (inside delta connection) 380 VAC - 690 VAC (s 10%) (earthed star supply
Specifications MCD 500 Operating Instruction Storage temperature Operating Altitude Humidity Pollution degree - 25° C to + 60° C 0 - 1000 m, above 1000 m with derating 5% to 95% Relative Humidity Pollution Degree 3 Heat Dissipation During start During run MCD5-0021B - MCD5-0053B MCD5-0068B - MCD5-0105B MCD5-0131B - MCD5-0215B MCD5-0245C - MCD5-0927C MCD5-1200C - MCD5-1600C 4.5 watts per ampere = 39 watts = 51 watts = 120 watts 4.5 watts per ampere 4.
10 10 Specifications MCD 500 Operating Instruction 10.1.2 PC Software MCD PC Software can be used in conjunction with a communications module to provide the following functionality for networks of up to 99 soft starters.
Bus Bar Adjustment Procedur... MCD 500 Operating Instruction 11 Bus Bar Adjustment Procedure (MCD5-0360C - MCD5-1600C) NOTE Many electronic components are sensitive to static electricity. Voltages so low that they cannot be felt, seen or heard, can reduce the life, affect performance, or completely destroy sensitive electronic components. When performing service, proper ESD equipment should be used to prevent possible damage from occurring.
Bus Bar Adjustment Procedur... MCD 500 Operating Instruction 1. Remove all wiring and links from the soft starter before dismantling the unit. 2. Remove the unit cover (4 screws). 3. Unscrew the main plastic and fold away from the starter (4 screws). 4. Unplug the keypad loom from CON 1 (see note). 5. label each SCR firing loom with the number of the corresponding terminal on the main control PCB, then unplug the looms. 6. Unplug the thermistor, fan and CT wires from the main control PCB.
Bus Bar Adjustment Procedur... MCD 500 Operating Instruction NOTE If moving the input bars, the CTs must also be reconfigured. 1. Label the CTs L1, L2 and L3 (L1 is leftmost when working from the front of the starter). Remove the cable ties and unscrew the CTs from the bracket. 2. Move the CT bracket to the top of the starter. Position the CTs for the correct phases, then screw the CTs to the bracket.
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