EATON ETN1000 / ETN2000 Grid PV-Inverter Installation and Operation Manual Version 1.6 E 2010.
Before you start….................................................................................................... 3 Safety instructions ................................................................................................... 4 Limited Warranty..................................................................................................... 6 1. Overview......................................................................................................... 7 2. Features.................
Front Panel ............................................................................................. 20 LCD Display Sequence: ......................................................................... 22 Maximum Power Point Tracking (MPPT) ............................................... 22 Maximum Power Point Tracking (MPPT) ............................................... 23 6. Inverter Status..................................................................................................
Before you start… Congratulations on choosing EATON ETN1000 / ETN2000 Grid PV-Inverter, a product from EATON Grid PV-Inverter is a highly reliable product due to its innovative design and perfect quality control. Such an inverter is used in high demand, grid-linked PV systems. This manual contains important information regarding installation and safe operation of this unit. Be sure to read this manual carefully before using.
Safety instructions z Risk of Electric Shock 1. Do not remove the casing. Inverter contains no user serviceable parts. Refer servicing to qualified service personnel. Both AC and DC voltage sources are terminated inside the PV-Inverter. Please disconnect these circuits before servicing. 2. When a photovoltaic panel is exposed to light, it generates a DC voltage. When connected to this equipment, a photovoltaic panel will charge the DC link capacitors. 3.
z Hot surfaces Although designed to meet all safety requirements, some parts and surfaces of Inverter are still hot during operation. To reduce the risk of injury, do not touch the heat sink at the back of the PV-Inverter or nearby surfaces while Inverter is operating.
Limited Warranty Inverter comes with a limited warranty. This warranty includes all defects of design, components and manufacturing.
1. Overview 1.0 kW / 2.
2. Features z Very high conversion efficiency (up to 96%) z MPPT (Maximum Power Point Tracking) z Higher power capacity than similar products of the same size. z Embedded LCD display showing complete status information z Natural convection cooling. Quiet, fan-less design z Stylish, modern casing z Compact, small profile z High reliability, and Easy to install z Maintenance free z Standard RS-232, optional RS-485 and others z No external GFCI breaker is required Edition 1.
3. Installation instructions Opening the package After opening the package, please check the contents of the box. It should contain the following: 1. One Inverter 2. One Instruction manual 3. One mounting frame 4. 4 mounting screws 5. 2 safety-lock screws 6. One cable gland and TB cover for AC cable Before installation Before starting installation please consider the following items: This unit is designed for indoor usage. Do not expose the unit to wet, or moist conditions.
Inverter can be installed and operated at locations where the ambient temperature is up to 55°C. However, for optimal operation, it is recommended that Inverter is installed where the ambient temperature is between 0~40°C. Edition 1.
Mounting Inverter to the wall 1. Select a wall or solid vertical surface that can support the PV-Inverter. 2. Inverter requires adequate cooling space. Allow at least 20cm space above and below the inverter. 3. Using the mounting frame as a template, drill 4 holes as illustrated in the following figures. 4. Fix the mounting frame as the figure shows.
5. Hang the inverter on the mounting frame Select the installation location so that the status display can be easily viewed. Choose a strong mounting wall to prevent vibrations while inverter is operating. 6. Check the installation conditions a) Do not install the PV-Inverter on a slanted surface Edition 1.
b) Check the upper straps of PV-Inverter and ensure it fits on to the bracket c) Insert safety-lock screws to the bottom leg to secure the inverter Check the secure mounting of the PV-Inverter by trying to raise it from the bottom. The PV-Inverter should remain firmly attached.
Connecting to the grid (AC utility) 1. Measure grid (utility) voltage and frequency. It should be 230VAC (or 220VAC), 50/60Hz, and single phase. 2. Open the breaker or fuse between PV-Inverter and utility. 3. For Inverter, connect AC wires as follows: z Insert utility wires through cable gland. Connect wires according to polarities indicated on terminal block. L → LINE (brown), N → Neutral (blue) and → system ground (green). z Fasten the gland plate in order to make sure cable is firmly fixed.
z Twist the gland, attached screws in order to seal the AC gland cover. To prevent risk of electric shock, ensure the ground wire is properly earthed before operating the PV-Inverter. 4. Suggested cable width for AC wire. Model Diameter φ (mm) Area (mm2) AWG no. EATON ETN1000 EATON ETN2000 ≥1.02 ≥1.25 ≤16 Connect to PV Panel (DC input) 1. Make sure the maximum open circuit voltage (Voc) of each PV string is less than 500VDC UNDER ANY CONDITION.
10ADC in 2.0kW. Before connecting PV panels to DC terminals, please make sure the polarity is correct. Incorrect polarity connection could permanently damage the unit. Please check the short-circuit current of the PV string. The total short-circuit current of the PV string should be less than the inverter ’s maximum DC current. High voltages exist when the PV panel is exposed to the sun. To reduce risk of electric shock, avoid touching live components and treat connection terminals carefully. Checking 1.
4. System Diagram The typical connection diagram for the entire PV system is shown in the following figure. Utility + - PV panel Connection system 1. PV Panel: Provide DC power to inverter. 2. EATON ETN1000 / ETN2000 PV Inverter converts DC (Direct Current) power from PV panel(s) to AC (Alternating Current) power. Because Inverter is grid-connected it controls the current amplitude according to the PV Panel power supply. Inverter always tries to convert the maximum power from your PV panel(s). 3.
5. Operating Your PV-Inverter Modes of operation There are 3 different modes of operation. 1. Normal mode: In this mode, Inverter works normally. Whenever the supplied power from PV panel is sufficient (voltage>150VDC), Inverter converts power to the grid as generated by the PV panel. If the power is insufficient, (voltage<100VDC) Inverter enters a “waiting” state. Whilst “waiting” Inverter uses just enough power from the PV panel monitor internal system status. In normal mode the green LED is on. 2.
Front Panel arrangement Function Key LCD (Liquid Crystal Display) Power-on LED PPaacc= =xxxxxxxx..xxW W Fault LED LED There are 2 LED’s on Inverter, one is green and the other is red. Normally, only the green LED switches on during operation. Their indicated status is explained as follows: 1. Power on (green LED): It lights to indicate that Inverter is running. 2. Fault (red LED): Illuminates during a “fault” or “failure”.
Front Panel Operating Inverter is quite easy. During normal operation, Inverter runs automatically. However, to achieve maximum conversion efficiency of Inverter, please read through the following information: 1. Automatic ON-OFF: Inverter starts up automatically when DC-power from the PV panel is sufficient. Once the PV-Inverter starts it enters one of the following 3 states: z Standby: The PV string can only provide just enough voltage to minimum requirements of the controller.
Repeatedly press the function key until the desired display is reached. Release the key and press again for more than 2 second until you see “Lock”, release the key; the information remains on the display. To change the display again, please press the key as indicated in above section 3. Change display information. 5. LCD backlight control: To save power, the LCD display’s backlight automatically turns off after 10 seconds. To enable it, press the “Function” key again. 6.
LCD Display Sequence: Pac =xxxx.xW Feeding Model Model name Etoday=xxx.xxKWh Daily energy A1.00 FW version Eac=xxxxxxkWh Total energy Normal state Operating status Vdc=xxx.xV DC-PV voltage Contrast Contrast Adj. Iac= x.xA Feeding current Set language Set language Frequency=xx.xHz AC-Grid freq. Vac=xxx.xV AC-Grid voltage Edition 1.
Maximum Power Point Tracking (MPPT) A good PV inverter must be able to convert the maximum IPV (A) 5 125 800W/m2 power from any PV panel. Due to its advanced design, Inverter PPV (W) Maximum power point 2 @ 1000W/m ~ 120W 1000W/m 2 4 100 600W/m2 PV-Inverter can track the 3 75 maximum power from your PV 2 50 panel in any condition.
6. Inverter Status Inverter is designed to be user-friendly. Therefore, the status of the Inverter can be easily understood by reading the information that shown on the front panel display. All possible messages are shown in the following table. Display information Operating conditions In English Description Power off No display PV inverter is totally shutdown, VPV <70V Standby Standby 70V≦ Input voltage <100V Initialization & waiting Waiting Input voltage range 100~150V during start-up.
Operating conditions In English Description Feeding current Iac = x.xA Feeding current amount in xx.x A PV array voltage Vdc = xxx.x V Input voltage from PV array, xxx.x VDC Etoday=xxx.
Operating conditions In English Description DC bus voltage is too high High DC Bus The DC BUS voltage is higher than expected DC bus voltage is too low Low DC Bus The DC BUS voltage is lower than expected Ref 2.5V Fault The 2.5V reference inside are abnormal 2.
7. Communications Inverter is equipped with a powerful communications interface and options. Use Inverter’s EZ control to monitor the status of your PV-Inverter. Also, qualified personnel can upgrade the firmware using the RS232 port. 1. RS232: To use the RS232 port, remove the RS232 cover on the bottom side of Inverter. It is a DB9 socket. The pin definition is Pin 1 2 3 4 5 6 7 8 9 Functional Description N.C. TxD RxD N.C. Common N.C. N.C. N.C. N.C. N.C. means “No Connection” 2.
EATON Contact Information Telephone: 1300 3 EATON Web: http://www.Eatonelectric.com.au/ To prevent risk of damage it is recommended that only authorized personnel perform firmware upgrades. Edition 1.
8. Trouble shooting In most situations, the Inverter requires very little service. However, if Inverter is not able to work perfectly, please refer to the following instructions before calling your local dealer. z Should any problems arise, the red (Fault) LED on the front panel turns on and the LCD displays the relevant information. Please refer to the following table for a list of potential problems and their solutions. Display System Fault Inverter Failure 29 Possible actions 1.
1. The internal temperature is higher than specified normal value Over 2. Find a way to reduce the ambient temperature. Temperature 3. Or move the inverter to a cooler environment 4. If it is not effective, please contact Eaton. Relay Failure DC INJ High EEPROM 1. Disconnect ALL PV (+) or PV (-) Failure 2. Wait for few seconds SCI Failure 3. After the LCD switches off, reconnect and High DC Bus check again Low DC Bus 4. If the message reappears, please contact Ref 2.5V Fault Eaton.
9. Specifications Electrical Model EATON ETN1000 EATON ETN2000 Nominal AC power 1000W 2000W Max. AC power 1100W 2200W (in 10 minutes) Input Nominal DCV 360VDC 360VDC Max. open DCV 500VDC 500VDC MPPT range 150 to 450VDC 150 to 450VDC Working range 100 to 500VDC 100 to 500VDC Max. input current 5ADC 10ADC Output Operational voltage 206~264 VAC 206~264 VAC 1 range (F/W Setting) Operational frequency 49.25~50.75Hz 49.25~50.75Hz range 2 (F/W Setting) Current distortion <3% <3% Power factor >0.99 >0.
∗Product specifications are subject to change without notice Edition 1.