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Epcom EPIG1K User Manual

Pv grid-connected inverter
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EPIG1K / EPIG2K

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Summary of Contents for Epcom EPIG1K

  • Page 1 EPIG1K / EPIG2K...

  • Page 2: Table Of Contents

    Contents 1. Manual Instruction 1.1 Symbols used in this manual ......................1 1.2 User group ........................... 2 1.3 Validity ............................2 2. Safety Instructions 2.1 Intended use ..........................2 2.2 Safety instructions ........................3 3. Unpacking 3.1 Scope of delivery .......................... 4 3.2 Identifying the Inverter ........................

  • Page 3: Manual Instruction

    1. Manual Instruction 1.1 Symbols used in this manual This manual contains important instructions for safety and operation which must be understood and carefully followed during installation and maintenance of the equipment. In order to reduce the risk of electric shock and to be sure that the equipment is correctly installed and ready to operate, special safety symbols are used in the manual to highlight potential safety risks or useful information.

  • Page 4: User Group

    This manual is for electrically skilled persons. The tasks described in this manual may only be performed by electrically skilled persons. 1.3 Validity This manual applies to EPIG1K / EPIG2K connected inverter and describes the mounting, installation, commissioning, maintenance and troubleshooting procedures.

  • Page 5: Safety Instructions

    Th e EPIG1K / EPIG2K is suitable for indoor and outdoor use and may only be operated with PV arrays (PV modules and cabling) of protection class II... Do not connect any sources of energy other than PV modules to the inverter.

  • Page 6: Unpacking

    Check the delivery for completeness and for any visible external damage. Contact your dealer if anything is damaged or missing. Object Description Quantity EPIG1K / EPIG2K inverter DC plug connectors (1 x positive/1 x negative) 1 pair AC plug assembly Wall plug...

  • Page 7: Mounting The Device

    4. Mounting the Device 4.1 Security DANGER! Danger to life due to fire or explosion! • Despite careful construction, electrical devices can cause fires. • Do not mount the inverter on flammable construction materials. • Do not install the inverter in areas where highly flammable materials are stored.
  • Page 8  The connection area must point downward.  Never mount the device with a forward tilt...  Never install the device with a sideways tilt.  Do not mount horizontally...  Mount at eye level to allow operating states to be read at all times. ...

  • Page 9: Mounting Instructions

    4.3 Mounting instructions Mounting procedures: a) Drilling holes: There are holes on the mounting template in the accessory, which is for help of orientation. Drill four holes for the screws at the selected installation position. The space between every two holes is shown in the figure below. Keep drilling vertical to the wall and don’t shake the drill to avoid holes tilting.
  • Page 10 NOTICE Before inserting wall plugs, measure the depth of every hole and the distance between every two holes. If the measured values do not meet the installing requirements, re-drill holes in the wall. c) Attach the inverter to the screws downwards slightly. 8>>...

  • Page 11: Electrical Connection

    5. Electrical Connection 5.1 Connection Area Overview The following figure shows the assignment of the individual connection areas on the bottom of the inverter. <<9...

  • Page 12: System Diagram

    20A and the max breaking capacity can reach more than 1kA. Provide DC power to the inverter. The allowable maximum open-circuit voltage of the PV arrays is 550V and maximum PV arrays short-circuit currents 13.5A EPIG1K / 15.5A for EPIG2K 10>>...

  • Page 13: Cable Sizing

    Wire Size Model (mm) EPIG1K EPIG2K There is only one channel of DC input which can connect one PV string. The red is “+”, and the black is “ -”. There is one c hannel of AC output, the red is L phase, the black is N phase，and the yellow-green is PE.

  • Page 14: Connection Of The Pv Generator (Dc)

    5.4 Connection of the PV generator (DC) 5.4.1 DC input wiring Negative Positive terminal terminal 5.4.2 DC connection Procedure Step 1: Assemble DC cable to connector at the inverter side. See “5.4.1 DC Input Wiring”. Step 2: Disconnect DC and AC circuit breakers. 12>>...

  • Page 15: Connecting The Inverter To The Grid

    Step 3: Check connection cable of one PV array string for correct polarity and that the maximum input open circuit voltage does not exceed 450V. Step 4: Measure DC voltage between positive terminal of the PV string and Earth and DC voltage between negative terminal of the PV string and Earth.
  • Page 16 Step 2: Insert stripped AC cables of appropriate size into the cable glands. Fix the phase cables into corresponding terminals with screwdriver according to marks. Fix ground cable into the ground terminal. Step 3: Screw the AC output cover. 14>>...
  • Page 17 Step 4: Tighten the cable gland in clockwise direction. <<15...

  • Page 18: Connecting Communication Cable

    5.5.2 AC connection Procedure Step 1: Assembling AC cables to connector supplied. See “5.5.1 AC Output Wring”. Step 2: Make sure that AC and DC circuit breaker are disconnected. Step 3: Connect L, N to AC circuit breaker. − Plug AC connector to corresponding AC terminals. −...

  • Page 19: Switch On And Off

    5.6.2 Monitor system connection The inverter provides RS485 interface to communicate with remote PC. User can monitor the state of the inverter and observe current running information and history record via this interface. Below is the method to install the monitoring system. 6.

  • Page 20: Operation

    off the DC breaker, otherwise it may lead to the damage of the DC breaker and danger to people. If any damage or loss occurs due to not following this requirement, we will not follow the warranty. 7. Operation 7.1 Display Overview Object Descriptions GREEN LED (Working normally)

  • Page 21: Lcd Display

    Whenever the supplied power from PV panel is sufficient (voltage>120VDC), Inverter converts power to the grid. If the power is insufficient (voltage<90VDC), the inverter enters a “waiting” state. Red LED: Fault mode The red LED indicates that the inverter has stopped feeding power into the grid because of fault, and the corresponding fault information will display on the LCD at the same time.
  • Page 22 AC Under Voltage Ac under voltage AC Over Freq Ac over frequency AC Under Freq Ac under frequency High Temperature Temperature abnormal AD Channel Fault Adc channel abnormal High Iac Leakage Ac leakage current over Over Current abnormal current Insulation Fault PV insulation fault No Utility No grid...
  • Page 23 Waiting key Upper pc key start, display until Null start entering standby Dc over voltage fault value and fault Fault Info:xxx.xV xx code Ac over voltage fault value and fault Info:xxx.xV xx code Ac under voltage fault value and fault Info:xxx.xV xx code Ac over frequency fault value and fault...
  • Page 24 1.AC over voltage Grid voltage is over 300V 2.voltage value,fault code 1.AC over voltage Grid Over Grid voltage is over the preset over 2.voltage value,fault voltage voltage protection point code While feeding grid, system detects 1.AC over voltage grid transient voltage over bus 2.voltage value,fault voltage -15V.

  • Page 25: Troubleshooting

    Relay check phase 1 fails, when 1.Relay Check Fail the first group relays are closed 2.fault value and fault while the second group relays are code opened Relay check phase 2 fails, when 1.Relay Check Fail the first group relays and the 2.fault value and fault second group relays are closed code...
  • Page 26 Connecting When PV voltage > 150V, inverter is Check Grid xxxS checking feeding conditions Feeding Grid Working Inverter is feeding power to the grid b. Monitoring Parameter Messages Operation Condition Messages Descriptions Instantaneous Output Pac= The real time output power in xxxx.xW Power xxxx.xW Accumulated energy...
  • Page 27 Corrective measures ◆Check the insulation of the PV plant ◆Check the PV plant for ground faults and have the PV generator installation engineer to fix the ground fault before reconnect the string in question The grid voltage is not within the permissible range.
  • Page 28 If the power frequency is within the tolerable range, but disturbances are still displayed, contact the SYSCOM / EPCOM Service line. Utility is not available. This can occur if the AC fuse is broken, No AC connections from utility system, or broken AC cables.
  • Page 29 Corrective measures Fault Restart the PV Inverter. If fault remains, disconnect the PV Inverter and contact the SYSCOM / EPCOM Service line The internal temperature is higher than normally allowed value Corrective measures Disconnect PV Inverter for a period (>30...
  • Page 30 Corrective measures EEPROM Restart the PV Inverter. EEPROM Problem failure If fault remains, disconnect the PV Inverter and contact the SYSCOM / EPCOM Service line. Communication between MCU inside is abnormal Communication failure Corrective measures SCI failure Restart the PV Inverter.

  • Page 31: Technical Data

    Technical data Specification/Type EPIG1K EPIG2K Max. DC Power 1200W 2300W Max. DC voltage 450V 550V MPP voltage range 90V-405V 150V-450V DC nominal voltage start voltage 150V Input(DC) Shutdown Voltage Typical 80V Max. input current 13.5A 15.5A Number of MPP-Trackers Number of strings...
  • Page 32 MPPT adaptation 99.5% 99.5% efficiency DC reverse-polarity protection DC Insulation monitoring AC short circuit protection Protection devices Grid monitoring Ground fault monitoring DC current monitoring Islanding protection Active Frequency Disturbance Dimensions(W×H×D) 330mm×425mm×142mm Net Weight 13.5kg Operating temperature –25 °C to +60 °C(up 45°C derating) range Relative humidity 0% to 100%, non-condensing...

  • Page 33: Appendix

    10. Appendix 10.1 Exclusion of liability The content of these documents is periodically checked and revised, when necessary, please call us for the latest information. However discrepancies cannot be excluded. No guarantee is made for the completeness of these documents. Please contact our company or distributors to get the latest version.

This manual is also suitable for:

Epig2k

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