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Epcom EPIG5K User Manual

Pv grid-connected inverter
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Summary of Contents for Epcom EPIG5K

  • Page 1 EPIG5K...

  • Page 3: Manual Instruction

    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

    (time to be indicated adjacent to the symbol) 1.2 User group Please read this manual thoroughly. This manual contains information about EPIG5K single phase grid-connected inverter of transportation, installation, operation, maintenance and troubleshooting. 1.3 Validity This manual applies to EPIG5K grid-connected inverter.
  • Page 5 The connection to the distribution grid must be done only after receiving approval from the distribution utility as required by national and state interconnection regulations, and can be done only by qualified personnel. Comply with all corresponding marks and symbols present on each device. During operation, make sure that all covers and doors are closed.

  • Page 6: Product Description

    WARNING! Do not change the internal components of the inverter without permission. WARNING! If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Product Description 3.1 Photovoltaic/PV grid-connected system PV grid-connected system consists of PV modules, grid-connected inverters, metering device and power distribution system (Figure 1).

  • Page 7: Basic Structure

    3.2 Basic structure DC/AC BOOST Figure 2 Working principle of EPIG5K This inverter is designed with boost+ inverter topology. The DC filter prevents the penetration of high-frequency line-bound interference. After the voltage equalization by the capacitor, the inverter converts the direct current from solar power system into alternating current with the same frequency and phase with the grid.
  • Page 8 PV Input RS485 Communication Terminal AC Output DC switch Figure 3 External Appearance of Information Installation method as shown in the 5.5.1 of “Ⅰ”. PV Input RS485 Communication Terminal DC switch AC Output Figure 4 External Appearance of the special Information Installation method as shown in the 5.5.1 of “Ⅱ”.

  • Page 9: Dimensions And Weight

    3.3.2 Dimensions and weight Figure 5 Dimensions of The dimensions of the mm × × mm (W×H×D). The inverter weighs approximately kg. Please take this dimension and weight into consideration during shipping, moving and installation. 3.4 Technical data Type Specification Input a t l i t a...
  • Page 10 Full-load MPPT voltage range 250~420VDC Number of MPP-Trackers MPPT efficiency (static) ＞99% Output (AC) continuous Working manner Output phase number single phase and 3 line Nominal AC power Nominal AC voltage 230Vac Nominal AC current Max allowable AC current Nominal frequency Distortion （THD）...
  • Page 11 TUV: DIN VDE 50.2Hz/47.5Hz 0126-1-1 Grid lower G59/2 /over-frequency G83-1 protection points AS4777 Residual current monitoring Comply with DIN VDE 0126-1-1 Fault current monitoring Comply with DIN VDE 0126-1-1 Anti-islanding protection Comply with DIN VDE 0126-1-1 Standard Safety IEC 62109-1，IEC 62109-2 certification VDE/TUV/CE EN61000-6-1,EN61000-1-2;Class B...

  • Page 12: Installation

    Installation 4.1 Safety 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 13: Wall Mounting

    The machine should be installed in the reinforced concrete wall or metal wall that can bear the weight of the inverter. It should not be installed in the wood to keep from danger of fire. Height from ground level should be such as to ensure that the display and status LEDs are easy to read.

  • Page 14: Electrical Connection

    The inverter needs to be lifted up and then slid down over the hooks making sure that the connecting points in the bracket and in the back of the inverter engage properly. Electrical Connection 5.1 General safety instruction DANGER! Improper operation during the wiring process can cause fatal injury to operator or unrecoverable damage to the inverter.
  • Page 15 5.2 The electrical connection diagram overview Inverter electrical connection includes PV side electrical connections, AC side electrical connections and communication cable electrical connection. Item Remarks Used as a protective device during electrical connection. User must equips this device according to the maximum input voltage DC circuit breaker and current.

  • Page 16: Cable Requirements

    5.3 Cable requirements All cables for PV power system are equipped with water-proof direct plug-in connectors. You‘ll find these connectors in the package. For electrical connection in the PV system described above, the cross section of all cables used should not be smaller than the following requirements. Terminals AC Output DC Input 1...
  • Page 17 5.4.2 DC connection 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. Step 3: Check connection cable of one PV array string for correct polarity and that the maximum input open circuit voltage does not exceed 520V.

  • Page 18: Connecting Inverter To Ac Grid

    Step 5: Plug DC positive and negative connector into corresponding terminals. If it makes a click sound, it means DC connector has attached to terminals. Step 6: Link the rest of the two photovoltaic module strings in the same manner. NOTICE To create the sealing of the inverter, all the DC inputs that are not required have to be closed as follows:...
  • Page 19 Step 1: Unscrew AC output cover at the downside of the machine. 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. - 17 -...
  • Page 20 Step 3: Screw the AC output cover. Step 4: Tighten the cable gland in clockwise direction. Ⅱ: Pluggable AC output terminal installation method NOTICE The following installation method is only applicable to the series of special ,External Appearance as shown in Figure 4. - 18 -...
  • Page 21 Step 1: Put the wires through Screw Cap, Adapter Body of the AC female connector. Keep the wire L, N, PE corresponding to 1、 3、 of the AC male connector on the inverter correctly. Wire red Wire black Wire yellow&green Attention！...

  • Page 22: Connecting Communication Cable

    DANGER! Danger to life due to fire or explosion! Despite careful construction, electrical devices can cause fires. • Do not pull out the connector, when grid-connected inverter is working, so as to avoid electric shock hazard. • Do not immediately contact pin, when grid-connected inverter after disconnection, there may be residual electricity, 5.5.2 AC connection Step 1: Assembling AC cables to connector supplied.

  • Page 23: Switch On And Off

    Blank 2. Fasten the waterproof ring and case. 3. Finally, match the finished terminal to the RS485 communication port on the inverter’s case，then it is ready for communication. 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.

  • Page 24: Switch Off

    6.2 Switch off 1. When solar power was not enough to generate the power, the inverter will shut down automatically. 2. If you need to shut down yourself, you can operate the inverter through the front panel screen. 3. The process of emergency shutdown. If you need shut down the inverter in emergency, first turn off the AC breaker, then turn off the DC breaker, otherwise it may lead to the damage of the DC breaker and danger to people.

  • Page 25: Troubleshooting Of Faults In Lcd Screen

    “Vgrid-min”, please contact your local electricity company to adjust the grid voltage. 5. If the fault still exists, please contact SYSCOM / EPCOM RPH.OFR Over-frequency in the grid 1. Disconnect AC circuit breaker.
  • Page 26 3. Check whether grid is cut off. 4. If all conditions are OK and this malfunction still occurs in the LCD screen, please contact SYSCOM / EPCOM MO.FAULT There is a fault in the module If this malfunction occurs, the reasons are very of the inverter.

  • Page 27: Front Panel Introduction

    Operation Instructions 8.1 Front panel introduction The front panel consists of LCD, state indicator and the button, by which we can set the parameters and observe the operating status. LCD display Button Indicator Figure 9 LCD and Interface 8.2 Operation of LCD 8.2.1 RUN INFO.
  • Page 28 4. It first shows the PV input parameters 5. Press , it displays the actual parameters of AC output 8.2.2 HISTORY 1. Enter the default main menu interface; 2．Press “ENTER”into the “control main menu; 3．Select “HISTORY”; 4. Press “ENTER”into the “History” menu 5.
  • Page 29 9. Select OK ,press “ENTER”, it will shows the input code interface;  10. Input the correct password ,the history information will be cleared ,please confirm it before the operation。  8.2.3 POWER ON/OFF 1. Enter the default main menu interface; 2. Press “ENTER”into the “control main menu”;  ...
  • Page 30 NOTICE In normal case, when the external condition is OK, the machine will start by itself. 8.2.4 PARA. SET 1. Enter the default main menu interface; 2. Press“ENTER”into the “control main menu”; 3. Select “PARA. SET”; 4. Press “ENTER”; 5. The default password is month+date+time, six number, eg: month and date is 2011-06-07, time is 15:23:11, so the code is 060715;...
  • Page 31 10. Select “communication set”, press “ENTER”, you can baut rate; set the communication address and the 11. Select “Protection set”, press “ENTER” into the protection setting interface ,you can set the on-grid voltage and the protect frequency; 12. Select “Code set”, press “ENTER “into the code setting interface, you can set the password in order to strengthen the safety of the system;...

  • Page 32: Packaging List

    8.2.5 PRODUCT INFO. 1. Enter the default main menu interface; 2. Press “ENTER” into the control main menu. 3. Select “product information”; 4. Press“ENTER” 5. The interface will display the company’s name, the product’s type and software version. Appendix 9.1 Packaging list Check the packaging list for completeness and for any visible external damage.

  • Page 33: Exclusion Of Liability

    9.2 Exclusion of liability The content of these documents is periodically checked and revised, when necessary, please call us or check our website 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.

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