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POST-INSTALLATION 

WARNING 

 

Service/changes to your electrical system should be carried out only by 

qualified electricians. Do not attempt to repair this product; it does not contain 

user-serviceable parts. Repairs and internal servicing should only be performed 

by authorized service personnel. 

Commissioning and Operating 

Step1.

 

Turn on the AC disconnect or the circuit breaker for  each micro inverter 

AC branch circuit. 

Step2.

 

Turn on the main utility-grid AC circuit breaker. Your system will start 

producing power after five minutes. 

Step3.

 

Register PV system on Darfon Solar Portal. (Monitoring System - Optional). 

Depending on the strength of the signal, it can take up to 2 hours before 

the monitoring system detects all the micro inverters in the PV system. 

 

LED 

LED Status 

Mode 

Possible Reason 

 

 

 

Status 

 

 

Solid Green 

Generate 

Operating normally   



 

Flashing Green 

Prepare 

Initialization, restart 

 

Solid Orange 

Single Output 

Another signal input voltage is 

abnormal

 



 

Flashing Orange 

Renew/Abnormal  F/W update or Memory Exception 

 

Solid Red 

Danger 

GFDI activated 



 

Flashing Red 

Protect 

OVP, UVP, OFP, UFP, ISL, OPP 

 

Off (at daytime) 

Fail 

Dead or No PV input 

 

GFDI Fault 

GFDI fault is defined as an unintentional, electrically conducting connection 

between an ungrounded  conductor of an electrical circuit and the normally 

non-current-carrying conductors, metallic enclosures, metallic raceways, metallic 

equipment or earth. When a Ground fault occurs, the GFDI will trigger the LED 

light to show continuous Red, and the micro inverter  will automatically 

disconnect all conductors as a safety precaution. 

 

If the GFDI has detected a ground fault, please contact with the installer and 

follow the Operation Manual to clear this condition. Or you can contact Darfon 

customer support at 

[email protected]

Disconnecting a Micro Inverter 

Disconnect all PV circuits from Distribution Panel before any work is done. 

Never

 

disconnect the micro inverters from PV modules while under load. 

 

Step1.

 

Disconnect the micro inverter from the AC trunk cable. Use an appropriate 

unlock tool to disconnect the mated connector pair. Do not force open the 

connector pair in any way without the appropriate unlock tool. Damages 

to the connectors may occur if wrong tools are used. 

 

   

Step2.

 

Completely cover the PV module with an opaque cover. 

 

 

WARNING 

Be aware that DC power/voltage is generated when the PV module is exposed to 

light. 

 

Step3.

 

Using a multi-meter, verify that the DC conductors between the PV 

module and the micro inverter carries no current. 

Step4.

 

Disconnect the PV module from the micro inverter. To disconnect the 

micro inverter’s DC connectors, please use a DC unlock tool. 

Step5.

 

If GEC grounding was installed, disconnect the grounding wire or washer 

from the micro inverter. 

Step6.

 

Remove the micro inverter from the PV racking. 

 

WARNING

 

 

Do not leave the AC connector on the AC trunk cable exposed for an extended 

period of time. If the removed micro inverter will not be replaced with another 

micro inverter immediately, connect a sealing cap to the connector. 

Содержание G640

Страница 1: ...G640 MI CRO I NVERTER U S E R M A N U A L...

Страница 2: ...OTECTION 7 INSTALLING THE MICRO INVERTER 8 INSTALLING ONTO A PV RACKING SYSTEM 8 POST INSTALLATION 10 COMMISSIONING AND OPERATING 10 GFDI FAULT 10 DISCONNECTING A MICRO INVERTER 10 MONITORING SYSTEM 1...

Страница 3: ...operation To reduce risk of burns use caution when working with micro inverters Do not disconnect the DC power source from the micro inverter without first disconnecting the AC power source Both AC an...

Страница 4: ...ogue pdf Citel MSB10 400 http www citel fr userfiles medias Datasheet fiche_anglaise MSB10 UL__A _F141103A pdf FCC Compliance This equipment has been tested and found to comply with the limits for a C...

Страница 5: ...e is recommended such as Belden 3105A however any twisted pair cable can be used such as CAT5 with some degradation of signal and distance Parts and Tools This section provides a list of equipment and...

Страница 6: ...o each G640 by completely isolating the internal DC circuit from the AC circuit and ground DC ground faults are detected on either the positive and or negative conductors of the DC circuit by a Ground...

Страница 7: ...ial number sticker on the DC side can be peeled off the micro inverter and adhered to the installation map template where the actual position on the roof would correspond to the same panel on the layo...

Страница 8: ...tion Align the connector to the position where the micro inverter will be installed Then secure the cable on either side of the rack using cable clips or tie wraps Note the G640 is the micro inverter...

Страница 9: ...as four parts the sealing nut clamp ring seal and cap Slide the sealing nut clamp ring and then the seal onto the AC trunk cable 7 3 Insert the individual wires into the slots inside the cap of the en...

Страница 10: ...allic enclosures metallic raceways metallic equipment or earth When a Ground fault occurs the GFDI will trigger the LED light to show continuous Red and the micro inverter will automatically disconnec...

Страница 11: ...the termination resistor switch on both the Data Logger and PLC Box should be switched ON If the distance between the Data Logger and PLC Box is less than 50m then the termination resistor switch on b...

Страница 12: ...connect the PV circuit from any grid power before installing the PLC box to the AC trunk cable or AC junction box Step 1 Connect the Data Logger to the Router There are two ways to connect the data lo...

Страница 13: ...he micro inverter Note To mount the data logger use the included wall mount frame Step 4 Connect the Data Logger to the PLC Box Insert the red black wiring into the RS485 connectors and then insert th...

Страница 14: ...Step1 Verify that any upstream AC disconnects as well as the dedicated circuit breakers for each AC circuit are functioning properly and are closed Step2 Verify that the AC voltages at the electrical...

Страница 15: ...rrectly use the steps below to troubleshoot the problem If the issue cannot be resolved using these steps please contact inverter maker s technical services Power LED did not turn on Verify that the P...

Страница 16: ...or local regulation PLC Box COMMUNICATION Serial Port Interface 1 x RS485 For Data Logger 1 Maximum Number of Devices Up to 24 Micro Inverters Maximum Transmission Distance2 Up to 164ft 50m MEMORY Int...

Страница 17: ...G 6 4 0 M i c r o I n v e r t e r U s e r M a n u a l G 6 4 0 U M d r a f t v1 20180928 2 0 1 8 D a r f o n E l e c t r o n i c s C o r p p 1 7 1 9 SAMPLE WIRING 240V 1...

Страница 18: ...C o r p p 1 8 1 9 INSTALLATION MAP TEMPLATE Use this map to draw the array and keep track of the micro inverters placement by serial number Peel off and use secondary serial number label on the micro...

Страница 19: ...d by Darfon Electronics Corp 167 Shan ying Road Gueishan Taoyuan 333 Taiwan R O C Tel 886 3 2508800 USA Office Darfon America Corp 103A Pioneer Way Mountain View CA 94041 Tel 1 650 316 6300 For more i...

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