143
GoodWe
38 GoodWe
38.1 GoodWe(RS422)
Termination Addressing Interface
Yes No RS422
Selections available under GoodWe: RS422.
Overview
•
Integrated RS422 interface.
•
6-pin cable – only on RS485/422 B or C connection of the Solar-Log™.
•
Communication address does not have to be assigned.
•
Installation steps:
• Switch off the inverters and Solar-Log™.
• Connect inverters to the Solar-Log™.
• Connect the inverters to each other.
Connect inverters to the Solar-Log™
The wiring is done using a
•
partially ready-made RJ45 cable (not included)
or
•
self-made data cable with RJ45 plug and 6-pin terminal block connector.
Caution
Risk of damage to the unit!
The Solar-Log™ also has an RJ45 socket, which must never be connected to the RJ45 socket on the
inverter.
► Only connect inverters via the RS485/422 Solar-Log™ interface(s).
Procedure
1. Connect wires as shown in the diagram:
Solar-Log™ terminal strip connector RJ45 inverter
Terminal PIN
► 1 ► 6 Data+ (RX_RS485A)
► 3 ► 4 GND
► 3 ► 5 GND
► 4 ► 3 Data- (RX_RS485B)
► 5 ► 8 Data+ (TX_RS485A)
► 6 ► 7 Data- (TX_RS485B)
2. Run the wire from the Solar-Log™ to inverter 1 through the hole for the wire on the bottom of the unit.
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