Sungrow SG125HV-30, Руководство пользователя

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User Manual 5 Electrical Connection
49
The connection of additional grounding terminal is optional. Whether to
connect the terminal is determined according to local standards or
regulations, but connection is recommended.
Cable Connection
Fig. 5-9 Additional grounding
connection
* Connection parts are not within
the scope of delivery
* For torque specifications, refer to 10.2 Tightening Torques.
5.5 RS485 Communication Connection
5.5.1 Communication Overview
There are two communication waterproof connection terminals on the bottom of
the inverter. RS485 A/B terminals and RS485 interface are provided on the
configuration circuit board of the junction box. A 120
Ω terminating resistor can
be connected between the A and B communication cable through the dip switch.
Item Name Description
A Screw
M6
×
12mm
B Lock washer -
C Washer -
D Cable socket -
E Grounding
cable* -
*the cross section of the grounding cable
should not be less than half of the PE
cable of the AC cable.