User Manual 6 Electrical Connection
41
The ground connection of this second PE terminal cannot replace the
connection of the PE terminal of the AC cables. Make sure the two PE
terminals are all grounded reliably. Sungrow shall hold no liability for any
possible consequences caused by ignorance of this warning.
Cable Connection
Fig. 6-4 Second PE connection
* Connection parts are not within the
scope of delivery
6.5 Communication Connection
6.5.1 Communication Overview
The inverter operation information can be transferred via its integrated RS485
interface to a PC with monitoring software (such as SolarInfo Insight), or to data
logging device (such as SolarInfo Logger).
RS485 is the standard communication choice for inverter.
The communication terminals (RS485) are located at the bottom of the inverter. And
there are two optional connection terminals on the configuration circuit board:
RS485 A/B terminal blocks and RJ45 plug in terminals.
If a 120Ω terminating resistor is to be connected between the communication cable
A and B, connect the terminal resistance by using the dip switch.
Item Name Description
A Screw
M6×12mm
B Lock washer -
C Washer -
D Cable socket -
E
Yellow-green
cable*
-
*the cross-sectional area of the
yellow-green cable shall be exactly the
same with that of the PE cable of the AC
cable.
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