SUN2000-(33KTL, 40KTL)
User Manual
5 Electrical Connections
Issue 03 (2015-12-01)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
60
Figure 5-23
RJ45 connector
Table 5-5
RJ45 connector pin definitions
Pin
Function
1
RS485A, RS485 differential
2
RS485B, RS485 differential signal –
3
PGND
4
RS485A, RS485 differential
5
RS485B, RS485 differential signal –
6
PGND
7
PGND
8
PGND
Procedure
Method 1: Connecting to the Terminal Block (Recommended)
a.
Remove an appropriate length of the insulation layer from the cable using a wire
stripper, as shown in
Figure 5-24
.
Figure 5-24
Stripping an RS485 communications cable (unit: mm)
b.
Remove the locking caps from the
COM1
and
COM2
waterproof cable connectors
at the inverter bottom and remove the plugs from the locking caps.
c.
Route the cables through the locking caps and the
COM1
and
COM2
connectors at
the inverter bottom.