Huawei SUN2000-33KTL - Page 66

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 signal +
2
RS485B, RS485 differential signal –
3
PGND
4
RS485A, RS485 differential signal +
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.