Figure 5-18 Pin denitions
Pin Denitio
n
Function Description Pin Denitio
n
Function Description
1 485A1_1 RS485
dierential
signal +
Used to
cascade
inverters or
connect to the
SmartLogger.
2 485A1_2 RS485
dierential
signal +
Used to
cascade
inverters or
connect to
the
SmartLogger.
3 485B1_1 RS485
dierential
signal –
4 485B1_2 RS485
dierential
signal –
5 PE Ground point
on the shield
layer
- 6 PE Ground
point on the
shield layer
-
7 485A2 RS485
dierential
signal +
Connects to
the RS485
signal port for
controlling the
power meter at
the grid-tied
point.
8 DIN1 Dry contact
for power
grid
scheduling
-
9 485B2 RS485
dierential
signal –
10 DIN2
11 - - - 12 DIN3
13 GND GND - 14 DIN4
15 DIN5 Rapid
shutdown/NS
protection/
OVGR
Supports
functions such
as rapid
shutdown, NS
protection, and
OVGR.
16 GND
SUN2000-(50KTL-ZHM3, 50KTL-M3)
User Manual 5 Electrical Connections
Issue 05 (2023-02-28) Copyright © Huawei Technologies Co., Ltd. 50