Figure 5-19 Pin denitions
Pin Denitio
n
Function Description Pin Denitio
n
Function Description
1 485A1_1 RS485
dierential
signal +
For inverter
cascading or
connecting to
the RS485
signal port of a
SmartLogger
2 485A1_2 RS485
dierential
signal +
For inverter
cascading or
connecting
to the RS485
signal port of
a
SmartLogger
3 485B1_1 RS485
dierential
signal –
4 485B1_2 RS485
dierential
signal –
5 PE Shield layer
grounding
- 6 PE Shield layer
grounding
-
7 485A2 RS485
dierential
signal +
For connecting
to the RS485
signal port for
controlling the
power meter at
the grid
connection
point.
8 DIN1 Dry contact
for grid
scheduling
-
9 485B2 RS485
dierential
signal –
10 DIN2
11 - - - 12 DIN3
13 GND GND - 14 DIN4
SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual 5 Electrical Connections
Issue 18 (2024-03-10) Copyright © Huawei Technologies Co., Ltd. 56