Huawei SUN2000 Series User Manual page 46

SUN2000-(20KTL, 29.9KTL, 30KTL, 36KTL, 40KTL)-
M3
User Manual
Pin Definitio Function
n
1 485A1_1 RS485
differential
signal +
3 485B1_1 RS485
differential
signal –
5 PE Ground point
on the shield
layer
7 485A2 RS485
differential
signal +
9 485B2 RS485
differential
signal –
11 - -
13 GND GND
15 DIN5 Rapid
shutdown
Scenarios Where No Signal Cable Is Connected
If no signal cable is required for the SUN2000, use waterproof plugs to block the
wiring holes on the signal cable connector and connect the signal cable connector
to the communications port on the SUN2000 to improve the waterproof
performance of the SUN2000.
Issue 01 (2020-10-15)
Description
Used for
SUN2000
cascading or
connecting to
the RS485
signal port on
the
SmartLogger
-
Connects to
the RS485
signal port for
controlling the
power meter at
the grid-tied
point.
-
-
Supports AC
NS protection
shutdown,
which can be
used as a
reserved port
for rapid
shutdown
signals.
NO TICE
Copyright © Huawei Technologies Co., Ltd.
Pin Definitio Function
n
2 485A1_2 RS485
differential
signal +
4 485B1_2 RS485
differential
signal –
6 PE Ground
point on the
shield layer
8 DIN1 Dry contact
for power
grid
scheduling
10 DIN2
12 DIN3
14 DIN4
16 GND
5 Electrical Connections
Description
Used for
SUN2000
cascading or
connecting
to the RS485
signal port
on the
SmartLogger
-
-
40