Sungrow SH3K6 - Page 45

User Manual 6 Electrical Connection
37
Label
Description
Backup Ctrl
Reserved.
PV1+, PV1-, PV2+,
PV2-
Terminals for the DC cables.
ON, OFF
DC switch.
Com.
Cable glands for Ethernet, RS485, CAN, AI, DI and DO.
Wi-Fi
Terminal for the Wi-Fi module.
BAT+，BAT-
Cable glands for the battery power cables.
Connection terminals on the inner configuration circuit board are shown below:
Fig. 6-2 Configuration Circuit Board Inside the Inverter
No.
Label
Connection
Tool Requirements
1
Copper
PV (Parallel mode)
Phillips screwdriver
2
Ethernet
Communication
-
3
DRM
Local control for SPI (Italy)
Flat-head screwdriver
with an open end of 2
mm
4
DI
Reserved
-
5
RS485
A1, B1 for external device,
A2, B2 for the meter
Flat-head screwdriver
with an open end of 2
mm
6
120 Ohm
RS485
-
7
BAT_Temp.
Temperature sensor
PT1000
Flat-head screwdriver
with an open end of 3
mm
8
BAT_Com.
(CANH,
CANL)
Battery communication
9
DO1
Power management
10
DO2
Earth fault alarm
11
BAT+, BAT-
Battery
Phillips screwdriver