Growatt WIT 50-100K-US - External Communication Connection

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Table 6.4 Battery communication terminal description
Definition of battery communication terminal
Number
Definition of signal
Note
1
Wakeup+
Battery wake up signal
2
Wakeup-
3
RS485A3
The PCS communicates with the battery via
RS485
4
RS485B3
5
CANH
The PCS communicates with the battery via
CAN
6
CANL
7
CAN.GND
8
DI1
Battery shutdown input signal
9
DI2
10
NA
NA
11
NA
12
NA
13
NA
14
NA
15
NA
16
PE
Grounding
6.5.2 External Communication Connection
NOTE:
When connecting to external devices, such as the PC, please use isolated communication devices.
The external communication terminal of the WIT 50-100K-US Inverter is a 16-pin connector. The
matching terminal is in the accessory kit. The connection procedure is as follows:
1. Connect the communication cable to the corresponding terminal as required. For details, see
Table 6.5;
2. Remove the dustproof cover from the COM1 terminal and insert the 16-pin terminal (the client
side) to the corresponding position;
Fig 6.10 External communication terminal