Growatt MAX 80-150KTL3-X LV Series Installation & Operation Manual page 27

Inverters (Maximum 32 inverters) , the longest distance is 500 meters, high speed
(Baud rate 38400) , the communication port as following.
It is recommended to use shielded twisted pair for RS485 cable When a single
inverter communicates, the shielding layer of the RS485 cable needs to be connected
to the ground and can be connected to the PE of the inverter case; When multiple
inverters are connected in parallel, both RS485 interfaces must be used. The shield of
the RS485 cable should be connected to the GND of the RS485 terminal, and then the
GND of all inverters should be shorted together by wire. Finally, Connect the
communication ground GND of the inverter that is last connected to the monitoring
device to the protective ground of the inverter housing.
Mark
1/2
3
4
5
Fig 6.6A
Description
485-1 PE Shield
485-1 A1
485-1 B1
485-1 A1
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编号：GR-UM-C -00
Mark Description
9
10
11
12
DRM1/5
DRM2/6
DRM3/7
DRM4/8