21
Pin
1
2
3
4
5
6
7
8
Definition
DRM1/5
DRM2/6
DRM3/7
DRM4/8
REF
GEN/0
COM
LOAD/0
Shorted blank
The RS485 communication interface of external meter
– A and B are separately connected
to the pin 8 and pin 6 of COM2 to realize the communication between the inverter and
meter.
CAUTION
Make sure the waterproof cover is tightly secured when external network
cables are not connected to the COM2 and COM3 interfaces.
Please install the waterproof terminal to ensure the waterproof performance
of the inverter when external network cables are connected to the COM2
and COM3 interfaces.
Wiring of COM2 and COM3
1.
Pass the cable through the waterproof terminal, press the RJ45 crystal plug with a
crimping tool, and insert the crystal plug into the housing of waterproof terminal.
2.
Insert the RJ45 crystal plug into the RJ45 port at the bottom of the inverter chassis
then tighten the screw nut.
3.
Tighten the sealing nut at the tail of the waterproof terminal.
