Electrical Connections
58
Notice!
Customers can communicate or control the inverter and exter-
nal devices through the COM interface. Professional users can
use pins 4 and 5 to realize data acquisition and external control
functions. The communication protocol is Modbus RTU. For de-
tails, please contact us.
If the user wants to use the inverter dry contact to control exter-
nal equipment (such as a heat pump), it can be used with our
Adapter Box. Please refer to the quick installation manual of the
Adapter Box for more details.
8
2. Pin denition for COM
Pin 1 2 3 4 5 6 7 8
Pin
Definition
Dry-contact_
in1
Dry-contact_
in2
X RS485_A RS485_B GND X X
1) White with orange stripes
2) Orange
3) White with green stripes
4) Blue
5) White with blue stripes
6) Green
7) White with brown stripes
8) Brown
■
BMS/DRM/COM connection steps
Step 1. Remove the plug. Pass the cable through the corresponding screw
caps and seals rings. Strip the insulation layer (length: 15mm) at one end of
the cable. Crimp a RJ45 terminal at the same end of the cable.
15 mm
Note!
it is recommanded to use CAT5 Cable.
To Next Page
Loading...
