Com Communication - WESTECH Solax X3-HYBRID G4 Manual

Electrical Connection

5.5.4 COM Communication

COM communication interface is mainly provided for customization
the second step of development use.
The inverter supports the control
of external equipment or external equipment control through
communication.
For example, the inverter adjusts the working mode
of the heat pump and so on.
Ø
Application occasion
COM is a standard communication interface, through which the
monitoring data of the inverter can be directly obtained. Also, external
communication devices can be connected to carry out the secondary
development of the inverter. For specific technical docking, please
contact SolaX.
External communication equipment controls the inverter:
60
Date Read
Date Read
Date Write
Smart control device
(developing)
Inverter communication control external equipment:
Adapter
Box
Ø
COM PIN Definition
1
1 2 3
Drycontact_A(in) Drycontact_B(in) +13V
8
Note!
Customers can communicate or control the inverter and external
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 details, please
contact SolaX. If the user wants to use the inverter dry contact to
control external equipment (such as a heat pump), it can be used
with SolaX's Adapter Box. For details, please refer to the Quick
Installation Manual of the Adapter Box.
Electrical Connection
4 5 6 7 8
485A 485B GND Drycontact_A(out) Drycontact_B(out)
61