Ø COM PIN Definition
Ø Application occasion
Electrical Connection
Electrical Connection
6.5.4 COM Communication
Data Read
1 2 3 4
5
6
7 8
1
8
485A
485B
GND
Drycontact_A(in)Drycontact_B(in) Drycontact_A(out)
Drycontact_B(out)
+13V
Adapter
Box
External communication equipment controls the inverter
Inverter communication control external equipment
●
62
63
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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.
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 us.
Notice!
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 us. If the user wants to
use the inverter dry contact to control external equipment (such as a heat
pump), it can be used with our Adapter Box. For details, please refer to the
Quick Installation Manual of the Adapter Box.
USB to RS485
converter
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