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5.11 PLC Communication Connection
With a built-in PLC communication module, the inverter can communicate with the CO-
M100A/EMU200A (communication acquisition equipment) provided by SUNGROW. For
specific wiring method, please refer to the COM100A/EMU200A user manual.
•
In case of PLC communication, the AC cable must be a multi-core cable in-
stead of multiple single-core cables.
•
The communication acquisition equipment conducts data communication
through the AC output cable of the inverter and thus saves the trouble to lay
and maintain the special communication cables. The RS-485 port of the com-
munication acquisition equipment supports the transparent transmission of
MODBUS-RTU protocol and is completely compatible with the monitoring devi-
ces and software corresponding to the original RS-485 communication.
5.12 Dry Contact Connection
Dry contact cables require a cross section of 1 mm
2
to 1.5 mm
2
.
The connection procedure of the dry contact is the same as that of the RS485 ter-
minal block.
5.12.1 Dry Contact Function
The configuration circuit board is provided with fault output dry contact and emergency stop
dry contact, as shown in the figure below.
Connection method of the dry contacts is similar to that of the RS485 terminal block.
User Manual
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