Goodrive300-19 series open loop vector inverter special for hosit Communication protocol
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10.5 Common communication fault
Common communication faults: no response to the communication or the inverter returns abnormal
fault.
The possible reasons for no response to the communication:
Select wrong serial interface: for example, if the converter is COM1, select COM2 during the
communication;
The baud rate, digital bit, end bit and check bit are not the same with the inverter;
+ and - of RS485 are connected in reverse;
The 485 wire cap on the terminal board of the inverter is not plugged in. The wire cap is behind the
terminal block.
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