INVT Goodrive350 Series Operation Manual page 333

Goodrive350 IP55 High-ingress Protection Series VFD
The commissioning command to set the VFD whose address is 03H to run forward is as
follows:
03
VFD
address
Note:

Set the address (P14.00) of the VFD to 03.

Set P00.01 (Running command channel) to "Communication", and set P00.02
(Communication running command channel) to "Modbus/Modbus TCP".

After you click Send, if the line configuration and settings are correct, a response
transmitted by the VFD is received.
03
VFD
address
9.5 Common communication faults
Common communication faults include the following:

No response is returned.

The VFD returns an exception response.
Possible causes of no response include the following:
1. The serial port is set incorrectly. For example, the adapter uses the serial port COM1,
but COM2 is selected for the communication.
2. The settings of the baud rates, data bits, end bits, and check bits are inconsistent with
those set on the VFD.
3. The positive pole (+) and negative pole (-) of the RS485 bus are connected reversely.
4. The resistor connected to 485 terminals on the terminal block of the VFD is set incorrectly.
06 20 00
Parameter
Write
address
command
06 20 00
Parameter
Write
address
command
00 01
Forward running
00 01
Forward running
-315-
Communication protocol
42 28
CRC
42 28
CRC