Goodrive3000 series medium voltage VFD
Moudbus protocol
-208-
Click Send. If the line configuration and settings are correct, a response transmitted by the VFD is received
as follows.
Parameter
address
VFD
address
Write
command
CRC
Forward running
03
06
20 00
00 01
42 28
8.5 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:
The serial port is set incorrectly. For example, the adapter uses the serial port COM1, but COM2 is selected for the
communication.
The settings of the baud rates, data bits, end bits, and check bits are inconsistent with those set on the VFD.
The positive pole (+) and negative pole (-) of the RS485 bus are connected reversely.
The resistor connected to 485 terminals on the terminal block of the VFD is set incorrectly.
8.6 Related function codes
8.6.1 Related function codes for Goodrive3000 rectifier
Functio
n code
Name
Description
Setting
range
Default
P11.00
Local
communication
address
1
–247; 0 indicates a broadcast address
1
–247
1
P11.01
Communication
baud rate
0: 1200BPS
1: 2400BPS
2: 4800BPS
3: 9600BPS
4: 19200BPS
5: 38400BPS
0
–5
4
P11.02
Data bit check
0: No check (N, 8, 1) for RTU
1: Even check (E, 8, 1) for RTU
2: Odd check (O, 8, 1) for RTU
3: No check (N, 8, 2) for RTU
4: Even check (E, 8, 2) for RTU
5: Odd check (O, 8, 2) for RTU
0
–5
1
P11.03
Communication
response delay
0
–200ms
0
–200
5
P11.04
Communication
timeout time
0.0 (invalid); 0.1
–60.0s
0.0
–60.0s
0.0s
P11.05
Transmission error
processing
0: Report an alarm and coast to stop
1: Keep running without reporting an alarm
2: Stop in enabled stop mode without reporting an
alarm (applicable only to communication mode)
3: Stop in enabled stop mode without reporting an
alarm (applicable to any mode)
0
–3
0
