09 - Communication Parameters
Code Parameter Name / Range
09-00 INV Communication Station Address
1~31
09-02 Baud rate setting (bps)
0: 1200
1: 2400
2: 4800
3: 9600
4: 19200
5: 38400
09-03 Stop bit selection
0: 1 stop bit
1: 2 stop bits
09-04 Parity selection
0: No Parity
1: Even bit
2: Odd bit
09-05 Communication Data Bit Selection
0: 8 Bit Data
1: 7 Bit Data
09-06 Communication error detection time
0.0~25.5 s
09-07 Fault stop selection
0: Deceleration to stop based on deceleration time 1.
1: Coast to stop when communication fault occurs.
2: Deceleration to stop based on deceleration time 2
3: Keep operating when communication fault occurs.
09-08 Comm. fault tolerance count
1~20
09-09 Waiting time
5~65 msec
The Modbus communication port RJ45 (S+, S-) can be used to monitor, control, program and trouble-shoot the
inverter.
Modbus communication can perform the following operations, independent of the frequency command selec-
tion (00-05) setting and Operation command selection (00-02) setting:
• Monitor inverter signals
• Read and write parameters.
• Reset fault
• Control multi-function inputs
Modbus(RS-485)communicationspecication:
Items Specification
Interface RS-485
Communication type Asynchronous (start - stop synchronization)
Communication parameters Baud rate: 1200, 2400, 4800, 9600, 19200 and 38400 bps
Data Length: 8 bits (Fixed)
Parity: options of none, even and odd bit.
For even and odd selection stop bit is fixed at 1 bit.
Communication protocol Modbus RTU / ASCII
Number of inverters Maximum 31 units
Communication wiring and setup
(1) Turn off power to the inverter.
(2) Connect communication lines of the controller to the inverter (RJ45).
VDI100 • Instruction manual 211
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