BENSHAW RSi GM2 Series, Instruction Manual

Page: 192 / 282

RS-485 Communication Features
890054-00-00
GM2 Series VFD
182
Setting Communication Parameters
Before proceeding with setting communication configurations, make sure that the communication
lines are connected properly. Turn on the inverter and set the communication parameters.
Group Code Name Setting Setting Range Unit
CM
01
Built-in communication inverter
ID
1 1 – 250 -
02 Built-in communication protocol 0
ModBus
RTU
0, 2 -
03 Built-in communication speed 3 9600 bps 0 – 7 -
04
Built-in communication frame
setting
0 D8/PN/S1 0 – 3 -
05
Transmission delay after
reception
5 0 – 1000 ms
Communication Parameters Setting Details
Code and Features Description
CM.01 Int485 St ID Set the inverter station ID between 1 and 250.
CM.02 Int485 Proto
Select one of the two built-in protocols: Modbus-RTU or LS INV 485.
Configuration Function
0 Modbus-RTU Modbus-RTU compatible protocol
2 LS INV 485 Dedicated protocol for the LS inverter
CM.03 Int485 BaudR
Set a communication setting speed up to 115,200 bps.
Configuration Function
0 1200bps
1 2400bps
2 4800bps
3 9600bps
4 19200bps
5 38400bps
6 56Kbps
7 115 Kbps (115,200 bps)
CM.04 Int485 Mode
Set a communication configuration. Set the data length, parity check method,
and the number of stop bits.
Configuration Function
0 D8/PN/S1 8-bit data / no parity check / 1 stop bit
1 D8/PN/S2 8-bit data / no parity check / 2 stop bit
2 D8/PE/S1 8-bit data / even parity / 1 stop bit
3 D8/PO/S1 8-bit data / odd parity / 1 stop bit