Chapter 5 Parameters_VFD-B Series
Revision 10/2005, BE13, SW V4.08 5-91
Group 9: Communication Parameters
There is a built-in RS-485 serial interface, marked RJ-11 near to the control terminals. The pins are defined
below:
6
1
1: EV
2: GND
3: SG-
4: SG+
5: Reserved
6: Reserved
Each VFD-B AC drive has a pre-assigned communication address specified by Pr.09-00. The RS485 master then
controls each AC motor drive according to its communication address.
09 - 00
aCommunication Address
Settings 01 to 254 Factory Setting: 01
If the AC motor drive is controlled by RS-485 serial communication, the communication address for this
drive must be set via this parameter. And the communication address for each AC motor drive must be
different and unique.
09 - 01
aTransmission Speed
Factory Setting: 01
Settings 00 Baud rate 4800 bps (bits / second)
01 Baud rate 9600 bps
02 Baud rate 19200 bps
03 Baud rate 38400 bps
This parameter is used to set the transmission speed between the RS485 master (PLC, PC, etc.) and AC
motor drive.
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