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
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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
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This parameter is used to set the transmission speed between the RS485 master (PLC, PC, etc.) and AC
motor drive.
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