
6-1
Items
Specification
Interface
RS-485
Communication type
Asynchronous (start - stop synchronization)
Communication parameters
Baud rate: 4800, 9600, 19200 and 38400 bps
Data Length: 7 or 8 bits
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 AC Drives
Maximum 32 units
Communication wiring and setup
(1) Turn off power to the AC Drive.
(2) Connect communication lines of the controller to the AC Drive (RJ45).
(3) Turn power on.
(4) Set the required communication parameters (09-00) via the keypad.
(5) Turn off power to the AC Drive and wait until keypad is completely off.
(6) Turn power on
(7) Start communication between controller and AC Drive.
6. Communications
The built-in RS-485 can support the following communication protocols:
• Modbus communication protocol
• BACnet communication protocol
The communication port (RJ45 or S+ and S- terminals) can be used to monitor, control, program and trouble-shoot
the AC Drive.
Modbus communication can perform the following operations independent of the frequency command (00-05) setting
and Operation command (00-02) setting:
• Monitor AC Drive signals
• Read and write parameters.
• Reset fault
• Control multi-function inputs