Introduction
3
RS-485 communication specifi cation
Electrical characteristics
Compliant with EIA-485, straight cable
Use a twist pair cable (TIA/EIA-568B CAT5e or higher is recommended) and keep
the total wiring distance up to 50 m (164 ft.). *
Communication mode
Half-duplex communication
Asynchronous mode (data: 8 bits, stop bit: 1 bit/2 bits, parity: none/even
number/odd number)
Transmission rate
Selectable from 9,600 bps, 19,200 bps, 38,400 bps, 57,600 bps, 115,200 bps, and
230,400 bps
Protocol
Modbus RTU mode
Number of connectable units
Up to 31 units can be connected to one master controller.
* If the motor cable or power supply cable generates an undesirable amount of noise depending on the wiring or
confi guration, shield the cable or install a ferrite core.
About terms and units
Terms and units to be used vary depending on a motor or motorized actuator. This manual explains by using the
terms of the motor. When the motorized actuator is used, read this manual by replacing the terms.
Motor
Motorized actuator
Term
Torque
Thrust force
Moment of inertia
Mass
Rotation
Movement
CW direction
Forward direction
CCW direction
Reverse direction
Rotation speed
Speed
Resolution
Minimum travel amount
Unit
N·m
N
kHz/s
m/s
2