Specifications

Chapter 1 Outlines of the HA -655 driver
- 5 -
1-6 Front panel
Functions
◆ LED display
Indicates operating states of the HA-655 driver, parameters, alarms, by a 6-digit 7segment-LED.
◆ Keys labeled [UP], [DOWN], [ADJ], and [SET]
Are used for changing indications, setting and tuning functional parameters, and operating an actuator
manually in a JOG mode.
◆ CN1: encoder connector
Accepts a connector of an encoder cable form an actuator.
◆ CN2: I/O connector
Accepts I/O signals to/from a host device.
◆ CN3: Serial port connector (compliant with RS-232C)
Is connected to a PC with a dedicated cable. You can monitor, set, and tune parameters on the PC’s
display. (Notice: Optional software is available.)
◆ Power supply terminals: r, s, R, S, T
Are provided for connecting the power supply. Control power is supplied to the [r, s] terminals, and main
power is supplied to the [R,S,T] terminals. (single Phase: R,S; or three phase: R,S,T).
◆ External regeneration resistor terminals: R1, R2
If the built-in regeneration resistor is insufficient in its capacity to handle frequent start/stop operations of
an actuator, an external resistor can be connected to these terminals.
◆ Actuator terminals: U, V, W
Accept an actuator cable. Connect each motor wire to the driver’s terminal marked with a same symbol.
If you confuse the symbols, the driver and the actuator may be in failure.
◆ Ground terminals (Protective earth)
Connect grounds here to prevent electrical shock.
LED display
ADJ key
SET key
CN3
：
serial port
connector
(compliant with RS-232C)
CN2: I/O
connector
Power supply terminal
CN1: Encoder
connector
DOWN key
UP key
For control power: r,s
For main power: R,S,T
For regeneration resistor: R1,R2
For actuator: U,V,W
Ground terminals
HA
-
655
-
2