Product specifications
Chapter 2 I/O ports
HA-680_V04 - 35 -
(I/O signal functions for speed control)
CN2-8 FWD enable: FWD-EN (input)
CN2-9 REV enable: REV-EN (input)
● Function
While the [FWD enable] is [ON] the actuator rotates forward when the [CN2-19 speed command:
SPD-CMD] is [+command]. In contrast, the actuator rotates in reverse for the [CN2-19] is [-command].
While the [REV enable] is [ON] the actuator rotates in reverse when the [CN2-19 speed command:
SPD-CMD] is [+command]. Conversely, the actuator rotates forward when the [CN2-19] is [-command].
When both signals of [FWD enable] and [REV enable] are [ON] or [OFF], the actuator is holding the
position or zero speed depending on the setting of [parameter]→[38: zero clamp].
Exchanging the signals of [FWD enable] and [REV enable] should be carried out when the actuator
stops and the [CN2-7 servo ON: S-ON] is ON state. Otherwise, the actuator may move rapidly falling into
dangerous situation.
Logic change can be performed with “13: Input pin logic setting” in “Parameter.” With the default value,
rotation starts at signal on.
CN2-19 Speed command: SPD-CMD + Command - Command
CN2-8 FWD enable: FWD-EN ON OFF ON OFF
ON
Zero clamp, zero
speed
REV rotation
Zero clamp, zero
speed
FWD rotation
CN2-9 REV enable: REV-EN
OFF FWD rotation
Zero clamp,
zero speed
REV rotation
Zero clamp,
zero speed
◆ Connection
Connect [NO-contact signal (a-contact)]. Connect +24 V of the input signal external power supply to
“CN2-12 Input signal common.”
The [zero clamp] or the [zero speed] does not function causing
servo-free in the status listed below. If actuators are applied a
large unbalanced load, servo-free state may cause physical
injury.
(1) No power supply for the main circuit and/or the control
circuit
(2) [OFF] state of [CN2-7 servo-ON: S-ON]
(3) Occurrence of an alarm
(4) The parameter “38: Zero clamp” is “0”.
WARNING