IAI America PSEL - Manual (Page 317)

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Part 3 Positioner Mode
 Cancellation (*CANC)
If this signal turns OFF while the actuator is moving, the controller will cause the actuator to decelerate to
a stop. The remaining travel distance will be cancelled and the movement will not resume even when the
signal turns ON thereafter.
 Home return (HOME)
The actuator will start home-return operation upon detection of the OFF
 ON edge of this signal.
Once the home return is complete, the HEND signal will be output. This signal can be input as many
times as desired after completion of the initial home return.
(Note) An actuator of incremental specification must always perform home return after the power is
turned on.
 Servo ON (SON)
The servo remains on while this signal is ON.
To operate the actuator using the start input/home return input, the servo ON input signal must be ON. If
the servo ON input signal is OFF, these operation commands will not be accepted. (Only the commands
will be ignored, and no error will generate.)
(Note) When this signal turns OFF while the actuator is moving, the actuator will not decelerate to a stop.
It will complete the movement to the target position, after which the servo will turn off.
Warning: If the servo is turned on near the mechanical end, excited phase detection may not be
performed properly and an excited pole indetermination error or excited pole detection
error may generate.
Move the slider, rod, etc., away from the mechanical end before turning on the servo.
 Error reset (RES)
This signal is used to reset the alarm output signal (*ALM) that has been generated due to an error.
If an error occurred, check the content of the error and then turn this signal ON.
The error will be reset upon detection of the leading edge of the signal.
(Note) Errors of cold start and higher level cannot be reset using this signal. The power must be
reconnected to reset these errors. For details, refer to Appendix, “Error Level Management.”