IAI America PSEL User Manual
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Part 3 Positioner Mode
Axis 1 home return complete (HEND1)
This signal is OFF when the power is input.
It will turn ON in the following conditions:
[1] When the home-return operation initiated by the start signal for the first movement command has
completed.
[2] When the home-return operation initiated by input of the home-return 1 signal has completed.
Once this signal turns ON, it will not turn OFF until the input power is cut off or the home-return 1 signal is
input again.
Axis 2 home return complete (HEND2)
This signal is OFF when the power is input.
It will turn ON in the following conditions:
[1] When the home-return operation initiated by the start signal for the second movement command for
axis 2 has completed.
[2] When the home-return operation of axis 2 initiated by input of the axis 2 home-return signal (HOME2)
has completed.
Once this signal turns ON, it will not turn OFF until the input power is cut off or the axis 2 home-return
signal (HOME2) is input again.
Alarm (*ALM)
This signal remains ON while the controller is normal, and will turn OFF if an alarm occurs.
This signal will turn OFF when an error of operation-cancellation level or higher generates.
Program the PLC so that it will monitor this signal and implement appropriate safety measures to protect
the entire system when the signal turns OFF.
For details on alarms, refer to Appendix “
Error Level Management” and “ Error List.”
Ready (RDY)
This signal will turn ON when the initialization has completed successfully after the main power was input,
and the controller enters the mode where it can control the actuator.
This signal will turn OFF when an error of cold level or higher generates.
Use this signal as a condition to start control on the PLC side.
Servo ON output 1 (SVON1)
This signal will turn ON when the servo for axis 1 turns on. Issue a movement command after the servo
ON output signal has turned ON.
Servo ON output 2 (SVON2)
This signal will turn ON when the servo for axis 2 turns on. Issue a movement command after the servo
ON output signal has turned ON.