IAI America PSEL - Manual (Page 338)

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Part 3 Positioner Mode
 Axis 1 servo ON (SON1)
The servo for axis 1 will remain 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.
 Axis 2 servo ON (SON2)
The servo for axis 2 will remain ON while this signal is ON.
Other details are the same as those explained under “Axis 1 servo ON (SON1).”
 Error reset (RES)
[1] 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) Depending on the nature of error, some errors cannot be reset using this signal. For details, refer
to 10, “Troubleshooting.”
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.”
4. Details of Each Output Signal
 Axis 1 positioning complete (PEND1)
This signal indicates that axis 1 reached the target position and the positioning has completed.
Use it together with the aforementioned MOVE signal to determine the positioning completion status on
the PLC side.
After the power was input and the servo has turned on, this signal will turn ON if the position deviation is
within the in-position band when the controller becomes ready.
Thereafter, this signal will turn OFF when the start signal is turned ON to execute a movement command.
The signal will turn ON if the position deviation from the target position is within the in-position band after
the start signal has turned OFF.
Once this signal turns ON, it will not turn OFF even after the position deviation subsequently exceeds the
in-position band.
(Note) If the start signal is ON, this signal will not turn ON even when the position deviation from the
target position falls within the in-position band. The signal will turn ON after the start signal turns
OFF.
Even if the motor is stopped, this signal will remain OFF if a pause signal is input or the servo is
off.
 Axis 2 positioning complete (PEND2)
This signal indicates that axis 2 reached the target position and the positioning has completed.
Other details are the same as those explained under “Axis 1 positioning complete (PEND1).”