IAI America ACON-CG - Manual (Page 72)

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5. I/O Signal Control and Signal Functions
„ Alarm reset (RES)
This signal provides two functions.
[1] Reset the alarm output signal (*ALM) that turned OFF due to an alarm
If an alarm has generated, turn ON this signal after confirming the nature of the alarm.
The controller will reset the alarm upon detection of a rise edge of the RES signal.
(Note) Certain alarms cannot be reset by the RES signal. For details, refer to 10, “Troubleshooting.”
[2] Cancel the remaining movement when the pause signal is OFF
This function is used when the remaining movement must be cancelled to allow for incremental moves
(movements at a constant increment) from the position where the actuator stopped following a sensor
detection.
„ Brake release (BKRL)
When the actuator is equipped with a brake, you may want to forcibly release the brake in certain situations such
as when starting up the system for the first time. Normally the brake release switch on the front panel of the
controller is set to the “RLS” side to release the brake. For added convenience, the brake can now be released
from the PLC.
If this signal is ON while the servo is off, the brake is released.
Use this signal to provide a release switch near the actuator when the actuator is located away from the
controller.
„ Operation mode (MODE)
This signal is effective when the teaching mode (teaching type) is selected.
When this signal is turned ON while the actuator is standing still, the normal operation mode will change to the
teaching mode.
The controller will turn ON the MODES output signal upon receiving this signal.
Program the PLC so that it will accept a current-position write command after confirming that the MODES output
signal is ON.
When this signal is turned OFF, the controller will return to the normal operation mode.
„ Current-position write (PWRT)
This signal is effective while the aforementioned MODES output signal is ON.
When this signal has remained ON for 20 msec or longer, the controller will read a position number, which is a
binary code consisting of currently detected PC1 to PC32, and write the current position data to the “Position”
field under the corresponding position number.
If the other items (speed, acceleration/deceleration, positioning, etc.) are not yet defined, the controller will write
the parameter default value. The controller will turn ON the WEND output signal upon completing the write
successfully.
Program the PLC so that it will turn OFF this signal after the WEND signal turns ON. The controller will turn OFF
the WEND signal when this signal turns OFF.
(Note) An alarm is generated if this signal is turned ON when home return is not completed or the actuator is
moving.
„ Manual operation switching (JISL)
This signal is valid when the teaching mode (teaching type) is selected. The actuator performs jogging if this
signal is turned OFF and inching if it is turned ON, via the manual mode switch signal.
If this signal is turned ON while the actuator is moving via jog operation, the actuator decelerates to a stop.
If this signal is turned OFF while the actuator is moving via inching operation, the actuator continues inching.