2. Indicator Lamps
2.1 NC Unit Ready
II - 5
2. Indicator Lamps
2.1 NC Unit Ready
The NC UNIT READY lamp indicates that the NC unit is ready to run. This will light approx. one second after
the NC power is turned ON. The lamp is turned OFF at emergency stop or when an alarm occurs in the drive
or operation block.
2.2 Automatic Operation Busy
The IN AUTO OPERATION lamp is ON from CYCLE START switch turning on in the automatic operation
mode (Memory, or MDI) to the program end after M02 or M30 execution, reset, or emergency stop.
2.3 Automatic Operation Start Busy
The AUTO START lamp indicates that the NC unit is executing control in the automatic operation mode. It is
ON from the automatic operation start state entered when the CYCLE START switch is pressed in the
automatic operation mode (Memory, or MDI) to the automatic operation start end such as the automatic
operation pause busy state entered when the FEED HOLD switch is pressed or block completion stop (block
stop).
2.4 Automatic Operation Pause Busy
The AUTO PAUSE lamp is ON from FEED HOLD switch turning on to CYCLE START switch turning on or
when the MODE SELECT switch is changed from the automatic to manual mode during the automatic
operation.
2.5 Return to Reference Point
Output is executed when the controlled axis arrives at the reference point during manual or automatic
reference point return.
2.6 NC Alarm
The NC ALARM lamp is turned ON when an alarm occurs during NC operation.
2.7 M00
If M00 given in a program is executed during automatic operation, automatic operation stop is performed after
execution of the M00 block is completed. The M00 lamp is turned ON. (This depends on PLC processing.)
2.8 M02/M30
When M02 or M30 is executed during automatic operation, the NC unit reaches the program end and the
M02 or M30 lamp is turned ON. (This depends on PLC processing.)
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