3. Reset Switch and Emergency Stop Button
3.1 Reset Switch
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3. Reset Switch and Emergency Stop Button
3.1 Reset Switch
The NC unit is reset by turning ON the RESET switch on the machine operation panel or the RESET key on
the setting display unit. When the RESET switch or key is turned ON while the controller is running, the unit is
placed in one of the following states.
1) If a movement command is being executed, movement stops with deceleration and the remaining
distance in the executing block is cleared.
2) If miscellaneous function such as M, S, or T is being executed, execution of the miscellaneous
function is interrupted.
3) The active and buffer memory contents and display are cleared.
4) If a program error occurs and remains, the program error state is cleared and the NC ALARM lamp
is turned OFF.
5) If reset is input while using the input/output device, the input/output is interrupted.
3.2 Emergency Stop Button
The EMERGENCY STOP button is a red mushroom-shape pushbutton. The not ready state is set by
pressing the EMERGENCY STOP button.
During emergency stop, the READY lamp is turned OFF and automatic operation and manual operation do
not work. The NC unit is reset.
If the EMERGENCY STOP button is pressed when a movement command is executed, the moving axis
stops and all other machine motions also stop. When the EMERGENCY STOP button is released, the
READY lamp is turned ON in about one second and operation enable state (READY state) is entered.
When parameter is emergency stop hold type, if the EMERGENCY STOP button is released, the emergency
stop state is held. To release the emergency stop state, turn ON the RESET switch.
If the EMERGENCY STOP LIMIT switch of each axis works, the same state as if the EMERGENCY STOP
button were pressed may be entered depending on the machine specifications.
CAUTION
If the axis overruns or makes an abnormal noise, press the EMERGENCY STOP button
immediately and stop the axis.
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