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MITSUBISHI CNC
Appendix 2 Explanation of Alarms
Appendix 2.8 Emergency Stop Alarms (EMG)
EMG Emergency stop PLC
Details
The user PLC has entered the emergency stop state during the sequence process.
Remedy
- Investigate and remove the cause of the user PLC emergency stop.
EMG Emergency stop EXIN
Details
The "emergency stop" signal is significant (open).
Remedy
- Cancel the "emergency stop" signal.
- Check for any broken wires.
EMG Emergency stop SRV
Details
An alarm occurred in the servo system causing an emergency stop.
Remedy
- Investigate and remove the cause of the servo alarm.
EMG Emergency stop STOP
Details
The user PLC (ladder sequence) is not running.
Remedy
- Check the setting of the control unit rotary switch CS2. Correct it if set to "1".
- Check the [RUN/SP] (run/stop) switch on the PLC edit file save screen (onboard function). Turn it
OFF if ON.
EMG Emergency stop SPIN
Details
Spindle drive unit is not mounted.
Remedy
- Cancel the causes of the other emergency stop.
- Check the "emergency stop" signal input in the spindle drive unit.
EMG Emergency stop PC_H
Details
Failure in the high-speed PC processing abnormal
Remedy
- Correct the sequence program. (To stop monitoring the high-speed PC processing temporarily, set
"1" in "#1219 aux03/bit1 (Stop high-speed PC monitoring function)". Disable the monitoring function
only as a temporary measure.)
EMG Emergency stop PARA
Details
Setting of the door open II fixed device is illegal.
Setting of the parameters for dog signal random assignment is illegal.
Remedy
- Correct the "#1155 DOOR_m" and "#1156 DOOR_s" settings. (When the door open II fixed device is
not used, set "#1155 DOOR_m" and "#1156 DOOR_s" to "100".)
- Correct the "#2073 zrn_dog (Origin dog Random assignment device)", "#2074 H/W_OT+ (H/W OT+
Random assignment device)", "#2075 H/W_OT- (H/W OT- Random assignment device)" and "#1226
aux10/bit5 (Arbitrary allocation of dog signal)" settings.
566
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Troubleshooting
