Mitsubishi Electric M700VS Series Setup Manual page 585

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
EMG Emergency stop CVIN
Details
The "emergency stop" signal for power supply is significant (open) because the external emergency
stop function for power supply is enabled.
Remedy
- Cancel the "emergency stop" signal.
- Check for any broken wires.
EMG Emergency stop MCT
Details
The contactor shutoff test is being executed.
Remedy
- The emergency stop is reset automatically after the contactor shutoff is confirmed.
- If the contactor shutoff is not confirmed within 5 seconds after the "contactor shutoff test" signal has
been input, the "contactor welding detected" alarm occurs and the emergency stop status remains.
- Make sure that the contactor's auxiliary B contact signal is correctly output to the device that is set in
"#1330 MC_dp1" and "#1331 MC_dp2" (Contactor weld detection device 1 and 2), and then turn the
power ON again.
EMG Emergency stop IPWD
Details
The data backup for power failure might not have been executed successfully at the previous power
failure.
Remedy
- If this message appears frequently, the power supply may be deteriorated. Contact the service
center.
EMG Emergency stop SUIN
Details
The emergency stop input signal (M0) is OFF in the NC/PLC safety circuit.
Remedy
- Check the conditions for turning ON the emergency stop input signal.
- Check for any broken wires.
EMG Emergency stop STP2
Details
Sequence programs stopped in CNC.
Remedy
- Correct the rotary switch 1 (on the right) of the control unit if set to "1".
EMG Emergency stop MULT
Details
An error related to Q bus or Qr bus occurred.
Remedy
- Refer to the error No. that follows the message "A01 Multi CPU error" to take a remedy.
EMG Emergency stop LINE
Details
An error was detected when communicating with the drive unit.
Remedy
- Check the wiring.
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