Mitsubishi Electric M700VS Series Setup Manual page 571

MITSUBISHI CNC
Appendix 2 Explanation of Alarms
Z34 DeviceNet error
Details
Any of the following errors has occurred in the DeviceNet unit.
- Master function error (X03 is ON)
- Slave function error (X08 is ON)
- Message communication error (X05 is ON)
If the errors have occurred in more than one unit, the error No. of the unit with the smallest slot No. is
displayed.
If the master function, slave function and message communication errors have occurred at the same
time, the error is displayed in the following priority order.
1. Master function error
2. Slave function error
3. Message communication error
Remedy
- Select the [Ext. PLC link control] menu on the maintenance screen to open the unit confirmation
screen, and check the unit in error and details to cancel the error.
For the details of the DeviceNet unit errors, refer to "External PLC Link II (Bus connection) MELSEC-
Q Series Appendix 2 (DeviceNet)"BNP-C3039-276 (Appendix 2).
Z40 Format mismatch
Details
"#1052 MemVal (No. of common variables shared in part system designation)", formatted at "0", was
set to "1".
Remedy
- Reset "#1052 MemVal (No. of common variables shared in part system designation)" to "0" or format
and restart.
Z51 EEPROM ERROR
Details
The data read from EEPROM does not coincide with the data that has been written into it.
Remedy
- If the same alarm occurs with the same operation, a hardware fault may be the cause. Contact the
service center.
Z52 Battery fault 000x
Details
The voltage of the battery in the NC control unit has dropped. (The battery used to save the internal
data.)
0001: Battery warning
0002: Battery detecting circuit error
0003: Battery alarm
(Note)The display of "Z52 battery fault 0001" can be removed by resetting. However, the warning state
Remedy
- Replace the battery of the NC control unit.
- Check for any disconnection of the battery cable.
- After fixing the battery's fault, check the machining program.
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will not be cleared until the battery is replaced.