E2Prom Error; Battery Fault; Cnc Overheat - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
5 System Alarms (Z)
Z51

E2PROM error

Details
[Type]
Z51 E2PROM error 0011: Read error
Z51 E2PROM error 0012: Write error
Remedy
 If the same alarm is output by the same operation, the cause is an H/W fault. Contact the Service Center.
Z52

Battery fault

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 will not
be cleared until the battery is replaced.
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.
Z53

CNC overheat

Details
The controller or operation board temperature has risen above the designated value.
(Note) Temperature warning
When an overheat alarm is detected, the alarm is displayed and the overheat signal is output simultane-
ously. Automatic operation will be continued, while restarting after resetting or stopping with M02/M30 is
not possible. (Restarting after block stop or feed hold is possible.)
The alarm will be cleared and the overheat signal will turn OFF when the temperature drops below the
specified temperature.
Z53 CNC overheat 000x
[000x]
(For all models)
0001: The temperature in the control unit is high.
The ambient temperature must be lowered immediately when a "Z53 CNC overheat" alarm occurs. How-
ever, if the machining needs to be continued, set "#6449/bit7 Control unit temperature alarm ON" to "0".
Then the alarm will be invalidated.
Remedy
Cooling measures are required.
Turn OFF the controller power, or lower the temperature with a cooler, etc.
001x
000x
87 IB-1501279-H