Overvoltage Detection Alarm; Memory Ecc Error - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
5 System Alarms (Z)
Z86

Overvoltage detection alarm

Details
Overvoltage was detected in hardware voltage.
Remedy
Turn OFF and ON the NC power.
If this alarm occurs frequently, check the power supply voltage.
Z92

Memory ECC error

Details
Incorrect data has been read out from the internal memory.
Remedy
Contact the service center.
0002
0004
93 IB-1501279-H