How do I fix and clear Mazak alarm 1020?

Contact the nearest Mazak Technical Center or Technology Center. Clearing procedure: Fix cause → press RESET.

CRITICALAlarm code

1020

SMART SAFE OPER. SYSTEM ALARM1 (No., Axis name, )

Q: What does Mazak alarm 1020 mean?

Mazak alarm 1020 is "SMART SAFE OPER. SYSTEM ALARM1 (No., Axis name, )". A safety monitoring function error was detected. No. | Cause --- | --- 1 | SSM hysteresis width setting error SSM hysteresis width is larger than SSM speed. 2 | Safety absolute position not established 1. The safety absolute position has not been established even once after making valid SLP/SCA. 2. In the encoder diagnosis performed while SLP/SCA power is off, there is a positional offset between the position saved when the power was turned off and the position restored when the power was turned on. Error type: NC Equipment — system hardware/software error. Machine state: Emergency stop — machine fully stopped.

What it means

A safety monitoring function error was detected. No. | Cause --- | --- 1 | SSM hysteresis width setting error SSM hysteresis width is larger than SSM speed. 2 | Safety absolute position not established 1. The safety absolute position has not been established even once after making valid SLP/SCA. 2. In the encoder diagnosis performed while SLP/SCA power is off, there is a positional offset between the position saved when the power was turned off and the position restored when the power was turned on.

What to do

1Contact the nearest Mazak Technical Center or Technology Center.

Codebook — decoded

EError typeNC Equipment — system hardware/software error

HStop statusEmergency stop — machine fully stopped

OClearingFix cause → press RESET

Still faulted after these steps? Do not restart under load — ask the Mazatrol assistant.

Still stuck? Ask the Mazatrol assistant →