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FANUC Controller
Program/G-code · Intermediate · 5-30 minutes
Fanuc 0 - Please turn off power
Alarm 000 is a notification, not a fault condition. It occurs when a parameter requiring power cycle to activate has been changed while parameter write enable (PWE) was set to 1. The control is prompting for a complete power cycle to implement the modified parameter value.
Fanuc 0 - Please turn off power
PLEASE TURN OFF POWER
A parameter that requires power-off to take effect has been modified while parameter write was enabled (PWE=1). The Fanuc control requires a complete power cycle before the new parameter value becomes active.
Root Cause Summary
Alarm 000 is a notification, not a fault condition. It occurs when a parameter requiring power cycle to activate has been changed while parameter write enable (PWE) was set to 1. The control is prompting for a complete power cycle to implement the modified parameter value.
Safety
Causes and Fixes
Record which parameter was changed and the new value for verification after reboot.
Set parameter write enable back to 0 (PWE=0) using the keep relay or parameter setting page.
Perform a complete power cycle - turn the control OFF, wait 10 seconds, then turn back ON.
Ensure machine is in a safe state and all axes are secure before power cycling.
After reboot, verify the parameter change took effect by checking the parameter value and testing affected functionality.
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Always verify with your machine manual or a certified technician before performing service procedures.