Fanuc alarm
The axis lost its absolute position.
The axis lost its absolute position. The control no longer knows exactly where the axis is and needs its reference (zero) set again before it can run.
Lock out the machine before reaching into it. Never bypass a door switch or interlock to clear an alarm.
If you don't have the builder's procedure, or the machine has a tool changer or pallet changer that needs exact positions, have a tech set the reference.
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The axis lost its absolute position. The control no longer knows exactly where the axis is and needs its reference (zero) set again before it can run.
Encoder backup batteries died, or were changed with the power off. Encoder cable unplugged. Servo motor or encoder replaced.
Change the encoder batteries with the control powered on. Find your machine builder's procedure for setting the reference position. Do NOT run a program until zero has been set and checked. A wrong zero can crash the machine. If you don't have the builder's procedure, or the machine has a tool changer or pallet changer that needs exact positions, have a tech set the reference.
Alarm numbers and text can differ by control model, software version and machine builder. This page is a starting point from people who have worked on these machines, not a replacement for your machine builder's manual.
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