Hello, we have an AMADA Europa 255 (coordinate punching) machine, Fanuc CNC

The machine was not turned on for a week. Today the following errors popped up:

300 APC Alarm C AXIS NEED ZRN
300 APC Alarm T AXIS NEED ZRN
Please tell me the correct method for zeroing the C and T axes.
If the position is incorrect, repeat the procedure.