Fanuc Alarm 359 THE G28 WAS INSTRUCTED IN WITH THE REF POS NOT FIXED IN COMP MODE (T Series)

Fanuc Alarm 359 THE G28 WAS INSTRUCTED IN WITH THE REF POS NOT FIXED IN COMP MODE (T Series)
Fanuc Alarm Description
This error occurred when G28 was specified to the composite axis during composite control, but a reference position is not set to the other part of the composition.