FRIENDS,
WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER.
RECENTLY WE HAD SERVO ALARM 401 AND WE HAVE REPAIRED THE DRIVE.
AFTER REFERENCING WE SWITCHED ON THE AUTO CYCLE AND AGAIN WE GOT THE ERROR 401.
THE DRIVE IS REPAIRED FOR ALMOST 3 TIMES.
THE PRDY LED IS JUST COMING AND THEN EXTINGUISHED.THE MAGNETIC CONTACTOR IS NOT HOLDING.THERE ARE NO OTHER ALARM LED'S LIT.
WHAT COULD BE THE PROBLEM AND ANY SOLUTIONS.
THANKS,
CHANDRU