ALARM 401 REPEATING

[CHANDRU]

FRIENDS,

WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER.

RECENTLYWE 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

[guhl]

Originally Posted by CHANDRU FRIENDS, WE HAVE ONE MORI SEIKI LATHE WITH FANUC 6T CONTROLLER. RECENTLYWE 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

Sorry for banality
May be auxilary contact trouble on MCC?

[udrııl79]

intersting....

[fanucman]

100 vac is being turned off.. check the cause first... pin 3,4

[udrııl79]

401 İS İNTERSTING ALARM AND PROBLEM.

ARE YOU LOOK AT THE FANS SİSTEM.?

OUR MACHINE FANUC O T - C,

WE HAVE SEEN THİS PROBLEM BEFORE MYCUSTOMER ,
WE HAVE CLEANED THE FANS AND WE CHANGE THE FUSE, PROBLEM HAVE SOLVED

THESE FANS OVER THE FANUC DRIWER SISTEM.

I HATE 401,,