Tom wrote: > Hello all, > > I am sizing up a Kitamura Mycenter 0 for a potential EMC2 retrofit. > > The Z axis servo (Fanuc red cap 5S/3000) is equipped with the brake option > and the brake is stuck. There are 2 leads supplying 112vdc to the brake > connector on the servo, but the brake refuses to unlock. > > Has anyone ever had one of these servos apart? Do you know if the brake > mechanism is a disk clutch or some sort of retractable pin and socket? > Could it have been damaged in transit? > I am pretty sure it is some form of friction brake, either a disc or band. Probably some coolant got inside and rusted it. I think the brake is on the rear of the motor, underneath the encoder, and therefore to take it all apart you need to remove the encoder. Then, you would need to realign the commutation tracks of the encoder to the motor's poles.
One thing to try is to apply power to the brake and try to rock the shaft with a large wrench. This might rock the brake pads enough to break the rust. If the brake is on the front of the motor, it will be a lot easier to open it up and repair. Jon ------------------------------------------------------------------------------ Increase Visibility of Your 3D Game App & Earn a Chance To Win $500! Tap into the largest installed PC base & get more eyes on your game by optimizing for Intel(R) Graphics Technology. Get started today with the Intel(R) Software Partner Program. Five $500 cash prizes are up for grabs. http://p.sf.net/sfu/intelisp-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
