large heavy gantrys..that need brakes on motors

[eloid]

I seen servo motors on cnc that have brakes to slow down motors when require for heavy loads ie gantrys and require stops

anyone using them .. what your set up like?

[Al_The_Man]

I have never yet seen a brake on a servo motor that was intended to slow it down, the common use is to prevent back feeding when servo is off, as in a heavy vertical axis etc.
Al.

[gt3073b]

+1

The brake on a servo motor is to support a vertical load when the power is off. The brakes are not proportional like the brakes on a car. They are magnetically released like the emergency brakes on a train. They also are typically rated to survive only a few dozen revolutions before they burn up and fail in the safe (locked rotor) position.

Bryan.