Tim Ganz
Member
I have a baldor brake motor VMB3546
http://www.baldor.com/products/detail.asp?1=1&catalog=VBM3546&product=AC+Motors&family=Brake%7Cvw%5FACMotors%5FBrakeMotor&winding=34WGX269&rating=40CMB%2DCONT
It seems we lose the brake coil on one of these every couple months and I can't figure out why and it is only on 1 machine. All the other machines have the same motor and no problems.
This brake is wired 120 ac and is controlled by the slc plc. We can't use it wired into the motor because the motor is on a drive and if the brake is powered from the windings it comes on when we don't want it to.
The motor shop converts these for us to bring the brake coil wires out to the terminal box but how is this possible? It is a 460/230 volt motor and the brake coil is 120 vac and from the factory it is connected to the motor windings? How does that work?
What could cause us to lose this coil so often? Every time I check the voltage it is 115 and the motor ansd brake are in a cool place.
Does anyone on else make a motor with brake like this that has external power to the brake that you can buy from factory without it being a special modification from the motor shop like we have? I have been looking but no joy so far.
http://www.baldor.com/products/detail.asp?1=1&catalog=VBM3546&product=AC+Motors&family=Brake%7Cvw%5FACMotors%5FBrakeMotor&winding=34WGX269&rating=40CMB%2DCONT
It seems we lose the brake coil on one of these every couple months and I can't figure out why and it is only on 1 machine. All the other machines have the same motor and no problems.
This brake is wired 120 ac and is controlled by the slc plc. We can't use it wired into the motor because the motor is on a drive and if the brake is powered from the windings it comes on when we don't want it to.
The motor shop converts these for us to bring the brake coil wires out to the terminal box but how is this possible? It is a 460/230 volt motor and the brake coil is 120 vac and from the factory it is connected to the motor windings? How does that work?
What could cause us to lose this coil so often? Every time I check the voltage it is 115 and the motor ansd brake are in a cool place.
Does anyone on else make a motor with brake like this that has external power to the brake that you can buy from factory without it being a special modification from the motor shop like we have? I have been looking but no joy so far.