I cant seem to find documentation for this little servo. Can anyone please help point me in the right direction or tell me if there is an equivlent part# I should be researching.
This is an obsolete custom servo motor, originally designed in early 90s. The NB was the predecessor to the MPM series motors.
We'd recommend upgrading to our newer servo motors. We've many newer feedback options but still have resolvers available. Absolute encoders are now standard option that offer higher resolution and higher accuracy and we also have standard incremental encoders. The drives from that time would also not be repairable. We recommend discussing the machine requirements through your local Parker Automation Technology Center (ATC). Our ATCs have factory trained automation engineers on staff that can take a look at the entire machine and identify best path forward.
Our ATCs are listed on our How to Buy site on parkermotion.com:
This custom motor is obsolete and no longer available. It was a custom based on the predecessor to the MPM662 series motors. Do you have a spare motor to try or spare cables?
What is the drive/controller driving this motor? Is there a fault on that drive/controller and what is the fault? Are you seeing the resolver feedback position change if you have the motor disabled and turn the motor by hand? If you disconnect the load from the motor and spin the motor by hand, does it feel smooth or perhaps the bearings are damaged? If you check the resistance between the 3 motor phases (disconnected from the drive), and the resistance between each phase and the ground wire, is the resistance the same between 3 motor phases or is one significantly less than the other? The resistance between the phase and ground should be open. If it's shorted, then the motor would need to be replaced.