AOC= armature overcurrent,probably caused by carbon dust build up in the comm area of the motor.I have that make of motor on a few machines and it`s prone to it.You should at least once a year check brush length,the condition of the comm and clean out the motor and you will get years without problems out of them.
I can`t remember if Control Techniques who make Mentors website`s address is .com or co.uk but a google will find it.You can download a manual from there but may have to register first.
Likewise Motori have a website which might have maintenance sheets on it,if not download something from SEM which will give you the basics of dc motor maintenance.Blower motors often get quite noisy due to the hours they are actually running,cheap and simple to fix with a pair of new bearings.Fit quality bearings rather than cheap no name types.
If you`re stuck with downloading the Mentor manual,I have it on disc somewhere.
Lucky you have Mentor drives,a motor flashover on an old style drive usually took the drive with it.The Mentors shut down before any damage is done to the drive.
Mark.  |