Re: [CAD_CAM_EDM_DRO] Re: servo brake problem

At 01:31 AM 8/28/2004, you wrote:

>Still got the axis motor wiring problem in another
>question to tackle. I think I will eventually get to the bottom of
>all this with a lot of help from my new CAD-CAM-EDM-DRO friends!

A bit more info that I just remembered.

The times the spindle motor would not turn - when the air pressure was low
or non existent - the inverter that runs the spindle motor tripped
out. Since the inverter and the controller including the solenoids are on
completely different circuits, that tells me the brake is ENGAGED, thus
causing the inverter to overload when trying to start the spindle motor
causing it to trip.

If this is true, the fact that your spindle motor will not turn may have
nothing to do with the motor or the wiring. Getting the brake disengaged
may solve all your problems.

Another guess - is it possible the brake solenoid is wired backwards so it
provides air pressure when the pressure is supposed to be released?

Doug C.
Houston, Tex.