This is an old question from a post that I made many months ago, but I still have the problem. I'm hoping that by posting some additional information, I can get some help getting me off of top-dead-center with respect to troubleshooting the issue.
This is a KM3-P, runing Ultimax 2, version 7.24.
The basic problem is that I cannot run the spindle through software control. Whenever I command the spindle on, I get a "SERVO ERROR" either instantly, or withing a second or two. The spindle will start to rotate, but never gets up to speed before the error occurs.
I've read through the manual, particularly the Theory of Operation document for the spindle speed controller and have found the following to be true:
1. I can run the spindle manually either CC or CCW, by depressing the appropriate contactor in the power cabinet. I can also increase/decrease the speed using contactors K1 & K2, or the manual adjustment knob on the front (but only as long as my finger is on the spindle contactor).
2. I can detect the pulse from the proximity sensor on Pin 27 of the Voltak board and the frequency of pulses appears to vary appropriately with increasing or decreasing speed.
3. By programming a certain RPM for the spindle through the console, I can manually manipulate the contactors to get the red LED (H2) to illuminate--indicating that the spindle is running at the programmed RPM.
4. The only other light on the Voltak board is the green LED (H1) that seems to just be a power-on indicator.
I really can't proceed with the spindle adjustment procedure described in the document because I can't get the spindle to stay on by itself.
Any troubleshooting help or advice would be MUCH appreciated!