Retrofitting a TOS FNG 32 NC

I have been tuning all axis now, they move really smooth and its a nice feeling to see that the machine is finally moving again.

I've been trying to get the spindle running. I see that there is some values you can change inside LinuxCNC calibration, similar to the XYZ. Don't know how to set those up correctly. I dont get the spindle to run at all. Is there something more then to press F9/F10 in Axis?

I have wired from pin 7 -> Enable on Mesa -> 63,64 & 80. My +-10V is beteween 56 & 14.

 

After F9/F10, F11 and F12 will raise or lower the speed.

I got the spindle running.
I changed P value from 0 -> 50 and the spindle is running. But very slow.
I can measure that I have 10V between 56 & 14. So it should be at max speed right?

What function does LF and EP1 have?

 

Have you checked the motor field voltage. Is it supplied by the siemens drive?

I'm not sure why but the field voltage is not supplied by the Siemens drive, I do have about 60V on the "ANKER" circuit
pin 123, 124, 31, 32 is connected like the schedule.

Does the spindle motor have a tachometer? Possibly it is running in closed-loop velocity mode and there is a problem with the feedback?