MV Junior Spindle Speed way too Slow

[nordlichtFanuc]

Hi Folks!

I'm working on a project to revive a Mori Seiki MV Junior VMC with a Fanuc 10M Controller for quite a while now..

Great progress has been made, as the machine (axes) and controller are now working almost entirerly.
One problem stillt troubles me:

When Im in MDI mode und try to run the spindle, just for testing (without tool) with:
S1000 M03;
then the spindle turns ON, but it turns only very slow! The movement also seems a bit irregular and not smooth.

That means around 4 RPM or so. If I command an other RPM, the speed does not seem to adjust.

If I turn the spindle off again and try to spin it by hand, it turns freely without any problems.

The machine does not report any alarm or problem whatsoever.

Previously, I have been resetting the machine completly, meaning entering all parameters, Options, Timers, Keeprelays by hand.
Can this spindle behavior be the result of a wrong parameter?

Thanks for any advice!

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[nordlichtFanuc]

Hi Again

I found the problem.

It was an incorrect setting of the PMC Data Table.
The max. spindle speed is defined there.