I have a Hitachi Seiki Hicell 23. I love this machine it hasn't ran me many jobs but when it runs it runs great!

It has a Mitsubishi FR-SF FREQOL spindle drive.

I have put a new top card in the drive and also had the power supply rebuilt.

When i try to initialize the spindle it does nothing and the load meter pegs out for a few seconds until it alarms out.

The alarm on the drive is Alarm 23 (Excess Error Speed)

Any help would be greatly appreciated i've gotta get this thing going!!!

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