Alright so I've got this Multiplex 610 running T-Plus, with a pitch feed gantry.

The issue I'm having is that I've got a "22 FEEDBACK SYSTEM ERROR" on the alarm diagnosis screen. Looking in the back at the spindle drives, there is one that does not have it's 8 segment display lit up.

So, easy right? Replace the drive, no more issues.

Not quite, we had the drive rebuilt a few weeks ago, and upon re-installation, bam still no 8 segment display. After a few resets the drive suddenly came to life and was operational, the error message went away and all was right in the world.

Well now it's back and I'm still lost as ever. Any ideas what could be causing this? Much appreciated.

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