The machine had a memory dump. I had to reload IPL, Restored parameters from backup. Appears everything is working except Spindle. Fault Message: "MPAS PERIPHERAL SPEED TO HIGH". This would be an OEM message not a Fanuc message. Normal operation is a command of 3000-5000 I think in/min. This equates to 60-100 RPM with 16" wheel. If I make it 25-30 spindle turns slow with no error message. Over 30 Error message. I thought I could find the parameter that looks for the value by searching the ladder. I have a list of messages and this one is assigned to address A23.1. I can see that address on the diagnostic screen turn on when we try to run the spindle. I can't find anything in ladder logic addressing that location. I have been searching for a clue for days.

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