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PMAC-PC(1) Open loop spindle


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I'm looking for an app note, or example of implementing open loop control of spindle for a bench-top wood router. The 4th axis is available for that use. The spindle is rated for ~20,000 RPM, but has no encoder, or tach. I believe the spindle drive gets low voltage (0-10?) for speed command from a pot on its drive cabinet.


I would like to be able to issue an 'S1500' etc cmd for speed, and an M03/M04/M05 to turn it on & off.


The card is PMAC Universal Lite w/DPR on board, using PMAC-NC32 v2.36(1), WinXP SP3.




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