If the actual spindle speed differs from the commanded spindle speed by 20 percent or more, it will not feed. (the override is irrelevant).
If you command 1000 RPM, what does the display show as the actual spindle speed?
If you lose the encoder, you should get a "spindle not up to speed in time."
Is the encoder belt slipping (teeth missing)?
George
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)
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