Motion Control and Motor Drives

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inhibit out always active

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On axis 2 of a UMI-7764, the inhibit out is constantly active, disabling the third party motor driver.  I have axis 1 configured identically in MAX and it works just fine with identical hardware.  I have traced the problem back to at least the UMI if not the PCI-7330 controller card.  INHOUT2 is constantly on -- either high or low depending on the polarity switch.  MAX will still allow the UMI to generate control pulses for Step and Direction so long as it thinks that the axis is not killed.  I am not using encoders or limit switches at the moment.

 

Settings are as follows:

Enabled, no feedback, step & direction output, active high polarity, disabled limit filters and switches, disabled software limits, and enabled inhibit out active high.

 

Axis 1 has the same settings, and works fine.

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As an addendum, I used a second UMI-7764 which was tested with a second axis on another machine and am getting the same result as I got with my original UMI.  Looks like the problem is upstream, perhaps in the PCI-7330.
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Solution
Accepted by topic author awheelock
Problem was cable had a pin that wasn't connecting... solved.
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