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SmartBOB controllers and dedicated accessories / Re: PMDX 424 E-Stop & Fault actions... similar to PMDX 126?
« on: April 08, 2017, 03:16:06 PM »
Great explanation, thanks Steve! It make sense for safety, and it seems like PMDX makes E-Stop and /Fault connections as straight forward as possible.
I just need a little logic to invert the upside-down Fault signal from ClearPath motors, and fix the issue that ClearPath also asserts Fault any time a motor is not enabled (which would keep PMDX & Mach in E-Stop forever).
Kudos: This would be more complicated without PMDX E-stop/Fault 50ms filtering? Otherwise sequential logic would be needed to eliminate ?runt? Fault pulses due to the delay between Enable and HLFB signals.
I??ll clean up my schematic for this circuit and post it? may be useful to somebody else using ClearPath servos.
Ray
I just need a little logic to invert the upside-down Fault signal from ClearPath motors, and fix the issue that ClearPath also asserts Fault any time a motor is not enabled (which would keep PMDX & Mach in E-Stop forever).
Kudos: This would be more complicated without PMDX E-stop/Fault 50ms filtering? Otherwise sequential logic would be needed to eliminate ?runt? Fault pulses due to the delay between Enable and HLFB signals.
I??ll clean up my schematic for this circuit and post it? may be useful to somebody else using ClearPath servos.
Ray