Help with old stepper drives - DynaMechtronics

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05 Apr 2016 21:57 #72813 by jj89074
Hello,

I'm beginning work on my Dyna Mechtronics DM3000H lathe. I'd like to use the old stepper drives (for now), but I'm having trouble figuring out one of the pin-outs. Seven of eight are straight-forward (2 PWR, 2 GND, +5VDC, Step, Direction), but the last one is labeled HERE. I would guess it's either an enable pin or common return. It's probably an acronym, but it's a puzzle to me. Attached is the diagram.

Thoughts?
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06 Apr 2016 10:34 #72837 by cncbasher
i'd go with an enable

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06 Apr 2016 23:57 #72881 by jj89074
cncbasher - Thanks, I think you're right. The drives work fine with the HERE line NOT connected.

I guess they are enabled until grounded?

Now I need to play around with tuning. I haven't found a thing on the WEB.

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