Bridgeport Series 1 MDI Conversion

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tblough
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Re: Bridgeport Series 1 MDI Conversion

Post by tblough »

Manual or digital switch that sinks when you want reverse.
Cheers,

Tom
Confidence is the feeling you have before you fully understand the situation.
I have CDO. It's like OCD, but the letters are where they should be.

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DICKEYBIRD
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Re: Bridgeport Series 1 MDI Conversion

Post by DICKEYBIRD »

tblough wrote: ↑Tue Apr 30, 2019 11:25 am Z is the same as index so you should be good there. As for converting 0-10V and direction into +-10V, I haven't tired this but it should work:
opamp.gif
SW is your reverse signal. When it is open, the op amp has a gain of 1. When it is closed, the gain is -1. You will need to supply the op amp with at least +-12 volts (+-36 max).
Wow, Thanks Tom! That's exactly what I need to use my AMC BE25A0AC servo drive with the PM DC spindle motor on my lathe! :D
Milton in Collierville, TN

"Accuracy is the sum total of your compensating mistakes."

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