Wiring Leadshine DM856 Ena+ and ENA- -> Mesa 7i76e

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7 months 3 weeks ago #343934 by DerKlotz
Hi,
I would like to connect the ena+ and ena- inputs of my Leadshine DM856 to a Mesa 7i76e. If you look at the attachments... which circuit should I use? I would say PNP... but is that correct?

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7 months 3 weeks ago #343942 by PCW
Yes, the PNP connection is correct for a 7I76E field output (With appropriate series resistor)

Note the the default operational mode for Step drive enable inputs is disabled when powered
(which is the exact opposite of the desired operation from a safety standpoint)

Unless you can reverse this (so they are enabled when the enable input is powered)
You may need to add an external relay.

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7 months 3 weeks ago #343986 by DerKlotz
Great and thanks for your quick replay. I´ll check

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7 months 2 weeks ago #344130 by DerKlotz
Please see attached file

Can i just use one Mesa output for all three driver or do i have to use three outputs? One for each driver. In the LinuxCNC configuration i can set enable for x, y and z axis.

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7 months 2 weeks ago #344136 by Clive S
Yes you can use just one output

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7 months 2 weeks ago #344138 by DerKlotz
Perfect, thanks

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7 months 2 weeks ago #344143 by PCW
One output, but three resistors...

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7 months 2 weeks ago #344169 by DerKlotz
Great, i forgot to ask that

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7 months 2 weeks ago #344359 by DerKlotz
Here is my working  wiring diagram

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