Author Topic: PMDX 122 stepper driver wire connections  (Read 239 times)

a64664137

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PMDX 122 stepper driver wire connections
« on: January 18, 2019, 04:57:37 AM »
Hi all,
         I have a PMDX 122 and a stepper motor driver with the following wiring

I had the ENB+ connected to J6 Fault terminal and ENB- to GND, is ths correct?

thanks,


12strings

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Re: PMDX 122 stepper driver wire connections
« Reply #1 on: January 19, 2019, 01:25:05 AM »
The Fault terminal on the PMDX-122 is an INPUT to the PMDX-122.  Likewise, the ENA+/ENA- terminals on your driver are most likely INPUTS to the driver (read your manual to be sure).  So that won't do anything useful.

The PMDX-122 Fault input is meant to be connected to a normally open EStop switch (as opposed to the more standard normally closed EStop that would be connected to the EStop terminal), or to motor drivers that have a fault OUTPUT signal.

See the PMDX FAQ "Should I connect the 'Enable' input on my motor drivers?" for their recommendation of what to do with the enable terminals.

https://faq.pmdx.com/index.php?solution_id=1008


ClementM

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Re: PMDX 122 stepper driver wire connections
« Reply #2 on: May 17, 2019, 08:29:37 AM »
Are there any alternatives to connecting the PMDX-122 Fault Input than the standard way?

12strings

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Re: PMDX 122 stepper driver wire connections
« Reply #3 on: May 21, 2019, 11:43:11 PM »
That is a pretty vague question.  I would guess the answer is "probably, maybe"  What do you wish to do with the fault input?

Surfmaster

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Re: PMDX 122 stepper driver wire connections
« Reply #4 on: June 04, 2019, 03:56:21 AM »
I am not too clear with what you are saying, but I believe there is a standard way to get this done.