Driver On/Off

[Tazdingo]

Hi im in the phase of building a cnc machine and i have few things that are messing with me. It's not a big deal but i could not see anywhere..if you plug your machine all the steppers are going to hold/stuck my leadscew driven machine and let's say i need to move my X manually (i have dual shaft motors) i want to turn on/off my motors individually with a separate rotary knob for every motor.
What is the most logical way to turn off a motor: cut the Power V+36 or Signal V+5 (to the driver) hmm?

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[john-100]

which stepper drivers are you using ?

many have 3 inputs step , direction and enable
the enable being unusual in being a negative logic input so the drive is enabled with no enable input !

if you have a drive with opto-isolated inputs like this for example


some CNC machines don't have the stepper driver enable inputs connected
making it easy to add switches to disable a driver

connecting +5V via a switch to the + enable input and 0V / ground to the - enable input
will disable the drive
making it possible you to manualy turn the motor with the power on

John

[CitizenOfDreams]

What is the most logical way to turn off a motor: cut the Power V+36 or Signal V+5 (to the driver) hmm?

Probably the best way would be to use the ENABLE signal if your stepper driver has it (most of them do).

[Tazdingo]

im using DM542A i have wire them like this: Pulse5+ and Direction5+ are feed from my 5v power supply, pulse and direction negative are connected to pin2 and pin3 on the bob. I was following the diagram from this picturehttps://www.cnczone.com/forums/attac...1&d=1558634485. And on this picture is the testing wiring https://www.cnczone.com/forums/attac...1&d=1558634485 it works like this :/

[john-100]

quick diagram to dissable one axis using the stepper driver enable inputs



John

[Tazdingo]

Thanks for your time John, you saved me a lot of time and nerves ??