[muda]

My configuration is dm556 + ebay pwm controller. I am trying to get away without microcontroler for my project.
The question is : is it awailable to incorporate micro switch stop in this configuration that would stop motion when pressed and automatically continues when released.

One option would be to cut power for controller . But may be there is more elegant solution ?

[Jim Dawson]

That would work fine.

You would only need to connect the switch to the enable input.

Are you sure you want to use a PWM controller? Normal for a stepper drive would be a stepper speed controller some of these also have an enable input that you could connect to your switch.
An example, not a recommendation: https://www.ebay.com/itm/38375049481...4AAOSwZVlXqa9~

[muda]

Yes I am using one like that. But they used " PWM" in naming , so did I.

So I need to interupt ENABLE line between controller and driver to stop motion ?

[Jim Dawson]

I think if you connect the Enable + to the Enable - on the drive, it will disable the drive. Yes, a micro switch will work fine. The current is very low.

Or, there may be an enable on the controller that you can connect to. I would need to see the exact controller to know if that will work.

[muda]

this controller
https://www.aliexpress.com/item/3296...27424c4dLHc3f4

[Jim Dawson]

EN=ENA=FREE Enable
PUL=PULS=CLK Pulse
DIR=CW=CWW Direction

Common anode Connection method (B)

EN+ PUL+ DIR+ connect together to com+.
EN- connect EN
PUL- connect CLK
DIR- connect DIR

Common cathode Connection method (B)
EN- PUL- DIR- connect together to com-.
EN+ connect EN
PUL+ connect CLK
DIR+ connect DIR


There is the connection for the micro switch.

[muda]

Like that ?

[Jim Dawson]

I think that might work. Try it and confirm. You won't damage anything by wiring it that way even if it does not work in that configuration.

[muda]

Thank you for assitance Mr Jim
IT will take time as parts just ordered but I hope it will work that way.

[Jim Dawson]

My pleasure. It will work some way, but most likely your drawing will work.

[Toinvd]

Most of these drives will have the output enabled ( working ) when the EN is not active.
If you connect the -EN to Gnd and the +EN to +5V the drive will most probably be disabled ( you can easy rotate it by hand )