The Shop > Electronics & IC Programing

Stepper motor has no torque

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vtsteam:
Apologies for missing that.  :wack:

sparky961:
Chris:

Are you able to temporarily hook the inputs to the stepper driver to a slower clock source, like switches, so that you can manually run through each of the phases?  I agree it sounds like under current, but odd that it worked and now it doesn't.  Something has to have changed, you just haven't found out what it is yet. :)

I'd double check the power supply to make sure you're getting the voltage you expect, and you might be able to hook an ammeter in series with the motor coil to see what sort of current you're getting there.

I would double and triple check your motor connection, because that's the easiest thing to get wrong.

philf:
Chris,

If the driver is one of the 4.5A 50V type make sure  the digiswitches to set the current and microsteps are set correctly.

For some unknown reason "0" on the digiswitch means "ON" and "1" means "OFF"!

When I set my CNC up it took me a good while to work out what was going on.

Good luck.

Phil.

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