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Author Topic: Help, motors only humming but don't rotate  (Read 7477 times)

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Offline TonyP

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Re: Help, motors only humming but don't rotate
« Reply #10 on: December 26, 2007, 12:37:05 PM »
Ah, fine, I hadn't looked at it myself.

Tony
Re: Help, motors only humming but don't rotate
« Reply #11 on: December 26, 2007, 03:30:08 PM »
I've measured again with another digital meter and i'm getting 138 mV by movement and 90 mV when stopped.
Where can i change the step pulse timing? Is it in "Config" "Motor Tuning" and then by "Step pulse"?

Offline Hood

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Re: Help, motors only humming but don't rotate
« Reply #12 on: December 26, 2007, 04:46:44 PM »
Where can i change the step pulse timing? Is it in "Config" "Motor Tuning" and then by "Step pulse"?

yes
Re: Help, motors only humming but don't rotate
« Reply #13 on: December 26, 2007, 04:55:36 PM »
I changed it to different values but without any result.
What else can it be?

Arjan

Offline Hood

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Re: Help, motors only humming but don't rotate
« Reply #14 on: December 26, 2007, 04:59:08 PM »
Do your drives require the enable?
What drives are they?

Hood
Re: Help, motors only humming but don't rotate
« Reply #15 on: December 26, 2007, 05:03:21 PM »
It are Linisteppers and as far as I know they don't require enable.
Otherwise, does anybody know a good adres (website) for other drives?

Arjan

Offline Hood

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Re: Help, motors only humming but don't rotate
« Reply #16 on: December 26, 2007, 07:12:21 PM »
Do you have anything connected to Pin 1 on your port? it could just be that that is giving you problems.
Not familiar with your drives at all so cant advise on them but maybe the guys that make them can advise on how to test.
Are you using a breakout board? if yes have you checked to see the Step/Dir is getting through it?
Lastly if you are looking for drives have a look through the links above (from Artsoft tab) But if your drives were working before I wouldnt rush out and replace them, well that is unless you were unhappy with them in some way.

Hood
Re: Help, motors only humming but don't rotate
« Reply #17 on: December 27, 2007, 01:30:33 AM »
I'm using a breakoutboard and on this pin 1 is connected to a relay (which is not powered because i don't use it).

Offline Hood

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Re: Help, motors only humming but don't rotate
« Reply #18 on: December 27, 2007, 03:24:45 AM »
Have you checked to see if the Step and Dir signals are getting through the breakout?
If you are not using the relay disable your Enable signals in Mach, also disable output 1 as you have it enabled but have it set to Pin0.
 I am wondering however what this relay is for? if you have it set to pin 1 and all three enable signals are set to pin 1 then maybe it is meant to be switching an enable signal or even an estop circuit?
Hood

Offline Chip

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Re: Help, motors only humming but don't rotate
« Reply #19 on: December 27, 2007, 01:46:56 PM »
Hi, Exester

Are you sure your step & dir pin's are set properly, In Ports & Pins, Motor Outputs, Try swapping one of your axises from 3, 2 to 2, 3.

Some Stepper controls are sensitive to Dir, Step "Low Actives", Try it X then with Checked, Remember the "Apply" after changing.

Chip