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Need help setting up parallel port on new build

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19 Aug 2021 08:06 #218122 by phillc54
Just one is enough for testing.

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19 Aug 2021 10:50 #218128 by CNCApples
Sorry, the photos didn't attach the photo in my previous reply. 
here is a photo of my wiring diagram
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19 Aug 2021 12:43 #218138 by phillc54
Try it with the wire removed from P14.

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20 Aug 2021 01:25 #218193 by CNCApples
So I tried removing ENA- from pin 14, 
removing ENA+ from PC5V,
Removing one and not the other, removing both etc with no success yet. 

At one point, each time I clicked on "test this axis" the red led on the BOB would light up, I have not been able to recreate this since I powered down to make some connection changes. 

Ive backed off a bit since the beginning and am just trying to get one axis moving before I connect more but have hit a wall. 

Does my wiring for a single motor look ok? There's 2 photos, one with the ENA +/- connected and one without (I've tried other combinations as well)

I can't say I know much about Linux but could the pins be addressed wrong on the parallel port card? How would I go about seeing this?

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20 Aug 2021 01:30 #218194 by CNCApples
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20 Aug 2021 01:35 #218195 by CNCApples
Apologies for the terrible image quality, I realised one of my previous photos didn't include the driver pinout labels
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20 Aug 2021 04:35 - 20 Aug 2021 04:35 #218201 by phillc54
I use the opposite polarity to you, I don't know if that makes any difference.
This is how my X axis is connected.
P2 > PUL+
P3 > DIR+
PCGND > PUL- & DIR-

Also don't forget to connect the USB port as well as the power supply.
Last edit: 20 Aug 2021 04:35 by phillc54.

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20 Aug 2021 04:39 #218202 by CNCApples
Cheers for that, try wire it up that way and see how we get on.
Are both your enable pins not connected?

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20 Aug 2021 04:44 #218204 by phillc54
They are but only because I use them to switch between a lathe config and a mill config. If I didn't do that then I would leave them disconnected permanently.

Have you also checked that the motor windings are correct. If you disconnect the wires from the driver then the motor should spin by hand easily, if you short the red and blue together it should be hard to move and also if you short the green and black it should be hard to move.

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20 Aug 2021 06:35 #218207 by CNCApples
The motor spins freely when connected to the drive already. I used a multimeter to check continuity and can confirm the two pairs are correct, red/blue and green/black.

I Have wired the motor with PUL+ on pin2 and DIR+ on pin like in your setup but still no motion. 
Instead when I attempt to test the X axis there is a clicking sound and the red relay light on the BOB turns on. Light turns off after I close the test window.

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