One step at a time

txtrone
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15 Nov 2020 00:58 #189413 by txtrone

Replied by txtrone on topic One step at a time

Yes, cable cut it is.

Now then... how to find which wires from cut DB25 goes to where on 7I76E. IIRC a DB25 pinout is 1-13 top row 14-25 bottom row, left to right. Where do those 1-25 need to land on 7I76E?

Thanks

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tommylight
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15 Nov 2020 01:21 #189416 by tommylight

Replied by tommylight on topic One step at a time

If you look directly into the DB25 pins on the connector you can see the numbers there.
1 output
2 step x
3 dir x
4 step y
5 dir y
6 step z
7 dir z
8 step a
9 dir a
10 input
11 input
12 input
13 input
14 output
15 input
16 output charge pump
17 output
One of the inputs is the E-stop, the others are normal inputs
One or two of the outputs go to transistors inside the G540 to drive relays
Sorry but i forgot exactly where and what the rest does, it was 7 or 8 years since i had a G540

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txtrone
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15 Nov 2020 01:42 - 15 Nov 2020 01:43 #189419 by txtrone

Replied by txtrone on topic One step at a time

tommylight wrote:
If you look directly into the DB25 pins on the connector you can see the numbers there.

Thank you tommylight!
I don't have the connector in front of me, it's at the shop. I will look more carefully tomorrow or Monday when I am down there.

Curiously, which Gecko drivers are commonly used with the 7I76E?

Last edit: 15 Nov 2020 01:43 by txtrone.

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JohnnyCNC
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15 Nov 2020 03:35 #189426 by JohnnyCNC

Replied by JohnnyCNC on topic One step at a time

I used the G203V. They are very rugged and small which is great but also expensive.

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tommylight
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15 Nov 2020 09:23 #189446 by tommylight

Replied by tommylight on topic One step at a time

I use the DS series of LAM Technologies drives, pricey but by far the best stepper drives.

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