Z axis

phillc54
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6 years 5 months ago #167590 by phillc54

Replied by phillc54 on topic Z axis

Just try plugging in the correct numbers then change the scale and see if you can get the display down to 0v.

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Plasmaguy
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6 years 5 months ago #167594 by Plasmaguy

Replied by Plasmaguy on topic Z axis

You should read 0v at rest.

What issue might cause it to read other than 0?

At rest mine fluctuates 148-150v...while cutting it's 278ish ...11ga @ 100ipm, .06 cut height.

45XP book voltage calls for 128v so the THCAD10 is right there.

I ran the calibration calc with values ,

50:1 voltage divider setting

F/32 jumper on THCAD10

935.8 & 121

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phillc54
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6 years 5 months ago #167596 by phillc54

Replied by phillc54 on topic Z axis

What happens if you negate the offset? -3781.25

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Plasmaguy
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6 years 5 months ago #167599 by Plasmaguy

Replied by Plasmaguy on topic Z axis

Okay thanks.. that sent it to 0 / -0.

PlasmaC is very impressive! I'm loving all of the options and layout. This will make my days much better.

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phillc54
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6 years 5 months ago #167600 by phillc54

Replied by phillc54 on topic Z axis

Thanks, I hope you enjoy it.

You most probably have:

Code:

setp hm2_7i76e.0.encoder.00.scale 1

in your halfile, it should be:

Code:

setp hm2_7i76e.0.encoder.00.scale -1

it is the ONLY -1 in there, but if you are happy to have your offset at -3781.25 then you can leave it as it is.

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motal2004
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6 years 5 months ago #167686 by motal2004

Replied by motal2004 on topic Z axis

phillc54 wrote: Just try plugging in the correct numbers then change the scale and see if you can get the display down to 0v.

When I do this I run number all the way down to 0 so the voltage reads 0 and I’m back to nothing square 1.

I’m at a lost with the Mesa thcad—10 board

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phillc54
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6 years 5 months ago #167687 by phillc54

Replied by phillc54 on topic Z axis

Strange, Your numbers are correct and the hal files look good, the only thing I can think of is the divider is not really 50:1

A -73V variation from what it should be is a lot.

Have you checked that the THCAD jumper is definitely F/32?

EDIT: definitely a THCAD-10?

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motal2004
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6 years 5 months ago #167689 by motal2004

Replied by motal2004 on topic Z axis

Here a couple pictures, to make sure

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motal2004
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6 years 5 months ago #167690 by motal2004

Replied by motal2004 on topic Z axis

My plasma machine has 3 out put for voltage.
1/50, 1/16 and raw arc voltage with 100kohm resistors in series.

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motal2004
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6 years 5 months ago #167691 by motal2004

Replied by motal2004 on topic Z axis

And I just triple check my wiring and I Am connected to the right pin 4 and 6 for the 1/50

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