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Date: 10/03/03 at 4:10 PM
Posted by: Richard Lamb
E-mail: rlmts@controlit.fsbusiness.co.uk

In Reply to: Siemens System 8m Sprint. G Codes (G53) posted by Richard Lamb on 10/02/03 at 10:10 AM:

Hello!

UPDATE.......

The problem seems to be related to the system ignoring G40 (I believe)

I am told (and it makes sense) that G53, when used, only disables the Zero Offsets, (G54-57)

Problem Example.......

Status before move.

Z-axis is at +400 (m/c coordinate system, reading shown at Test N812)

The operator display is showing +350 (50mm Tool Length Offset active)

Then the following MDI Auto command was executed...

G0 G53 G90 G40 Z 410.000

(Move Z in rapid (G0), use m/c coordinates (G53), use absolute moves (G90), cancel tool offsets (G40) Move to +410, a +10mm move)

I believe the axis should have moved 10mm in the +ve direction BUT it moved 60mm +ve!

Final axis readings were...
N812 = +460
Op display = +410

So, am I right in assuming G40 (& G53) should have set the position register to m/c coordinate values, then moved +10mm (showing 410mm in N812)?

You think you're confused! It's taken me 20 minutes to type this! :)

Please comment on this, if it's only to say "good luck mate! (just nice to know someone actually reads my post!)

Have a nice day,
Richard.
rlmts@controlit.fsbusiness.co.uk

Follow Ups:

  Re: Siemens System 8m Sprint. G Codes (G53) rlmts   Posted at: 10/09/03 (0)

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