Mach 3 CNC question

I finally got out to the Green Monster today and started feeding in soft limits, home offsets, and auto zeroes. Before setting Home
offsets, it didn't back off the limit switches. Now it is. Hurray!
I think (confirm my assumptions, please) that I'm using the upper right quadrant in the Cartesian system for positive X and Y. X home is left, Y home is toward me, Z home is top. I'm working in inches with 52" X and Y ranges, & a 5" Z range.
In the Motor Home/Softlimits config box, I have Soft Max 51.00 Soft Min 0.50 Slow Zone 1.00 Home Off. 0.50 Home Neg. Checked Auto Zero Checked Speed 20%
in X, Y, and A boxes (Home Neg Xed on A, which is slaved to X).
Pic, far left is home corner. http://tinyurl.com/com9z8g Pic, I changed Y back to mirror X http://tinyurl.com/d3kdnt8 After saving, I have lost a few thou on the DROs. Curious.
OK, I click the REF all home button and Z goes up, hits the limit switch (home) and backs off less than 1/10 turn, even though the offset is set to half inch. Then Y comes home and backs off about 0.1" with the offset also set to half an inch. Then the gantry goes left, hits the X1 (A axis) limit switch, stops, reverses 1/8" or so, and then moves left again. This is where I get a limit switch error.
Questions: Why is it erroring out? Why the small movement when the offset is listed higher in the soft limits? I had a 0.1" offset at first and it moved the same distance back off the limit switch that it has with the half inch offset entered there. Why? Is it only moving until it deactivates the switch? With X and A slaved, why isn't it locking one side and doing the other afterward?
Help, please.
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I can't help, not a Mach guy. But i would suggest you try on CNCzone.com, lot of Mach guys there.
Karl
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On Thu, 01 Nov 2012 19:21:28 -0500, Karl Townsend

Thanks, Karl. I'll do that.
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On Thu, 01 Nov 2012 20:31:46 -0700, Larry Jaques

The dedicated Mach forum might be better:
http://www.artsoftcontrols.com/forum/index.php
Mike
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On Sat, 03 Nov 2012 12:25:32 -0500, snipped-for-privacy@msn.com wrote:

Thanks, Mike. I'll ask there, too.
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