Messages

11

General Mach Discussion / Re: Home Off Error X Axis

« on: January 10, 2015, 01:47:31 PM »

Your conclusion proves spot on!  The newly installed drives have more settings than the Cat Detector Van has aerials.  This is our first programmable drive.  What an improvement.  We installed them with the default settings and thus the issue.  On axis has a 20:1 screw and the other is nearly direct drive. Thus one axis worked out of the box and the other did not. When the drive resolution is changed the error changes proportionally.  Both offsets are now zero-zero-zero.  Thanks again!!!        

12

General Mach Discussion / Re: Home Off Error X Axis

« on: January 02, 2015, 10:08:01 AM »

Well done!  Thank you!!  That explains everything.  The issue surfaced when we installed new drives.  The steps were well off, but our first move was to the home switch, hence the larger error.  As we dialed in the steps the number settled at about  7 times by doing the head math on the fly with larger offsets, but it wasn't exactly so we 7. 

Thank you again.  When the machine is back up I will confirm your findings and let you know.  I an confident you are correct.   

13

General Mach Discussion / Re: Home Off Error X Axis

« on: January 02, 2015, 08:25:57 AM »

I see an issue or at least from here.  Both home-offs were set to 2.180.  The 2.171 is the result of the software setting itself after homing.  The xml you have is from after the "auto" reset. The difference has been as much as 7.00"

Would please set A to 0.070 and see what occurs.  In either case both .070 and 2.180 produce a re-write to the home screen when run on two different computers.  The current error of 8 thou doesn't create a problem, but the fact that the software is creating settings worries me.

Thanks for your help!!     

14

General Mach Discussion / Re: Home Off Error X Axis

« on: January 01, 2015, 12:40:24 PM »

Attached is the xml

15

General Mach Discussion / Re: Home Off Error X Axis

« on: January 01, 2015, 05:49:22 AM »

Thanks,

It will be several hours.  The Sun isn't due in for a bit.

16

General Mach Discussion / Re: Home Off Error X Axis

« on: January 01, 2015, 05:29:08 AM »

Yes, positively.  I did make an error in reporting.  It is the A axis which has an issue.  All was fine and then we changed stepper drives.  That is when the issue surfaced.  Just t to eliminate the drive as the ghost we re-installed the old drives . . . same issue.  We swapped switches . . . same issue.  We swapped computers . . . same issue.  We rerouted the BOB . . . same issue.

The debounce was set at zero and changing it to 2000 seems to have solved the RESET issue.  However, the A axis home-off is in error and the field in the home screen changes to match the error number.  For example, if 1.00 is set and the resulting offset is .950 then the 1.00 is  automatically changed in the home screen to .950 inches

We have a number of scripts that rely on machine zero to sync with other offset movements.  Therefor it is important that all zeros actually represent zero.
   

17

General Mach Discussion / Re: Home Off Error X Axis

« on: December 31, 2014, 06:00:41 PM »

The debounce seems to have fixed the rest issue. However the home-off remains off.  Not by much, but still off.  The X axis is on, the A is off.   

18

General Mach Discussion / Re: Home Off Error X Axis

« on: December 31, 2014, 05:27:31 PM »

Thanks,

It seems to be unique to just the A axis and occurs when switches are swapped around.  It is also resetting the home-off int the home screen.  Is the reset an indication of bounce?     

19

General Mach Discussion / Home Off Error X Axis

« on: December 31, 2014, 02:44:44 AM »

When homing X with the home-off set to 0.800" the home-off sets to approximately 7.995".  Set at .010" the result is approximately 0.070"   Any ideas why?  Additionally, homing triggers a reset.  The only other axis, A, works fine.  I swapped limit switches with the same result.   

20

General Mach Discussion / Hotkey to JOG A axis

« on: December 24, 2014, 10:03:03 PM »

I am able to jog A-- with a screen button . . . no issues.  However, when I assign a hotkey or keys the jog runs continuously.  That is, when key activated the axis will runaway even when the keys are lifted.  I have tried several keys or combinations. Please explain why this occurs.  Thanks!!