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NOT HOMING CORRECTLY
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Topic: NOT HOMING CORRECTLY (Read 3793 times)
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inivator
102
NOT HOMING CORRECTLY
«
on:
August 11, 2011, 11:21:02 AM »
FOUR AXIS PROBOTIX, Y SLAVED TO A. ON THE INPUT SIGNALS, AS LONG AS I MAKE A++ ACTIVE HIGH, I CAN JOG, MOVE WITH MDI, AND FOLLOW G CODE. WHEN THE SYSTEM HOMES TO X, IT WILL ACTIVATE THE E STOP, BUT WILL NOT MOVE OFF HOME LSWITCH OR "0".
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Hood
25,835
Carnoustie, Scotland
Re: NOT HOMING CORRECTLY
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Reply #1 on:
August 11, 2011, 11:53:16 AM »
Sounds like noise issue but if you attach your xml your config can be checked in case its a wrong setting.
Hood
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BR549
6,965
Re: NOT HOMING CORRECTLY
«
Reply #2 on:
August 11, 2011, 12:08:57 PM »
That may be the old switch/ramp problem. as the X moves off the Home switch it momentarily resets and tells MACH to stop. It the process of Mach stopping the switch tension relaxes and the switch reopens. BUT now Mach thinks it is a limit switch and Estops the system.
Sometimes you will have to do the reset/ jog off TWICE to get it to move far enought off the switch to behave.
The probelm is the overall Ramping Rate to close the switch is too slow and makes the switching process unstable. Sometimes adding in some more debounce will cure it.
Just a thought(;-)TP
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inivator
102
Re: NOT HOMING CORRECTLY
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Reply #3 on:
August 11, 2011, 12:09:24 PM »
Hope this works.
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inivator
102
Re: NOT HOMING CORRECTLY
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Reply #4 on:
August 11, 2011, 12:51:16 PM »
Here is the HML file
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inivator
102
Re: NOT HOMING CORRECTLY
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Reply #5 on:
August 11, 2011, 01:45:12 PM »
What should the Debounce numbers be set at?
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Hood
25,835
Carnoustie, Scotland
Re: NOT HOMING CORRECTLY
«
Reply #6 on:
August 11, 2011, 01:47:42 PM »
I notice you dont have the switch for A set as a Home switch, that may be your problem?
Debounce Interval is normally tried at 2000 first and reduce as much as possible if it helps.
Hood
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inivator
102
Re: NOT HOMING CORRECTLY
«
Reply #7 on:
August 11, 2011, 02:05:33 PM »
Thanks, I'll try it..
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