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Author Topic: z steper trouble  (Read 12180 times)

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Re: z steper trouble
« Reply #50 on: January 01, 2013, 12:28:14 PM »
The problem exists only when you change directions and only in Z. If you comand G0 Z 1.00 it will move right. Comand Z0.000 it will move on the DRO to Z.9999 and stop but the machine keeps running  and nothing on the key board stops it. I  have to use the E-Stop to stop it. Reset the machine and it will finish that comand and will run in that direction. Change directions and its a repeat of the problem.  The machine does this even with the PP disconnected.

My E-Stop is hooked up first as the wiring comes in the machine. First to E-Stop then to a off and on rocker style switch. The VFD power switch and the CNC power switch are both  wired into the E-Stop

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Re: z steper trouble
« Reply #51 on: January 01, 2013, 12:37:17 PM »
Ok I have just tried doing the two moves and again it runs fine here so it is almost certain there is not an issue with your xml.
Dont know what to suggest other than find someone with a scope that can look at the pulse.
One other question, cant remember if I asked or not but on Diagnostics page what does the Frequency say and also Time in Int.
Hood
Re: z steper trouble
« Reply #52 on: January 01, 2013, 03:22:37 PM »
Coded go z50.000 so I would have plenty of time. Before I clicked enter I read the diagnostics. Time in Int was bouncing about 4.3 to 4.7 and Pulse Frequency at 24998. I clicked enter and PF stayed the same but Int bounces between 4.3 and 12.5 . This is with PP unconnected. The change of direction didn't change any readings even when it was stuck 

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Re: z steper trouble
« Reply #53 on: January 01, 2013, 07:31:29 PM »
Ok can only suggest you either try another computer or clean that one. The issue is not in your xml as far as I can see as it runs fine here.
Hood
Re: z steper trouble
« Reply #54 on: January 01, 2013, 08:08:44 PM »
will  do and thanks and HAPPY NEW YEAR

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Re: z steper trouble
« Reply #55 on: January 01, 2013, 08:10:09 PM »
Hopefully it will be for you and your CNC as well :)
Hood
Re: z steper trouble
« Reply #56 on: January 02, 2013, 01:27:11 AM »
I wll compleatly strip the computer and download every thing new. It doesnt have much on it anyway because I bought it just for this and it was refurbished then.

What version of Mach should I down load

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Re: z steper trouble
« Reply #57 on: January 02, 2013, 04:29:59 AM »
The latest lockdown would likely be the best.
Hood