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Post by lseguine on Nov 17, 2012 23:51:42 GMT -8
[DaveCVI: these posts moved from the sticky thread re probe interfacing to a new thread here 11-19-2012]
dave,
i'm having a problem with my program and the probe set up
first i get both pin 15 light on and probe active light, when i bump the probe they both go out. if i try to run the probe i get an error message, also i keep getting no probe tool installed and can't seem to load it from the MDI .
What am i doing wrong, Oh im using a CNC4PC c11 BOB.
larry in alaska
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Post by lseguine on Nov 17, 2012 23:53:13 GMT -8
ho abd my probe does not have a LED in the unit.
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Post by DaveCVI on Nov 18, 2012 8:24:22 GMT -8
Hi, dave, i'm having a problem with my program and the probe set up first i get both pin 15 light on and probe active light, when i bump the probe they both go out. That sounds to me Mach is seeing the probe input as always active and the signal is going inactive when the probe is triggered. The typical reason for that is that the input pin is not configured correctly in mach - Go into ports and pins and check the active low setting for the probe input - reverse that setting for the probe input and you will reverse the on/off (active/inactive) state for mach. if i try to run the probe i get an error message, ... You didn't say what the error message is (and my crystal ball is a tad cloudy this morning  ) - See if the message is still there after the fix above. Right now it sounds as if the probe input is always active and if you try to do a probe operation with the probe already active at the start of the operation, mach will notice that, complain and refuse to do the G31. ...also i keep getting no probe tool installed and can't seem to load it from the MDI . MSM knows what tool # the probe is from the WC Offset, probing page: there is a "Probe Tool #" DRO in the Probing Op Parameters panel. The probe tool can't be 0 (as 0 is the way mach spells "no physical tool"). Then you have to mount the probe tool via T"probe tool #" M6 - after that, MSM will know the probe tool is mounted and allow probing operations with it. (Oh yeah, after mounting the tool via MDI, don't forget another MDI command of G43 H"probe tool #" if you want the TLO value for the probe tool applied). Dave |
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Post by lseguine on Nov 18, 2012 17:35:29 GMT -8
Dave,
well iwent bach and set input to low, cured the error already active. but now it refuses to load the probe, for that matter it refuses to load any tool with the t# m6 command,
this is the case on all screens. so what have i screwed up now???
larry
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Post by DaveCVI on Nov 18, 2012 17:52:17 GMT -8
Hi,
I'll need some more info about precisely what you are seeing...
here are some tests:
1) use the mach menus to go to config/general -
Upper left area of the dialog - is the tool change mode set to "stop Spindle, wait for cycle start"?
If it is set to "ignore tool change" then mach is doing what it was configured to do - i.e. ignore tool changes. change the mode back to stop & wait.
2) go to the tooling page
3) use MDI to do T2, then the enter key. Does the Tool # DRO in the next tool panel change to #2?
if step 2 was OK, then
4) now using the MDI line type M6, then enter.
Does the system start a tool change sequence?
(it should change to #2 as we set the next tool to 2 in the prior step).
Note: if you find the tool change mode was reset to "ignore", that coupled with the change in the probe input line configuration, is starting to suggest that you may have lost the Mach configuration settings.... you may want to check all the config settings for correctness and/or consider restoring a backup of the mach XML profile.
Dave
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Post by lseguine on Nov 18, 2012 21:40:43 GMT -8
Dave
AHHH-HAAAw that did it....
Thankyou thankyou old wise oneeeeee...
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Post by DaveCVI on Nov 19, 2012 9:11:53 GMT -8
Happy to be of help!  Dave |
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Post by lseguine on Nov 19, 2012 13:31:47 GMT -8
Ohhhhh Daveeee, wouldn't you know it, think things are doing what you thought and up jumps the devil.... last night i followed your directions and got the program to load the tool and when i hit probe command the z axis moved down as expected so i shut thing down and called it a night. i did not have a probe mounted at the time. this AM i went out and started playing with it but still did not trust to mount a spendy tool in the machine but elected to hold it in my hand and manually trip it by hand. sounds wise  well it tarted to probe down, i trigered probe , and get a error mesage z serface not found and a cancel of probing opps. tried changing pull up down jumper not the asnwer. tried loading different probe tools same results. what do i need to do now?? larry |
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Post by DaveCVI on Nov 19, 2012 15:08:32 GMT -8
Hi Larry,
When testing probe operation DON'T use Z axis moves for testing - as you figured out a bad Z axis move can clobber a probe.
Instead Use a X or Y move for testing and set up.
Set the Z height so the probe tip will just drag across the top of a horizontal surface - that way if the probe does not trigger, little harm comes to the probe.
If you want to do manual probe triggering as part of testing, unless your reflexes are really, really good, you'll need to be doing single rather than double probing operations. See the Probing parameters panel - check the Slow probe feed rate DRO (user manual 8.5.1.5) - is it = 0?
If it is 0 you are doing single probes.
If it is not 0, the system expects the probe will trigger, back off a small distance (also set in the parameter panel) and then re-probe to the just found surface at a 2nd (usually slower) feed rate.
If you are hand triggering the probe, I doubt anyone (human at least) can push the probe tip, let it go and push it again and get the timing right....
Dave
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Post by lseguine on Nov 20, 2012 16:49:46 GMT -8
And good afternoon Dave,
well after the above info and seeing the new probe page, think i found the problem, the debouncing figure info.. seems for some crazy reason i keeped over looking it i was set to 0 up it a bit and things start working right.
but now a new problem reared its ugley head, got a lead came loose on my driver and fried the plug beyond use taking out my x axis till i can repair things.
so for now i'm back on hold for a while till i can find a sorce for the screw plug conector.
ahhh never fails
Oh well have a great day friend
larry
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Post by DaveCVI on Nov 20, 2012 17:40:01 GMT -8
Hi Larry,
Yep, it's never good when the magic smoke comes out of the electronics.
When you get it fixed, you might want to check out section 8.11 of the MSM user manual; it's a step by step tutorial for setting up probes to work with mach & MSM.
Dave
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) - See if the message is still there after the fix above. Right now it sounds as if the probe input is always active and if you try to do a probe operation with the probe already active at the start of the operation, mach will notice that, complain and refuse to do the G31. 
