Machsupport Forum
Mach Discussion => General Mach Discussion => Topic started by: eq007 on February 04, 2013, 06:11:06 AM
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Well today I decided to buy Ger's 2010 screen set for the auto zero and probing functions. But in order to take advantage of it I needed to add two (2) home switches one each to X and Z. I already have X and A ganged and switched and working flawlessly. Before I go into my Issue let me give you a run down of the equip. I'm running some Chineese drivers, a 48v antek PS and a Smoothstepper with a CNC4PC c25 smoothstepper teminal BOB. I have provided an autocad file of the complete box and wiring layout as well as terminal attachments. I also Have provided the xml file for the profile i'm running.
I mounted and wired the 2 home switches that needed to be added for the X and Z. I attached X to port 2 pin 10 and Z to port 2 pin 13. Went into mach and setup the ports and pins making sure to have them as active low since they are NC switches.I started by testing Z and it crashed into the switch faster than I could get to the E-stop, but no damage was done. I then manually tripped each switch to make sure smoothstepper diagnostic screen and mach diagnostic screen led's picked up the activity, and it did as expected.
I then moved the X axis to the mid-point of the carriage and proceeded to ref x. I manually tripped the switch, the LED's on the diag pages showed the activity but the home cycle didnt stop and zero the machine coords as it does with the Y and A. Thinking I had a software issue I upgraded from 3.043.022 to 3.043.066 and nothing changed. Then figured maybe something happened when I installed Ger's screen set. I started a brand new profile and entered only what I had to in order to get motion and homes leaving all else at default. Still no joy, the issue persisted. Ok maybe it's noise so I set the Debounce on mach's general setup screen to 2500 with no change.
I then thought well maybe it's the wiring. I pulled the wires and checked for continuity on X and Z. My meter beeped at me on both until the switch was activated breaking the circuit as one would expect. Ok so maybe it's the pin, so I moved X to port 2 pin 9 and set the smoothstepper to see port 2 pins 2-9 as inputs. No love! I then thought let's set it as the X++ limit. When I did that I could not get the reset button to let go of a limit switch tripped error. I though ok dumby you forgot to set the limit to active low and proceeded to check it, nope it was indeed active low. So I changed it to active high and the outcome was the same. The error still would not reset. I then proceeded to wire it all back to normal (as shown in the cad file), and though maybe the switch was bad. So I proceeded to solder on a new switch with the same results. The Y and A axis perform normally and have been for three weeks and continue to even after Ger's screen set install so I dont think that's the issue. It's just X and Z that are not playing nice. Any help or light that anyone can shed on this issue is greatly welcomed.
Thanks in advance
Chuck
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opps here are the files..
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ok so noone has any thoughts or ideas. i guess ill have to pull new wire and fresh install mach not just a new profile.
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Hold on just a minute.
May have found a problem.
Brett
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Can you try it running version 3.043.062 with a standard screen set? If you don't feel comfortable trying, don't. If you do, let me know how it goes please.
Brett
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i can later today im at work right now. but i sure will. where can i download older copies of mach??
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Thanks, I appreciate it.
ftp://www.machsupport.com/Mach/
Brett
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Ok the results are in. X worked one time in the version you asked me to try. Z still no love! I did a fresh install in a temp directory and then setup only movement and switches. Y and A still work as expected. I have all the switches ganged to one 5v pin for power all soldered to a #14 solid wire. the other ends are put to the input pins. they are active low. Just incase any of this makes a difference. I'll attach a picture in another post of just the smoothstepper and c25 bob.
[attachment deleted by admin]
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Ok, the pic was much too large. Can you try again with a smaller oner or lower res.
Brett
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ok with the ganging all switches are on there own circuit. they all share a single 5v power pin on the c25 bob with the return wire to port 2 pin 10-13. 10 x , 11 a, 12 y, 13 z. they are mechanical lever switches wired as normally closed.
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ill get a copy tomorrow and crop it. ive left the machine for the day.
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OK, thanks. Did you try it with the standard sceen?
Brett
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yes the post before the thread crashed was the try with the version you wanted with the standard screenset and it still doesnt work well. see post 7.
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I already have X and A ganged and switched and working flawlessly.
I think it is your slave setting. You have A as a slave of Y. If you have a slaved axis you will need each of those aixs to have a limit, not both of them as one if you do NOT have the the home slave with master axis tick box set in general config.. The way the homeing routine works if you have all home switches to one pin or each to their own is this. It moves in the direction of homeing untill it sees the home switch change states then it goes in the opposite direction by a set amount then does the next axis in the order that the on screen Ref. all vb button in mach tells it to until they are all done. Yours are going in order of Z,Y,X,A but your slave settings page makes me think they should be Z,Y,A,X I think. I'm a little confused. What axis is A slaved to? If a is slaved to Y but you have X and A inputs ganged, I think that may be your problem.
Brett
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Hi, does antone know how to mack the nesting wizaed actve and/or work?
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This really should be a topic of its own.
I have never used it so all of this is a guess but i would say you load your gcode into Mach, chose the wizzard and run it, enter the specifics, hit create file, then hit return to Mach. You will also need to make sure the program you generate has an M99 and the end of it, not M30.
Brett
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Thanks for the help I'm at work right now. If you look at the cad drawing I attached and zoom extents, down in the lower right hand corner you will see a pictue of the smoothstepper and bob. It will show you exactly how everything is wired. I hope that will help clear up the ganging thing. The only thing they are ganged to is power. they are each on their own circuits. Y and A are slaved but each has it's own limit switch.so when I home Y it will touch the switch for Y and backoff then touch the A and back off. Does that mean I need to change the option home slave with master?
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Does that mean I need to change the option home slave with master?
No, the way you have it is fine and sounds like its working exactly as it should. If you check the home slaved with master it will not actually home the slaved axis, it will just folow the movements of the master.
I have sent you a PM.
Brett
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files...