Machsupport Forum
Support => One on one phone support. => Topic started by: djacobson on January 24, 2014, 04:56:52 AM
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Emergency stop works but motors do not. Need help with mach 3 settings.
Derek
402-802-7495
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Please read the tutorial carefully and also read the appropriate manual.
http://www.machsupport.com/forum/index.php/topic,26252.msg184948.html#msg184948
RICH
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Hi i've read the manual but still nothing, the DRO's Move but my motors are not. I'm uploading a youtube video to show people whats wrong. Please Help. Thanks
I will post a link when its done uploading.
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Here is a link to my video. It explains everything that i need help with. Thanks
https://www.youtube.com/watch?v=3Zgib7ufpT4
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Try changing your step signals state to Dir Low Active checked (in Motor Outputs) and see if that makes any difference.
As you are aware Max NC mode allocates and drives the pins in a different way to your controller requirements so stay clear of that.
Try selecting Sherline 1/2 Pulse Mode and see if that makes any difference.
It could be that your allocation of pin# is totally incorrect in motor tuning but I would still expect some response with the setting you currently have.
Whilst the machine is connected and has no response are the motors locked (unable to easily rotate by hand) ??
Tweakie.
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Run the driver test again, you will see a file called..... DriverTest.exe....... in the directory Mach was installed.
then,
Open Mach and change motor settings per attached pic, save settings, exit Mach and reopen.
I know it's different than what Tweakie said but in your video that is not how they were set and that is what i found in the manual.
So give it try and see how it goes.
Report back,
RICH
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Hi thanks for the help tweakie and rich, here's what I got so far.
dic low active and/or step low active neither work.
Sherline half pulse mode also does not work.
Still no motor movement.
Tweakie the motors can be spun easily by hand with controller on.
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Rich here is a picture of the driver test. Thanks
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As the steppers are not 'locked' when power is applied, in my opinion, this indicates that you are missing an 'enable' signal on one, or more, pins.
Because of the poor documentation supplied with you machine you will have to find the pin by 'trial and error'.
In Ports & Pins : Output Signals - enable Enable#1 and set it to Port#1 then try each of the pin numbers 1,8,9,14,16,17 in turn both Active Hi and Active Low until you find the right one (lets hope it is pin 1).
Tweakie.
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Can you take a nice picture of the drive inside your controller and post it?
RICH
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if it's find the mapping between pin numbers and BOB connections we're playing - why not shutdown Mach, download a copy of parmon, turn all outputs off and then one by one turn them on and find which one is which on the BOB with your trusty meter?
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Rich what do you mean by the "drive" inside the controller?
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Tweakie when i have port 1 and pin 14 on active low, the motors stay locked until i hit the restart button. However when i just have port 1 and pin 14 on they stay locked after hitting restart. Whats next?
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Stirling here is a pic of parmon.
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Just take a picture of the inside of the box. There is card which could be the drive or there are 3 black boxes or something in there.
RICH
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Bigger Card - JP-382A
Small Card - JP-1482
How Are The Pics?
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How Are The Pics?
....... more like murals. :) ;D
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Murals? Sorry if there so big I have a hd phone. But you should be able to get all the info you need from these pics clearly.
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Couldn't find info on the boards and seems there are jumpers on the 382a but not sure what they are for.
The Max cn10 mode provided pc communication to some board made a long time ago, like some 10 years ago.
I just happen to find a tad bit of info about the mode. So if the pc can communicate in that mode to your steppers then
pc output to the controller to the motors is working.
My question becomes what is the difference of MaxCN10 mode as compared to call it normal step and direction mode output from
Mach as that would make things a lot easier if known. Are pins switched by some chance or is it just the wave form or whatever?
Anybody???
RICH
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Hey Rich two things. One i just bought this parallel port for my other computer just to try it.
http://www.ebay.com/itm/380801587270?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649
Two) I found this can you tell me if i need this power source and if so what cable do i use and does it goto USB or plugin? Pic Attached
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Stirling here is a pic of parmon.
;D Very nice.
I think you missed my point a tad. If you click on the diodes that represent outputs then you can toggle all your output pins off. You then toggle each output on in turn and check whether your motors are locked or not (i.e. driver enabled/disabled). That will identify which pins are enables. You then do the process again looking for a step (you'll more likely hear it or feel it than see it). Using this technique eventually you should be able to find out what each pin number does.
FWIW the reason you're getting some (albeit erratic) movement from Max NC mode is that after testing here it appears to chuck out "stuff" on every output pin except 17 so at some point it just randomly happens to enable your board(s) and flip some steps. I don't think there's anything wrong with your system - just that you don't know what pin does what.
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1. Card output volatge needs to be 5v, some are only 3volt and will not work, some are dual voltage and provide for selection
of voltage on the card so read your info on the card. If you use that card run the driver test with it to make sure the signal
quality is ok.
2.I don't know, trace the wire back to the cards and see where it goes as i con't see it in the pictures.
Call the seller and tell them your problem and see what they have to say and ask for info on both controller cards.
Insist on an answer and info nothing else is accpetable.
RICH
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Ok if I send power to pin 14 than I click on and off pins 2 4 6 I will get a slight tic from the motors but they are all locked. If I unclick pin 14 (no power) than the motors can be spun by hand and there is no clicking in the motors when clicking pins 2 4 6.
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Rich only thing seller offered me was an exchange for a new machine. I bought this one new too so not sure what to do. They say this is the cnc 3020t this is the updated version on the first 3020 and that they have never heard of this kind of problem before and also they don't have any manuals. They also suggested rewiring the machine, with a new set of wires. They seem to be convinced that the machine is fine just could be my computer or mach 3 settings. What to do next? IDK
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Ok if I send power to pin 14 than I click on and off pins 2 4 6 I will get a slight tic from the motors but they are all locked. If I unclick pin 14 (no power) than the motors can be spun by hand and there is no clicking in the motors when clicking pins 2 4 6.
OK..... so you now know pin 14 is your enable and pins 2, 4 and 6 are your step pins. The 2, 4 and 6 agree with what RICH posted earlier so we're getting somewhere. You discussed with Tweakie earlier that your motors weren't "locked" but now we know how to sort that. Enter port 1 pin 14 in enable1 on outputs.
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Manual i downloaded from the internet, not sure it's what you have, and the controller looks like a different model, so probably the cards are different also.
FWIW
RICH
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Driver chip info on the 382 board for reference.
RICH
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Hi RICH - yes I spotted that manual too but didn't download because I don't trust .doc - too easy to spook. Now you've downloaded it - any chance of converting it to .pdf and linking to that instead?
Ian
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Ian,
See reply 26...now a pdf.
RICH
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Thanks everyone. Rich, Tweakie, and Ian. Ok here's the solution. First off Rich thanks for the pdf of my machine. I uninstalled everything following the pdf I reinstalled mach 3 and reconnected all the cables to my cnc 3020t and than I went to the settings and enabled on output signals port 1 pin 14 active high. Than I went to motor tuning and setup x and y to steps 400, velocity 2000, acceleration 200, step pulse to 10, and direct pulse to 3. Than Z is steps 400, velocity 800, and acceleration 100, step pulse 10 and direct 3. Now it works. Ok rich or anyone now that I've done this can someone please tell me how to cut my first board like setting home position and getting g code and how to set Z clearance and how to cut my first piece. Thanks everyone.
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Ok rich or anyone now that I've done this can someone please tell me how to cut my first board like setting home position and getting g code and how to set Z clearance and how to cut my first piece.
Glad it's working. :)
Your learning curve is about to "just" begin.
1. Read the Mach3 Mill manual since there is a lot of information in it. CNC machining is not plug and play.
2.You can try one of the Wizards that comes with Mach as that will generate the gcode for you to fool with.
Suggest you dry run it.
Have fun,
RICH
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Oh man sounds like fun. LOL. Thanks for all the help.
Looks like it's back to watching Youtube.
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Ian,
See reply 26...now a pdf.
RICH
Cheers RICH
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Thanks everyone. Rich, Tweakie, and Ian. Ok here's the solution. First off Rich thanks for the pdf of my machine. I uninstalled everything following the pdf I reinstalled mach 3 and reconnected all the cables to my cnc 3020t and than I went to the settings and enabled on output signals port 1 pin 14 active high. Than I went to motor tuning and setup x and y to steps 400, velocity 2000, acceleration 200, step pulse to 10, and direct pulse to 3. Than Z is steps 400, velocity 800, and acceleration 100, step pulse 10 and direct 3. Now it works. Ok rich or anyone now that I've done this can someone please tell me how to cut my first board like setting home position and getting g code and how to set Z clearance and how to cut my first piece. Thanks everyone.
I have had the same problem.enabled output signals port 1 pin 14 active high. and it fixed the problem
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that plug is for the probe