Thread: The Big Red Mechmate in Aus
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30-06-2014 #1
Bruce, it's true that reading other peoples drawings can sometimes be difficult, I'm at that place now.
It might be best to describe in words what you are trying to achieve.
For example you have these 3 control stations with, Reset/Start, Pause, Stop, so what do you want each of these buttons to do ?
What do you want the PILZ relay to control ?
If an AM882 goes into alarm what do want that to do ?
I'm thinking it might be best to ignore my circuit for the most part so we can get your machine to do what you want it to do.Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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30-06-2014 #2
Hi EddyCurrent, good to see you again. I am 80% through your drawings and have it working for the most part. The mains to the 24V circuit works, the mains to 50V circuit work, the E-Stop circuit works, all of these via the PNOZ as per your drawings. It is just these that I have had to think a little more about. Basically each of these boxes do what the buttons on your main control panel do, namely stop the machine, pause the machine and start the machine as well as reset the circuit. Now, I have everything working as per your drawing, that is one of each. My drawing above is taking that and making it into 3 lots instead, each one is a copy of buttons on your main panel. In a standard Mechmate, these do pretty much what your circuit does, "start" starts the job, and "pause" pauses the job. There is no "stop" button on a standard MM but I want to incorporate one. There *is* an E-stop in each on an MM though. The start & pause buttons are controlled via pins on the BOB and are assigned to codes that execute when pressed. I however will be using you brains to run things.
Don't get me wrong, I have a large percentage of your drawings worked out, it has taken me a while but I got there and have run wires :) This last little bit should see the control box interacting with the computer by weeks end just to verify the pushing a button does what it is supposed to.
Oh, and the relay numbers have been incremented by one, I am using 2 contactors instead of one and my main on/off one is now K1.Last edited by ozspeedway; 30-06-2014 at 02:58 PM.
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30-06-2014 #3
What I meant was that I was having difficulty understanding your wiring diagram, I started to redraw it.
The general arrangement with multiple sets of pushbuttons is this;
N/O (normally open) are wired in parallel, N/C (normally closed) are wired in series.
So with that in mind it should be easy to connect the 3 boxes to the rest of the circuit you already have working.Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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02-07-2014 #4
Ah, yea knew that re NC & NO. In this case that will result in mega wiring throughout the machine. I have started wiring up things as per my diagram, will report how it goes when I done doing school holiday stuff with the kids.
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30-07-2014 #5
Any update Bruce ?
Spelling mistakes are not intentional, I only seem to see them some time after I've posted
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30-07-2014 #6
Nothing to report unfortunately Eddy, *still* stuffing around with this control box (and losing interest real quick!). My PMDX 126 arrived and needed a little reorganisation of the inside layout. I also had to abandon your wiring setup for the start/reset-pause-stop buttons as I needed to have the reset/start button actually be able to start the job from nothing and not just from pause or stop. Went mad trying to get it to work so decided to just wire all of them directly to the bob and figure out a new brain to control them. Still haven't finished that side yet and thats where things stand right now.
Cheers
Bruce
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21-09-2014 #7
Bit of an update, the machine is close to finished, just some wiring to button up. Having a couple of issues with certain things that I thought I would run past you guys. My main showstopper at the moment is wiring my motors.
I bought 4 640 Oz-In Nema 34 motors, 34H280-45-8A, that I want to wire in Bipolar Parallel. The site I got them off has one wiring definition (http://ausxmods.com.au/index.php?mai...products_id=13), the spec sheet from Automation Technologies has another http://www.automationtechnologiesinc...motor-6-3-amps. Wired them as per the Auto Tech specs and my AM882's instantly go into over current error. I then wired them as per AusXMods and while the AM882 powered up fine there is absolutely no movement from Mach3 via my new PMDX-126/Ethernet Smoothstepper combination.
I currently have a contact form email into AusXMods and MS-Motor (who seem to supply these things) to try and determine who is correct. Once I have that I know what I need to look into - The AM882 Over Current problem or the no response from Mach3 to the motor
Something else that is not working as it should is my touch-off implementation. I use Gerry's (Ger21) 2010 screenset and have a button on my machine that when pressed it sends the signal via a 2 way switch. Depending on which way that swith is set determines which pin is activated on the BOB. Once the pin is detected, a brain I have written that sets a UserLED which is then detected my Mach Mad plugin to run the macro associated with the UserLED. Now (after all that), this worked fine when I was using a PMDX-122 via Parallel port. As I blew up my 122 I replaced it with a PMDX-126 and also stuck an Ethernet Smoothstepper into the mix. However, none of the above works, infact no touch-off routines work (Mach says No Probe Active) Unless I tell it the Probe input under Ports & Pins is on one of the lines I am using. Of course, this causes the other setting not to work. Totally different from the 122 implementation and not what I want. Have given up on this one until I get my motors turning.
There we go. Pics and videos when I all works as it should :)
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