Thread: Driver wiring advice needed...
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19-08-2013 #1
Hello,
Firstly, I must confess to being an electronics dunce. Hmm, probably not just electronics, but I'll stay on topic.
I'm currently working on my driver box and it seems to be going okay (thanks in no small part to Clive.S - a top bloke who has helped me out massively) but as Clive is using a different BOB to me, I thought I'd throw my plans out here to see if I was heading down the right path...
I'm using 3 Wantai drivers (DQ860MA) at 70v along with the free BOB that comes with 'em, which I'm powering from the integrated 5v auxiliary on my power supply.
The first question - if you look at the picture of the BOB - how come there are 2 sets of inputs for the power - my board has them marked as +5V/GND/GND/VDD - or is the idea that you power the board with one set and are then able to take power from the other set?
I know that P1&P2 are intended for XPUL and XDIR respectively. P3&P4 are intended for YPUL and YDIR respectively and (yep) P5&P6 are for ZPUL and ZDIR. I've also been told not to worry about the ENBL+/- pins for my application.
So, with that in mind, will this wiring work:
Or, should I use P1&P2, P3&P4, P5&P6 to go to the PUL-/DIR- pins of the drivers and then take multiple wires from the VDD terminal to all of the PUL+/DIR+ pins?
Now, to throw the cat amongst the pigeons, I found this post:
LinuxCNC Support Forum :: Topic: LinuxCNC, DQ542MA driver and DB25-1205 BOB (1/1)
Which looks identical to the set-up I've illustrated in the image above, although it looks like he's re-purposed pin 16 (in Linux CNC) as 'Amplifier Enable' and will use run multiple wires from this pin to all of the ENBL+ pins - what would the purpose of that be, exactly?
What are your thoughts guys?
Cheers - and apologies for the rudimentary nature of my questions!
Wal.
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