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15-03-2015 #1
Can anybody shed some light on what wire gauge / mm / mm2 wire should be used for control panel wiring, 240v AC, 24v DC and signal wires?
Some articles mention 14 AWG for mains AC and 16/18 AWG for DC / signal, but then it gets confusing with mm and mm2.
Thanks again
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The Following User Says Thank You to Clive S For This Useful Post:
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15-03-2015 #3
Thanks Clive, so I'm assuming 0.5 and 0.75 are mm2. Would that equate to the top two items on this page http://www.csecables.com/acatalog/Tri-Rated-Cable.html?
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05-04-2015 #5
OK, can someone just cast their eyes over the main wiring for my cabinet ( attached image ), a little bit of reverse engineering from other diagrams on here and adapted to fit my needs i think?
Thanks
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24V seems low for the power supply to the drivers. What is the max that the drivers can take and which motors are you using? ..Clive
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05-04-2015 #7
Clive, see this thread regarding the PSU http://www.mycncuk.com/threads/5541-PSU-question from quite a while back when i started. I have upgraded the original drivers to these http://www.planet-cnc.com/files/MotorDriver25A-32.pdf now. It runs fine ( i presume ) just needed to move the electrics off the bench into a dust free environment.
Thanks againLast edited by Dwayne Dibbley; 05-04-2015 at 08:22 PM.
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The drawing is a bit ambiguous for me I would prefer more of a schematic. Do you really need 4 PSU 2 x 24 V 1 x 9v and 1 x 12V.
I don't know how big your machine is but its a shame to use only 24V psu and those drivers because your machine might have so much more potential if they were changed.
I have bumped this up so that Dean might see it and chime in. Clive
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06-04-2015 #9
Ding Dong Ding Dong.!! . . . . 24Vdc is correct for these drives Clive they only Take 30Vdc Max so don't want to release the Magic smoke.!!
Ok well see a couple of things.
Don't see the latching Relay wiring.?
Don't see the point of the Green 240V Led just use Red Led that's on all the time Power is On. Use the Green Led for indicating System is Reset and Ready. I'd Also use 24V leds.
Don't Like the fact your using 1x Mcb for 3 x Psu all different sizes. You will be better having the smaller ones on separate Glass Din rail fuses.Last edited by JAZZCNC; 06-04-2015 at 09:55 AM.
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06-04-2015 #10
ill upgrade to real drivers one day :), regarding the other PSU's the 9v powers the USB controller, and the 12v spins some fans on the drivers and the din 24v powers the estop thingy to kill power to the other psu's
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