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Old Oct 27, 2007, 12:50 PM
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Syracuse Hancock, New York, United States
Joined Jul 2003
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This is the method I used to wire my controller box using the MPJA transformer. Garret Wikoff and Jaime VanDiver came up with this diagram for me when they saw I was having trouble understanding the schematics available on the web.
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Last edited by bgriggs; Oct 27, 2007 at 07:15 PM.
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Old Oct 27, 2007, 04:33 PM
Make something. Anything!
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Syracuse Hancock, New York, United States
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The first thing I needed to do was determine the polarity of the wall plug. The Larger wider blade of the plug is attached to the joined Black wires of the transformer.

I drilled a hole in the side of the case for the power cord. I then inserted a Grommet into the hole and slid the power cord through and put a knot in it for strain relief.
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Old Oct 27, 2007, 04:44 PM
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Case Layout

Let me backtrack a second...... Here is the basic layout of the components inside the Rubbermaid Keepsake case.
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Old Oct 27, 2007, 05:14 PM
Flying IS the hobby
Upstate, NY
Joined Feb 2002
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bgriggs,

is the Pro 4 axis running on AC? or is that an AC to DC transformer I am confused

Thanks

jeb
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Old Oct 27, 2007, 05:20 PM
Flying IS the hobby
Upstate, NY
Joined Feb 2002
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Ah, I just saw the bridge rectifier, is that all it takes to convert AC to DC?

Thanks again

Jeb
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Old Oct 27, 2007, 05:41 PM
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Syracuse Hancock, New York, United States
Joined Jul 2003
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Quote:
Originally Posted by jeb
bgriggs,

is the Pro 4 axis running on AC? or is that an AC to DC transformer I am confused

Thanks

jeb
The complete kit comes with parts to build a power supply. The transformer takes AC and rectifies it to produce DC, the filter capacitor smooths out the peaks...... If you need more information, an electronics guru can help you.

Bill
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Old Oct 27, 2007, 05:48 PM
Flying IS the hobby
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Joined Feb 2002
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Thanks Bill, from your explanation and the diagram is all I really care to know - I just want to get the basics for when I start building mine, hcncpropkg

thanks again
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Old Oct 27, 2007, 07:13 PM
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Syracuse Hancock, New York, United States
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The two red leads of the transformers are soldered together. The Red leads are soldered to the bottom lugs of the switch.
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Old Oct 28, 2007, 08:55 PM
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Syracuse Hancock, New York, United States
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wiring the switch

I thought I would try and make it clearer on exactly hoew I wired the transformer to the switch. The drawing on the rright shows the red wires and the one on the left shows the black wires.

The red wires from the Transformer are bundled together and soldered to the bottom two lugs of the switch. I spun the switch around for the photos so the connection could be seen.

The ribbed wire of the power cord (Large Blade) is wired directly to the two Black wires on the transformer.

The smooth wire of the power cord (small blade) is wired to the 4 amp fuse holder. The other connector of the fuse holder is wired directly to the remaining two lugs on the switch.
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Old Oct 29, 2007, 05:37 PM
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Syracuse Hancock, New York, United States
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Did I lose anybody????
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Old Oct 30, 2007, 05:07 PM
That motor isn't hot...
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I'm back!
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Old Oct 30, 2007, 10:16 PM
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Syracuse Hancock, New York, United States
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Output side of transformer.

So far we have wired the switch and 4 amp fuse to the input side of the transformer. Now it is time to deal with the output side of the transformer, 10 amp fuse holder, and bridge rectifier.

The output side of the transformer has three wires (Blue Yellow Blue). The Yellow wire is not used and should be terminated with either a wire nut or heat shrink tubing.

The Blue wire closest to the 10 amp fuse holder gets soldered to a lug of the fuse holder. The other lug of the fuse holder should be wired to one of the Bridge rectifier lugs labeled AC.
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Old Oct 30, 2007, 10:57 PM
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Syracuse Hancock, New York, United States
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Are these diagrams helping or hurting?
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Old Oct 31, 2007, 07:49 AM
Flying IS the hobby
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Labeling the components on the drawings would allow them to stand alone, but they are very good

Thanks
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Old Oct 31, 2007, 08:27 PM
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Syracuse Hancock, New York, United States
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The other blue wire

OK, Now we must connect up the other blue wire from the output side of the transformer. Crimp a solderless connector on the end of remaining blue wire and connect it to the bottom lug of the bridge rectifier. This lug should also be labeled AC.
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