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Forum: 702. Power Supplies Sat 23 August 2008, 07:26
Replies: 44
Views: 49,933
Posted By Richards
Robert, When I first started my test-bench...

Robert,

When I first started my test-bench project, I bought an Avel Y236801 500VA 25V+25V from Parts Express (currently $79.29 plus shipping) and a PMDX-135-8020 power supply board (currently...
Forum: 702. Power Supplies Sat 17 November 2007, 04:16
Replies: 44
Views: 49,933
Posted By Richards
If everything is properly grounded, using the...

If everything is properly grounded, using the method that Gerald has described, then having a common ground for all power supplies will work very well - and would be the best method in this case.
...
Forum: 702. Power Supplies Mon 30 July 2007, 21:41
Replies: 44
Views: 49,933
Posted By Richards
Greg, When you use the G203 stepper drivers, on...

Greg,
When you use the G203 stepper drivers, on the PMDX-122, place the JP1 jumper on pins 2 and 3 to select common ground. You need to tell Mach 3 to send the step and direction pulses Active-HIGH...
Forum: 702. Power Supplies Mon 30 July 2007, 17:17
Replies: 44
Views: 49,933
Posted By Richards
Greg, My two test benches are just rat's nest...

Greg,
My two test benches are just rat's nest wiring which were never intended to be seen by anyone but me. The truth is that I add and subtract components everytime that I turn either of the test...
Forum: 702. Power Supplies Mon 30 July 2007, 13:57
Replies: 44
Views: 49,933
Posted By Richards
Gerald, The G203 fuse is a pain to get to. ...

Gerald,
The G203 fuse is a pain to get to. Under normal usage it should never need replacing, but if and when it does need to be changed, it will take some time. Since the Gecko G203 internal fuse...
Forum: 702. Power Supplies Mon 30 July 2007, 08:42
Replies: 44
Views: 49,933
Posted By Richards
I'm a little confused about the difference...

I'm a little confused about the difference between between connecting four 'regular' conductors to 1-inch of a heavy 'master' conductor and using four terminal blocks jumpered together with a heavy...
Forum: 702. Power Supplies Sun 29 July 2007, 11:20
Replies: 44
Views: 49,933
Posted By Richards
Terminal blocks can be fitted with jumpers that...

Terminal blocks can be fitted with jumpers that screw several blocks together so that they act as one block. If you do that, then you could have one wire going into a set of four blocks and one wire...
Forum: 702. Power Supplies Sat 28 July 2007, 21:37
Replies: 44
Views: 49,933
Posted By Richards
Greg, Take a look at the photos that Gerald...

Greg,
Take a look at the photos that Gerald posted:

http://www.mechmate.com/forums/showthread.php?t=282

The terminal blocks make wiring simple and easy to trace when things break. You can...
Showing results 1 to 8 of 8

 
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