Forum: 702. Power Supplies
Sat 28 February 2009, 15:27
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Replies: 77
Views: 86,684
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Forum: 702. Power Supplies
Thu 19 February 2009, 18:04
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Replies: 77
Views: 86,684
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Forum: 702. Power Supplies
Wed 18 February 2009, 09:07
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Replies: 77
Views: 86,684
Gerald, you are correct in stating that we have...
Gerald, you are correct in stating that we have all used the term Unipolar (half-coil). You and I know what it means, but I receive dozens of emails every week asking me how I use a Unipolar motor...
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Forum: 702. Power Supplies
Tue 10 February 2009, 03:21
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Replies: 77
Views: 86,684
Gerald,
Yes, there is a lot of confusion...
Gerald,
Yes, there is a lot of confusion about the terms, Unipolar, Half-Coil, Bipolar Parallel, and Bipolar Series - and a new term that I'm adding today - Bipolar Half-Coil. I've added to the...
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Forum: 702. Power Supplies
Wed 27 August 2008, 14:16
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Replies: 77
Views: 86,684
Stepper motors that work with Gecko stepper...
Stepper motors that work with Gecko stepper drivers must have two coils, an A coil and a B coil; however, stepper motors are normally built with different configurations to allow the best performance...
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Forum: 702. Power Supplies
Tue 26 August 2008, 11:53
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Replies: 77
Views: 86,684
Gerald, I think that we're still in basic...
Gerald, I think that we're still in basic agreement. I reduce the voltage because of excessive heat. If you're not getting excessive heat, then you have no problem. My favorite voltage for the...
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Forum: 702. Power Supplies
Tue 26 August 2008, 07:37
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Replies: 77
Views: 86,684
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Forum: 702. Power Supplies
Mon 25 August 2008, 13:27
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Replies: 77
Views: 86,684
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Forum: 702. Power Supplies
Sat 16 August 2008, 14:21
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Replies: 77
Views: 86,684
John,
Review the schematics that Gerald has...
John,
Review the schematics that Gerald has posted. The wiring from your main panel determines the type of transformer that you use in the United States. Most people use a 120VAC connection;...
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Forum: 702. Power Supplies
Mon 11 August 2008, 06:58
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Replies: 77
Views: 86,684
I reduce the voltage to 75% of the calculated...
I reduce the voltage to 75% of the calculated maximum voltage because of heat. Stepper motors can run very hot without damage, but I don't like to run electronic equipment hot. If given the choice...
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Forum: 702. Power Supplies
Sun 10 August 2008, 04:46
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Replies: 77
Views: 86,684
John,
From the data sheet, each motor, if...
John,
From the data sheet, each motor, if wired half-coil, would draw 4.3A. If you wired the motors parallel (using all eight wires), each motor would draw 6.1A.
So, depending on how you wire...
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