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Forum: MechMates already cutting Tue 17 April 2012, 20:43
Replies: 128
Views: 209,962
Posted By Richards
Stepper motors that are driven by Geckodrive...

Stepper motors that are driven by Geckodrive controllers, have two signals, step and direction. If there is noise on either line, you will have severe problems.

My first impression is that you...
Forum: MechMates already cutting Wed 08 July 2009, 20:20
Replies: 128
Views: 209,962
Posted By Richards
Conrado, R31 and R32 are NOT installed on...

Conrado,

R31 and R32 are NOT installed on either of the two PMDX-122 boards that I have.

If you think that you may have unsoldered D1 somehow, be sure to check the entire board with a good...
Forum: MechMates already cutting Wed 08 July 2009, 16:12
Replies: 128
Views: 209,962
Posted By Richards
Conrado, Having an unregulated power supply...

Conrado,
Having an unregulated power supply deliver more or less voltage than expected is quite common. AnTek lists the voltage based on 115 VAC or 230 VAC input voltage. If your voltage is more...
Forum: MechMates already cutting Wed 08 July 2009, 09:48
Replies: 128
Views: 209,962
Posted By Richards
The D1 diode is used to convert A.C. half-wave...

The D1 diode is used to convert A.C. half-wave D.C. so that the on-board 5VDC regulator can work. It is only needed when you use A.C.

If you have 5VDC on J8, then the PMDX-122 board is able to...
Forum: MechMates already cutting Tue 07 July 2009, 20:32
Replies: 128
Views: 209,962
Posted By Richards
The MAXIMUM voltage for a Gecko G203v is 80VDC. ...

The MAXIMUM voltage for a Gecko G203v is 80VDC. The 91.2V is too high for that device. The G203v is tested at 100VDC, but it will eventually fail when the voltages are over 80V - especially when...
Forum: MechMates already cutting Sun 15 February 2009, 10:06
Replies: 128
Views: 209,962
Posted By Richards
I would choose a 35V power supply and wire the...

I would choose a 35V power supply and wire the motors bipolar half-coil (Black/Yellow wires on the A coil and Red/White wires on the B coil). The AnTek PS-5N35 or the PS-5N39 would be a closer...
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