CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] PMDX-131 should we revise for larger G202 drivers?

Posted by jkbrennan
on 2005-05-02 12:20:32 UTC
>d
>Gecko drivers is 11.2" long. A revised PMDX-131 to support the
>G202/212 would need to be about 13" long and would cost about $181.00
>instead of the previously announced $174.00.
>
>We are seeking feedback from potential customers. Should we delay
>introduction and revise the board?
>
>Thanks,
>Steve Stallings
>www.PMDX.com
>
>
>It looks like marris has made the decision for you:
jesse

Cheap Commercial Announcement:

At the end of this month we will be offering a beefed-up G201/G210
called the G202/G212. It will have the following improvements:

1) No heatsinking required at 7A. New MOSFETs (140A peak current)
having only 1/5 the resistance of the current IRF530s will be used.
Very efficient and very low heating at 7A.

2) No external 470uF/100V capacitor required at 7A. Bought them and
put them inside the G202/G210. They are big so the package is 0.625"
wider, (3.125" by 2.5" instead of 2.5" by 2.5"). Same pinout, same
mounting-hole centers.

3) Short-circuit protected. Short your windings together, miss-wire
your 8-lead motors, use motors with shorted windings, short your
motor cables to ground, disconnect your motor under power; do it at
80VDC and 7A per phase while you are at it. The G202/G212 won't care;
it will go into "Hulk" mode and laugh at your feeble attemps to kill
it. Otherwise it's just another mild-mannered G201/G210. Think of it
as a G201/G210 on steroids.

4) Power-on Reset. Waits one second after power comes up and is
internally stabilized before it unleashes its fury on your motor.

5) More features = more parts = more money. In this case, a $20
surcharge above the G201/G210 pricing.

More interesting new stuff coming towards the end of May as well.



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Discussion Thread

pmdx_cnc 2005-05-02 11:47:31 UTC PMDX-131 should we revise for larger G202 drivers? jkbrennan 2005-05-02 12:20:32 UTC Re: [CAD_CAM_EDM_DRO] PMDX-131 should we revise for larger G202 drivers? cnc_4_me 2005-05-02 15:44:59 UTC Re: PMDX-131 should we revise for larger G202 drivers? turbulatordude 2005-05-02 16:45:48 UTC Re: PMDX-131 should we revise for larger G202 drivers? CalBoy101 2005-05-03 20:27:00 UTC Re: PMDX-131 should we revise for larger G202 drivers?