Re: [CAD_CAM_EDM_DRO] Re: Phase converter questions

Keep in mind most VFD's will generally only work on single phase power
up to about a 3 HP motor size. After that, they require 3 phase power
on the input side. So unless you're running a 3HP or smaller motor you
may still need a rotary converter to generate the 3 phases you need to
supply a larger powered VFD - if you want the flexibility a VFD offers
for motor control. I wouldn't expect many HSM's to require much more
than a 3HP spindle motor - but I may be mistaken...

Here's a link for Rotary converters and some guidelines for selection:
http://www.phaseconverter.com/cncpro.html

Cheers, Peter


rawen2 wrote:

>--- In CAD_CAM_EDM_DRO@yahoogroups.com, "jlsmith269"
><jlsmith269@y...> wrote:
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>>Okay, on a 1 phase to 3 phase converter
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>>1: I hear that the statics have a maximum number of on/off cycles
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>per
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>>hour. If this is no longer true, please post MODEL and MAKE for me
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>to
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