At 12:07 PM 11/28/2008, you wrote:
Having a UPS(s) to bridge the time between mains outage to generator
output was part of the plan. I would bridge just the equipment needed.
If I can boot the generator controller in a minute or two, it won't need
to be on all of the time. I'd like to save energy
On Saturday 29 November 2008, Mark Wendt (Contractor) wrote:
At 12:07 PM 11/28/2008, you wrote:
Having a UPS(s) to bridge the time between mains outage to generator
output was part of the plan. I would bridge just the equipment needed.
If I can boot the generator controller in a minute or two, it
Not quite. Most UPS's around 2KVA and below are 'off-line', ie straight
feed-through. Far far cheaper to make. You pay through your ears for an
on-line UPS as it requires a full power down and up converter.
Regards
Roland
2008/11/29 Mark Wendt (Contractor) [EMAIL PROTECTED]
Kirk,
Roland Jollivet wrote:
Not quite. Most UPS's around 2KVA and below are 'off-line', ie straight
feed-through. Far far cheaper to make. You pay through your ears for an
on-line UPS as it requires a full power down and up converter.
Every UPS has a full power down and up converter. How else
There is the wiki on it, but even that does not explain it properly. If you
have a look at this;
http://www.pcrite.com/store/product_info.php?cPath=24products_id=360
which is typical of what you find in a computer store, you will find a
single, underrated inductor inside. During normal use, the
Roland Jollivet wrote:
There is the wiki on it, but even that does not explain it properly. If you
have a look at this;
http://www.pcrite.com/store/product_info.php?cPath=24products_id=360
You don't put serious servers on such a UPS. I was thinking about smart
UPS that power one or more
could you use 3 outputs from a parport to control the sync. motors? an
enable pin, and then 2 of them on H bridges pulsing 90 degrees out of phase
to run the motors? also, am i missing something big here, or would these
motors run kinda like bipolar steppers, but designed to turn constant speed
On Fri, 2008-11-28 at 19:45 -0500, Jim Coleman wrote:
could you use 3 outputs from a parport to control the sync. motors? an
enable pin, and then 2 of them on H bridges pulsing 90 degrees out of phase
to run the motors?
That is close to what I did here:
On Thursday 27 November 2008, Kirk Wallace wrote:
On Wed, 2008-11-26 at 23:00 -0500, Gene Heskett wrote:
... snip
Emc could probably be massaged into doing it, and there would be a
certain cachet to the geekiness of it all when bragging rights are
being displayed to the visiting Joe Sixpacks,
On Thu, 2008-11-27 at 11:09 -0500, Gene Heskett wrote:
... snip
Somewhere in that controller there should be the equ of a turn left or turn
right switch. That is where I'd hit it with a pair of reed relays driven by
the pc. The older version had them obvious, right in the dial you turned.
On Thursday 27 November 2008, Kirk Wallace wrote:
On Thu, 2008-11-27 at 11:09 -0500, Gene Heskett wrote:
... snip
Somewhere in that controller there should be the equ of a turn left or
turn right switch. That is where I'd hit it with a pair of reed relays
driven by the pc. The older version
On Wednesday 26 November 2008, Bob Freeman wrote:
Hello,
Am interested in using EMC2 to control some traditional antenna
rotators, like the Alliance U-100. These are AC motors that are turned
on/off and reversed using relays (have known these to be called
bang-bang controllers).
I would like to
On Wed, 2008-11-26 at 23:00 -0500, Gene Heskett wrote:
... snip
Emc could probably be massaged into doing it, and there would be a
certain cachet to the geekiness of it all when bragging rights are
being displayed to the visiting Joe Sixpacks, but why? It actually
works pretty well as is. :-)
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