Analog output 0-30VDC
Analog output 0-30VDC
(OP)
With a PLC is it possible to get analog outputs of 0-30VDC @ 1.0 Amp max? It looks like the PLC analogs outputs go from +/- 10VDC. Does anyone know of a way to get a variable controlled analog from a PLC (possibly through another device) to get this kind of control.
Thanks
Thanks





RE: Analog output 0-30VDC
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Analog output 0-30VDC
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: Analog output 0-30VDC
RE: Analog output 0-30VDC
I am trying to get a variable output to a Valve device that is stepped from 1 Volt to 30VDC over time.
So my PLC Analog Output drives a device that can vary (from an analog signal) for 1 - 30VDC @2.5 Amps max Load. PLC outputs can't drive this kind of power or reach this voltage. The key is not setting the output of the power supply once but being able to electrically control it, without operator intervention.
Thanks
RE: Analog output 0-30VDC
Have a look at page 26 of http://w
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Sometimes I only open my mouth to swap feet...
RE: Analog output 0-30VDC
Plesae read FAQ240-1032
My WEB: <http://geocities.com/nbucska/>
RE: Analog output 0-30VDC
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Sometimes I only open my mouth to swap feet...
RE: Analog output 0-30VDC
http:/
TW Controls - http://www.twcontrols.com
RE: Analog output 0-30VDC
RE: Analog output 0-30VDC
I missed that
TW Controls - http://www.twcontrols.com
RE: Analog output 0-30VDC
RE: Analog output 0-30VDC
RE: Analog output 0-30VDC
I bought a Instek GPS-S table top power supply that could supply 0-30VDC @ 3Amps. The key to it was that it had a slave mode, which could accept a Analog input of 0-10VDC, that would inversely give an output of 0-30VDC. The analog input was only required to be in the milliamp range, thus not over-loading the Allen-Bradley PLC analog output.
The power supply was in the $175 dollar range.
So the PLC Analog Output is stepped from 10Volts to 0 Volts, with approx. 2 seconds between steps. I can now see what nominal voltage the valve coil picks up at. Then once this is established I vary the PLC output from this nominal voltage back towards zero and record what nominal voltage the valve coil drops out at.
RE: Analog output 0-30VDC
Huh? It's a digital supply. What needle?
I figured I'd bookmark the power supply with a control input on it that Billmonster mentioned. So I googled 'Instek GPS-S' and looked at the first hit.
There's mention of ISO-9001 and a host of approvals from various agencies, the typcial ya-da, ya-da. Then I see
"This is the Fact: The load on the needle changes
as it goes from above the skin (when you step on the foot switch)
to penetrating as you enter the skin and as you move around.
Instek responds faster to adjust current with consistent speed under different pressures as the needle moves against the skin through the
varying conditions of tattooing."
Oh. They're not talking about a meter needle on the p/s, they're talking about a tattoo needle!
You'll all be happy to know that
"Gone are the days of garage-tattoo artist manufacture.
No tattoo supplier is ISO-9001 Certified Manufacturer of Electronic Equipment."
The wonder of modern electronics.
http:
Dan