Process control

EIRCHYD · Jul 26, 2011

I am building a 20Kw diesel generator set and would like to monitor the voltage and frequency using an AB 5/04. Any suggestions? Although I am a welder / fabricator as well as a fluid power technician, I am familiar with AB PLC's and programming.

vettedrivr · Jul 26, 2011

If you just want to monitor the parameters, there are plenty of voltage/power/current/frequency transducers to pick from. I have had good luck with Ohio Semitronics transducers. Wire the output of the transducer (0-10v, 4-20mA, whatever it may be) into an analog input card set to match whatever the transducer is putting out. Scale the input data into whatever format you want in the program. Hope this helps

nonuke · Jul 27, 2011

Siemens has a power meter "Sentron PAC3200" with an option of a Profibus DP communication that can send more than 10 variables: Volts, Amps, PF, Hz, Apparent, Active, Reactive power, Hours, Min and Max values etc.

harryting · Jul 27, 2011

Also take a look at SEL 2411. It's a small PLC designed for the power world and got A, V, sensing built in. The basic software is free.

Joe_WaZoo · Jul 27, 2011

I have used a device called Watts-ON that would monitor all of the parameters you are looking for. I then connected that device to a Red Lion DataStation Plus device that would give me a web page and data log the info. Here are some photos of that system. http://www.joewazoo.com//Bus_Applications/RedLion/ekg_100125/ekg_100125.html

Thanks,
Joe_WaZoo

Joe_WaZoo · Jul 27, 2011

Here is some more pics:

http://www.joewazoo.com//Bus_Applications/Wireless/EKG_091114/ekg_091114.html

Joe_WaZoo

Joe_WaZoo · Jul 27, 2011

Here is the Watts-ON device.

http://www.elkor.net/WattsOn.htm

Joe_WaZoo

KalleOlsen · Jul 27, 2011

We have just connected this PQube to one of our customers incomers, and I am very curious what will happen when we energize it after the summer holidays (where will the smoke come?). The box can measure "everything" and has a web interface. It could be worth a closer look:

http://www.powerstandards.com/index.htm

Here are living PQubes on the web: http://map.pqube.com/

Check the file lists to see the trend curves.

Kalle

Process control

EIRCHYD

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Joe_WaZoo

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