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Vfd For Compressor


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#1 rahuljadhav1

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Posted 19 June 2008 - 07:00 AM

Dear sir

I want to use VFD for a 75KW motor air copressor unit. I have Presure feedback as 4-20 mA. How i can use this f/b to do this application? Loading is around 60%.



Regards

Rahul

#2 marke

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Posted 21 June 2008 - 09:11 PM

Hello Rahul

I assume that you wish to run at a constant pressure.

To operate the VFD at a constant pressure, enable the PID control within the drive and use in internal or external reference to set the pressure as the PID set point, and use the pressure transducer as the feedback for the PID.

I do not know which drive you are using, but I am sure that if you refer to the manual, you will see how to achieve this.

I can give examples for the Emotron and Control Techniques drives if you are stuck.

Best regards,
Mark.

#3 ratandb

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Posted 04 March 2011 - 06:40 PM

hello marke!!!!
i have same application in emotron ac drive if you can provide me detail about configuration in emotron ac drive

#4 marke

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Posted 04 March 2011 - 08:38 PM

Which Emotron drive are you considering?

Best regards,
Mark.




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