gado Posted July 21, 2008 Report Share Posted July 21, 2008 Gents, I am re-posting this query because maybe you guys doesnt understand my query due to typographical error. We are using a Telemecanique Altivar61 on our pumps with the 4-20mA input to the VSD comes from a DCS system. I am a bit confused why our pumps here with same ratings is geting different frequency displays. Is it due to improper parameter set-up? If anyone who is familiar with this drive, can you please explain what is the difference and functions of the following: 1. Reference Frequency 2. Output frequency 3. Measured Frequency TIA gado Link to comment Share on other sites More sharing options...
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