The frequency converter speed circuit with a triple speeds setting case

Published:2011/7/5 6:36:00 Author:Borg | Keyword: frequency converter, speed circuit | From:SeekIC

FR—AT is a triple speed setting case. When the motor M is running, different speeds are often needed at some moment, such as polishing, stirring, dehydrating, centrifuging, grinding and washing equipment and others, they often need multi-stage speeds in the processes, at this moment, the circuit in the figure can be chosen. The triple speeds selection can be done by the manual switches of S1, S2 and S3. The wire that links FR-AT to the frequency converter should be the insulated.



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