Variable torque fan/pump applications – Rockwell Automation 22B PowerFlex 40 FRN 1.xx - 6.xx User Manual
Page 41
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PowerFlex 40 Adjustable Frequency AC Drive FRN 1.xx - 6.xx User Manual
Publication 22B-UM001H-EN-E
TIP: You can also change the speed reference by editing the parameter
[Internal Freq] in program mode. For details on how to enter the
program mode, see
Viewing and Editing Parameters on page 2-5
Note: The default value of
[Internal Freq] is 0 Hz. For IP20 rated
PowerFlex 40 drives, the default value of this parameter is 60 Hz.
Variable Torque Fan/Pump Applications
For improved motor tuning performance when using a premium efficient
motor on a variable torque load, set
“35.0, VT”.
22B-UM001.book Page 3 Wednesday, January 22, 2014 11:04 AM
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