Lenze TCF Series - Manual (Page 67)

A.3 ENHANCED V/Hz MODE
In cases where Vector mode is not appropriate, the TCF Series drive can be operated in
Enhanced V/Hz mode to achieve maximum V/Hz performance . Use the following procedure
to configure the drive for Enhanced V/Hz mode:
1 . Connect the drive to the motor according to the diagram in Section 9 - TCF
POWER WIRING DIAGRAM .
2 . Apply power to the drive .
3 . Set Parameter 80 - DRIVE MODE to ENHANCED CONSTANT V/Hz (03) or
ENHANCED VARIABLE V/Hz (04), depending on whether the application
is constant torque or variable torque . If the application is a centrifugal
fan or pump select ENHANCED VARIABLE V/Hz (04) . Otherwise, select
ENHANCED CONSTANT V/Hz (03) .
4 . Set Parameter 86 and 87 according to the motor's nameplate data .
5 . Set Parameter 81 - AUTO CALIBRATION to CALIBRATION CYCLE
ENABLED (01) . The drive's display will alternate between "CAL" and "- - -" .
6 . Make sure the motor is cold (rotor and windings are at room temperature of
20° to 25° C), and give the drive a START command using one of the Start/
Stop circuits shown in Section 11 - TCF CONTROL WIRING DIAGRAMS . The
drive's display should indicate "CAL" for about 40 seconds while the calibration
procedure is performed . Once the calibration is done, the display will show "- -
-" to indicate that it is stopped . The drive is now ready to be operated . Give the
drive another START command to actually start the motor .
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