Lenze MC3000 Series Manual de usuario descargar pdf (Pagina 55)

13435743_EDBM301_v14.0 51

FX BOOST FACTORY DEFAULT SETTINGS

FAC TORY

DEFAULT

FAC TORY

DEFAULT

0.25 - 1 5.30 % 15 2.20 %

1.5 - 2 4.40 % 20 2.00 %

3 3.60 % 25 1.80 %

5 3.00 % 30 1.60 %

7.5 2.70 % 40 1.20 %

10 2.40 % 50 - 60 0.80 %

The diagram below illustrates how FX BOOST alters the V/Hz ratio to increase motor

torque.

The FX BOOST setting represents the amount of boost at 0 Hz (approximately 15% in the

example below), and as the output frequency approaches 30 Hz, the boost decreases to

zero. Therefore, at 30 Hz and above, the V/Hz ratio returns to its “normal” state.

OUTPUT FREQUENCY (Hz)

OUTPUT VOLTAGE (%)

FX BOOST

CONSTANT V/Hz

20 30

40 50 60

100

22 TORQUE (TORQUE CURVE SELECTION)

This parameter is used to select whether the output of the drive follows a constant or

variable V/Hz curve. The following selections are available:

CONSTANT Use for constant torque applications to optimize torque.

VARIABLE Use for variable torque applications to optimize energy savings.

CT / NOCMP Use for constant torque applications that require full overload

capacity at low speeds (refer to Parameter 17 - MOTOR OL).

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Lenze MC3000 Series Manual de usuario Pagina 55