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Fig. 7-14 V/F curve Fig. 7-15 Multi-point V/F curve
P07.00=1: User-defined curve, applicable to segmented constant torque loads, as shown in Fig. 7-14.
In Fig. 7-15, F1 < F2 < F3 < Fb, Fb is the basic operating frequency, which is generally the rated frequency of the motor.
V1 ≤ V2 ≤ V3 ≤ 380.
Cut-off frequency of torque boost
For torque compensation at low frequency, the output voltage needs to be boosted. P07.01 is relative to the maximum
output voltage. When set to 0, it indicates automatic torque boost; when set to a non-zero value, it indicates manual
torque boost, as shown in Fig. 7-16.
P07.02 defines the cut-off frequency for manual torque boost, which is fz shown in Fig. 7-16. This cut-off frequency is
applicable to any V/F curve selected by P07.00.
Fig. 7-16 Torque boost (boosted amount is the shaded area)
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