User manual

Chapter 5 Parameter Introductions
Voltage %
Frequency (Hz)
P0.14
P0.16
Basic Frequency
(P0.06)
P0.18
100%
P0.13 P0.15 P0.17
Fig. 5-0-3 V/F-curve defined by user
Range: 0.0～3 0.0%
P0.19 Torque boost mode
【S2R4GB～3004GB:40%;
35R5GB/37R5PBand below:0.0%】
Note:
In order to compensate the torque dropping at low frequency, the inverter can boost the
voltage to boost the torque. If P0.19 is set to 0, magnetic flux vector modulation is
enabled and if P0.19 is set to non-zero, manual torque boost is enabled, as shown in Fig.
5-0-4.
Output voltage
Output Freq.
Basic operation frequencyCut-off Freq. for torque boost
Manual
torque boost
Max output
voltage
Fig. 5-0-4 Manual torque boost diagram
(shadow area is the boost value)
 Tips:
1. Wrong parameter setting can cause overheat or over-current protection of the motor.
2. When the inverter drives synchronous motor, torque boost function is recommended
to be used and V/F curve should be adjusted according to the motor parameters.
P0.20 Cut-off point used for manual
torque boost
Range: 0.00～50.00Hz
【16.67 Hz】
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