8
MOTOR CONTROL
P178 - Rated Flux
Range: 50.0 to 150.0 %
Properties: VVW
Description:
It defines the desired flux in the motor air gap in percentage (%) of the rated flux. In general, it is not necessary
to modify the value of P178 of the standard value of 100,0 %. However, some specific situations may use values
slightly above to increase the torque, or below to reduce the energy consumption.
P399 - Motor Rated Efficiency
Range: 50.0 to 99.9 %
Properties: cfg, VVW
Description:
This parameter is important for the precise operation of the VVW control. A misconfiguration will cause incorrect
calculation of the slip compensation, reducing the performance of the speed control.
P400 - Motor Rated Voltage
Range: 0 to 480 V
Properties: cfg, VVW
Description:
Set according to the data on the motor nameplate and the wire connection on the motor terminal box. Default
values are shown in the Table 8.7 on page 8-32. This value cannot be above the rated voltage value set in P296
(power supply rated voltage).
Table 8.7: Default setting of P400 according to the identified inverter model
P296 P145 (Hz) P400 (V)
0 Reserved Reserved
50,0 230
1
60,0 220
50,0 230
2
60,0 220
3 Reserved Reserved
4 50/60 380
5 50/60 415
6 50/60 440
7 50/60 480
For further information on model identification, refer to Table 6.1 on page 6-2 of Chapter 6 FREQUENCY INVERTER
IDENTIFICATION on page 6-1.
P401 - Motor Rated Current
Range: 0.0 to 40.0 A
Properties: cfg, VVW
Description:
It defines the rated motor current. Parameter P401 must be set according to the information on the motor
nameplate, taking into account the motor voltage.
8-32 | Micro Mini Drives
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