WEG MVW3000 Series, Programming Manual

Page: 157 / 264

5
DETAILED PARAMETER DESCRIPTION
Description:
Field ramp time in seconds, used in the field regulator reference.
Used in the field soft-start.
✓
NOTE!
This parameter is only visible on HMI when: P0950 = 1 (Synchronous motor with brushes) or
P0950 = 2 (Brushless synchronous motor).
This parameter is only visible on the HMI when: the control type is scalar, P0202 = 0, 1 or 2 (V/F
control).
P0454 - Coefficient A1 of the Polynomial of the magnetic saturation curve
Adjustable range: 0.000 to 9.999 Factory setting: 0.000
Acesso: Menu
→
Configurations
→
Control
Description:
Coefficient of the polynomial of the magnetic saturation curve.
The machine operates with linear flux up to the point in which the linear curve follows the saturation curve; from
this point the machine flux follows a mathematical model obtained from the data of the motor manufacturer.
Magnetic saturation curve
0 5 10 15 20
0
0,5
1
1,5
2
2,5
3
3,5
4
Flux (PU)
Field current (A)
Linear curve
Saturation curve
Figure 5.43: Typical saturation curve and mathematical approximations used by the inverter for flux control
✓
NOTE!
For further information, contact WEG Technical Assistance.
✓
NOTE!
This parameter is only visible on the HMI when: P0950 = 1 (Synchronous motor with brushes).
This parameter is only visible on the HMI when: the control type is vector, P0202 = 3 (Sensorless
Vector) or P0202 = 4 (Vector with Encoder).
P0455 - Coefficient B1 of the Polynomial of the magnetic saturation curve
Adjustable range: 0.000 to 9.999 Factory setting: 0.174
Acesso: Menu
→
Configurations
→
Control
MVW3000 | 5-81