11-27
11
Vector Control
Description:
This parameter is automatically adjusted during the self-tuning.
This parameter can also be calculated from the motor data sheet (
Item 11.7.1 Adjustment of the Parameters P0409
to P0412 Based on the Motor Data Sheet on page 11-15
).
The P0412 setting determines the flux regulator gains (P0175 and P0176).
The value of this parameter interferes in the speed accuracy in the sensorless vector control. It may also affect the
motor torque on the vector with encoder.
Normally the self-tuning is performed with the motor cold. Depending on the motor, the P0412 value may vary
more or less with the motor temperature. Thus, for the sensorless vector control and normal operation with the
motor warm, P0412 must be adjusted until the speed of the motor with load (measured at the motor shaft with a
tachometer) stays equal to that one indicated on the keypad (HMI) (P0001).
This adjustment must be performed with half the rated speed.
For P0202 = 4 (vector with encoder), if P0412 is incorrect, the motor will loose torque. Thus, one must adjust P0412
so that at half the rated speed, and with stable load, the motor current (P0003) stays the lowest possible.
In the sensorless vector control mode the P0175 gain, provided by the self-tuning, will be limited in the range:
3.0≤P0175≤8.0.
Table 11.7 -
Typical rotor constant (T
r
) values for WEG motors
Motor Power (hp) / (kW)
T
r
(s)
Number of Poles
2 (50 Hz/60 Hz)
4 (50 Hz/60 Hz)
6 (50 Hz/60 Hz)
8 (50 Hz/60 Hz)
2 / 1.5
0.19 / 0.14
0.13 / 0.14
0.1 / 0.1
0.07 / 0.07
5 / 3.7
0.29 / 0.29
0.18 / 0.12
0.14 / 0.14
0.14 / 0.11
10 / 7.5
0.36 / 0.38
0.32 / 0.25
0.21 / 0.15
0.13 / 0.14
15 / 11
0.52 / 0.36
0.30 / 0.25
0.20 / 0.22
0.28 / 0.22
20 / 15
0.49 / 0.51
0.27 / 0.29
0.38 / 0.2
0.21 / 0.24
30 / 22
0.70 / 0.55
0.37 / 0.34
0.35 / 0.37
0.37 / 0.38
50 / 37
0.9 / 0.84
0.55 / 0.54
0.62 / 0.57
0.31 / 0.32
100 / 75
1.64 / 1.08
1.32 / 0.69
0.84 / 0.64
0.70 / 0.56
150 / 110
1.33 / 1.74
1.05 / 1.01
0.71 / 0.67
0.72 / 0.67
200 / 150
1.5 / 1.92
1.0 / 0.95
1.3 / 0.65
0.8 / 1.03
300 / 220
1.5 / 2.97
1.96 / 2.97
1.33 / 1.30
0.9 / 1.0
350 / 250
1.4 / 1.8
1.86 / 1.85
1.3 / 1.53
0.9 / 1.0
500 / 375
1.36 / 1.7
1.9 / 1.87
1.2 / 1.3
0.9 / 1.0
NOTE!
When adjusted via the keypad (HMI), this parameter may change automatically the following
parameters: P0175, P0176, P0327 and P0328. For motors larger than 500 CV, contact WEG.
P0413 – T
m
Constant (Mechanical Time Constant)
Adjustable
Range:
0.00 to 99.99 s
Factory
Setting:
0.00 s
Properties:
Vector
Access groups
via HMI:
01 PARAMETER GROUPS
05 SELF-TUNING
29 Vector Control
or
94 Self-tuning
Содержание CFW-11 Series
Страница 2: ......
Страница 54: ...2 4 2 General Information ...
Страница 58: ...About the CFW 11 3 3 4 ...
Страница 74: ...Inverter Model and Accessories Identification 5 14 6 ...
Страница 86: ...Inverter Model and Accessories Identification 6 12 6 ...
Страница 94: ...Available Control Types 8 2 8 ...
Страница 118: ...VVW Control 10 8 10 ...
Страница 182: ...Functions Common to All the Control Modes 12 26 12 ...
Страница 220: ...Dynamic Braking 14 4 14 ...