TDE MACNO MINIOPD EXP User Manual page 22

102
K
φ
100
98
96
94
92
90
88
86
84
82
80
45,0 55,0
The term K φ is equal to:
i.e. it is the coefficient that when multiplied by the normalized flux in relation to the rated flux gives
the normalized flux current in relation to the magnetizing current.
The characteristic is assumed to be constant for normalized fluxes under 45%.
At the end of these readings, the results will be shown in the parameters below, which may still be
changed by the user.
1 2
φ /
45.0% 55.0%
φ NOM
P131 P133
K φ
..... ......
The magnetizing current may also be viewed in the parameter below:
PRC_MOT_I_FLX_NOM
2.1.5.1.4 TEST 4: READING THE ROTOR TIME CONSTANT AND
ESTIMATING THE STATOR TIME CONSTANT
This test establishes the rotor time constant from the motor and helps to estimate the stator time
constant by using data from other auto-tuning values.
During the test, the motor is rotated at the same speed as the previous test and then it goes in free
revolution
During the test, the motor rotates at a speed equal to about 80% of the rated speed and is
temporarily left to idle.
The following parameters are modified at the end of the test:
22
65,0 75,0
Id Iφ
Φ Φ
3 4 5
65.0% 75.0% 82.0%
P135 P137 P139
...... ...... ......
Name
P73 - Nominal flux current
82,0 88,0 93,0 97,0 100,0 102,0
NOM
6 7 8
88.0% 93.0% 97.0%
P141 P143 P145
....... ....... .......
Description
φ / φ
NOM
9 10
100.0% 102.0%
P147 P149
...... ......