Note - GE VAT300 Series Quick Manual

4-5 Initialization of motor constants
Input the motor rating parameters. Set the parameters shown in Table 4-5-1. Automatic tuning will
automatically change the parameters, so it is recommended to write down the values set in Table 4-5-2
or Table 4-5-3.
Applicable mode
C30-0 f0 = 1
B19-0 = 1, 2
(Note 1) The max. frequency cannot be set below the base frequency, and the base
frequency cannot be set above the max. frequency.
Applicable mode
C30-0 f0 = 1
B19-0 = 1
Applicable mode
C30-0 f0 = 1
B19-0 = 2
4-6 Automatic tuning and test operation
Automatic tuning measures the constants of the connected motor, and automatically adjusts the
parameters so that the system is used to the fullest.
The VAT300 automatic tuning function performs differ measurements for each of the four control
modes. Carry out automatic tuning each time the motor being used or the applicable control mode is
changed. The automatic tuning mode is set with parameter B19-0 (automatic tuning selection).
Control mode
• V/f control
• IM speed sensor-less vector control
• IM vector control with speed sensor
• PM motor control with sensor
B19-0
1
2
3
4
5
6
7
(Note 1) B19-0=6 : The encoder phase adjustment mode automatically adjusts the parameters
(Note 2) B19-0=7 : The magnetic pole position estimation mode is used to adjust the PM motor
Table 4-5-1
Parameter No.
B00-0
B00-1
B00-2
B00-3
B00-4
B00-5
B00-6
B00-7
Table 4-5-2
Parameter No.
A02-2 Manual torque boost setting
A03-0 DC brake voltage
B02-0, 1 R1: Primary resistance
B02-4, 5 Lσ: Leakage inductance
Table 4-5-3
Parameter No.
A02-2 Manual torque boost setting
A03-0 DC brake voltage
B02-0, 1 R1: Primary resistance
B02-4, 5 Lσ: Leakage inductance
A02-5 Slip compensation gain
A02-6 Max. torque boost gain
Simple adjustment mode
V/f control high-function adjustment mode
Vector control basic adjustment mode
Vector control expanded adjustment mode
No-load voltage operation mode
Encoder phase adjustment mode (Note 1)
Magnetic pole position estimation mode (Note 2)
which set the phase angle between the encoder Z phase pulses and PM motor
U-phase coil. The motor circuit constants are not adjusted automatically.
control magnetic pole position estimation function. This mode does not
automatically adjust the parameters.
Name
Rated input voltage setting
Max/base frequency simple setting
Motor rated output
Rated output voltage
Max. frequency (Note 1)
Base frequency (Note 1)
Motor rated current
Carrier frequency
Name
Name
Automatic tuning mode
B19-0 = 1,2
B19-0 = 3, 4, 5
B19-0 = 1, 3, 4,5
B19-0 = 6, 7
Name
EN-20
[No.]
[No.]
[kW]
[V]
[Hz]
[Hz]
[A]
Explanation
The basic parameters, such as
boost voltage and brake
voltage, are adjusted without
rotating the motor.
Explanation
The parameters related to the
slip compensation and max.
torque boost are adjusted while
rotating the motor.
The magnetic saturation
characteristics are measured at
the voltage boost, and are
adjusted to match the max.
torque boost.