GE VAT2000 Instruction Manual page 26

3-6-2 IM speed sensor-less vector control (C30-0 = 3) and
IM vector control with speed sensor (C30-0 = 4) automatic tuning
(1) Automatic tuning
The Auto-tuning for the IM speed sensor-less vector control or IM vector control with speed sensor
can be performed in two modes, basic or extended. The mode selection is allowed by parameter
(B19-0). (Note 1)
1) B19-0 = 3: Mode 3: Vector control basic adjustment mode (Execution time: approx. 30 seconds)
The drive automatically adjusts basic parameters for vector control.
The following parameters are automatically adjusted by executing Mode 3.
Parameter No.
2) B19-0 = 4: Mode 4: Vector control expanded adjustment mode (Execution time: approx. 1 minute)
This mode is selected for constant power range operation only. (Note 2)
The following parameters are automatically adjusted by executing Mode 4.
Parameter No.
(Note 1) The automatic tuning function (B19-0) cannot be used in modes other than control selected
with the parameter (C30-0). When C30-0 is set to 3 or 4, the following cannot be selected.
B19-0 = 1: Mode 1: V/f control basic adjustment mode
B19-0 = 2: Mode 2: V/f control extended adjustment mode
(Note 2) When the motor works under constant power operation, the excitation inductance
fluctuation must be compensated.
Assign the operation range to the reference speed table in B33-0 to 7.
Note that the motor will rotate to the max. speed in this case, so take special care to safety.
3. Test Operation and Adjustment
Table 3-6-4
B01-8 No-load output voltage
B02-0, 1 R1 : Primary resistance
B02-2, 3 R2 : Secondary resistance
L σ : Leakage inductance
B02-4, 5
B02-6, 7
M' : Excitation inductance
Table 3-6-5
B01-9 No-load output voltage
B02-0, 1 R1 : Primary resistance
B02-2, 3 R2 : Secondary resistance
L σ : Leakage inductance
B02-4, 5
B02-6, 7
M' : Excitation inductance
B34-0 to 7
M variable compensation table
Name
Name
3-9