GE VAT2000 Instruction Manual page 29

1) Preparation
Separate the motor and load, machine, etc., and confirm the safety on the load side.
2) Selection of control method
• Set A05-2 to 1. (enables parameter display)
• By parameter (C30-0), select V/f control according the load conditions
IM speed sensor-less vector control (C30-0 = 3), ( Default value)
IM vector control with speed sensor (C30-0 = 4)
* The default value is V/f control (constant torque) (C30-0 = 1).
3) Initialisation of motor constants
Input the motor rating nameplate value parameters. Automatic tuning will automatically change the
parameters, so it is recommended to write down the values set in table 3-6-4 or table 3-6-5.
Parameter No.
B01-0
B01-1
B01-2
B01-3
B01-4
B01-5
B01-6
B01-7
B01-8
* When the motor works under constant power operation, the excitation inductance fluctuation
must be compensated.
Assign the operation range to the table reference speed in B33-0 to 7.
Note that the motor will rotate to the max. speed in this case, so take special care to safety.
* The max. speed cannot be set below the base speed, and the base speed cannot be set
above the max. speed.
(Note 1) During IM speed sensor-less vector control (C30-0 = 3), it is recommended to set the
carrier frequency to 10KHz to improve the current detection accuracy.
(Note 2) Always enter encoder pulse numbers when using the speed sensor.
4) Selection of automatic tuning function
• Set A05-0 to 1. (enables parameter display)
• By parameter (B19-0), select the automatic tuning mode according working conditions. Refer to
section 3-6-1 for details.
• The automatic tuning will star when the
• During the automatic tuning state, the LCL LED will blink.
• To abort the automatic tuning standby state, press the
3. Test Operation and Adjustment
Table 3-6-6
Rated input voltage setting
Motor rated output
No. of motor poles
Rated output voltage
Max. speed
Base speed
Motor rated current
Carrier frequency
No. of encoder pulses
3-12
Name
[V]
[kW]
[Pole]
[V]
1
[min ]
−
1
[min ]
−
[A]
[kHz] : (Note 1)
[P/R] : (Note 2)
key is pressed.
key.