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Using Vector Control Mode
Set the Control Mode Selection (n002) to use vector control mode.
n002 = 0: V/f control mode (factory setting)
Precautions for Voltage Vector Control Application
Vector control requires motor constants. The factory settings constants
have been set at the factory prior to shipment. Therefore, when a motor
designed for an Inverter is used or when a motor from any other manu-
facturer is driven, the required torque characteristics or speed control
characteristics may not be maintained because the constants are not suit-
able. Set the following constants so that they match the required motor
constants.
Con-
stant
No.
Motor Rated Slip
n106
Motor Line-to-
n107
neutral Resis-
tance
Motor Rated Cur-
n036
rent
Motor No-load
n110
Current
* Setting depends on Inverter capacity. (Refer to pages 235 and 235.)
Adjustment of the Torque Compensation Gain (n103) and the Torque
Compensation Time Constant (n104) is normally not required.
Adjust the torque compensation time constant under the following con-
ditions:
• Increase the setting if the motor generates vibration.
• Reduce the setting if response is slow.
Adjust the Slip Compensation Gain (n111) while driving the load so that
the target speed is reached. Increase or decrease the setting in incre-
ments of 0.1.
54
1: Vector control mode
Name
Unit
0.1 Hz
0.001
(less than 10 )
0.01
(10
or more)
0.1 A
1%
Setting
Factory
Range
Setting
0.0 to
20.0 Hz
0.000 to
65.50
0% to 150%
of Inverter
rated current
0% to 99%
(100% =
motor rated
current)
*
*
*
*
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