Using Vector Control Mode - YASKAWA VS-606V7 Series Instruction Manual

Using Vector Control Mode

Setting the control mode selection (n002) can use a vector control mode.
n002 = 0: V/f control mode (factory setting)
1: Vector control mode
Precaution for voltage vector control application
Since vector control needs motor constants, the YASKAWA standard
motor constants have been set at the factory prior to shipment. Therefore,
when an inverter exclusive-use motor is used or when a motor of any
other manufacturer is driven the required torque characteristics or
speed control characteristics may not be maintained because the
constants are not matched. Set the following constants so that they can
match the motor constants.
No.
n106 Motor rated slip
n107 Line to neutral (per phase)
n036 Motor rated current
n110 Motor no-load current
Setting depends on inverter capacity.
*
Adjustment of touque compensation gain (n103) and torque
compensation time constants (n104) is normally not required.
Adjust torque compensation time constant under the following
conditions:
• Increase the setting when the motor generates vibration.
• Reduce the setting when response is low.
To adjust for slip compensation gain (n111), induce load so that motor
speed reaches target value. Increase or decrease the value by 0.1.
• When speed is less than target value, increase slip compensation
gain.
• When speed is more than target value, reduce slip compensation
gain.
Adjustment of slip compensation time constant (n112) is normally not
required.
Adjust under the following conditions:
• Reduce the setting when response is low.
• Increase the setting when speed is unstable.
Name
(less than 10Ω)
(10Ω or more)
Unit Setting range
0.1Hz 0.0 to 20.0Hz
0.001Ω
0.000 to 65.50Ω
0.01Ω
0 to 150% of inverter
0.1A
rated current
0 to 99%
1%
(100%=motor rated current)
Initial
setting
*
*
*
*
45