Advanced Magnetic Flux Vector Control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450, Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800) - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

4.8.2 Advanced magnetic flux vector control (Pr. 71, Pr. 80, Pr. 81, Pr. 89, Pr. 450,
Pr. 451, Pr. 453, Pr. 454, Pr. 569, Pr. 800)
Advanced magnetic flux vector control can be selected by setting the capacity, number and type of motor to be
used in Pr. 80 and Pr. 81.
What is Advanced magnetic flux vector control?
The low speed torque can be improved by providing voltage compensation to flow a motor current which meets
the load torque. Output frequency compensation (slip compensation) is made so that the motor actual speed
approximates a speed command value. Effective when load fluctuates drastically, etc.
Parameter
Name
Number
71 Applied motor
80 Motor capacity
81 Number of motor poles
Speed control gain
89 (Advanced magnetic flux
vector)
450 Second applied motor
Second motor control
451
method selection
453 Second motor capacity
Number of second motor
454
poles
Second motor speed
569
control gain
800 Control method selection
* Use Pr. 178 to Pr. 189 to assign the terminals used for the X18 and MC signal. (Refer to page 235 )
Magnetic flux Magnetic flux Magnetic flux
Initial Setting Range
Value 200V Class (400V Class)
0 to 8, 13 to 18,
0 20, 23, 24, 30, 33, 34, 40,
43, 44, 50, 53, 54
02150(01100)
0.4 to 55kW
or less
9999 02880(01440)
0 to 3600kW
or more
9999
2, 4, 6, 8, 10
9999 12, 14, 16, 18, 20
9999
0 to 200%
9999
9999
0 to 8, 13 to 18,
20, 23, 24, 30, 33, 34, 40,
9999
43, 44, 50, 53, 54
9999
10, 11, 12
9999
20, 9999
02150(01100)
0.4 to 55kW
or less
9999 02880(01440)
0 to 3600kW
or more
9999
2, 4, 6, 8, 10
9999
9999
0 to 200%
9999
9999
0 to 5
9
20
10, 11, 12
20
Adjustment of the output torque
(current) of the motor
Description
By selecting a standard motor or constant
torque motor, thermal characteristic and motor
constants of each motor are set.
Set the applied motor capacity.
V/F control
Set the number of motor poles.
Set 10 + number
X18 signal-ON:V/F control
*
of motor poles.
V/F control
Motor speed fluctuation due to load fluctuation
is adjusted during Advanced magnetic flux
vector control.
100% is a referenced value.
Gain matching with the motor set in Pr. 71.
Set when using the second motor.
(same specifications as Pr. 71 )
Function invalid (Pr. 71 is valid)
Real sensorless vector control
V/F control (Advanced magnetic flux vector
control)
Set the capacity of the second motor.
V/F control
Set the number of poles of the second motor.
V/F control
Second motor speed fluctuation due to load
fluctuation is adjusted during Advanced
magnetic flux vector control.
100% is a referenced value.
Gain matching with the motor set in Pr. 450.
Vector control
Vector control test operation
Real sensorless vector control
V/F control (Advanced magnetic flux vector
control)
4
147