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-A720-0.4K Instruction Manual

Adjust the output torque of the motor (current)
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)
Pr.70
Advanced magnetic flux vector control can be selected by setting the capacity, number and type of motor to be
page 197
used in Pr. 80 and Pr. 81.
Pr.72
What is advanced magnetic flux vector control?
page 271
The low speed torque can be improved by providing voltage compensation so that the motor current which
Pr.79
page 295
meets the load torque to flow. Output frequency compensation (slip compensation) is made so that the motor
Pr.82
actual speed approximates a speed command value. Effective when load fluctuates drastically, etc.
page 181
Pr.386
Parameter
page 358
Number
Pr.455
page 181
71 Applied motor
Pr.564
page 242
Pr.571
page 170
80 Motor capacity
Pr.684
page 181
Pr.803
page 98
81 Number of motor poles
Speed control gain
89
(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 221 )
POINT
If the following conditions are not satisfied, select V/F control since malfunction such as insufficient torque and
uneven rotation may occur.
• The motor capacity should be equal to or one rank lower than the inverter capacity. (note that the capacity should
be 0.4kW or more)
• Motor to be used is either Mitsubishi standard motor (SF-JR, SF-HR two-pole, four-pole, six-pole 0.4kW or more)
or Mitsubishi constant torque motor (SF-JRCA, SF-HRCA 200V class four-pole 0.4kW to 55kW). When using a
motor other than the above (other manufacturer's motor), perform offline auto tuning without fail.
• Single-motor operation (one motor run by one inverter) should be performed.
• The wiring length from inverter to motor should be within 30m. (Perform offline auto tuning in the state where
wiring work is performed when the wiring length exceeds 30m.)
• For 75K or more, do not use an option sine wave filter (MT-BSL/BSC) between the inverter and motor.
144
Initial
Name
Value
0
9999
9999
9999
9999
9999
9999
9999
9999
20
Magnetic flux Magnetic flux Magnetic flux
Setting Range
0 to 8, 13 to 18,
20, 23, 24, 30, 33, 34, 40,
43, 44, 50, 53, 54
55K or less 0.4 to 55kW
75K or more 0 to 3600kW
9999
2, 4, 6, 8, 10
12, 14, 16, 18, 20
9999
0 to 200%
9999
0 to 8, 13 to 18,
20, 23, 24, 30, 33, 34, 40,
43, 44, 50, 53, 54
9999
10, 11, 12
20, 9999
55K or less 0.4 to 55kW
75K or more 0 to 3600kW
9999
2, 4, 6, 8, 10
9999
0 to 200%
9999
0 to 5
9
10, 11, 12
20
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.
X18 signal-ON:V/F control
*
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. 451.
Vector control
Vector control test operation
Real sensorless vector control
V/F control (advanced magnetic flux vector
control)
Set 10 + number
of motor poles.