Offline Auto Tuning (Pr. 71, Pr. 80 To Pr. 84, Pr. 90 To Pr. 94, Pr. 96, Pr. 450, Pr. 453 To Pr. 463, Pr. 684, Pr. 859, Pr. 860) - Mitsubishi Electric FR-A720-0.4K Instruction Manual

4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84 , Pr. 90 to Pr. 94 , Pr. 96 , Pr. 450,
Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860
The motor performance can be maximized with offline auto tuning.
• What is offline auto tuning?
When performing Advanced magnetic flux vector control, Real sensorless vector control or vector control, the
motor can be run with the optimum operating characteristics by automatically measuring the motor constants
(offline auto tuning) even when each motor constants differs, other manufacturer's motor is used, or the wiring
length is long.
Parameter
Name
Number
71 Applied motor
80 Motor capacity
81 Number of motor poles
Motor excitation
82
current
83 Rated motor voltage
84 Rated motor frequency
90 Motor constant (R1)
91 Motor constant (R2)
92 Motor constant (L1)
93 Motor constant (L2)
94 Motor constant (X)
Auto tuning setting/
96
status
450 Second applied motor
)
Magnetic flux Magnetic flux Magnetic flux
Initial
Setting Range
Value
0 to 8, 13 to 18, 20, 23, 24, 30,
0
33, 34, 40, 43, 44, 50, 53, 54
55K or lower 0.4 to 55kW
9999 75K or higher 0 to 3600kW
9999
2, 4, 6, 8, 10
9999 12, 14, 16, 18, 20
9999
55K or lower 0 to 500A
75K or higher 0 to 3600A
9999
9999
200/
0 to 1000V
400V*
60Hz 10 to 120Hz
55K or lower 0 to 50Ω, 9999
9999
0 to 400mΩ,
75K or higher
55K or lower 0 to 50Ω, 9999
9999
0 to 400mΩ,
75K or higher
55K or lower (0 to 1000mH),
9999
0 to 3600mΩ
75K or higher (0 to 400mH),
55K or lower (0 to 1000mH),
9999
0 to 3600mΩ
75K or higher (0 to 400mH),
0 to 500Ω
55K or lower (0 to 100%),
9999
0 to 100Ω
75K or higher (0 to 100%),
0
1
0
101
0 to 8, 13 to 18, 20,
23, 24, 30, 33, 34, 40, 43, 44,
9999
50, 53, 54
9999
Selection and protection of a motor
Sensorless Sensorless Sensorless Vector Vector Vector
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
Tuning data
(The value measured by offline auto
tuning is automatically set.)
Use the Mitsubishi motor (SF-JR, SF-HR,
SF-JRCA, SF-HRCA, SF-V5RU (1500r/
min series), etc.) constants
Set the rated motor voltage(V).
* The initial value differs according to the
voltage level. (200V/400V)
Set the rated motor frequency (Hz).
9999
9999
0 to 50Ω,
9999
Tuning data
(The value measured by offline auto
tuning is automatically set.)
9999
9999: Use the Mitsubishi motor (SF-JR,
0 to 50Ω
SF-HR, SF-JRCA, SF-HRCA, SF-V5RU
(1500r/min series), etc.) constants
9999
9999
9999
9999
Offline auto tuning is not performed
Offline auto tuning is performed without
motor running
Offline auto tuning is performed with
motor running
Set when using the second motor.
(same specifications as Pr. 71)
Not function
Set 10 + number of
motor poles.
4
189