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Selection and protection of a motor
4
PARAMETERS
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
Number
Name
Initial
Value
Setting Range Description
71 Applied motor
0
0 to 8, 13 to 18, 20, 23, 24, 30,
33, 34, 40, 43, 44, 50, 53, 54
By selecting a standard motor or constant
torque motor, thermal characteristic and
motor constants of each motor are set.
80 Motor capacity
9999
55K or lower 0.4 to 55kW
Set the applied motor capacity.
75K or higher 0 to 3600kW
9999 V/F control
81 Number of motor poles
9999
2, 4, 6, 8, 10 Set the number of motor poles.
12, 14, 16, 18, 20
X18 signal-ON:V/F
control
Set 10 + number of
motor poles.
9999 V/F control
82
Motor excitation
current
9999
55K or lower 0 to 500A Tuning data
(The value measured by offline auto
tuning is automatically set.)
75K or higher 0 to 3600A
9999
Use the Mitsubishi motor (SF-JR, SF-HR,
SF-JRCA, SF-HRCA, SF-V5RU (1500r/
min series), etc.) constants
83 Rated motor voltage
200/
400V*
0 to 1000V
Set the rated motor voltage(V).
* The initial value differs according to the
voltage level. (200V/400V)
84 Rated motor frequency
60Hz 10 to 120Hz Set the rated motor frequency (Hz).
90 Motor constant (R1) 9999
55K or lower 0 to 50Ω, 9999
Tuning data
(The value measured by offline auto
tuning is automatically set.)
9999: Use the Mitsubishi motor (SF-JR,
SF-HR, SF-JRCA, SF-HRCA, SF-V5RU
(1500r/min series), etc.) constants
75K or higher
0 to 400mΩ,
9999
91 Motor constant (R2)
9999
55K or lower 0 to 50Ω, 9999
75K or higher
0 to 400mΩ,
9999
92 Motor constant (L1)
9999
55K or lower
0 to 50
Ω,
(0 to 1000mH)
,
9999
75K or higher
0 to 3600mΩ
(0 to 400mH)
,
9999
93 Motor constant (L2)
9999
55K or lower
0 to 50
Ω
(0 to 1000mH)
,
9999
75K or higher
0 to 3600mΩ
(0 to 400mH)
,
9999
94 Motor constant (X) 9999
55K or lower
0 to 500Ω
(0 to 100%)
,
9999
75K or higher
0 to 100Ω
(0 to 100%)
,
9999
96
Auto tuning setting/
status
0
0 Offline auto tuning is not performed
1
Offline auto tuning is performed without
motor running
101
Offline auto tuning is performed with
motor running
450 Second applied motor 9999
0 to 8, 13 to 18, 20,
23, 24, 30, 33, 34, 40, 43, 44,
50, 53, 54
Set when using the second motor.
(same specifications as Pr. 71)
9999 Not function
Magnetic flux
Magnetic flux
Magnetic flux
Sensorless
Sensorless
Sensorless
Vector
Vector
Vector