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PARAMETERS
5
Selection and protection of a motor
5.9.3 Exhibiting the best performance for the motor (offline auto tuning)
(Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 859)
The above parameters can be set when Pr. 160 User group read selection = "0".(Refer to page 167)
The motor performance can be maximized with offline auto tuning.
What is offline auto tuning?
When performing Advanced magnetic flux vector control or General-purpose magnetic flux 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 (30m
or more as a reference).
Parameter
Number
Name Initial Value Setting Range Description
71 Applied motor
0
0, 1, 3 to 6,
13 to 16, 23, 24, 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
0.1 to 15kW Applied motor capacity.
9999 V/F control
81 Number of motor poles
9999
2, 4, 6, 8, 10 Number of motor poles.
9999 V/F control
82 Motor excitation current
9999
0 to 500A
Tuning data
(The value measured by offline auto tuning is
automatically set.)
9999
Uses the Mitsubishi motor (SF-JR, SF-HR,
SF-JRCA, SF-HRCA) constants.
83 Rated motor voltage
200V class 200V
0 to 1000V Rated motor voltage (V).
400V class 400V
84 Rated motor frequency
60Hz 10 to 120Hz Rated motor frequency (Hz).
90 Motor constant (R1)
9999 0 to 50Ω, 9999
Tuning data
(The value measured by offline auto tuning is
automatically set.)
9999: Uses the Mitsubishi motor (SF-JR, SF-
HR, SF-JRCA, SF-HRCA) constants.
91 Motor constant (R2)
9999 0 to 50Ω, 9999
92 Motor constant (L1)
9999 0 to 1000mH, 9999
93 Motor constant (L2)
9999 0 to 1000mH, 9999
94 Motor constant (X)
9999 0 to 100%, 9999
96
Auto tuning setting/
status
0
0 Offline auto tuning is not performed
1
For Advanced magnetic flux vector control
Offline auto tuning is performed without motor
running (all motor constants).
11
For General-purpose magnetic flux vector
control
Offline auto tuning is performed without motor
running.
(motor constant (R1) only)
21
Offline auto tuning for V/F control (automatic
restart after instantaneous power failure (with
frequency search)) (Refer to page 153)
859 Torque current
9999
0 to 500A
Tuning data
(The value measured by offline auto tuning is
automatically set.)
9999
Uses the Mitsubishi motor (SF-JR, SF-HR,
SF-JRCA, SF-HRCA) constants.