(C) Motor constant parameters
442
PARAMETERS
5.13.2 Offline auto tuning
The offline auto tuning enables the optimal operation of an motor.
• What is offline auto tuning?
Under Advanced magnetic flux vector control, real sensor vector control or vector control operation, measuring motor
constants automatically (offline auto tuning) enables optimal operation of motors even when motor constants vary,
when a motor of another company is used or when the wiring distance is long.
For the offline auto tuning for a PM motor, refer to page 452.
Pr. Name
Initial
value
Setting range Description
684
C000
Tuning data unit
switchover
0
0 Internal data converted value
1 The value is indicated with "A, , mH or %".
71
C100
Applied motor
0
0 to 6, 13 to 16, 20, 23, 24, 30,
33, 34, 40, 43, 44, 50, 53, 54,
70, 73, 74, 330, 333, 334, 8090,
8093, 8094, 9090, 9093, 9094
By selecting a motor, the thermal characteristic
and motor constant of each motor are set.
80
C101
Motor capacity
9999
0.4 to 55 kW
Set the applied motor capacity.
0 to 3600 kW
9999 V/F control
81
C102
Number of motor
poles
9999
2, 4, 6, 8, 10, 12 Set the number of motor poles.
9999 V/F control
9
C103
Electronic thermal O/
L relay
Rated
inverter
current
0 to 500 A
Set the rated motor current.
0 to 3600 A
83
C104
Rated motor voltage
200/400 V 0 to 1000 V Set the rated motor voltage (V).
84
C105
Rated motor
frequency
9999
10 to 400 Hz Set the rated motor frequency (Hz).
9999 Use the value set in Pr.3 Base frequency.
707
C107
Motor inertia
(integer)
9999 10 to 999, 9999
Set the motor inertia.
9999: Uses the constant value of Mitsubishi
motor (SF-PR, SF-JR, SF-HR, SF-JRCA, SF-
HRCA, SF-V5RU (1500 r/min series) and so on).
724
C108
Motor inertia
(exponent)
9999 0 to 7, 9999
96
C110
Auto tuning setting/
status
0
0 No offline auto tuning
1
Performs offline auto tuning without rotating the
motor
11
Performs offline auto tuning without rotating the
motor (V/f control, IPM motor MM-CF)
(Refer to page 452)
101 Performs offline auto tuning by rotating the motor
90
C120
Motor constant (R1)
9999
0 to 50 , 9999
Tuning data
(The value measured by offline auto tuning is
automatically set.)
9999: Uses the constant value of Mitsubishi
motor (SF-PR, SF-JR, SF-HR, SF-JRCA, SF-
HRCA, SF-V5RU (1500 r/min series) and so on).
0 to 400 m, 9999
91
C121
Motor constant (R2)
9999
0 to 50 , 9999
0 to 400 m, 9999
92
C122
Motor constant (L1)/
d-axis inductance
(Ld)
9999
0 to 6000 mH, 9999
0 to 400 mH, 9999
93
C123
Motor constant (L2)/
q-axis inductance
(Lq)
9999
0 to 6000 mH, 9999
0 to 400 mH, 9999
94
C124
Motor constant (X)
9999 0 to 100%, 9999
82
C125
Motor excitation
current
9999
0 to 500 A, 9999
0 to 3600 A, 9999
859
C126
Torque current/Rated
PM motor current
9999
0 to 500 A, 9999
0 to 3600 A, 9999
298
A711
Frequency search
gain
9999
0 to 32767
The offline auto tuning automatically sets the
gain required for the frequency search.
9999
Uses the constant value of Mitsubishi motor (SF-
PR, SF-JR, SF-HR, SF-JRCA, SF-HRCA and so
on).
Magnetic flux
Magnetic flux
Sensorless
Sensorless
Vector
Vector
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