Mitsubishi Electric FR-F800 Series Instruction Manual page 384

5.10.2 Offline auto tuning for an induction motor
Magnetic flux Magnetic flux Magnetic flux
The offline auto tuning enables the optimal operation of a motor.
• Under Advanced magnetic flux vector control, automatic measurement of motor constants (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
Pr.
684 Tuning data unit
C000 switchover
71
Applied motor
C100
80
Motor capacity
C101
81 Number of motor
C102 poles
9 Electronic
C103 thermal O/L relay
83 Rated motor
C104 voltage
84 Rated motor
C105 frequency
707 Motor inertia
C107 (integer)
724 Motor inertia
C108 (exponent)
96 Auto tuning
C110 setting/status
90 Motor constant
C120 (R1)
91 Motor constant
C121 (R2)
Motor constant
92
(L1)/d-axis
C122
inductance (Ld)
Motor constant
93
(L2)/q-axis
C123
inductance (Lq)
94 Motor constant
C124 (X)
82 Motor excitation
C125 current
Torque current/
859
Rated PM motor
C126
current
298 Frequency search
A711 gain
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Initial
Name
value
0
0
1
0 to 6, 13 to 16, 20, 23, 24,
40, 43, 44, 50, 53, 54, 70,
0 73, 74, 210, 213, 214, 240,
243, 244, 8090, 8093, 8094,
9090, 9093, 9094
0.4 to 55 kW
9999
0 to 3600 kW
9999
2, 4, 6, 8, 10, 12
9999
9999
Inverter
0 to 500 A
rated
0 to 3600 A
current
*3
0 to 1000 V
200/400 V
10 to 400 Hz
9999
9999
9999 10 to 999, 9999
9999 0 to 7, 9999
0
1
0
11
101
0 to 50 Ω, 9999
9999
0 to 400 mΩ, 9999
0 to 50 Ω, 9999
9999
0 to 400 mΩ, 9999
0 to 6000 mH, 9999
9999
0 to 400 mH, 9999
0 to 6000 mH, 9999
9999
0 to 400 mH, 9999
9999
0 to 100%, 9999
0 to 500 A, 9999
9999
0 to 3600 A, 9999
0 to 500 A, 9999
9999
0 to 3600 A, 9999
0 to 32767
9999
9999
search engine
page 392.
Setting range
Internal data converted value
The value is indicated in A, Ω, mH, or %.
By selecting a motor, the thermal characteristic and motor
constant of each motor are set.
*1
Set the applied motor capacity.
*2
V/F control
Set the number of motor poles.
V/F control
*1
Set the rated motor current.
*2
Set the rated motor voltage (V).
Set the rated motor frequency (Hz).
The setting value of Pr.3 Base frequency is used.
Set the motor inertia.
9999: The constant value of Mitsubishi Electric motor (SF-JR,
SF-HR, SF-JRCA, or SF-HRCA and so on) is used.
No offline auto tuning
Offline auto tuning is performed without the motor rotating.
Offline auto tuning is performed without the motor rotating (V/F
control, IPM motor MM-EFS/MM-THE4). (Refer to
Offline auto tuning is performed with the motor rotating.
*1*4
*2*4
*1*4
*2*4
*1*4
*2*4
Tuning data
(The value measured by offline auto tuning is automatically
*1*4
set.)
*2*4
9999: The constant value of Mitsubishi Electric motor (SF-PR,
SF-JR, SF-HR, SF-JRCA, SF-HRCA and so on) is used.
*4
*1*4
*2*4
*1*4
*2*4
The offline auto tuning automatically sets the gain required for
the frequency search.
The constant value of Mitsubishi Electric motor (SF-PR, SF-JR,
SF-HR, SF-JRCA, SF-HRCA and so on) is used.
Description
page 474.)
5. PARAMETERS
5.10 (C) Motor constant parameters
1
2
3
4
5
6
7
8
9
10
383