Mitsubishi Electric FR-A500 Instruction Manual page 125

When you use the advanced magnetic flux vector control, you can perform the offline auto tuning operation
to calculate motor constants automatically.
Offline auto tuning is made valid only when values other than "9999" are set in Pr. 80 and Pr. 81 to select
the advanced magnetic flux vector control.
The online tuning data (motor constants) can be copied to another inverter with the PU (FR-DU04/FR-
PU04).
If the motor used is not the Mitsubishi standard motor (SF-JR 0.4kW (1/2HP) or more) or Mitsubishi
constant-torque motor (SF-JRCA 200V class 4 poles, 0.4kW (1/2HP) to 55kW (75HP)) (e.g. other
manufacturer's motor, SF-JRC) or if the wiring distance is long, you can use the offline auto tuning to run
the motor with the optimum operation characteristics.
Offline auto tuning
Automatically measures the motor constants used for advanced magnetic flux vector control.
•Offline auto tuning can be performed with the load connected. (As the load is smaller, tuning accuracy is
higher. Tuning accuracy does not change if inertia is large.)
•For the offline auto tuning, you can select either the motor non-rotation mode or rotation mode.
Note that when making selection for the online auto tuning, the motor-only rotation mode should be
selected.
•You can read, write and copy the motor constants tuned by the offline auto tuning.
•The offline auto tuning status can be monitored with the PU (FR-DU04/FR-PU04).
Parameter
Factory Setting
Number
82
83 200V/400V*
84
90
91
92
93
94
96
* The inverter of 400V voltage class is factory-set to 400V.
Setting Range
9999 0 to, 9999
0 to 1000V
60HZ 50 to 120Hz
9999 0 to, 9999
9999 0 to, 9999
9999 0 to, 9999
9999 0 to, 9999
9999 0 to, 9999
0 0, 1, 101
Remarks
9999: Mitsubishi standard motor
Rated motor voltage
Rated motor frequency
9999: Mitsubishi standard motor
9999: Mitsubishi standard motor
9999: Mitsubishi standard motor
9999: Mitsubishi standard motor
9999: Mitsubishi standard motor
0: No tuning
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PARAMETERS