Offline Auto Tuning Function (Pr. 82 To Pr. 84, Pr. 90, Pr. 96) - Mitsubishi Electric FR-E540-0.4K-EC Instruction Manual

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Offline auto tuning function (Pr. 82 to Pr. 84, Pr. 90, Pr. 96)

4.2.35 Offline auto tuning function (Pr. 82 to Pr. 84, Pr. 90, Pr. 96)
Pr. 82 "motor exciting current"
Pr. 83 "rated motor voltage"
Pr. 84 "rated motor frequency"
Pr. 90 "motor constant (R1)"
Pr. 96 "auto-tuning setting/status"
When you use the general-purpose magnetic flux vector control, you can perform the
offline auto tuning operation to calculate the motor constants automatically.
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Offline auto tuning is made valid only when Pr. 80 is set to other than "9999" to
select the general-purpose magnetic flux vector control.
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The general-purpose magnetic flux vector control can be used without using the
offline auto tuning function but if the motor used is not Mitsubishi's standard motor or
Mitsubishi's constant-torque motor (e.g. motor of another company make) or the
wiring distance is long, the motor can be run with the optimum operating
characteristics by using the offline auto tuning function.
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Offline auto tuning
Automatically measures the motor constants used for general-purpose magnetic flux
vector control.
y 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.)
y The offline auto tuning status can be monitored with the control panel
(FR-PA02- ) or PU (FR-PU04).
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y Offline auto tuning is available only when the motor is at a stop.
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Tuning data (motor constants) can be copied to another inverter with the PU
(FR-PU04).
y You can read, write and copy the motor constants tuned by the offline auto tuning.
Parameter
Factory Setting Setting Range
Number
82
83 200V/400V
84
90
96
0 to 500A,
9999
9999
0 to 1000V
50Hz 50 to 120Hz
9999 0 to 50Ω, 9999 9999: Mitsubishi standard motor
0 0, 1
Related parameters
Pr. 7 "acceleration time"
Pr. 9 "electronic thermal O/L
relay"
Pr. 71 "applied motor"
Pr. 79 "operation m ode selection"
Pr. 80 "motor capacity"
Remarks
9999: Mitsubishi standard motor
Rated inverter voltage
0: No tuning
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PARAMETERS