Offline Auto Tuning Function (Pr. 82 To Pr. 84, Pr. 90, Pr. 96) - Mitsubishi FR-E500 Series Instruction Manual

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

4.2.28 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"
What is auto tuning?
(1) The general-purpose magnetic flux vector control system gets the best
performance from the motor for operation.
(2) Using the offline auto tuning function to improve the operational performance of
the motor.
When you use the general-purpose magnetic flux vector control, you can perform the
offline auto tuning operation to calculate the motor constants automatically.
" 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.
" The Mitsubishi standard motor (SF-JR0.4kW or more) or Mitsubishi constant-torque
motor (By SF-JRCA 200V class and 4-pole motor of 0.4kW to 7.5kW) allows
general-purpose magnetic flux vector control operation to be performed without
using the offline auto tuning function. However, if any other motor (Motor made of
the other manufacturers or SF-JRC, etc.) is used or the wiring distance is long, using
the offline auto tuning function allows the motor to be operated with the optimum
operational characteristics.
" Offline auto tuning
Automatically measures the motor constants used for general-purpose 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.)
! The offline auto tuning status can be monitored with the PU (FR-PU04).
! Offline auto tuning is available only when the motor is at a stop.
" Tuning data (motor constants) can be copied to another inverter with the PU
(FR-PU04).
! You can read, write and copy the motor constants tuned by the offline auto tuning.
Parameter Factory
Number Setting
82
83
84
90
96
Setting Range
0 to 500A,
9999
9999
200V 0 to 1000V
60Hz 50 to 120Hz
9999 0 to 50Ω, 9999 9999: Mitsubishi standard motor
0 0, 1
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Related parameters
Pr. 7 "acceleration time"
Pr. 9 "electronic thermal O/L
relay"
Pr. 71 "applied motor"
Pr. 79 "operation mode selection"
Pr. 80 "motor capacity"
Remarks
9999: Mitsubishi standard motor
Rated inverter voltage
0: No tuning
93
PARAMETERS