To Exhibit The Best Performance Of The Motor Performance (Offline Auto Tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96) - Mitsubishi Electric FR-A700 Instruction Manual

Simple mode parameter list
5.1.9 To exhibit the best performance of the motor performance (offline auto
tuning) (Pr. 9, Pr. 71, Pr. 83, Pr. 84, Pr. 96)
The motor performance can be maximized with offline auto tuning.
● What is offline auto tuning?
When performing advanced magnetic flux vector control, real sensorless vector control or
vector control, the motor can be run with the optimum operating characteristics by automat-
icaly measuring the motor constants (offline auto tuning) even when each motor constants
differs, other manufacturer's motor is used, or the wiring length is long.
Pr.
Name
No.
Electronic thermal
9
O/L relay
71
Applied motor
83
Motor rated voltage
Rated motor
84
frequency
Auto tuning setting/
96
status
The initial value of the 00023 and 00038 is set to 85% of the rated inverter current.
● This function is made valid only when a value other than "9999" is set in Pr. 80 and Pr. 81
and advanced magnetic flux vector control or real sensorless vector control is selected.
● You can copy the offline auto tuning data (motor constants) to another inverter with the PU
(FR-PU04/FR-PU07/FR-DU07).
● Even when motors (other manufacturer's motor, SF-JRC, etc.) other than Mitsubishi stand-
ard motor, high efficiency motor (SF-JR SF-HR 0.4kW or more), Mitsubishi constant-torque
motor (SF-JRCA, SF-HRCA four-pole 0.4kW to 55kW) and vector control dedicated motor
(SF-V5RU) are used or the wiring length is long, using the offline auto tuning function runs
the motor with the optimum operating characteristics.
● Tuning is enabled even when a load is connected to the motor. (As the load is lighter, tuning
accuracy is higher. Tuning accuracy does not change even if the inertia is large.)
● For the offline auto tuning, you can select either the motor non-rotation mode (Pr. 96 = 1)
or rotation mode. (Pr. 96 = 101). The rotation mode has higher tuning accuracy than the
non-rotation mode.
● Reading/writing/copy of motor constants tuned by offline auto tuning are enabled.
● The offline auto tuning status can be monitored with the PU.
● Do not connect an output filter to the 01800 or less and sine wave filter to the 02160 or more
between the inverter and motor.
5 - 24
Initial
Setting Range
Value
01800 or
Inverter
0–500A
less
rated
output
02160 or
0–3600A
current
more
0–8/13–18/20/23/24/30/
0
33/34/40/43/44/50/53/54
400V 0–1000V
50 Hz 10–120Hz
0
0 1
101
Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless
Description
Set the rated motor current.
By selecting a standard motor or constant-torque motor,
thermal characteristic and motor constants of each
motor are set.
Set the rated motor voltage (V).
Set the rated motor frequency (Hz).
Offline auto tuning is not performed
Offline auto tuning is performed without motor running
Offline auto tuning is performed with motor running
Basic settings
Vector Vector Vector