Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 659 / 1218

Parameters (C) Motor constant parameters
FR-A800 5 - 457
5.13.2 Offline auto tuning
The offline auto tuning enables the optimal operation of an motor.
What is offline auto tuning?
Under Advanced magnetic flux vector control, real sensor vector control or vector control operation,
measuring motor constants automatically (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 dis-
tance is long.
For the offline auto tuning for a PM motor, refer to page 5-471.
Pr. Name
Initial
value
Setting range Description
684
C000
Tuning data unit
switchover
0
0 Internal data converted value
1 The value is indicated with "A, Ω, mH or %".
71
C100
Applied motor 0
0 to 6, 13 to 16, 20, 23, 24, 30,
33, 34, 40, 43, 44, 50, 53, 54,
70, 73, 74, 330, 333, 334, 8090,
8093, 8094, 9090, 9093, 9094
By selecting a motor, the thermal
characteristic and motor constant of each
motor are set.
80
C101
Motor capacity 9999
0.4 to 55 kW
Set the applied motor capacity.
0 to 3600 kW
9999 V/F control
81
C102
Number of motor
poles
9999
2, 4, 6, 8, 10, 12 Set the number of motor poles.
9999 V/F control
9
C103
Electronic thermal
O/L relay
Inverter
rated
current
0 to 500 A
Set the rated motor current.
0 to 3600 A
83
C104
Rated motor voltage
200/400 V
0 to 1000 V Set the rated motor voltage (V).
84
C105
Rated motor
frequency
9999
10 to 400 Hz Set the rated motor frequency (Hz).
9999 Use the value set in Pr. 3 "Base frequency".
707
C107
Motor inertia
(integer)
9999 10 to 999, 9999
Set the motor inertia.
9999: Uses the constant value of Mitsubishi
motor (SF-PR, SF-JR, SF-HR, SF-JRCA,
SF-HRCA, SF-V5RU (1500 r/min series) and
so on).
724
C108
Motor inertia
(exponent)
9999 0 to 7, 9999
96
C110
Auto tuning setting/
status
0
0 No offline auto tuning
1
Performs offline auto tuning without
rotating the motor
11
Performs offline auto tuning without
rotating the motor (V/f control, IPM motor
MM-CF)
(Refer to page 5-471)
101
Performs offline auto tuning by rotating the
motor
Magnetic flux Magnetic flux Magnetic flux Sensorless Sensorless Sensorless Vector Vector Vector