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

Page: 673 / 1218

Parameters (C) Motor constant parameters
FR-A800 5 - 471
5.13.3 Offline auto tuning for a PM motor (motor constant tuning)
The offline auto tuning for an PM motor enables the optimal operation of a PM motor.
●
What is offline auto tuning?
Under PM sensorless vector control, setting motor constants automatically (offline auto tuning)
enables optimal operation of motors even when motor constants vary or when the wiring distance
is long. IPM and SPM motors other than IPM motor MM-CF can also be used.
For the offline auto tuning under Advanced magnetic flux vector control, Real sensorless vector con-
trol, and vector control, refer to page 5-72.
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 mV".
1002
C150
Lq tuning target current
adjustment coefficient
9999
50 to 150%
Perform adjustment if the
overcurrent protective function is
activated during tuning.
9999 No adjustment
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
Applied motor capacity setting.
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
The MM-CF constant is used when
the IPM motor MM-CF is selected,
and the inverter internal data is used
when a PM motor other than MM-CF
is selected. Use the correct setting
according to the motor specification.
702
C106
Maximum motor frequency 9999
0 to 400 Hz
Set the maximum frequency of the
motor.
9999
The MM-CF motor maximum
frequency is used when the IPM
motor MM-CF is selected, and Pr. 84
setting is used when a PM motor
other than MM-CF is selected.
707
C107
Motor inertia (integer) 9999 10 to 999, 9999
Set the motor inertia.
9999: Uses MM-CF inertia for IPM
motor MM-CF.
724
C108
Motor inertia (exponent) 9999 0 to 7, 9999
96
C110
Auto tuning setting/status 0
0, 101 No offline auto tuning.
1
Performs offline auto tuning without
rotating the motor. (motor other
than IPM motor MM-CF)
11
Performs offline auto tuning without
rotating the motor (V/F control, IPM
motor MM-CF).
PM PM PM