Offline Auto Tuning For A Pm Motor (Motor Constant Tuning) - Mitsubishi Electric FR-A820-00046 Instruction Manual

(C) Motor constant parameters
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 5-67.
Pr.
684
C000
1002
C150
71
C100
80
C101
81
C102
9
C103
83
C104
84
C105
702
C106
707
C107
724
C108
96
C110
5 - 454
Name
Tuning data unit switchover
Lq tuning target current
adjustment coefficient
Applied motor
Motor capacity
Number of motor poles
Electronic thermal O/L relay
Rated motor voltage
Rated motor frequency
Maximum motor frequency
Motor inertia (integer)
Motor inertia (exponent)
Auto tuning setting/status
Initial
Setting range
value
0
0
1
50 to 150%
9999
9999
0 to 6, 13 to 16, 20, 23, 24, 30,
33, 34, 40, 43, 44, 50, 53, 54, 70,
0
73, 74, 330, 333, 334, 8090,
8093, 8094, 9090, 9093, 9094
0.4 to 55 kW
9999
0 to 3600 kW
9999
2, 4, 6, 8, 10, 12
9999
9999
Rated
0 to 500 A
inverter
0 to 3600 A
current
200/400
0 to 1000 V
V
10 to 400 Hz
9999
9999
0 to 400 Hz
9999
9999
9999 10 to 999, 9999
9999 0 to 7, 9999
0, 101
1
0
11
Parameters
PM PM PM
Description
Internal data converted value
The value is indicated with "A, Ω, mH
or mV".
Perform adjustment if the
overcurrent protective function is
activated during tuning.
No adjustment
By selecting a motor, the thermal
characteristic and motor constant of
each motor are set.
Applied motor capacity setting.
V/F control
Set the number of motor poles.
V/F control
Set the rated motor current.
Set the rated motor voltage (V).
Set the rated motor frequency (Hz).
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.
Set the maximum frequency of the
motor.
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.
Set the motor inertia.
9999: Uses MM-CF inertia for IPM
motor MM-CF.
No offline auto tuning.
Performs offline auto tuning without
rotating the motor. (motor other
than IPM motor MM-CF)
Performs offline auto tuning without
rotating the motor (V/F control, IPM
motor MM-CF).