Mitsubishi Electronics FR-A720-0.4k to 90k User Manual
189
Selection and protection of a motor
4
4.13.3 Offline auto tuning (Pr. 71, Pr. 80 to Pr. 84, Pr. 90 to Pr. 94, Pr. 96, Pr. 450,
Pr. 453 to Pr. 463, Pr. 684, Pr. 859, Pr. 860
)
The motor performance can be maximized with offline auto tuning.
• What is 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 automatically 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.
motor can be run with the optimum operating characteristics by automatically 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.
Parameter
Number
Name
Initial
Value
Value
Setting Range
Description
71
Applied motor
0
0 to 8, 13 to 18, 20, 23, 24, 30,
33, 34, 40, 43, 44, 50, 53, 54
By selecting a standard motor or constant
torque motor, thermal characteristic and
motor constants of each motor are set.
torque motor, thermal characteristic and
motor constants of each motor are set.
80
Motor capacity
9999
55K or lower
0.4 to 55kW
Set the applied motor capacity.
75K or higher
0 to 3600kW
9999
V/F control
81
Number of motor poles
9999
2, 4, 6, 8, 10
Set the number of motor poles.
12, 14, 16, 18, 20
X18 signal-ON:V/F
control
control
Set 10 + number of
motor poles.
motor poles.
9999
V/F control
82
Motor excitation
current
current
9999
55K or lower
0 to 500A
Tuning data
(The value measured by offline auto
tuning is automatically set.)
(The value measured by offline auto
tuning is automatically set.)
75K or higher
0 to 3600A
9999
Use the Mitsubishi motor (SF-JR, SF-HR,
SF-JRCA, SF-HRCA, SF-V5RU (1500r/
min series), etc.) constants
SF-JRCA, SF-HRCA, SF-V5RU (1500r/
min series), etc.) constants
83
Rated motor voltage
200/
400V*
0 to 1000V
Set the rated motor voltage(V).
* The initial value differs according to the
* The initial value differs according to the
voltage level. (200V/400V)
84
Rated motor frequency
60Hz
10 to 120Hz
Set the rated motor frequency (Hz).
90
Motor constant (R1)
9999
55K or lower
0 to 50
Ω, 9999
Tuning data
(The value measured by offline auto
tuning is automatically set.)
9999: Use the Mitsubishi motor (SF-JR,
SF-HR, SF-JRCA, SF-HRCA, SF-V5RU
(1500r/min series), etc.) constants
(The value measured by offline auto
tuning is automatically set.)
9999: Use the Mitsubishi motor (SF-JR,
SF-HR, SF-JRCA, SF-HRCA, SF-V5RU
(1500r/min series), etc.) constants
75K or higher
0 to 400m
Ω,
9999
91
Motor constant (R2)
9999
55K or lower
0 to 50
Ω, 9999
75K or higher
0 to 400m
Ω,
9999
92
Motor constant (L1)
9999
55K or lower
0 to 50
Ω,
(0 to 1000mH),
9999
75K or higher
0 to 3600m
Ω
(0 to 400mH),
9999
93
Motor constant (L2)
9999
55K or lower
0 to 50
Ω
(0 to 1000mH),
9999
75K or higher
0 to 3600m
Ω
(0 to 400mH),
9999
94
Motor constant (X)
9999
55K or lower
0 to 500
Ω
(0 to 100%),
9999
75K or higher
0 to 100
Ω
(0 to 100%),
9999
96
Auto tuning setting/
status
status
0
0
Offline auto tuning is not performed
1
Offline auto tuning is performed without
motor running
motor running
101
Offline auto tuning is performed with
motor running
motor running
450
Second applied motor
9999
0 to 8, 13 to 18, 20,
23, 24, 30, 33, 34, 40, 43, 44,
50, 53, 54
Set when using the second motor.
(same specifications as Pr. 71)
(same specifications as Pr. 71)
9999
Not function
Magnetic flux
Magnetic flux
Magnetic flux
Sensorless
Sensorless
Sensorless
Vector
Vector
Vector