Offline Auto Tuning For A Pm Motor (Motor Constants Tuning) - Mitsubishi Electric 800 Series Instruction Manual

(C) Motor constant parameters
5.13.3
Offline auto tuning for a PM motor (motor
constants tuning)
The offline auto tuning for an PM motor enables the optimal operation of a PM motor.
• What is offline auto tuning?
Automatic setting of motor constants necessary for operation under PM sensorless vector control (offline auto tuning)
enables optimal operation of PM motors.
For the offline auto tuning under Advanced magnetic flux vector control, Real sensorless vector control, and vector
control, refer to page
Pr. Name
684
Tuning data unit switchover
C000
1002 Lq tuning target current
C150 adjustment coefficient
71
Applied motor
C100
80
Motor capacity
C101
81
Number of motor poles
C102
9
Electronic thermal O/L relay
C103
83
Rated motor voltage
C104
84
Rated motor frequency
C105
702
Maximum motor frequency
C106
707
Motor inertia (integer)
C107
724
Motor inertia (exponent)
C108
96
Auto tuning setting/status
C110
90
Motor constant (R1)
C120
92 Motor constant (L1)/d-axis
C122 inductance (Ld)
93 Motor constant (L2)/q-axis
C123 inductance (Lq)
859 Torque current/Rated PM
C126 motor current
706 Induced voltage constant
C130 (phi f)
1412 Motor induced voltage
C135 constant (phi f) exponent
436
PARAMETERS
426.
Initial
value
0
9999
0
9999
9999
Inverter
rated
current

575 V
9999
9999
9999
9999
0
9999
9999
9999
9999
9999
9999
PM PM PM
Setting range
0
1
50 to 150%
9999
0 to 6, 13 to 16, 30, 33, 34, 8090,
8093, 8094, 9090, 9093, 9094
0.4 to 55 kW

0 to 3600 kW

9999
2, 4, 6, 8, 10, 12
9999
0 to 500 A

0 to 3600 A

0 to 1000 V
10 to 400 Hz
9999
0 to 400 Hz
9999
10 to 999, 9999
0 to 7, 9999
0, 11, 101
1
0 to 50 Ω, 9999

0 to 400 mΩ, 9999

0 to 500 mH, 9999

0 to 50 mH, 9999

0 to 500 mH, 9999

0 to 50 mH, 9999

0 to 500 A, 9999

0 to 3600 A, 9999

0 to 5000 mV/(rad/s)

9999
0 to 2
9999
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 inverter internal data is used. Use the
correct setting according to the motor
specification.
Set the maximum frequency of the motor.
Pr.84 setting is used.
Set the motor inertia.
9999: The inverter internal data is used.
No offline auto tuning.
Performs offline auto tuning without
rotating the motor.
Tuning data
(The value measured by offline auto
tuning is automatically set.)
9999: The inverter internal data is used.
Set this parameter according to the PM
motor specifications.
The value calculated by the motor
constant parameter setting is used.
Set the exponent n when the induced
voltage constant phi f (Pr.706) is
n
multiplied by 10 .
No exponent setting