Mitsubishi Electric 800 Series Instruction Manual page 364

5.10.3 Offline auto tuning for a PM motor (motor constants
tuning)
PM PM PM
The offline auto tuning for a PM motor enables the optimal operation of a PM motor.
• Automatic measurement of motor constants (offline auto tuning) enables optimal operation of motors for PM motor control
even when motor constants vary or when the wiring distance is long.
For the offline auto tuning under Advanced magnetic flux vector control, refer to
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 motor
C126 current
706 Induced voltage constant (phi f) 9999
C130
Initial Setting range
value
0 0
1
9999 50 to 150%
9999
0 0 to 6, 13 to 16, 8090, 8093,
8094, 9090, 9093, 9094
9999
*1
0.4 to 55 kW
*2
0 to 3600 kW
9999
9999 2, 4, 6, 8, 10, 12
9999
Inverter *1
0 to 500 A
rated
*2
0 to 3600 A
current
575 V 0 to 1000 V
9999 10 to 400 Hz
9999
9999 0 to 400 Hz
9999
9999 10 to 999, 9999
9999 0 to 7, 9999
0 0, 11, 101
1
9999
*1*3
0 to 50 Ω, 9999
*2*3
0 to 400 mΩ, 9999
9999
*1*3
0 to 500 mH, 9999
*2*3
0 to 50 mH, 9999
9999 *1*3
0 to 500 mH, 9999
*2*3
0 to 50 mH, 9999
9999 *1*3
0 to 500 A, 9999
*2*3
0 to 3600 A, 9999
0 to 5000 mV/(rad/s)
9999
page 353.
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
*3
motor specifications.
The value calculated by the motor
constant parameter setting is used.
5.10 (C) Motor constant parameters
3
4
5
5
5
6
7
8
9
10
363
5. PARAMETERS