Offline Auto Tuning For A Pm Motor (Motor Constant Tuning) - Mitsubishi Electric FR-F820-00046 Instruction Manual

Parameters referred to
Pr.1 Maximum frequencypage 271
Pr.9 Electronic thermal O/L relaypage 252
Pr.31 to Pr.36 Frequency jumppage 272
Pr.71 Applied motorpage 362
Pr.156 Stall prevention operation selectionpage 273
Pr.178 to Pr.189 (Input terminal function
Pr.190 to Pr.196 (Output terminal function
5.10.3 Offline auto tuning for a PM motor (motor constant
tuning)
PM PM PM
The offline auto tuning 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. IPM and SPM motors other than the MM-EFS or MM-
THE4 IPM motor can also be used.
For the offline auto tuning under Advanced magnetic flux vector control, refer to
Pr. Name
684 Tuning data unit
C000 switchover
71
Applied motor
C100
80
Motor capacity
C101
81 Number of motor
C102 poles
9 Electronic thermal O/
C103 L relay
83
Rated motor voltage
C104
84 Rated motor
C105 frequency
702 Maximum motor
C106 frequency
707
Motor inertia (integer) 9999
C107
724 Motor inertia
C108 (exponent)
96 Auto tuning setting/
C110 status
selection)page 355
selection)page 312
Initial
Setting range
value
0
0
1
0 to 6, 13 to 16, 20, 23, 24,
40, 43, 44, 50, 53, 54, 70,
73, 74, 210, 213, 214,
0
240, 243, 244, 8090,
8093, 8094, 9090, 9093,
9094
*1
0.4 to 55 kW
9999 *2
0 to 3600 kW
9999
2, 4, 6, 8, 10, 12
9999
9999
Inverter *1
0 to 500 A
rated
*2
0 to 3600 A
current
*3
0 to 1000 V
200/400 V
10 to 400 Hz
9999
9999
0 to 400 Hz
9999
9999
10 to 999, 9999
9999 0 to 7, 9999
0, 101
1
0
11
page 366.
Description
Internal data converted value
The value is indicated in A, Ω, mH, or mV.
By selecting a motor, the thermal characteristic and motor
constant of each motor are set.
Set the applied motor capacity.
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-EFS or MM-THE4 constant is used when the IPM
motor MM-EFS or MM-THE4 is selected, and the inverter
internal data is used when a PM motor other than MM-EFS or
MM-THE4 is selected. Use the correct setting according to the
motor specification.
Set the permissible speed (frequency) of the motor.
The maximum frequency of MM-EFS/MM-THE4 is used when
the IPM motor MM-EFS or MM-THE4 is selected, and the
Pr.84 setting is used when a PM motor other than the MM-EFS
or MM-THE4 is selected.
Set the motor inertia.
9999: Uses MM-EFS/MM-THE4 inertia for the IPM motor MM-
EFS/MM-THE4.
No offline auto tuning
Offline auto tuning is performed without the motor rotating
(motor other than IPM motor MM-EFS or MM-THE4).
Offline auto tuning is performed without the motor rotating (V/F
control, IPM motor MM-EFS/MM-THE4).
5.10 (C) Motor constant parameters
1
2
3
4
5
6
7
8
9
10
375
5. PARAMETERS