Mitsubishi FR-A800

(C) Motor constant parameters
454
PARAMETERS
 For FR-A820-00077(0.75K) or lower and FR-A840-00038(0.75K) or lower, it is set to 85% of the inverter rated current.
 For the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower.
 For the FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
 Differs according to the voltage class. (200 V/400 V)
 The setting range and unit change according to the Pr.71 (Pr.450) setting.
POINTPOINT
• The settings are valid under the PM sensorless vector control.
• The offline auto tuning enables the operation with SPM motors and IPM motors other than MM-CF. (When a PM motor other
than the IPM motor MM-CF is used, always perform the offline auto tuning.)
• Tuning is enabled even when a load is connected to the motor.
• Reading/writing of the motor constants tuned by offline auto tuning are enabled. The offline auto tuning data (motor
constants) can be copied to another inverter with the operation panel.
• The offline auto tuning status can be monitored with the operation panel and the parameter unit.
463
C210
Second motor auto tuning
setting/status
0
0, 101 No auto tuning for the second motor.
1
Performs offline auto tuning without
rotating the second motor. (motor other
than the IPM motor MM-CF)
11
Performs offline auto tuning without
rotating the motor (for IPM motor MM-
CF).
458
C220
Second motor constant (R1)
9999
0 to 50 , 9999

Tuning data of the second motor
(The value measured by offline auto
tuning is automatically set.)
9999: Uses the MM-CF constant for the
IPM motor MM-CF, and the inverter
internal data for a PM motor other than
MM-CF.
0 to 400 m, 9999

460
C222
Second motor constant (L1)
/ d-axis inductance (Ld)
9999
0 to 500 mH, 9999

0 to 50 mH, 9999
461
C223
Second motor constant (L2)
/ q-axis inductance (Lq)
9999
0 to 500 mH, 9999

0 to 50 mH, 9999
860
C226
Second motor torque
current/Rated PM motor
current
9999
0 to 500 A, 9999

0 to 3600 A, 9999
738
C230
Second motor induced
voltage constant (phi f)
9999
0 to 5000 mV/(rad/s)

Set this parameter according to the PM
motor specifications.
9999
Value calculated based on the tuning
data.
739
C231
Second motor Ld decay
ratio
9999 0 to 100%, 9999
Tuning data of the second motor.
(The value measured by offline auto
9999: Uses the MM-CF constant for the
IPM motor MM-CF, and the inverter
internal data for a PM motor other than
MM-CF.
740
C232
Second motor Lq decay
ratio
9999 0 to 100%, 9999
741
C282
Second starting resistance
tuning compensation
9999 0 to 200%, 9999
742
C285
Second motor magnetic
pole detection pulse width
9999
0 to 6000 s,
10000 to 16000 s, 9999
746
C233
Second motor protection
current level
9999
100 to 500%
Set the maximum current (OCT) level of
the second motor.
9999
Uses the MM-CF constant for the IPM
motor MM-CF, and 200% for a PM motor
other than MM-CF.
Pr. Name
Initial
value
Setting range Description