Mitsubishi Electric FR-A820-00046 Instruction Manual page 675

Parameters
Pr.
743
C206
744
C207
745
C208
463
C210
458
C220
460
C222
461
C223
860
C226
738
C230
1413
C235
739
C231
740
C232
741
C282
742
C285
746
C233
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.
FR-A800
Name
Second motor maximum
frequency
Second motor inertia
(integer)
Second motor inertia
(exponent)
Second motor auto tuning
setting/status
Second motor constant (R1)
Second motor constant (L1) /
d-axis inductance (Ld)
Second motor constant (L2) /
q-axis inductance (Lq)
Second motor torque current/
Rated PM motor current
Second motor induced
voltage constant (phi f)
Second motor induced
voltage constant (phi f)
exponent
Second motor Ld decay ratio
Second motor Lq decay ratio
Second starting resistance
tuning compensation
Second motor magnetic pole
detection pulse width
Second motor protection
current level
Initial
Setting range
value
0 to 400 Hz
9999
9999
9999 10 to 999, 9999
9999 0 to 7, 9999
0, 101
1
0
11
0 to 50 Ω, 9999
9999
0 to 400 mΩ, 9999
0 to 500 mH, 9999
9999
0 to 50 mH, 9999
0 to 500 mH, 9999
9999
0 to 50 mH, 9999
0 to 500 A, 9999
9999
0 to 3600 A, 9999
0 to 5000 mV/(rad/s)
9999
9999
0 to 2
9999
9999
9999 0 to 100%, 9999
9999 0 to 100%, 9999
9999 0 to 200%, 9999
0 to 6000 μs,
9999
10000 to 16000 μs, 9999
100 to 500%
9999
9999
(C) Motor constant parameters
Description
Set the maximum frequency of the
second motor.
The maximum frequency of an MM-
CF motor when MM-CF is selected.
The setting value of Pr. 457 is used for
non-MM-CF motors.
Set the inertia of the second motor.
9999: Uses MM-CF inertia for IPM
motor MM-CF.
No auto tuning for the second motor.
Performs offline auto tuning without
rotating the second motor. (motor
other than the IPM motor MM-CF)
Performs offline auto tuning without
rotating the motor (V/F control or
IPM motor MM-CF).
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.
Set this parameter according to the
PM motor specifications.
Value calculated based on the tuning
data.
Set the exponent n when the
induced voltage constant phi f
n
(Pr.738) is multiplied by 10 .
No exponent setting
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.
Set the maximum current (OCT) level
of the second motor.
Uses the MM-CF constant for the IPM
motor MM-CF, and 200% for a PM
motor other than MM-CF.
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