Mitsubishi Electric FR-F820-00046 Instruction Manual page 373

Fr-f800 series
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• Use the following formula to find the Pr.94 setting value and set a desired value as the motor constant parameter.
The setting value of Pr.94 = (1 -
R1
I1
V
M
Equivalent circuit diagram of the motor
First motor
Second
Pr.
motor Pr.
82
455
90
458
91
459
92
460
93
461
94
462
859
860
298
560
*1
For the FR-F820-02330(55K) or lower, and FR-F840-01160(55K) or lower.
*2
For the FR-F820-03160(75K) or higher, and FR-F840-01800(75K) or higher.
NOTE
• If "9999" is set, tuning data will be invalid and the constant values for Mitsubishi Electric motors (SF-PR, SF-JR, SF-HR, SF-
JRCA, SF-HRCA and so on) are used.
 Changing the motor constants (when setting motor constants in the
internal data of the inverter)
• Set Pr.71 as follows.
Mitsubishi Electric standard motor
Mitsubishi Electric high-efficiency motor
Mitsubishi Electric constant-torque motor
Mitsubishi Electric high-performance energy-
saving motor
Other manufacturer's standard motor
Other manufacturer's constant-torque motor
372
5. PARAMETERS
5.10 (C) Motor constant parameters
2
M
L1×L2
I2
R1: Primary resistance
R2: Secondary resistance
I1: Primary leakage inductance
I2: Secondary leakage inductance
R2/S
M: Excitation inductance
S: Slip
L1= I1+ M: Primary inductance
L2= I2+ M: Secondary inductance
Name
Motor excitation current (no load
current)
Motor constant (R1)
Motor constant (R2)
Motor constant (L1)/d-axis
inductance (Ld)
Motor constant (L2)/q-axis
inductance (Lq)
Motor constant (X)
Torque current/Rated PM motor
current
Frequency search gain
Motor
SF-JR, SF-TH
SF-JR 4P 1.5 kW or lower
SF-HR
Others
SF-JRCA 4P, SF-TH (constant-torque)
SF-HRCA
Others (SF-JRC, etc.)
SF-PR
)×100(%)
Setting range
*1
0 to 500 A, 9999
*2
0 to 3600 A, 9999
*1
0 to 50 Ω, 9999
*2
0 to 400 mΩ, 9999
*1
0 to 50 Ω, 9999
*2
0 to 400 mΩ, 9999
*1
0 to 6000 mH, 9999
*2
0 to 400 mH, 9999
*1
0 to 6000 mH, 9999
*2
0 to 400 mH, 9999
0 to 100%, 9999
*1
0 to 500 A, 9999
*2
0 to 3600 A, 9999
0 to 32767, 9999
3 (4)
23 (24)
43 (44)
3 (4)
13 (14)
53 (54)
13 (14)
73 (74)
3 (4)
13 (14)
Setting
Initial value
increments
*1
0.01 A
*2
0.1 A
*1
0.001 Ω
*2
0.01 mΩ
*1
0.001 Ω
*2
0.01 mΩ
*1
0.1 mH
*2
9999
0.01 mH
*1
0.1 mH
*2
0.01 mH
*1
0.1%
*2
0.01%
*1
0.01 A
*2
0.1 A
1
Pr.71 setting

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