Mitsubishi Electric FR-A700 Instruction Manual page 205
Fr-a700 series to 03460-na/09620-na/00330-n4/00170-n4
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- Instruction manual (826 pages) ,
- Technical manual (550 pages) ,
- Manual (104 pages)
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• To enter the Pr. 92 and Pr. 93 motor constants in [mH]
<Operating procedure>
1) Set Pr. 71 according to the motor used.
Motor
Mitsubishi standard
motor
Mitsubishi high
efficiency motor
Mitsubishi constant-
torque motor
Vector control
dedicated motor
*1 For other settings of Pr. 71, refer to the page 185.
2) In the parameter setting mode, read the following parameters and set desired values.
Calculate the Pr. 94 value from the following formula.
Pr. 94 setting = (1 -
R1
I1
V
M
L1= I1+ M: Primary inductance
L2= I2+ M: Secondary inductance
Motor equivalent circuit diagram
Parameter
Number
Motor excitation current
82
(no load current)
90
Motor constant (R1)
91
Motor constant (R2)
92
Motor constant (L1)
93
Motor constant (L2)
94
Motor constant (X)
859
Torque current
3)Refer to the following table and set Pr. 83 and Pr. 84 .
Parameter
Number
83
Motor rated voltage
84
Rated motor frequency
* The initial value differs according to the voltage level. (200V/400V)
REMARKS
· When "9999" is set in Pr. 82, Pr. 90 to Pr. 94, Pr. 859, Mitsubishi motor (SF-JR, SF-HR,SF-JRCA, SF-HRCA, SF-V5RU)
constants are used.
SF-JR
SF-JR 4P 1.5kW or less
SF-HR
SF-JRCA 4P
SF-TH (constant torque)
SF-HRCA 4P
SF-V5RU
2
M
×
)
100 (%)
×
L1
L2
I2
R1: Primary resistance
R2: Secondary resistance
I1: Primary leakage inductance
R2/S
I2: Secondary leakage inductance
M: Excitation inductance
S: Slip
Name
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
02150 (01100) or less
02880 (01440) or more
Name
Setting Range
0 to 1000V
10 to 120Hz
Selection and protection of a motor
Pr.71 Setting
0
20
40
1
50
30
Setting Range
200V class (400V class)
0 to 500A, 9999
0 to 3600A, 9999
0 to 50Ω, 9999
0 to 400mΩ, 9999
0 to 50Ω, 9999
0 to 400mΩ, 9999
0 to 1000mH, 9999
0 to 400mH, 9999
0 to 1000mH, 9999
0 to 400mH, 9999
0 to 100%, 9999
0 to 100%, 9999
0 to 500A, 9999
0 to 3600A, 9999
Setting
Increments
0.1V
0.01Hz
Setting
Initial
Increments
Value
0.01A
9999
0.1A
0.001Ω
9999
0.01mΩ
0.001Ω
9999
0.01mΩ
0.1mH
9999
0.01mH
0.1mH
9999
0.01mH
0.1%
9999
0.01%
0.01A
9999
0.1A
Initial
Value
400V
Hz
195
4
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