Mitsubishi Electric FR-A720-0.4K Instruction Manual page 198
Fr-a700 series
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Selection and protection of a motor
(4) Utilizing or changing offline auto tuning data for use
The data measured in the offline auto tuning can be read and utilized or changed.
<Operating procedure>
1)Set Pr. 71 according to the motor used.
Mitsubishi standard motor
Mitsubishi high efficiency
motor
Mitsubishi constant-torque
motor
Vector control dedicated
motor
Other manufacturer's
standard motor
Other manufacturer's
constant torque motor
*1 For other settings of Pr. 71, refer to the page 180.
2)In the parameter setting mode, read the following parameters and set desired values.
Parameter
Number
82
Motor excitation current
90
Motor constant (R1)
91
Motor constant (R2)
92
Motor constant (L1)
93
Motor constant (L2)
94
Motor constant (X)
859
Torque current
REMARKS
· The display units of the motor constants read using Pr. 684 Tuning data unit switchover can be changed. Note that parameter
values can not be changed.
Pr. 684 Setting
0
55K or less
1
75K or more
· When "9999" is set in Pr. 82, Pr. 90 to Pr. 94, Pr. 455, Pr. 458 to Pr. 462, Pr. 859, Pr. 860, Mitsubishi motor (SF-JR, SF-HR,SF-
JRCA, SF-HRCA, SF-V5RU) constants are used.
· As the motor constants measured in the offline auto tuning have been converted into internal data (****), refer to the following
setting example when making setting:
Setting example
To slightly increase Pr. 90 value (5%)
When Pr. 90 is displayed "2516",
set 2642, i.e. 2516
(The value displayed has been converted into a value for internal use. Hence, simple addition of a given
value to the displayed value has no significance.)
188
Motor
SF-JR, SF-TH
SF-JR 4P 1.5kW or less
SF-HR
Others
SF-JRCA 4P
SF-TH (constant torque)
SF-HRCA 4P
Others (SF-JRC, etc.)
SF-V5RU
SF-THY
−
−
Name
Setting Range
Pr. 82,
Pr. 90,
Pr. 91,
Pr. 455
Pr. 458
Pr. 459
Internal data converted value
0.01A
0.001Ω
0.001Ω
0.1A
0.01mΩ
0.01mΩ
×
1.05 = 2641.8, in Pr. 90 .
Pr. 71 Setting
*
4
24
44
4
14
54
14
34
4
14
0 to ***, 9999
0 to ***, 9999
0 to ***, 9999
0 to ***, 9999
0 to ***, 9999
0 to ***, 9999
0 to ***, 9999
Pr. 92,
Pr. 93,
Pr. 94,
Pr. 460
Pr. 461
Pr. 462
0.1mH
0.1mH
0.1%
0.01mH
0.01mH
0.01%
Setting
Initial
Increments
Value
1
9999
1
9999
1
9999
1
9999
1
9999
1
9999
1
9999
Pr. 859,
Pr. 860
0.01A
0.1A
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