Filter
Top Products
124
Offline auto tuning (Pr. 80 to Pr. 96)
3.12.5 Setting the motor constants directly
Offline auto tuning is not used.
The Pr. 92 and Pr. 93 motor constants may either be entered in [
Ω] or in [mH]. Before starting operation, confirm
which motor constant unit is used. (Refer to page 120.)
z To enter the Pr. 92 and Pr. 93 motor constants in [Ω]
<Operating procedure>
1. After checking that the input motor constants are those for star connection or delta connection, set the Pr. 71
value as indicated below (When direct input is selected and offline auto tuning is performed, set "7, 8, 17 or 18")
in Pr. 71. (Refer to page 125.).
2. Set "801" in Pr. 77.
(The parameter values of the motor constants (Pr. 90 to Pr. 94) can be displayed. Though the parameter values
of other than Pr. 90 to Pr. 94 can also be displayed, they are parameters for manufacturer setting and their
values should not be changed.)
3. In the parameter setting mode, read the following parameters and set desired values.
4. Return the Pr. 77 setting to the original value.
5. Set Pr. 83 and Pr. 84.
z To enter the Pr. 92 and Pr. 93 motor constants in [mH]
<Operating procedure>
1. After checking that the input motor constants are those for star connection or delta connection, set the Pr. 71
value as indicated below.
2. Set "801" in Pr. 77.
(The parameter values of the motor constants (Pr. 90 to Pr. 94) can be displayed. Though the parameter values
of other than Pr. 90 to Pr. 94 can also be displayed, they are parameters for manufacturer setting and their
values should not be changed.)
Star Connection Motor Delta Connection Motor
Pr. 71
Setting
Standard motor 5 6
Constant-torque motor 15 16
Parameter Number Name Setting Range Setting Increments Factory Setting
82 Motor excitation current (no load current) 0 to 500A 0.01A 9999
90 Motor constant r1 0 to 50
Ω, 9999 0.001Ω 9999
91 Motor constant r2 0 to 50
Ω, 9999 0.001Ω 9999
92 Motor constant x1 0 to 50
Ω, 9999 0.001Ω 9999
93 Motor constant x2 0 to 50
Ω, 9999 0.001Ω 9999
94 Motor constant xm 0 to 500
Ω, 9999 0.01Ω 9999
859 Torque current 0 to 500A 0.01A 9999
Parameter Number Name Setting Range Setting Increments Factory Setting
83 Rated motor voltage 0 to 1000V 0.1V 200V/400V
84 Rated motor frequency 10 to 200Hz 0.01Hz 60Hz
CAUTION
1. Set "9999" in Pr. 90 to Pr. 94 to use the standard motor constants (including those for the constant-
torque motor).
2. If "star connection" is mistaken for "delta connection" or vice versa during setting of Pr. 71, control
cannot be exercised properly.
Pr. 71
Setting
Standard motor 0
Constant-torque motor 10
SF-V5RU 30
Iq=Torque, I100=Rated current, I0=No load current
Iq= I
100
2
- I
0
2