Setting The Motor Constants Directly - Mitsubishi Electric FR-V560 Instruction Manual

4.12.5 Setting the motor constants directly

Offline auto tuning is not used.
The Pr. 92 and Pr. 93 (Pr. 460, Pr. 461) motor constants may either be entered in [Ω] or in [mH]. Before starting
operation, confirm which motor constant unit is
To enter the Pr. 92 and Pr. 93 (Pr. 460, Pr. 461) 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 (Pr.
450) value as indicated below (When direct input is selected and offline auto tuning is performed, set "7, 8, 17 or
18") in Pr. 71 (Pr. 450). (Refer to page 138.).
Pr. 71 Standard motor
(Pr. 450)
Constant-torque motor
Setting
2. Set "801" in Pr. 77.
(The parameter values of the motor constants (Pr. 90 to Pr. 94 (Pr. 458 to Pr. 462)) can be displayed. Though the
parameter values of other than Pr. 90 to Pr. 94 (Pr. 458 to Pr. 462) 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.
Iq=Torque, I 100 =Rated current, I
2 2
Iq= I 100 - I 0
Parameter Number
Motor excitation current
82 (455)
(no load current)
90 (458) Motor constant r1
91 (459) Motor constant r2
92 (460) Motor constant x1
93 (461) Motor constant x2
94 (462) Motor constant xm
859 (860) Torque current
4. Return the Pr. 77 setting to the original value.
5. Set Pr. 83 and Pr. 84 (Pr. 456, Pr. 457).
Parameter Number
83 (456) Rated motor voltage
84 (457) Rated motor frequency
CAUTION
1. Set "9999" in Pr. 90 to Pr. 94 (Pr. 458 to Pr. 462) 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 (Pr. 450),
control cannot be exercised properly.
To enter the Pr. 92 and Pr. 93 (Pr. 460 and Pr. 461) 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 (Pr.
450) value as indicated below.
Standard motor
Pr. 71 (Pr. 450) Constant-torque motor
Setting
Vector control dedicated
motor
2. Set "801" in Pr. 77.
(The parameter values of the motor constants (Pr. 90 to Pr. 94 (Pr. 458 to Pr. 462)) can be displayed. Though the
parameter values of other than Pr. 90 to Pr. 94 (Pr. 458 to Pr. 462) can also be displayed, they are parameters for
manufacturer setting and their values should not be changed.)
used. (Refer to page 132.)
Star Connection Motor
5
15
0 =No load current
Name Setting Range Setting Increments Factory Setting
0 to 500A
0 to 50Ω, 9999
0 to 50Ω, 9999
0 to 50Ω, 9999
0 to 50Ω, 9999
0 to 500Ω, 9999
0 to 500A
Name Setting Range
0 to 1000V
20 to 200Hz
0
10
30
137
Offline auto tuning (Pr. 80 to Pr. 96)
Delta Connection Motor
6
16
0.01A
0.001Ω
0.001Ω
0.001Ω
0.001Ω
0.01Ω
0.01A
Setting Increments
0.1V
0.01Hz
9999
9999
9999
9999
9999
9999
9999
Factory Setting
575V
60Hz
4