Mitsubishi Electric FR-A820-00046 Instruction Manual page 632

(C) Motor constant parameters
Changing the motor constant (if setting the Pr. 92 and Pr. 93 motor constants in units of [Ω])
● Set Pr. 71 as shown below.
Applicable motor
Standard motor
Constant-torque motor
● Set a given value as the motor constant parameter.
lq =
Iq = torque current, I100 = rated current, I0 = no load current
First
motor Pr.
82
90
91
92
93
94
859
298
Tab. 5-184: Parameter setting ranges
For the FR-A820-03160(55K) or lower and FR-A840-01800(55K) or lower.
For the FR-A820-03800(75K) or higher and FR-A840-02160(75K) or higher.
NOTES If "star connection" or "delta connection" is incorrectly selected in Pr. 71, Advanced magnetic flux
vector control, Real sensorless vector control and vector control are not performed normally.
If "9999" is set, tuning data will be invalid and the constant values for Mitsubishi motors (SF-PR,
SF-JR, SF-HR, SF-JRCA, SF-HRCA and SF-V5RU (1500 r/min series) and so on) are used.
5 - 452
2 2
–
I100 I0
Second
Name
motor Pr.
Motor excitation
455 current
(No-load current)
458 Motor constant (r1)
459 Motor constant (r2)
460 Motor constant (×1)
461 Motor constant (×2)
462 Motor constant (×m)
Torque current/Rated
860
PM motor current
560 Frequency search gain
Pr. 71 setting
Star connection motor
5
15
Setting range
0 to 500 A, 9999
0 to 3600 A, 9999
0 to 50 Ω, 9999
0 to 400 mΩ, 9999
0 to 50 Ω, 9999
0 to 400 mΩ, 9999
0 to 50 Ω, 9999
0 to 3600 mΩ, 9999
0 to 50 Ω, 9999
0 to 3600 mΩ, 9999
0 to 500 Ω, 9999
0 to 100 Ω, 9999
0 to 500 A, 9999
0 to 3600 A, 9999
0 to 32767, 9999
Parameters
Delta connection motor
6
16
Setting increments Initial value
0.01 A
0.1 A
0.001 Ω
0.01 mΩ
0.001 Ω
0.01 mΩ
0.001 Ω
9999
0.01 mΩ
0.001 Ω
0.01 mΩ
0.01 Ω
0.01 A
0.1 A
1