Mitsubishi Electric FR-A820-00046 (0.4K), Instruction Manual

Page: 671 / 1218

Parameters (C) Motor constant parameters
FR-A800 5 - 469
Changing the motor constant (if setting the Pr. 92 and Pr. 93 motor constants in units of [Ω])
●
Set Pr. 71 as shown below.
●
Set a given value as the motor constant parameter.
Iq = torque current, I100 = rated current, I0 = no load current
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.
Applicable motor
Pr. 71 setting
Star connection motor Delta connection motor
Standard motor 5 6
Constant-torque motor 15 16
First
motor Pr.
Second
motor Pr.
Name Setting range Setting increments Initial value
82 455
Motor excitation
current
(No-load current)
0 to 500 A, 9999 0.01 A
9999
0 to 3600 A, 9999 0.1 A
90 458 Motor constant (r1)
0 to 50 Ω, 9999 0.001 Ω
0 to 400 mΩ, 9999 0.01 mΩ
91 459 Motor constant (r2)
0 to 50 Ω, 9999 0.001 Ω
0 to 400 mΩ, 9999 0.01 mΩ
92 460 Motor constant (×1)
0 to 50 Ω, 9999 0.001 Ω
0 to 3600 mΩ, 9999 0.01 mΩ
93 461 Motor constant (×2)
0 to 50 Ω, 9999 0.001 Ω
0 to 3600 mΩ, 9999 0.01 mΩ
94 462 Motor constant (×m)
0 to 500 Ω, 9999
0.01 Ω
0 to 100 Ω, 9999
859 860
Torque current/Rated
PM motor current
0 to 500 A, 9999 0.01 A
0 to 3600 A, 9999 0.1 A
298 560 Frequency search gain 0 to 32767, 9999 1
Tab. 5-188: Parameter setting ranges
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.
lq I100
2
I0
2
–
=