Mitsubishi Electric FR-F820-00046 Instruction Manual page 370

Fr-f800 series
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*2
Set Pr.71 Applied motor according to the motor to be used and the motor constant setting range. According to the Pr.71 setting, the range of
the motor constant parameter setting values and units can be changed. (For other setting values of Pr.71, refer to
Motor
SF-JR, SF-TH
Mitsubishi Electric
SF-JR 4P 1.5 kW or lower
standard motor
Mitsubishi Electric
SF-HR
high-efficiency motor
Others
SF-JRCA 4P, SF-TH (constant-
torque)
Mitsubishi Electric
constant-torque motor
SF-HRCA
Others (SF-JRC, etc.)
Mitsubishi Electric
high-performance
SF-PR
energy-saving motor
Other manufacturer's
standard motor
Other manufacturer's
constant-torque motor
NOTE
• When Pr.11 DC injection brake operation time = "0" or Pr.12 DC injection brake operation voltage = "0", offline auto
tuning is performed at the initial setting of Pr.11 or Pr.12.
• If "wye connection" or "delta connection" is incorrectly selected in Pr.71, Advanced magnetic flux vector control is not
performed properly.
• For tuning accuracy improvement, set the following parameters when the motor constants are known in advance.
First motor
Second
Pr.
motor Pr.
707
744
724
745
*3
The setting is valid only when a value other than "9999" is set in both Pr.707 (Pr.744) and Pr.724 (Pr.745).
 Performing tuning
• Before performing tuning, check the monitor display of the operation panel or parameter unit if the inverter is in the state ready
for tuning. The motor starts by turning ON the start command while tuning is unavailable.
• In the PU operation mode, press
For External operation, turn ON the start command (STF signal or STR signal). Tuning starts.
parameter mH, %, and A
0 (initial value)
20
40
0 (initial value)
1
50
1
70
0 (initial value)
1
Name
Motor inertia (integer)
Motor inertia (exponent)
/
on the operation panel.
Pr.71 setting
Motor constant
Motor constant
parameter internal
unit setting
data setting
3 (4)
23 (24)
43 (44)
3 (4)
13 (14)
53 (54)
13 (14)
73 (74)
3 (4)
13 (14)
Mitsubishi Electric
motor (SF-JR, SF-HR,
SF-JRCA, or SF-
HRCA)
Motor inertia
9999 (initial value)
Jm = Pr.707 × 10^(-Pr.724) (kg·m
page
362.)
Motor constant
parameter Ω, mΩ, and
A unit setting
5 (wye connection motor)
6 (delta connection
motor)
15 (wye connection
motor)
16 (delta connection
motor)
Other motors
*3
2
)
5. PARAMETERS
5.10 (C) Motor constant parameters
1
2
3
4
5
6
7
8
9
10
369

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