Mitsubishi Electric FR-E720-0.4K Instruction Manual page 34

Acquiring large starting torque and low speed torque (Advanced magnetic flux vector control, General-purpose magnetic flux vector control) (Pr. 71, Pr. 80, Pr. 81, Pr. 800)
5.3.2 Selection method of General-purpose magnetic flux vector control
Mitsubishi Electric
standard motor
Mitsubishi Electric
high efficiency motor
Mitsubishi Electric
constant-torque
motor
Other manufacturer's
standard motor
Other manufacturer's
constant-torque
motor
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Refer to Chapter 4 of the Instruction Manual (Applied) for other settings of Pr. 71 and offline auto tuning.
Set the motor overheat protection. (Pr. 9) (Refer to page 32.)
Set the motor capacity and the number of motor poles.
Set the rated motor voltage and frequency.
Select the control method. (Pr. 800) (Refer to page 28.)
Set the operation command. (Refer to page 20.)
As required
 Perform offline auto tuning. (Pr. 96) (
 Set slip compensation. (Pr. 245, Pr. 246, Pr. 247) (
NOTE
 Uneven rotation slightly increases as compared to the V/F control. (It is not suitable for machines such as grinding
machine and wrapping machine which requires less uneven rotation at low speed.)
 When a surge voltage suppression filter (FR-ASF-H/FR-BMF-H) is connected between the inverter and motor, output
torque may decrease.
30
Perform secure wiring.
(Refer to page 8.)
Set the motor.(Pr. 71)
Motor
SF-JR
SF-HR
Others
SF-JRCA 4P
SF-HRCA
Others (SF-JRC, etc.)
—
—
Set the rated motor current (A) in Pr.9 Electronic thermal O/L relay.
(Pr. 80, Pr. 81) (Refer to page 28.)
Set motor capacity (kW) in Pr. 80 Motor capacity and
the number of motor poles (number of poles) in Pr. 81 Number of motor poles.
(V/F control is performed when the setting is "9999" (initial value).
(Pr. 83, Pr. 84) (Refer to page 28.)
Set the rated motor voltage (V) in Pr.83 Rated motor voltage, and
set the rated motor frequency (Hz) in Pr.84 Rated motor frequency.
Set "30" in Pr. 800 to make General-purpose magnetic flux vector control valid.
Select the start command and speed command.
(1) Start command
(2) Speed command
Test run
Refer to Chapter 4 of the Instruction Manual (Applied).)
Pr. 71 Setting 
0 (initial value)
40
3
1
50
13
3
13
1) Operation panel: Setting by pressing
2) External command: Setting by forward rotation or reverse rotation
command (terminal STF or STR)
1) Operation panel: Setting by pressing
2) External analog command: Set by the terminal 2 or the terminal 4
3) Multi-speed command: Set by the external signals (RH, RM, RL)
Refer to Chapter 4 of the Instruction Manual (Applied).)
Remarks
Offline auto tuning is necessary.
Offline auto tuning is necessary.
Offline auto tuning is necessary.
Offline auto tuning is necessary.
of the operation panel
of the operation panel
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