Mitsubishi Electric FR-E720-008 Instruction Manual page 86

Adjustment of the output torque (current) of the motor
<Selection method of Advanced magnetic flux vector control>
Mitsubishi standard
motor
Mitsubishi high
efficiency motor
Mitsubishi constant-
torque motor
Other manufacturer's
standard motor
Other manufacturer's
constant-torque
motor
∗1
Refer to page 117, for other settings of Pr. 71.
∗2
Refer to page 119 for offline auto tuning.
Set the motor capacity and the number of motor poles.
Select the control method. (Pr. 800) (Refer to page 85)
Set the operation command. (Refer to page 193)
As required
Perform offline auto tuning. (Pr. 96) (Refer to page 119)
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.)
86
Perform secure wiring.
(Refer to page 14)
Set the motor. (Pr. 71)
Motor
SF-JR
SF-HR
Others
SF-JRCA 4P
SF-HRCA
Others (SF-JRC, etc.)
—
—
(Pr. 80, Pr. 81) (Refer to page 85)
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).
Set "20" (initial value) in Pr. 800 to make Advanced magnetic flux vector control
valid.
Select the start command and speed command.
(1)Start command
(2)Speed command
Test run
Pr. 71 Setting ∗1
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 (terminal 2 or 4):
Give a speed command using the analog signal input to terminal 2 (or
terminal 4).
3)Multi-speed command:
The external signals (RH, RM, RL) may also be used to give speed
command.
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
∗2
∗2
∗2
∗2