E6581158
E-4
5
[Setting methods]
Key operated LED display Operation
.
Displays the operation frequency. (Perform during operation stopped.)
(When standard monitor display selection H is set to [Op-
eration frequency])
CWJ
The first basic parameter “CWJ” (history function) is displayed.
CW
Press the key to change the parameter to CW (automatic torque
boost)
Pressing the ENTER key allows the reading of parameter setting.
Press the △ key to change the parameter to 1 (sensorless vector
control + auto-tuning). (Programmed value at the right and the his-
tory at the left)
⇔ CW
Press the ENTER key to save the changed parameter. CW and the
parameter are displayed alternately.
Note 1: The same characteristic can be obtained by setting the V/F control mode selection parameter RV to
(automatic torque boost control) and the auto-tuning parameter H to (auto-tuning).
⇒ See 5.12
Note 2: Setting CW to automatically programs RV to .
Note 3: The accuracy of auto-tuning can be increased by specifying the rated current of the driven motor,
using the motor rated current setting parameter H.
2) When using vector control (increasing starting torque and high-precision opera-
tions)
Set the automatic control CW to (sensorless vector control + auto-tuning)
Setting Automatic control CW to (sensorless vector control + auto-tuning) provides high starting torque
bringing out the maximum in motor characteristics from the low-speed range. This suppresses changes in
motor speed caused by fluctuations in load to provide high precision operation. This is an optimum feature for
elevators and other load transporting machinery.
MODE
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