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E6580757
F-36
6
6.13 Setting motor constants
: Auto-tuning
: Slip frequency
: Motor primary constant
: Motor secondary constant
: Motor excitation constant
: Magnification of load inertial moment
: Rated capacity ratio of motor to inverter
To use vector control, automatic torque boost and automatic energy-saving, motor constant setting (motor tuning)
is required. The following three methods are available to set motor constants (for automatic torque boosting,
however, two methods are available):
1) Using the automatic torque boost (
) for setting the V/F control mode selection
(
) and auto-tuning ( ) at the same time
2) Setting the V/F control mode selection (
) and auto-tuning ( ) independently
3) Combining the V/F control mode selection (
) and manual tuning
Sensorless vector control may not operate properly if the motor capacity differs from the applicable rated capacity
of the inverter by more than two grades.
[Selection 1: Setting by automatic torque boost]
This is the easiest of the available methods. It conducts vector control and auto-tuning at the same time.
Set the automatic torque boost parameter ( ) to " "
(Sensorless vector control + auto-tuning).
See Section 5.2 for details of the setting method.
[Selection 2: Setting sensorless vector control and auto-tuning independently]
This method sets sensorless vector control or automatic torque boost, and auto-tuning independently.
Specify the control mode in the V/F control mode selection parameter "(
)" and then set auto-tuning.
Set the auto-tuning parameter ( ) to " ".