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F-35
6.20 Setting motor constants
Auto-tuning Motor constant #5
Slip frequency gain Number of motor poles
Motor constant #1 Rated capacity of motor
Motor constant #2 Motor type
Motor constant #3 Auto-tuning prohibition
Motor constant #4
Warning
Mandatory
Do not set the motor parameter #3(Exciting inductance: ) less than or equal to a half
of default value. If the motor parameter #3(Exciting inductance: ) was set at a
extremely small value, stall prevention function would work and output frequency would rise.
When using the vector control or the automatic torque boost, it is necessary to set (tuning) motor
constants. You can set motor constants by any of the following three methods.
After setting by one of three methods, drive the motor.
1) Using the automatic V/f mode setting () to make the setting of the motor control mode
selection () and the auto-tuning parameter () at a time
2) Setting the motor control mode () and the auto-tuning parameter () individually
3) Setting the motor control mode () and setting motor constants manually
<Note> If tuning error () occurs when the power is turned on, set the motor type at (others).
[Selection 1: Setting by the automatic V/f mode]
This is the simplest way of setting. With the automatic control parameter, you can set the
automatic torque boost, the sensorless vector control and the auto-tuning parameter at a time.
Automatic V/f mode (Automatic torque boost + auto-tuning)
Automatic V/f mode (Sensorless vector control + auto-tuning)
Automatic V/f mode (Automatic energy-saving + auto-tuning)
Refer to 5.2 for details of this setting.
[Selection 2: Individually setting the vector control and the auto-tuning]
This is the method for individually setting the vector control and the auto-tuning. You need to
set the control mode with the motor control mode selection
, before auto-tuning setting.
Set the auto-tuning (Automatic tuning execution)
[Parameter setting]
Title Function
Adjustment range
Default setting
Auto-tuning
: Without auto-tuning (internal table)
: Motor constant initialization ( after execution)
: Automatic tuning execution ( after execution)
Here are the setting conditions for each type of motor.
Applicable motor
Type motor poles Capacity
Auto-tuning
Same capacity as the inverter Not required
4P
Different capacity from the inverter
Same capacity as the inverter
Toshiba
standard motor
others
Different capacity from the inverter
Other motors
Required