Auto-Tuning; Auto-Tuning; Types Of Auto-Tuning; Before Auto-Tuning The Drive - YASKAWA P1000 Technical Manual

4.7

Auto-Tuning

u

Types of Auto-Tuning

The drive offers different types of Auto-Tuning for induction motors. Refer to the tables below to select the type of Auto-
Tuning that bests suits the application.
n Auto-Tuning for Induction Motors
This feature automatically sets the V/f pattern and motor parameters E1-oo and E2-oo for an induction motor.
Type
Stationary Auto-Tuning for Line-to-
Line Resistance
Rotational Auto-Tuning for V/f
Control
Table 4.13 lists the data that must be entered for Auto-Tuning. Make sure this data is available before starting Auto-Tuning.
The necessary information is usually listed on the motor nameplate or in the motor test report provided by the motor
manufacturer. Refer to Start-Up Flowchart on page 124
Input Value
Motor rated power
Motor rated voltage
Motor rated current
Motor rated frequency
Number of motor poles
Motor rated Speed
Motor iron loss
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Before Auto-Tuning the Drive

Check the items below before Auto-Tuning the drive.
n Basic Auto-Tuning Preparations
• Auto-Tuning requires the user to input data from the motor nameplate or motor test report. Make sure this data is available
before Auto-Tuning the drive.
• For best performance, the drive input supply voltage must be at least equal to or greater than the motor rated voltage.
Note: Better performance is possible when using a motor with a base voltage that is lower than the input supply voltage (20 V for 200 V class
models, 40 V for 400 V class models, and 60 V for 600 V class models). This is particularly important when operating the motor above
90% of base speed, where high torque precision is required.
• To cancel Auto-Tuning, press the STOP key on the digital operator.
• When using a motor contactor, make sure it is closed throughout the Auto-Tuning process.
Table 4.14 describes digital input and output terminal operation while Auto-Tuning is executed.
YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual
Refer to Start-Up Flowchart on page 124
Table 4.12 Types of Auto-Tuning for Induction Motors
Setting
• The drive is used in V/f Control and other Auto-Tuning selections are not possible.
• Perform when entering motor data manually while using motor cables longer than 50
m.
T1-01 = 2
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and motor has been replaced with a
cable over 50 m long. Assumes Auto-Tuning has already been performed.
• Recommended for applications using Speed Estimation Speed Search or using the
Energy Saving function in V/f Control.
T1-01 = 3
• Assumes motor can rotate while Auto-Tuning is executed. Increases accuracy for
certain functions like torque compensation, slip compensation, Energy Saving, and
Speed Search.
for details on the Auto-Tuning process.
Table 4.13 Auto-Tuning Input Data
Input Parameter
T1-02
T1-03
T1-04
T1-05
T1-06
T1-07
T1-11
for directions on executing Auto-Tuning.
Application Conditions and Benefits
Unit
2
Line-to-Line Resistance
kW YES
Vac –
A YES
Hz –
- –
r/min –
W –

4.7 Auto-Tuning

Tuning Type (T1-01)
3
Rotational for V/f
Control
YES
YES
YES
YES
YES
YES
YES
4
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