Auto-Tuning; Auto-Tuning; Types Of Auto-Tuning; Before Auto-Tuning The Drive - YASKAWA Z1000 Technical Manual

4.7

Auto-Tuning

u

Types of Auto-Tuning

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 4.14 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.
Input Value
Motor rated power
Motor rated voltage
Motor rated current
Motor rated frequency
Number of motor poles
Motor rated Speed
Motor iron loss
u

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 208 V models
and 40 V for 480 V 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 OFF key on the HOA keypad.
• When using a motor contactor, make sure it is closed throughout the Auto-Tuning process.
YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
Table 4.13 Types of Auto-Tuning for Induction Motors
Setting
• The drive is used in V/f Control and other Auto-Tuning selections are not
possible.
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and motor has been replaced
T1-01 = 2
with a cable over 50 m long. Assumes Auto-Tuning has already been
performed.
• Should not be used for any vector control modes unless the motor cable has
changed.
• 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.
Table 4.14 Auto-Tuning Input Data
Input Parameter
T1-02
T1-03
T1-04
T1-05
T1-06
T1-07
T1-11
Application Conditions and Benefits
Unit
2
Line-to-Line Resistance
kW YES
Vac –
A YES
Hz –
- –
r/min –
W –

4.7 Auto-Tuning

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