Auto-tuning, Types of auto-tuning, 8 auto-tuning – Yaskawa Z1000 AC Drive HVAC User Manual
Page 136
4.8 Auto-Tuning
u
Types of Auto-Tuning
The drive offers different types of Auto-Tuning for induction motors and permanent magnet motors. The type of Auto-Tuning
used differs further based on the control mode and other operating conditions. Refer to the tables below to select the type of
Auto-Tuning that bests suits the application.
Refer to Start-Up Flowcharts on page 113
for directions on executing Auto-
Tuning.
Note:
The drive will only show Auto-Tuning parameters that are valid for the control mode that has been set in A1-02. If the control mode is for
an induction motor, the Auto-Tuning parameters for PM motors will not be available.
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Auto-Tuning for Induction Motors
This feature automatically sets the V/f pattern and motor parameters E1- and E2- for an induction motor.
Table 4.18 Types of Auto-Tuning for Induction Motors
Type
Setting
Application Conditions and Benefits
Control
Mode
V/f
Stationary Auto-Tuning for Line-
to-Line Resistance
T1-01 = 2
• 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
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.
YES
Rotational Auto-Tuning for V/f
Control
T1-01 = 3
• Recommended for applications using Speed Estimation Speed Search or using
the Energy Saving function in
V/f Control.
• Assumes motor can rotate while Auto-Tuning is executed. Increases accuracy
for certain functions like torque compensation, slip compensation, Energy
Saving, and Speed Search.
YES
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. Also refer to page
for details on Auto-Tuning processes and selections.
Table 4.19 Auto-Tuning Input Data
Input Value
Input Parameter
Unit
Tuning Type (T1-01)
2
Line-to-Line Resistance
3
Rotational for
V/f Control
Motor rated power
T1-02
kW
YES
YES
Motor rated voltage
T1-03
Vac
–
YES
Motor rated current
T1-04
A
YES
YES
Motor rated frequency
T1-05
Hz
–
YES
Number of motor poles
T1-06
–
–
YES
Motor rated Speed
T1-07
r/min
–
YES
Motor iron loss
T1-11
W
–
YES
4.8 Auto-Tuning
136
YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual