Auto-Tuning; Auto-Tuning; Types Of Auto-Tuning - YASKAWA A1000 Technical Manual

4.7 Auto-Tuning

4.7

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.
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. If the control mode is for a PM motor, the Auto-Tuning
parameters for induction motors will not be available. Inertia Tuning and ASR Gain Tuning parameters and setting options will be visible only
when the drive is set for operation with CLV or CLV/PM.
n Auto-Tuning for Induction Motors
This feature automatically sets the V/f pattern and motor parameters E1-oo and E2-oo (E3-oo, E4-oo for motor 2) for
an induction motor. Additionally, the feature also sets some F1-oo parameters for speed feedback detection in Closed Loop
Vector.
Type
Rotational Auto-Tuning
Stationary
Auto-Tuning 1
Stationary
Auto-Tuning 2
Stationary Auto-Tuning
for Line-to-Line
Resistance
Rotational Auto-Tuning
for V/f Control
Table 4.28 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 pages
116
Refer to Start-Up Flowcharts on page 81
Table 4.27 Types of Auto-Tuning for Induction Motors
Setting Application Conditions and Benefits
• Motor can be decoupled from the load and rotate freely
while Auto-Tuning is performed.
• Motor and load cannot be decoupled but the motor load is
T1-01 = 0
below 30%.
• Rotational Auto-Tuning gives the most accurate results,
and is recommended if possible.
• Motor and load cannot be decoupled and the load is higher
than 30%.
T1-01 = 1 • A motor test report listing motor data is not available.
• Automatically calculates motor parameters needed for
vector control.
• Motor and load cannot be decoupled and the load is higher
than 30%.
T1-01 = 4
• A motor test report is available. Once the no-load current
and the rated slip have been entered, the drive calculates
and sets all other motor-related parameters.
• 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
T1-01 = 2
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.
• 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.
83 and 84 for details on Auto-Tuning processes and selections.
YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
for directions on executing Auto-
Control Mode
V/f V/f w/PG OLV
– – YES
– – YES
– – YES
YES YES YES
YES YES –
CLV
YES
YES
YES
YES
–