Auto-Tuning - YASKAWA U1000 Series Technical Manual

4.7 Auto-Tuning

4.7 Auto-Tuning
 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. Directions on how to execute Auto-Tuning are listed in
Start-Up Flowcharts on page
Note: The drive will only show Auto-Tuning parameters that are valid for the control mode that has been set to 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 Closed Loop Vector or CLV/PM.
Auto-Tuning for Induction Motors

This feature automatically sets the V/f pattern and motor parameters E1- and E2- (E3-, E4- for motor 2)
for an induction motor. In Closed Loop Vector, some F1- parameters for speed feedback detection are also set up.
Type
Rotational Auto-Tuning
Stationary Auto-Tuning 2
Stationary Auto-Tuning for
Line-to-Line Resistance
Rotational Auto-Tuning for V/f
Control
Stationary Auto-Tuning 3
Table 4.22 lists the data that must be entered for Auto-Tuning. Make sure this data is available before starting
Auto-Tuning.
The information needed is usually listed on the motor nameplate or in the motor test report provided by the motor
manufacturer. Also refer to
Performance Operation Using OLV or CLV on page 107
Input
Input Value
Parameter
Control Mode A1-02
Motor Rated Power T1-02
Motor Rated Voltage T1-03
Motor Rated Current T1-04
Motor Rated Frequency T1-05
Number of Motor Poles T1-06
Motor Rated Speed T1-07
PG Number of Pulses Per
T1-08
Revolution
Motor No-load Current T1-09
116
105.
Table 4.21 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.
T1-01 = 0 • Motor and load can not be decoupled but the motor load is below 30%.
• Rotational Auto-Tuning gives the most accurate results, and is therefore
highly recommended if possible.
• Motor and load can not be decoupled and the load is higher than 30%.
• A motor test report is available. Once the no-load current and the rated
T1-01 = 4
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 not
possible.
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and motor has been
T1-01 = 2
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 performed. Increases
accuracy for certain functions like torque compensation, slip
compensation, Energy Saving, and Speed Search.
• A motor test report listing motor data is not available.
• Motor can be driven with a normal duty mode after Auto-Tuning. A trial
T1-01 = 5
run is performed after Auto-Tuning to automatically calculate motor
parameters needed for vector control.
Subchart A-1: Simple Motor Setup Using V/f Control on page 106
Table 4.22 Auto-Tuning Input Data
Unit
Standard
–
kW
Vac
A
Hz
–
min -1
– YES
A
for details on Auto-Tuning process and selections.
2
0
Line-to-Line
Resistance
2, 3 0, 1, 2, 3
YES YES
YES N/A
YES YES
YES N/A
YES N/A
YES N/A
N/A
<1>
N/A N/A
YASKAWA ELECTRIC SIEP C710636 03A YASKAWA U1000 Technical Manual
Control Mode
V/f V/f w/PG
N/A N/A
N/A N/A
YES YES
YES YES
N/A N/A
and
Tuning Type (T1-01)
3
4
Rotational for
Stationary 2
V/f Control
0, 1 2, 3
YES YES
YES YES
YES YES
YES YES
YES YES
YES YES
N/A YES
<1>
N/A YES
OLV CLV
YES YES
YES YES
YES YES
N/A N/A
YES YES
Subchart A-2: High
5
Stationary 3
2, 3
YES
YES
YES
YES
YES
YES
YES
<1>
YES