YASKAWA A1000

120 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 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 109.
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 wi th 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.
Table 4.21 Types of Auto-Tuning for Induction Motors
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 Subchart A-1: Simple Motor Setup Using V/f Control on page 110 and Subchart A-2: High
Performance Operation Using OLV or CLV on page 111 for details on Auto-Tuning proce
ss and selections.
Table 4.22 Auto-Tuning Input Data
Type Setting Application Conditions and Benefits
Control Mode
V/f V/f w/PG OLV CLV
Rotational Auto-Tuning
T1-01 = 0
• Motor can be decoupled from the load and
rotate freely while
Auto-Tuning is performed.
• 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
hig
hly recommended if possible.
N/A N/A YES
YES
Stationary Auto-Tuning 1
T1-01 = 1
• Motor and load can not be decoupled and the load is higher than 30%.
• A motor test report listing mot
or data is not available.
• Automatically calculates motor paramet
ers that are needed for vector
control.
N/A N/A YES
YES
Stationary Auto-Tuning 2
T1-01 = 4
• 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
slip have been entered, the drive calculates and sets all other
motor-related parameters.
N/A N/A YES
YES
Stationary Auto-Tuning for
Line-to-Line Resistance
T1-01 = 2
• The drive is used in V/f Control and o
ther Auto-Tuning selections not
possible.
• Drive and motor capacities differ.
• Tunes the drive after the cable between the drive and motor has been
r
eplaced with a cable over 50 m long. Assumes Auto-Tuning has already
been performed.
• Should not be used for any vector cont
rol modes unless the motor cable
has changed.
YES YES YES
YES
Rotational Auto-Tuning for V/f
Control
T1-01 = 3
• Recommended for applications using Speed Es
timation Speed Search or
using the Energy Saving function in V/f Control.
• Assumes motor can rotate while Auto-Tuning is performed. Increases
ac
curacy for certain functions like torque compensation, slip
compensation, Energy Saving, and Speed Search.
YES YES N/A N/A
Stationary Auto-Tuning 3 T1-01 = 5
• A motor test report listing mot
or data is not available.
• Motor can be driven with a normal
duty mode after Auto-Tuning. A trial
run is performed after Auto-Tuning to automatically calculate motor
parameters needed for vector control.
N/A N/A YES YES
Input Value
Input
Parameter
Unit
Tuning Type (T1-01)
0
Standard
1
Stationary 1
2
Line-to-Line
Resistance
3
Rotational for
V/f Control
4
Stationary 2
5
Stationary 3
Control Mode A1-02 – 2, 3 2, 3 0, 1, 2, 3 0, 1 2, 3 2, 3
Motor rated power T1-02 kW YES YES YES YES YES YES
Motor rated voltage T1-03 Vac YES YES N/A YES YES YES
Motor rated current T1-04 A YES YES YES YES YES YES
Motor rated frequency T1-05 Hz YES YES N/A YES YES YES
Number of motor poles T1-06 – YES YES N/A YES YES YES
Motor rated Speed T1-07
min
-1
YES YES N/A YES YES YES