Auto-Tuning - YASKAWA A1000 Series Quick Start Manual

◆ Auto-Tuning

Types of Auto-Tuning
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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
Flowcharts on page 58.
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-
for an induction motor. In Closed Loop Vector, some F1-
Type Setting
Rotational Auto-Tuning T1-01 = 0
Stationary Auto-Tuning
T1-01 = 1
1
Stationary Auto-Tuning
T1-01 = 4
2
Stationary Auto-Tuning
for Line-to-Line
T1-01 = 2
Resistance
Rotational Auto-Tuning
T1-01 = 3
for V/f Control
Table 43 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 page
YASKAWA ELECTRIC TOEP C710616 21C YASKAWA AC Drive - A1000 Quick Start Guide
Table 42 Types of Auto-Tuning for Induction Motors
Application Conditions and Benefits
• 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 highly recommended if possible.
• Motor and load can not be decoupled and the load is
higher than 30%.
• A motor test report listing motor data is not available.
• Automatically calculates motor parameters needed for
vector control.
• 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.
• 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 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.
• Assumes motor can rotate while Auto-Tuning is
executed. Increases accuracy for certain functions like
torque compensation, slip compensation, Energy Saving,
and Speed Search.
60 and 61 for details on Auto-Tuning process and selections.
4 Start-Up Programming & Operation
and E2-
parameters for speed feedback detection are also set up.
V/f
N/A
N/A
N/A
YES
YES
Start-Up
(E3- , E4- for motor 2)
Control Mode
V/f w/PG OLV CLV
N/A YES YES
N/A YES YES
N/A YES YES
YES YES YES
YES N/A N/A
4
91