YASKAWA V1000 Series

5.11 Auto-Tuning
Auto-Tuning automatically sets and tunes parameters required for motor operation.
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Types of Auto-Tuning
There are three types of Auto-Tuning.
Refer to Auto-Tuning Selection on page 92 to select the best type of Auto-Tuning for the application.
Type Setting Application Conditions and Benefits Control Mode
Rotational Auto-Tuning for V/
f Control
T1-01 = 3
Assumes the motor can rotate during the Auto-Tuning process.
Improves torque compensation, slip compensation, energy savings, and speed search
performance.
V/f Control
Rotational Auto-Tuning for
OLV Control
T1-01 = 0
Assumes the motor can rotate during the Auto-Tuning process
Achieves high-performance motor control
Open Loop Vector Control
Stationary Auto-Tuning for V/
f and OLV Control Line-to-
Line Resistance Only
T1-01 = 2
For use when the motor cable exceeds 50 m
The motor cable length has been modified after Auto-Tuning has been previously
performed
When motor capacity and drive capacity differ
V/f Control, Open Loop Vector Control
Note: Auto-Tuning cannot be performed on permanent magnet motors (IPM, SPM, etc.).
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Auto-Tuning Selection
V/f Rotational
Auto-Tuning
(T1-01 = 3)
Stationary Auto-Tuning
for Terminal Resistance Only
(T1-01 = 2)
Rotational
Auto-Tuning
(T1-01 = 0)
Select V/f Control
Mode (A1-02 = “0”)
for the drive.
Run the motor without the load.
Connect the load and run the motor.
Verify system operates as required.
Is the cable
between the motor
and drive longer
than 50 m?
YES
NO
NO
YES
NO
YES
YES
Auto-Tuning finished.
NOTICE: Auto-Tuning with
a connected load is possible,
but may result in less than
optimum performance.
Note: Manually set parameters
when OLV control is needed.
START
Select a V/f pattern
E1-03
Open Loop Vector
A1-02 = 2
Select the Motor Control Mode A1-02
Can the load be
disconnected from
the motor?
Will the application
allow motor rotation
for Auto-Tuning?
NO
PM Open Loop Vector Control
A1-02 = 5
Is the total
connected load
expected to be less
than 30% of the motor
rating?
V/f Control
A1-02 = 0
Figure 5.75
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Before Auto-Tuning the Drive
Check the items below before Auto-Tuning the drive:
5.11 Auto-Tuning
210
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)