Auto-Tuning; Auto-Tuning For Induction Motors - YASKAWA GA700 Technical Manual

3.8 Auto-Tuning

3.8

Auto-Tuning

Auto-Tuning uses motor characteristics to automatically set drive parameters for vector control. Think about the
type of motor, drive control method, and the motor installation environment and select the best Auto-Tuning
method.
The keypad will show the messages with prompts to input the necessary parameter information. These prompts
are specified by the selected Auto-Tuning method and the control method setting in A1-02.
WARNING! Crush Hazard. Rotational Auto-Tuning rotates the motor at a frequency that is 50% or more of the rated frequency
of the motor. Make sure that there are no issues related to safety in the area around the drive and motor. Failure to obey can
cause death or serious injury and damage to machinery.
◆

Auto-Tuning for Induction Motors

This section gives information about Auto-Tuning for induction motors. Set these parameters for Auto-Tuning:
• Motor parameters E1-xx, E2-xx (E3-xx, E4-xx for motor 2)
• Speed feedback detection-use F1-xx (only with CLV)
Note:
Do Stationary Auto-Tuning if you cannot do Rotational Auto-Tuning. There can be large differences between the measured results and
the motor characteristics when Auto-Tuning is complete. Examine the parameters for the measured motor characteristics after you do
Stationary Auto-Tuning.
Type
Rotational Auto-Tuning
Stationary Auto-Tuning 1
Line-to-Line Resistance
192
Table 3.6 Types of Auto-Tuning for Induction Motors
Parameter
Application Conditions and Benefits
Settings
• When you can decouple the motor and
load the motor can rotate freely while
Auto-Tuning.
• When operating motors that have fixed
output characteristics.
T1-01 = 0
• When it is necessary to use motors that
have high-precision control.
• When you cannot decouple the motor
and load, but the motor load is less than
30%.
• When you cannot decouple the motor
and load, but the motor load is more
than 30%.
• When the information from the motor
test report or motor nameplate is not
available.
Note:
With Stationary Auto-Tuning, the
energized drive stays stopped for
T1-01 = 1
approximately 1 minute. During this
time, the drive automatically measures
the necessary motor parameters.
• When operating the motor with a light
load after Auto-Tuning.
The drive can automatically calculate
the motor parameter settings necessary
for torque control. Set T1-12 = 1 [Test
Mode Selection = Yes] to do a test run
after Auto-Tuning.
• After Auto-Tuning, the wiring distance
between the drive and motor changed by
50 m or more.
T1-01 = 2 • When the wiring distance is 50 m or
more in the V/f Control mode.
• When the motor output and drive
capacity are different.
YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
Applicable Control Method
(A1-02 Value)
V/f CL-V/f OLV CLV
(0) (1) (2) (3)
x x x
- - x
x x x
AOLV
(4)
x x
x x
x x