Auto-Tuning; Auto-Tuning For Induction Motors - Omron Q2A Series Technical Manual

4.6 Auto-Tuning

4.6

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 [Control Method].
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 [E1: V/F PARAMETER MOTOR 1], E2-xx [E2: MOTOR 1 PARAMETERS] (E3-xx
[E3: V/F PARAMETER MOTOR 2], E4-xx [E4: MOTOR 2 PARAMETERS] for motor 2)
• Speed feedback detection-use F1-xx [F1: ENCODER] parameters (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
Rotary Auto Tune
Static1 AutoTune
Static (R)
■
Input Data for Induction Motor Auto-Tuning
To do Auto-Tuning, input data for the items in the following table that have an "×". Before starting Auto-Tuning,
record the information on the motor nameplate as a reference.
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Table 4.6 Types of Auto-Tuning for Induction Motors
Parameter Settings Application Conditions and Benefits
• 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 approximately 1 minute. During
T1-01 = 1
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.
• When the wiring distance is 50 m or more in the V/f
T1-01 = 2
Control mode.
• When the motor output and drive capacity are
different.
Applicable Control Method
(Value of A1-02 [Control Method])
V/f PG V/f OLVec
Control Control tor
(0) (1) (2)
× × ×
- - ×
× × ×
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual
CLVec Adv
tor OLVec
tor
(3)
(4)
× ×
× ×
× ×