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Motor Data for Auto-Tuning
Table 5.19 Parameters Set During Auto-Tuning
No. Name Description Range Def.
T1-00 Motor Selection 1/2
Selects which set of motor parameters are set during Auto-Tuning. If motor 2 selection (H1-oo=16) is not
selected, this parameter will not be displayed.
1: Motor 1 - E1 to E22: Motor 2 - E3 to E4. Enabled when motors 1 and 2 are switched to each other (H1-
oo=16). Displayed only when either multi-function contact output H1-01 through H1-07 is set to 16.
1, 2 1
T1-
Auto-Tuning Mode
Selection
Selects the Auto-Tuning mode.
0: OLV Rotational Auto-Tuning
2: Terminal resistance only, Stationary Auto-Tuning
3: V/f Rotational Auto-Tuning.
Only settings 2 and 3 are available when using V/f Control. Only setting 2 is available when using motor 2.
Settings 0 and 2 are available when using OLV Control.
0, 2, 3 0 (“2” in V/f mode)
T1-02 Motor Rated Power
Sets the motor rated output power. A set value that can provide stable control in the open loop control mode
ranges from 50 to 100% of the drive rating. In case of motors that operate above base speed, set the value at base
speed.
0.00 to 650.00 0.40 kW
T1-03
Motor Rated
Voltage
Set the motor base voltage according to the information printed on the motor nameplate. In case of motors that
operate above base speed, set the value at base speed.
0.0 to 255.5 200.0 V
T1-04
Motor Rated
Current
Enter the motor-rated current as specified on the motor nameplate. For best performance when using OLV select
the drive so that the motor represents 50 to 100% of the drive rated current. Enter the current required at base
speed for motors with extended speed ranges.
10 to 200% of drive
rated current
Det. by o2-04 and
C6-01
T1-05
Motor Base
Frequency
Enter the motor base frequency as specified on the motor nameplate. Enter the motor base frequency for extended
speed range motors.
0.0 to 400.0 60.0 Hz
T1-06
Number of Motor
Poles
Enter number of motor poles indicated on motor nameplate. 2 to 48 4
T1-07 Motor Base Speed
Sets the base speed of the motor in revolutions per minute r/min (RPM). Enter the motor base speed for extended
speed range motors.
0 to 24000 1750. r/min
T1-11 Motor Iron Loss
Provides iron loss for determining Energy Saving coefficient. When power is cycled, the value set to E2-10 will
appear (the motor iron loss). If T1-02 is changed, an initial value for the motor capacity will appear that is close
to the capacity that was changed.
0 to 65535 14W
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Precision Settings for Auto-Tuning
Basic motor nameplate data can be used to auto-tune a motor. However, improved performance can be achieved by using precise data for base voltage
and base frequency. If the base no-load voltage and frequency are known, enter this data when executing auto-tuning to improve performance.
Parameter Normal Settings Precision Tuning
T1-03 Enter the motor rated voltage Enter the no-load voltage when the motor is operating at its rated revolutions per minute
T1-05 Enter the motor base frequency Enter the no-load frequency when the motor is operating at its rated revolutions per minute
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No-Load Operation
This section explains how to operate the drive with the motor uncoupled from the load during a test run.
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Before Starting the Motor
Check the following items before operation:
• Ensure the area around the motor is safe.
• Set the proper motor rated current to T1-04 to prevent overheating or other damage from motor overload.
• Ensure external emergency stop circuitry is working properly and other safety precautions have been taken.
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During Operation
Check the following items during operation:
• The motor should rotate smoothly (i.e., no abnormal noise or oscillation).
• The motor should accelerate and decelerate smoothly.
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Operation Instructions
The following example illustrates a procedure to run the drive using the digital operator.
Note: Before starting the motor, set the frequency reference to 6 Hz.
Step Display/Result
1. Turn on the power to the drive. The initial display appears.
⇒
2.
Press the key to select LOCAL. The LO/RE LED will turn on.
⇒
5.11 Auto-Tuning
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
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5
Parameter Details
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