YASKAWA LA500, Technical Manual

Page: 367 / 376

Parameter
Details
12
12.11 T: Auto-Tuning
YASKAWA SIEPYEULA5001C LA500 Technical Manual 367
12.11 T: Auto-Tuning
Numbers identifying the T parameters are displayed when an LED keypad is used. The names of the parameters
are displayed on the LCD screen of the LCD keypad. Set the following.
• Induction Motor Auto-Tuning
• PM Motor Auto-Tuning
• ASR and Inertia Tuning
◆
T1: Induction Motor Auto-Tuning
T1 parameters set the Auto-Tuning input data for induction motor tuning.
Note:
• The base frequency of drive dedicated motors and special motors for use with vector control may be lower than the base frequency of
general-purpose motors, which is 50 Hz or 60 Hz. In such cases, this lower frequency is used as the value for
E1-06 [Base Frequency]
and E1-04 [Maximum Output Frequency] after Auto-Tuning completes. If the maximum output frequency is too low and causes
problems, change the setting of E1-04 after Auto-Tuning completes.
• The following induction motor parameters are set automatically.
– E1-xx [V/f Pattern for Motor 1]
–
E2-xx [Motor Parameters]
■
T1-01: Auto-Tuning Mode Selection
No.
(Hex.)
Name Description
Default
(Range)
T1-01
(0701)
Tuning Mode Selection
Sets the type of Auto-Tuning.
Determined by A1-02
(Determined by A1-02)
0 : Rotational Auto-Tuning
Default setting if A1-02 = 2 [Open Loop Vector] .
1 : Stationary Auto-Tuning 1
2 : Stationary Line-Line Resistance
Default setting if A1-02 = 0 [V/f Control] .
■
T1-02: Motor Rated Power
No.
(Hex.)
Name Description
Default
(Range)
T1-02
(0702)
Motor Rated Power
Uses the units set in o1-58 [Motor Power Unit Selection] to set the motor rated output power.
Determined by o2-04
(0.00 - 650.00 kW)
■
T1-03: Motor Rated Voltage
No.
(Hex.)
Name Description
Default
(Range)
T1-03
(0703)
Motor Rated Voltage
Sets the rated voltage (V) of the motor. Enter the base speed voltage for constant output motors.
400 V Class: 400.0 V
(400 V Class: 0.0 - 511.0 V)
If you do Auto-Tuning on a drive-dedicated motor or a specialized motor for vector control, the voltage or
frequency can be lower than that of a general-purpose motor. Always compare the data from the nameplate or test
report with the Auto-Tuning results and check for differences. Enter the voltage necessary to operate the motor in
no-load conditions at rated speed for better control precision around rated speed. If the motor test report or the
motor nameplate is not available, enter approximately 90% of the motor rated voltage.
If the drive input power supply voltage is low, enter approximately 90% of the input voltage. When the input
power supply voltage is low, the current will increase. Make sure that the main power supply capacity is correct
and use a molded-case circuit breaker for the drive.
■
T1-04: Motor Rated Current
No.
(Hex.)
Name Description
Default
(Range)
T1-04
(0704)
Motor Rated Current
Sets the rated current (A) of the motor.
Determined by o2-04
(10% to 200% of the drive
rated current)
V/f OLV
V/f OLV
V/f OLV
V/f OLV