Startup Procedure and Test Run
3
3.5 Auto-Tuning
YASKAWA TOEPYAIGA5002A GA500 DRIVE PROGRAMMING 475
Table 3.10 EZ Tuning Mode Selection
Mode
Parameter
Settings
Application Conditions and Benefits
Applicable Control Method
(A1-02 Setting)
Motor Parameter Setting T4-01 = 0
• Applicable when driving an induction motor or a PM motor
• Suitable for derating torque applications, for example fans and
pumps.
EZOLV
(8)
Line-to-Line Resistance T4-01 = 1
• After Auto-Tuning, the wiring distance between the drive and
motor changed by 50 m or more.
• When the motor output and drive capacity are different.
EZOLV
(8)
■ Auto-Tuning Input Data in EZ Open Loop Vector Control Method
To do Auto-Tuning, input data for the items in Table 3.11 that have an "x". Before you start Auto-Tuning, prepare the
motor test report or record the information from the motor nameplate as a reference.
Table 3.11 Auto-Tuning Input Data in EZ Open Loop Vector Control Method
Input Data Parameter Unit
Auto-Tuning Mode
(T4-01 Setting)
Motor Parameter
Setting
(0)
Line-to-Line Resistance
(1)
Motor Type Selection T4-02 - x -
Motor Max Revolutions T4-03 min
-1
x -
Motor Rated Revolutions T4-04 min
-1
x -
Motor Rated Frequency T4-05 Hz x -
Motor Rated Voltage T4-06 V x -
Motor Rated Current (FLA) T4-07 A x x
PM Motor Rated Power (kW) T4-08 kW x x
Number of Motor Poles T4-09 - x -
◆ ASR and Inertia Tuning
To increase drive responsiveness and prevent hunting, use Auto-Tuning to automatically adjust the control-related
parameters.
These types of Auto-Tuning are available for the control system:
• Deceleration Rate Tuning
• KEB Tuning
Note:
If you do Control Tuning, you cannot set H1-xx = 16 [Motor 2 Selection]. Do not do Control Tuning for applications that switch between
motor 1 and motor 2.
Table 3.12 Control Loop Tuning Selection
Mode
Parameter
Settings
Application Conditions and Benefits
Applicable Control Methods (A1-02 Settings)
V/f
(0)
OLV
(2)
OLV/PM
(5)
AOLV/PM
(6)
EZOLV
(8)
Deceleration Rate
Tuning
T3-00 = 2
To automatically adjust the deceleration rate to prevent
an ov [Overvoltage] fault.
x x x x x
KEB Tuning T3-00 = 3
• To automatically adjust parameter settings to
prevent an ov [Overvoltage] fault with the KEB
Ride-Thru function.
• When L3-11 = 1 [Overvoltage Suppression Select =
Enabled].
x x x x x
■ Deceleration Rate Tuning
Deceleration Rate Tuning automatically sets the deceleration rate to prevent an ov [Overvoltage] fault during motor
deceleration. Set C1-11 [Accel/Decel Time Switchover Freq] first to automatically set parameters C1-02
[Deceleration Time 1] (high speed range) and C1-08 [Deceleration Time 4] (low speed range).
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