9 Auto-Tuning
YASKAWA TOEPC71061752B GA500 Drive Installation & Primary Operation 73
Table 9.7 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 -
PM Motor Rated Current
(FLA)
T4-07 A x x
PM Motor Rated Power (kW) T4-08 kW 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 9.8 Control Loop Tuning Selection
Mode
Parame
ter
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
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