YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
97
◆
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 11.8 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 automatically set parameters
C1-02 [Deceleration Time 1]
(high speed
range) and
C1-08 [Deceleration Time 4]
(low speed range).
■
KEB Tuning
KEB Tuning automatically sets parameters used for the KEB Ride-Thru function and for
the overvoltage suppression function.
Control Tuning automatically sets the parameters in
to the best values.