98
YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Table 11.9 Parameters set in Control Tuning
Parameters Automatically Set
Deceleration Rate Tuning
KEB Tuning
C1-02 [Deceleration Time 1]
x
-
C1-08 [Deceleration Time 4]
x
-
C1-09 [Fast Stop Time]
-
x
L2-06 [Kinetic Energy Backup Decel
Time]
-
x
L3-25 [Load Inertia Ratio]
-
x
*1
The drive automatically sets
C1-08 [Deceleration Time 4]
only when
C1-11 [Accel/Decel Time Switchover
Freq] ≠ 0
.
*2
When
L2-29 = 0 [Kinetic Energy Backup Method = Single Drive KEB Ride-Thru 1]
, the drive will
automatically adjust
C1-09 [Fast Stop Time]
and will not adjust
L2-06 [Kinetic Energy Backup Decel
Time]
. If you must not change the Fast Stop time, do not do KEB Tuning.
*3
When
L2-29 = 1, 2, or 3 [Kinetic Energy Backup Method = Single Drive KEB Ride-Thru 2, System KEB
Ride-Thru 1, or System KEB Ride-Thru 2]
, the drive will automatically adjust
L2-06 [Kinetic Energy
Backup Decel Time]
.
◆
Precautions before Auto-Tuning
Examine the topics in this section before you start Auto-Tuning.
■
Prepare for Basic Auto-Tuning
•
You must input data from the motor nameplate or motor test report to do Auto-Tuning.
Make sure that this data is available before you do Auto-Tuning.
•
For best performance, make sure that the drive input supply voltage is equal to or more
than the motor rated voltage.
Note:
Better performance is possible when you use a motor with a rated voltage that is less than the input supply
voltage (by 20 V for 200 V class models or by 40 V for 400 V class models). This is very important when you
operate the motor at more than 90% of base speed, where high torque precision is necessary. If the input power
supply is equal to the motor rated voltage, the drive output voltage will not be sufficient and performance will
decrease.
•
Push
on the keypad to cancel Auto-Tuning.
•
If a Safe Disable input signal is input to the drive during Auto-Tuning, Auto-Tuning
measurements will not complete successfully. If this occurs, cancel the Auto-Tuning,
then do it again.
•
shows the status of multi-function input/output terminals during Auto-
Tuning.