148
YASKAWA
TOEPC7106170YB YASKAWA AC Drive GA500 Installation & Primary Operation
Code
Name
Causes
Possible Solutions
The acceleration time is too
short.
•
Calculate the torque necessary during
acceleration related to the load inertia
and the specified acceleration time.
•
Increase the values set in
C1-01, C1-
03, C1-05, or C1-07 [Acceleration
Times]
until you get the necessary
torque.
•
Increase the values set in
C2-01 to
C2-04 [S-Curve Characteristics]
until
you get the necessary torque.
•
Replace the drive with a larger
capacity model.
The drive is trying to operate a
specialized motor or a motor
that is larger than the maximum
applicable motor output of the
drive.
•
Examine the motor nameplate, the
motor, and the drive to make sure that
the drive rated current is larger than
the motor rated current.
•
Replace the drive with a larger
capacity model.
The current level temporarily
increased because of speed
search after a momentary power
loss or while trying to Auto
Restart.
If speed search or Auto Restart cause an
increase in current, the drive can
temporarily show this alarm. The time
that the drive shows the alarm is short.
No more steps are necessary to clear the
alarm.
L24v
Loss of External
Power 24 Supply
The voltage of the backup 24 V
power supply has decreased.
The main circuit power supply
is operating correctly.
•
Examine the external 24 V power
supply for disconnected wires and
wiring errors and repair the problems.
•
Examine the external 24 V power
supply for problems.
LoG
Log Com Error
There is not a micro SD in the
keypad.
Put a micro SD card in the keypad.
•
The drive is connected to
USB.
•
The number of log
communication files is more
than 1000.
•
The micro SD card does not
have available memory
space.
•
The line number data in a log
communication file was
changed.
•
A communication error
between the keypad and
drive occurred during a log
communication.
Set
o5-01 = 0 [Log Start/Stop Selection
= OFF]
.