YASKAWA SGD7S-****20A Series - Page 474

12.3 Warning Displays
12.3.2 Troubleshooting Warnings
12
Maintenance
12-55
A.93B:
Overheat Warning
The surrounding
temperature is too
high.
Check the surrounding
temperature using a
thermostat.
Lower the surrounding tem-
perature by improving the
installation conditions of the
Linear Servomotor or the
machine.
–
Operation was
performed under
an excessive load.
Use the accumulated
load ratio to check the
load during operation.
Reconsider the load and
operating conditions.
–
A failure occurred
in the SERVO-
PACK.
–
The SERVOPACK may be
faulty. Replace the SERVO-
PACK.
–
The temperature
detection circuit in
the Linear Servo-
motor is faulty or
the sensor
attached to the
machine is faulty.
–
The temperature detection
circuit in the Linear Servo-
motor may be faulty or the
sensor attached to the
machine may be faulty.
Replace the Linear Servo-
motor or repair the sensor
attached to the machine.
–
A.942:
Speed Ripple Com-
pensation Informa-
tion Disagreement
The speed ripple
compensation
information stored
in the encoder
does not agree
with the speed
ripple compensa-
tion information
stored in the
SERVOPACK.
–
Reset the speed ripple
compensation value on the
SigmaWin+.
page 8-60
–
Set Pn423 to n.1 (Do
not detect A.942 alarms).
However, changing the set-
ting may increase the speed
ripple.
page 8-60
–
Set Pn423 to n.0
(Disable speed ripple com-
pensation). However,
changing the setting may
increase the speed ripple.
page 8-60
A.94A:
Data Setting Warn-
ing 1 (Parameter
Number Error)
An invalid param-
eter number was
used.
Check the command
that caused the warn-
ing.
Use the correct parameter
number.
page 12-
58
A.94b:
Data Setting Warn-
ing 2 (Out of Range)
The set com-
mand data was
clamped to the
minimum or maxi-
mum value of the
setting range.
Check the command
that caused the warn-
ing.
Set the parameter within
the setting range.
page 12-
58
A.94C:
Data Setting Warn-
ing 3 (Calculation
Error)
The calculation
result of the set-
ting is not correct.
Check the command
that caused the warn-
ing.
Set the parameter within
the setting range.
page 12-
58
A.94d:
Data Setting Warn-
ing 4 (Parameter
Size)
The parameter
size set in the
command is not
correct.
Check the command
that caused the warn-
ing.
Set the correct parameter
size.
page 12-
58
A.94E:
Data Setting Warn-
ing 5 (Latch Mode
Error)
A latch mode error
was detected.
Check the command
that caused the warn-
ing.
Change the setting of
Pn850 or the LT_MOD data
for the LTMOD_ON com-
mand sent by the host con-
troller to an appropriate
value.
(The applies when using the
MECHATROLINK-II-com-
patible profile.)
page 12-
58
Continued on next page.
Continued from previous page.
Warning Number:
Warning Name
Possible Cause Confirmation Correction Reference