
12.3 Warning Displays
12.3.1 List of Warnings
12-49
12
Maintenance
12.3
Warning Displays
If a warning occurs in the SERVOPACK, a warning number will be displayed on the panel dis-
play. Warnings are displayed to warn you before an alarm occurs.
This section provides a list of warnings and the causes of and corrections for warnings.
12.3.1
List of Warnings
The list of warnings gives the warning name and warning meaning in order of the warning num-
bers.
Warning
Number
Warning Name
Meaning
Resetting
A.900
Position Deviation
Overflow
The position deviation exceeded the percentage set
with the following formula:
(Pn520
×
Pn51E/100)
Required.
A.901
Position Deviation
Overflow Alarm at
Servo ON
The position deviation when the servo was turned ON
exceeded the percentage set with the following formula:
(Pn526
×
Pn528/100)
Required.
A.910
Overload
This warning occurs before an overload alarm (A.710 or
A.720) occurs. If the warning is ignored and operation is
continued, an alarm may occur.
Required.
A.911
Vibration
Abnormal vibration was detected during motor opera-
tion. The detection level is the same as A.520. Set
whether to output an alarm or a warning by setting
Pn310 (Vibration Detection Selection).
Required.
A.912
Internal Temperature
Warning 1 (Control
Board Temperature
Error)
The surrounding temperature of the control PCB is
abnormal.
Required.
A.913
Internal Temperature
Warning 2 (Power
Board Temperature
Error)
The surrounding temperature of the power PCB is
abnormal.
Required.
A.920
Regenerative Overload
This warning occurs before an A.320 alarm (Regenera-
tive Overload) occurs. If the warning is ignored and
operation is continued, an alarm may occur.
Required.
A.921
Dynamic Brake Over-
load
This warning occurs before an A.731 alarm (Dynamic
Brake Overload) occurs. If the warning is ignored and
operation is continued, an alarm may occur.
Required.
A.923
SERVOPACK Built-in
Fan Stopped
The fan inside the SERVOPACK stopped.
Required.
A.930
Absolute Encoder Bat-
tery Error
This warning occurs when the voltage of absolute
encoder’s battery is low.
Required.
A.93B
Overheat Warning
The input voltage (temperature) for the overheat protec-
tion input (TH) signal exceeded the setting of Pn61C
(Overheat Warning Level).
Required.
A.942
Speed Ripple Com-
pensation Information
Disagreement
The speed ripple compensation information stored in
the encoder does not agree with the speed ripple com-
pensation information stored in the SERVOPACK.
Required.
A.94A
Data Setting Warning 1
(Parameter Number
Error)
There is an error in the parameter number for a Data
Setting Warning 1 (Parameter Number) command.
Automatically
reset.
*
A.94b
Data Setting Warning 2
(Out of Range)
The command data is out of range.
Automatically
reset.
*
A.94C
Data Setting Warning 3
(Calculation Error)
A calculation error was detected.
Automatically
reset.
*
Continued on next page.