14.3 Warning Displays
14.3.1 List of Warnings
14-49
14.3
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.
14.3.1
List of Warnings
The list of warnings gives the warning name, warning meaning in order of the warning num-
bers.
Warning
Number
Warning Name Meaning
A.900
Position Deviation Over-
flow
The position deviation exceeded the percentage set with the following
formula:
(Pn520 × Pn51E/100)
A.901
Position Deviation Over-
flow Alarm at Servo ON
The position deviation when the servo was turned ON exceeded the
percentage set with the following formula: (Pn526 × Pn528/100)
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.
A.911 Vibration
Abnormal vibration was detected during motor operation. The detec-
tion level is the same as A.520. Set whether to output an alarm or a
warning by setting Pn310 (Vibration Detection Switch).
A.912
Internal Temperature
Warning 1 (Control Board
Temperature Error)
The surrounding temperature of the control PCB is abnormal.
A.913
Internal Temperature
Warning 2 (Power Board
Temperature Error)
The surrounding temperature of the power PCB is abnormal.
A.920 Regenerative Overload
This warning occurs before an A.320 alarm (Regenerative Overload)
occurs. If the warning is ignored and operation is continued, an alarm
may occur.
A.921 Dynamic Brake Overload
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.
A.923
SERVOPACK Built-in Fan
Stopped
The fan inside the SERVOPACK stopped.
A.930
Absolute Encoder Bat-
tery Error
This warning occurs when the voltage of absolute encoder’s battery is
low.
A.93B Overheat Warning
The input voltage (temperature) of the overheat protection input (TH)
signal exceeded the setting of Pn61C (Overheat Warning Level).
A.942
Speed Ripple Compen-
sation Information Dis-
agreement
The speed ripple compensation information stored in the encoder
does not agree with the speed ripple compensation information stored
in the SERVOPACK.
A.971 Undervoltage
This warning occurs before an A.410 alarm (Undervoltage) occurs. If
the warning is ignored and operation is continued, an alarm may occur.
A.9b0
Preventative Mainte-
nance Warning
One of the consumable parts has reached the end of its service life.
A.A90 Positioning Timeout
A positioning completion timeout occurred during a positioning opera-
tion.
A.A94 Data Setting Warning A parameter was set outside of the setting range.
A.A95 Command Error There was an error in a command message.
A.A96
DeviceNet Communica-
tions Error
DeviceNet communications have timed out.
A.A97 Control Power Error The control power supply is not ON.
Continued on next page.
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