11.3 Warning Displays
11-35
Inspection, Maintenance, and
Troubleshooting
1
1
11.3
Warning Displays
The following sections describe troubleshooting in response to warning displays.
The warning name and warning meaning are listed in order of the warning numbers in
11.3.1 List of Warnings
.
The causes of warnings and troubleshooting methods are provided in
11.3.2 Troubleshooting of Warnings
.
11.3.1
List of Warnings
This section provides list of warnings.
Warning
Number
Warning Name
Meaning
Reset
Setting
Parameter
A.900
Position Error Overflow
Position error exceeded the parameter setting
(Pn520
×
Pn51E/100).
Required
Pn008.2
A.901
Position Error Overflow
Alarm at Servo ON
When the servomotor power turns ON, the
position error exceeded the parameter setting
(Pn526
×
Pn528/100).
Required
Pn008.2
A.910
Overload
This warning occurs before the overload
alarms (A.710 or A.720) occur. If the warning
is ignored and operation continues, an over-
load alarm may occur.
Required
Pn008.2
A.911
Vibration
Abnormal vibration at the motor speed was
detected.
Required
Pn008.2
A.91A
Converter Electric Operation
Overload
This warning occurs before the converter
electric operation overload alarm (A.72A)
occurs. If the warning is ignored and opera-
tion continues, a converter electric operation
overload alarm may occur.
Required
–
A.91B
Converter Power Supply
Regenerative Overload
This warning occurs before the converter
power supply regenerative overload alarm
(A.72B) occurs. If the warning is ignored and
operation continues, a converter power supply
regenerative overload alarm may occur.
Required
–
A.921
Dynamic Brake Overload
This warning occurs before dynamic brake
overload alarm (A.730 or A.731) occurs. If
the warning is ignored and operation contin-
ues, a dynamic brake overload alarm may
occur.
Required
Pn008.2
A.923
Built-in Fan in SERVOPACK
Stopped
The fan inside the SERVOPACK stopped.
Required
Pn00D.2
A.92B
Built-in Fan in Converter
Stopped
The fan inside the power regeneration con-
verter stopped.
Required
Pn00D.2
*
A.930
Absolute Encoder Battery
Error
This warning occurs when the voltage of
absolute encoder’s battery is lowered.
Required
Pn008.2
A.971
Undervoltage
This warning occurs before undervoltage
alarm (A.410) occurs. If the warning is
ignored and operation continues, an under-
voltage alarm may occur.
Required
Pn008.1
A.97D
Converter Heat Sink
Overheated
This warning occurs before the converter heat
sink overheated alarm (A.7BA) occurs. If the
warning is ignored and operation continues, a
converter heat sink overheated alarm may
occur.
Required
–
∗
If Pn00D.2 is set to 1 in any of the SERVOPACKs, this warning is detected for all axes when the servos are turned
ON.
Note: If Pn008.2 is set to 1 to prevent detection of warnings, only the following warnings will be detected:
A.91A, A.91B, and A.92B