Warning Displays; List Of Warnings - YASKAWA UAK series User Manual

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
A.900 Position Error Overflow
Position Error Overflow
A.901
Alarm at Servo ON
A.910 Overload
A.911 Vibration
Converter Electric Operation
A.91A
Overload
Converter Power Supply
A.91B
Regenerative Overload
A.921 Dynamic Brake Overload
Built-in Fan in SERVOPACK
A.923
Stopped
Built-in Fan in Converter
A.92B
Stopped
Absolute Encoder Battery
A.930
Error
A.971 Undervoltage
Converter Heat Sink
A.97D
Overheated
∗
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
Warning Name
Position error exceeded the parameter setting
(Pn520×Pn51E/100).
When the servomotor power turns ON, the
position error exceeded the parameter setting
(Pn526×Pn528/100).
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.
Abnormal vibration at the motor speed was
detected.
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.
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.
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.
The fan inside the SERVOPACK stopped.
The fan inside the power regeneration con-
verter stopped.
This warning occurs when the voltage of
absolute encoder's battery is lowered.
This warning occurs before undervoltage
alarm (A.410) occurs. If the warning is
ignored and operation continues, an under-
voltage alarm may occur.
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.
Meaning
Required
Required
Required
Required
Required
Required
Required
Required
Required
Required
Required
Required

11.3 Warning Displays

Setting
Reset
Parameter
Pn008.2
Pn008.2
Pn008.2
Pn008.2
–
–
Pn008.2
Pn00D.2
*
Pn00D.2
Pn008.2
Pn008.1
–
1
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1