Warning Displays; List Of Warnings - YASKAWA SGD7S Product Manual

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
Position Deviation Over-
A.900
flow
Position Deviation Over-
A.901
flow Alarm at Servo ON
A.910 Overload
A.911 Vibration
Internal Temperature
A.912 Warning 1 (Control Board
Temperature Error)
Internal Temperature
A.913 Warning 2 (Power Board
Temperature Error)
A.920 Regenerative Overload
A.921 Dynamic Brake Overload
SERVOPACK Built-in Fan
A.923
Stopped
Absolute Encoder Bat-
A.930
tery Error
A.93B Overheat Warning
Speed Ripple Compen-
A.942 sation Information Dis-
agreement
A.971 Undervoltage
Preventative Mainte-
A.9b0
nance Warning
A.A90 Positioning Timeout
A.A94 Data Setting Warning
A.A95 Command Error
DeviceNet Communica-
A.A96
tions Error
A.A97 Control Power Error
Warning Name
The position deviation exceeded the percentage set with the following
formula:
(Pn520 × Pn51E/100)
The position deviation when the servo was turned ON exceeded the
percentage set with the following formula: (Pn526 × Pn528/100)
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.
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).
The surrounding temperature of the control PCB is abnormal.
The surrounding temperature of the power PCB is abnormal.
This warning occurs before an A.320 alarm (Regenerative Overload)
occurs. If the warning is ignored and operation is continued, an alarm
may occur.
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.
The fan inside the SERVOPACK stopped.
This warning occurs when the voltage of absolute encoder's battery is
low.
The input voltage (temperature) of the overheat protection input (TH)
signal exceeded the setting of Pn61C (Overheat Warning Level).
The speed ripple compensation information stored in the encoder
does not agree with the speed ripple compensation information stored
in the SERVOPACK.
This warning occurs before an A.410 alarm (Undervoltage) occurs. If
the warning is ignored and operation is continued, an alarm may occur.
One of the consumable parts has reached the end of its service life.
A positioning completion timeout occurred during a positioning opera-
tion.
A parameter was set outside of the setting range.
There was an error in a command message.
DeviceNet communications have timed out.
The control power supply is not ON.
14.3 Warning Displays
14.3.1 List of Warnings
Meaning
Continued on next page.
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