Yaskawa Σ-V Series AC Servo Drives Rotational Motor Analog Voltage Reference - Manual (Page 274)

9.2 Warning Displays
9-15
9
Trou
blesh
ooting
9.2
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 9.2.1 List of Warnings .
The causes of warnings and troubleshooting methods are provided in 9.2.2 Troubleshooting of Warnings .
9.2.1 List of Warnings
This section provides list of warnings.
Note: If Pn008.2 = 1 (does not detect warning) is selected, no warnings will be detected.
Warning
Number
Warning Name Meaning
A.900 Position Error Overflow
Position error exceeded the parameter setting
(Pn520 × Pn51E/100).
A.901
Position Error Overflow Alarm at
Servo ON
When the servomotor power is ON, the position error exceeded
the parameter setting (Pn526
× Pn528/100).
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.
A.911 Vibration
Abnormal vibration at the motor speed was detected. The detec-
tion level is the same as A.520. Set whether to output an alarm or
warning by the vibration detection switch (Pn310).
A.930 Absolute Encoder Battery Error
This warning occurs when the voltage of absolute encoder’s bat-
tery is lowered.
A.941
Change of Parameters Requires
Restart
Parameters that require the restart have been changed.
A.9A0 Overtravel Overtravel is detected while the servomotor power is ON.