Yaskawa Σ-V Series AC Servo Drives Rotational Motor MECHATROLINK-III - Manual (Page 271)

8 Troubleshooting
8.2.1 List of Warnings
8-16
8.2
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 8.2.1 List of Warnings .
The causes of warnings and troubleshooting methods are provided in 8.2.2 Troubleshooting of Warnings .
8.2.1 List of Warnings
This section provides list of warnings.
Warning
Number
Warning Name Meaning Reset
A.900 *1 Position Error Overflow
Position error exceeded the parameter setting
(Pn520
× Pn51E/100).
Required
A.901 *1
Position Error Overflow
Alarm at Servo ON
When the servomotor power is ON, the position error
exceeded the parameter setting (Pn526
× Pn528/100).
Required
A.910 *1 Overload
This warning occurs before the overload alarms (A.710 or
A.720) occur. If the warning is ignored and operation contin-
ues, an overload alarm may occur. Required
A.911
*1 Vibration
Abnormal vibration at the motor speed was detected. The
detection level is the same as A.520. Set whether to output an
alarm or warning by the vibration detection switch (Pn310).
Required
A.930 *1
Absolute Encoder Battery
Error
This warning occurs when the voltage of absolute encoder’s
battery is lowered.
Required
A.94A *2
Data Setting Warning 1
(Parameter Number Error)
Incorrect command parameter number was set.
Automatic
reset
*3
A.94B *2
Data Setting Warning 2
(Out of Range)
Command input data is out of range.
Automatic
reset
*3
A.94C
*2
Data Setting Warning 3
(Calculation Error)
Calculation error was detected.
Automatic
reset
*3
A.94D *2
Data Setting Warning 4
(Parameter Size)
Data size does not match.
Automatic
reset
*3
A.94E *2
Data Setting Warning 5
(Latch Mode Error)
Latch mode error is detected. Required
A.95A *2
Command Warning 1
(Unsatisfying Command)
Command was sent although the conditions for sending a
command were not satisfied. Automatic
reset
*3
A.95B *2
Command Warning 2
(Non-supported Command)
Unsupported command was sent.
Automatic
reset
*3
A.95D *2
Command Warning 4
(Command Interference)
Command, especially latch command, interferes.
Automatic
reset
*3
A.95E *2
Command Warning 5
(Subcommand Disable)
Subcommand and main command interfere.
Automatic
reset
*3
A.95F *2
Command Warning 6
(Undefined Command)
Undefined command was sent.
Automatic
reset
*3
A.960 *2
MECHATROLINK
Communications Warning Communications error occurred during MECHATROLINK
communications.
Required
A.962 *2
MECHATROLINK
Communications Warning
(FCS Error)
Communications error occurred during MECHATROLINK
communications.
Required
A.963 *2
MECHATROLINK
Communications Warning
(Synchronization Frame Not
Received)
The synchronization frame was not received during
MECHATROLINK communications.
Required
A.97A *2
Command Warning 7
(Phase Error)
A command that cannot be executed in the current phase was
sent. Automatic
reset
*3