Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-III Communication Reference - Manual (Page 335)

9 Troubleshooting
9.2.1 List of Warnings
9-24
9.2 Warning Displays
The following sections describe troubleshooting in response to warning displays.
The warning name and warning meaning output 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.
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 continues, 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.920 *1 Regenerative Overload
This warning occurs before the regenerative overload alarm (A.320) occurs. If
the warning is ignored and operation continues, a regenerative overload alarm
may occur.
Required
A.921 *1 Dynamic Brake Overload
This warning occurs before dynamic brake overload alarm (A.731) occurs. If
the warning is ignored and operation continues, a dynamic brake overload
alarm may occur.
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
*4
A.94B *2
Data Setting Warning 2
(Out of Range)
Command input data is out of range.
Automatic
reset
*4
A.94C *2
Data Setting Warning 3
(Calculation Error)
Calculation error was detected.
Automatic
reset
*4
A.94D *2
Data Setting Warning 4
(Parameter Size)
Data size does not match.
Automatic
reset
*4
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
*4
A.95B *2
Command Warning 2
(Non-supported
Command)
Unsupported command was sent.
Automatic
reset
*4
A.95D *2
Command Warning 4
(Command Interference)
Command, especially latch command, interferes.
Automatic
reset
*4
A.95E *2
Command Warning 5
(Subcommand Disable)
Subcommand and main command interfere.
Automatic
reset
*4
A.95F *2
Command Warning 6
(Undefined Command)
Undefined command was sent.
Automatic
reset
*4
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