Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-II Communication Reference - Manual (Page 333)

9 Troubleshooting
9.2.1 List of Warnings
9-22
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.
∗1. Use Pn008.2 to activate or not the warning detection.
∗2. Use Pn800.1 to activate or not the warning detection.
∗3. Use Pn008.1 to activate or not the warning detection.
Warning
Number
Warning Name Meaning
A.900 *1 Position Error Overflow
Position error exceeded the parameter setting
(Pn520
×Pn51E/100).
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).
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.
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).
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.
A.921 *1 Dynamic Brake Overload
This warning occurs before dynamic brake overload alarm (A.731) occurs. If the warn-
ing is ignored and operation continues, a dynamic brake overload alarm may occur.
A.930 *1 Absolute Encoder Battery Error This warning occurs when the voltage of absolute encoder’s battery is lowered.
A.94A *2
Data Setting Warning 1
(Parameter Number Error)
Incorrect command parameter number was set.
A.94B
*2
Data Setting Warning 2
(Out of Range)
Command input data is out of range.
A.94C *2
Data Setting Warning 3
(Calculation Error)
Calculation error was detected.
A.94D *2
Data Setting Warning 4
(Parameter Size)
Data size does not match.
A.94E *2
Data Setting Warning 5
(Latch Mode Error)
Latch mode error is detected.
A.95A *2
Command Warning 1
(Unsatisfying Command)
Command was sent although the conditions for sending a command were not satisfied.
A.95B *2
Command Warning 2
(Non-supported
Command)
Unsupported command was sent.
A.95D *2
Command Warning 4
(Command Interference)
Command, especially latch command, interferes.
A.95E *2
Command Warning 5
(Subcommand Disable)
Subcommand and main command interfere.
A.95F
*2
Command Warning 6
(Undefined Command)
Undefined command was sent.
A.960 *2
MECHATROLINK
Communications Warning
Communications error occurred during MECHATROLINK communications.
A.971 *3 Undervoltage
This warning occurs before undervoltage alarm (A.410) occurs. If the warning is
ignored and operation continues, an undervoltage alarm may occur.
A.9A0 *1 Overtravel Overtravel is detected while the servomotor power is ON.