Chapter 10 CPU Function
Displays the current error/warning
Displays the error/warning that occur in chronological order
Notice
The saved error history is deleted by clicking ‘Clear’ in the error/warning window.
If the error history exceeds 1,024, it is removed from the earliest history, and the latest 1,024 history is saved.
10.3.4 Failure Management
(1) Failure Types
The troubles are caused by failure of the motion controller itself, system configuration’s error, error detection of
operational results, etc. They can be divided into the failure mode stopping the operation for system safety; minor
failure mode that informs a user of failure warning and resumes the operation.
The failures of the motion controller system are mainly caused by the below.
• Motion controller hardware’s problems
• Operational error during execution of user programs
• Detection of errors caused by external device failure
(2) Operation mode in case of failures
In case failures occur, the motion controller system records the failure details in the special flag (F area) and
determines whether resuming the operation based on the failure mode.
• In case of the motion controller hardware’s failure
In case there are problems with the motion controller, power, etc. that the motion controller cannot works
normally, the system will be stopped; In case of minor failures such as a battery’s low voltage, the warning
is displayed and the operation will be resumed.
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