Fail-safe operation
9.3 Safety-related dialogs
Mobile Panels 2nd Generation
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Operating Instructions, 09/2018, A5E33876626-AC
Displaying error codes and resetting the fail-safe module
1.
If you want to view the error codes of the fail-safe module with respect to the associated
controllers, open the "Show Error List" dialog with the "Show fatal errors" link.
Make a note of the entry under "Version" and the content of the "Error List".
2.
Close the dialog with the "Close" button.
3.
Click the "Reset safety module" button.
The fail-safe module of the Mobile Panel restarts; the fail-safe automation system
continues to run in fail-safe mode.
If the error persists, please contact Technical Support, see section
"Service and support (Page 268)". Have ready the data you wrote down in the first step.
Discrepancy error
The following table shows the discrepancy warnings. If these warnings occur more
frequently, you must send in the device for repair.
Error message
Meaning
789 Internal discrepancy error (0)
Discrepancy at the emergency stop button
789 Internal discrepancy error (1)
Discrepancy at acknowledgment button switch position 2
789 Internal discrepancy error (2)
Discrepancy at acknowledgment button switch position 3
