Diagnostics; Error Detection - WAGO 750 Manual

WAGO I/O System 750
753-661/000-004 4FDI 24V PROFIsafe
8

Diagnostics

8.1

Error Detection

Internal and external errors are detected and diagnosed in the F I/O module
through continuous self-testing. The F I/O module also generates warnings that
warn of potential errors. An overview of all detectable and diagnosed errors and
warnings can be found in section "Diagnostics" > ... > "Error Diagnostics."
The following information is described in the specified sections:
• The behavior of the F I/O module in case of error depends on the type of error;
see section "Diagnostics" > ... > "Behavior in Case of Error."
• Diagnostics are assigned to the individual errors; see section "Diagnostics" >
... > "Error Diagnostics."
• Acknowledging error messages; see section "Diagnostics" > ... >
"Acknowledging Error Messages."
Internal and external errors caused by strong EMC events
Both internal and external errors can be caused by strong EMC events. This can
cause a safety-related shutdown of the F I/O module. The user cannot
acknowledge a safety-related shutdown.
To check whether the cause of a safety-related shutdown was a temporary EMC
event, you can switch the entire fieldbus node off and then on again in an attempt
to reactivate the F I/O module.
If the safety-related shutdown occurs multiple times, the F I/O module must be
replaced. In such cases, return the defective F I/O module to WAGO GmbH &
Co. KG for fault analysis.
Version 1.0.0, valid from HW/SW Version 01/01
Diagnostics 83
Manual