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This is the web edition of the original ⮫ AC500-S safety user manual, version 1.3.2. This web edition is provided for quick reference only. The original safety user manual must be used to meet functional safety application requirements. |
Fault reaction time is the maximum time between the appearance of the fault in the system and the trigger of pre-defined error reactions. The table below provides an overview on the longest fault reaction times in AC500-S safety modules.
|
Module |
Fault reaction time |
|
|---|---|---|
|
Internal faults (e.g., RAM cell fault) |
External faults (e.g., wrong wiring) |
|
|
AC500-S safety CPUs |
< 24 h |
Not applicable |
|
DI581-S safety I/O |
< 24 h |
< 1.9 s |
|
DX581-S safety I/O |
< 24 h |
< 0.5 s |
|
AI581-S safety I/O |
< 24 h |
< 0.8 s |
Contact ABB technical support for more detailed fault reaction times, if needed.