76 Rockwell Automation Publication 5094-UM001C-EN-P - April 2019
Chapter 5 Safety I/O Module Features
Safety Input Fault Reset
The I/O channel supports a module-level user-configurable ‘Latch Fault until
reset via output tag’ mode and recovers from these faults:
• Field Power Off Detection
• Safety Input Short Circuit
‘Latch Fault until reset via output tag’ mode is Enabled.
When Latch Fault... mode is Enabled, the I/O channel holds safety input fault
indications until it checks that the fault is removed. If the fault is removed, the
channel clears the fault status only upon detecting that the ResetFault in its
consume assembly channel sees a rising edge.
‘Latch Fault until reset via output tag’ mode is Disabled.
When Latch Fault... mode is Disabled (default), the I/O channel holds safety
input fault indications for 1 second until it checks if the fault is removed. If the
fault is removed, the channel clears the fault status only upon detecting the safety
input is low on the screw. If not, the channel continues to check if the fault is
removed.