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2.5 Failsafe Alarm Relay Wiring and Specifications
The “Failsafe” output relay is provided to signal critical error conditions that may
occur on RS2000 series products. The contacts are energized upon power-up of
the unit and remain energized unless a critical error occurs. The proper relay
connections are shown in Figure 23. Control of this output is user selectable and
can be programmed via the Rugged Operating System (ROS). One common
application for this output is to signal an alarm if a power failure or removal of
control power occurs.
Figure 23: Failsafe Alarm Relay Wiring
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