Ross 9201DR-104-03, User Manual

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10 • Before You Begin DETOUR User Guide (v3.0)
Operation
DETOUR has built in hysteresis mitigating bypass relay ‘chattering’ as a result of bypass error conditions coming
and going. DETOUR offers two modes for the bypass relay logic: Fast Recovery and Standard Failover.
Fast Recovery Mode
The bypass relay acts immediately on the first two bypass error condition state changes (e.g. error, error cleared),
then applies a user-configurable timer to prevent multiple state change triggers. (
Figure 2.2 )
Figure 2.2 DETOUR — Fast Recovery Mode Workflow
Standard Failover Mode
The bypass relay acts immediately on the first bypass error condition state change, then applies a user-configurable
timer before acting on further error condition state changes. (
Figure 2.3 )
Figure 2.3 DETOUR — Standard Failover Mode Workflow