Phoenix Contact · ib il safe 2-eco
This fault signifies a plausibility error in either sensor circuit 1 or 2 (external error), or that internal diagnostics are active (internal error). This state is observed when sensor circuits 1 and 2 are active and the segment circuit is open. Such an error indicates a potential inconsistency in sensor input logic or an internal device issue that could affect safety functions.
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For external errors: Check the affected sensor circuit (either 1 or 2) for proper operation and signal integrity