Points Flick
The Points Flick Alert is designed to fire when detection is lost on a set of points during the passage of a train.
Real Example
(1547 points out of correspondence while CT track circuit occupied)
Channel Inputs
Track Circuit TPR | The track circuit that runs over the set of points |
---|---|
Normal Detection NKR | The normal detection input channel |
Reverse Detection RKR | The reverse detection input channel |
Logic
The alert will fire if either the NKR or RKR changes state whilst the TPR is in Dn state.
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