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Connecting Driveway Induction Loop to FAAC E045s Controller for Swing Gates

gshawxgeoffsx 315 3
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  • #1 21244818
    gshawxgeoffsx
    Level 2  
    Is it possible to attach a driveway induction loop to a FAAC E045s controller to open a pair of swing gates? PIRs and photocells are impractical because they are triggered by the resident wildlife. FAAC produces an induction loop controller but I can't find any information that connects it to this particular control board. Any advice would be appreciated.
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  • #2 21247523
    kotbury
    Gantry automation specialist
    Instructions for Faac induction loops.
    You need to think carefully about how they should work, i.e. whether the loop should be from the street or from the courtyard (or both), at what distance from the gate you want to install it and in general how it should work.
    To describe the simpler loop (single channel) - it has two relay outputs. One reflects the state of the loop - without the car the relay is open, with the presence of the car in the loop the relay shorts (or vice versa, depending on the setting of the micro switch). The second output, pulse output, is short-circuited for 0.2 s when a car leaves the loop.
    The pulse output can be used by connecting it to the control unit's OPEN A input, but it must be far from the gate, i.e. more likely only from the courtyard, and when the gate is open and entering from the street, passing through the loop will cause it to close. It is also possible to set the control unit for two-channel operation, i.e. the loop will only cause the gate to open and closing from the remote control with the second button, or to set the gate control unit for estate operation, i.e. the impulse from OPEN A will only open the gate, and closing will be automatic after a time delay.
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  • #3 21248230
    gshawxgeoffsx
    Level 2  
    Thank you for your detailed explanation. To clarify the layout, the 2-leaf swing gates are 20m away from the road and there are loops on both sides. The aim is for the loops to open the gates, which will close automatically after a preset delay. Photocells will delay closing if they are obstructed. A push switch fixed on either side of the gates wired across OP-B & -ve will open one leaf for pedestrian access.
    If I understand you correctly, setting the controller to NO and linked across OP-A & -ve should trigger the gates to open.
    Many thanks
  • #4 21250470
    kotbury
    Gantry automation specialist
    Paint a plan of what the location of the loops and gates looks like. If the loops are at a distance from the gate greater than the length of the car, use the 200 ms pulse relay output Rel 2 in the loop controller (the gate will open when the car leaves the loop).
    If the loops are right next to the gate, you use, as you wrote, the NO output Rel 1 (the gate will open after the car enters the loop) but you must add a pulse relay generating a 200-800 ms impulse on the rising edge.
    In addition, in the gate itself, in order to avoid the synchronisation of drives (i.e. so that opening does not turn into closing), you should use the settlement logic (logic A), i.e. the OPEN A control panel input generates only opening, closing is automatic.
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