What is the primary function of a safety edge in a gate system?

• A. To detect contact or pressure along the gate edge and trigger a stop or reverse
• B. To detect weather conditions
• C. To provide remote control access
• D. To measure gate travel distance

Answer: (D)

A safety edge is a pressure-sensitive strip or tube along the gate edge that detects contact or pressure. When it’s pressed by a person, vehicle, or object, it sends a signal to the gate operator to stop immediately or reverse. This immediate response is its primary safety function, helping prevent crush injuries and damage.

It isn’t meant to monitor weather, provide remote access, or measure how far the gate has traveled. Weather sensing, access control, and travel/position sensing are handled by other components in the system (weather sensors, remote controls, limit switches or position encoders).