Safe Box electronic evaluation SIL3

Safe Box is an extension of the redundant absolute shaft information systems LIMAX3R and LIMAX4R. It serves as an additional component for monitoring the position and speed of the car, as well as the shaft and cabin doors. The system ensures important safety-relevant requirements in the shaft, e.g. limit switch function, speed limitation, also relative to the distance to the shaft end, door-bridging function for leveling and readjust with open doors, detection of unintended car movement with open doors. In case of error, the safety circuit will be opened and/or the clasp brake will be triggered. The Safebox is SIL3 certified by TÜV and complies the requirements of the EN81-20/50 norm.

• Safety function unit for the redundant shaft information systems LIMAX3R or LIMAX4 R
• Replaces electromechanical components in the elevator shaft
• Up to 3 pairs of safety relay pairs for safety-relevant switching and control functions
• Up to 5 safety inputs, 1 electronical output and 1 safety circuit input
• CANopen interface DS406, others on request,
• RS485 for sensor communication
• EC type examination tested (EN 81-20/50)
• TÜV certification for SIL3