
The Eden safety sensor is a non-contact interlock device used to supervise the position of protective guards, doors, or machine parts without mechanical wear. It consists of two parts: Adam (the sensor part) and Eva (the coded actuator). When Adam and Eva are within sensing range (typically 0–15 mm gap), Adam detects Eva's presence via an RFID or magnetic coded signal, and the safety circuit is closed; when separated, the safety circuit opens and triggers a machine stop. Eden achieves the highest safety level (PL e, Cat.4, SIL 3) with only one sensor per guard because of its internal redundancy and coding. Different Eden models interface to different safety modules: Eden DYN connects to ABB Vital or Pluto safety PLC (dynamic single-channel signal), while Eden OSSD provides two redundant OSSD outputs for direct connection to standard safety relays/inputs. The sensor's design allows a 360° mounting orientation and large mounting tolerances, simplifying installation on swinging or sliding guards. Eden sensors are extremely robust (IP67 and IP69K) and resist shock, vibration, and wash-down conditions – the Eden C versions even have coated electronics for high humidity and rapid temperature changes (ideal for food/beverage washdowns). Each Eden set is highly coded (unique code models available) to prevent defeat by simple magnets and to meet EN ISO 14119 requirements for tamper resistance. Status LEDs and an information output on certain models (StatusBus) provide diagnostic information such as alignment and door status. Additionally, multiple Eden sensors can be wired in series (cascaded) while still maintaining PL e safety level, reducing wiring and the number of safety inputs needed. By using Eden sensors on safety gates and hatches, manufacturers achieve reliable safety interlocks with no mechanical actuator breakage and minimal alignment issues, resulting in improved uptime and ease of maintenance.
| Safety Level | Cat. 4, PL e, SIL 3 with one sensor (highly coded sensor per EN ISO 14119) |
| Sensing Principle | RFID/Magnetic coded non-contact (requires Adam & Eva pairing) |
| Sensing Distance | 0 to 15 mm typical operating distance (10 mm assured switch-off) |
| Misalignment Tolerance | ±5 mm in XY, ±2° in angle approx. (very forgiving 360° mounting) |
| Output Type | Eden DYN: 1 dynamic dual-frequency signal (for Vital/Pluto) | Eden OSSD: 2 x PNP safety outputs + 1 x info output (24 V DC, 500 mA max per channel) |
| Response Time | < 0.1 s from separation to safety output off (fast acting) |
| Power Supply | 24 V DC (typically 24 V ±10%, supplied from safety module) |
| Indicators | LEDs on Adam: e.g. Green (status), Yellow (alignment or info) – extensive diagnostics available |
| Construction | PBT plastic encapsulated, IP67/IP69K rated; Adam has M12 plug (8-pin for OSSD, 4-pin for DYN); Eva is passive part |
| Ambient Range | –40 °C to +70 °C (Eden C extended humidity version); standard –20 °C to +55 °C |
| Mounting | Two M4 screws for each of Adam and Eva; any orientation (Adam can sense Eva at 0–360° approach) |
| Special Features | Series connection of up to 30 Eden in Cat.4 loop (with Vital/Pluto or OSSD wiring); integrated Local Reset input on Adam (for edge reset button) to simplify wiring; StatusBus option for aggregated diagnostics |





