WECO‑917A71‑AC220 Elevator Light Curtain, AC220V Infrared Door Safety Sensor, 94 Beams Infrared Photocell

WECO‑917A71‑AC220 is classic WECO infrared elevator light curtain powered by AC220V, consisting of infrared transmitter, receiver and matching power supply box1688阿.... Equipped with 94 infrared beams, detection range reaches 0‑4000mm. IP54 protection grade resists dust and slight moisture inside elevator car door environment It adopts anti‑interference infrared signal processing, stable signal output, built‑in fault self‑check function. Standard wiring harness and waterproof aviation plug support quick installation and direct replacement, no extra modification needed. Complies with elevator safety standards, widely used for passenger elevator maintenance, renovation and modernization projects.

Functions

1. Installed on elevator car door both sides, detects passengers, kids or obstacles within door closing area by infrared beams.
2. Triggers signal to reopen elevator door when objects block infrared beams, prevents pinching passengers during door closing.
3. Built‑in self‑diagnosis monitors working status, feeds abnormal signal to elevator control system.
4. Solves light curtain common faults such as door not re‑opening, no response, intermittent failure, restores elevator door safety protection.

Rich Content (Working Environment, Parameters & Notes)

Working voltage: AC220V; Protection class: IP54 for sensor strips, IP31 for power box. Operating temperature:‑20℃ ~ +60℃; Relative humidity ≤95%, non‑condensing. Suitable for indoor elevator shaft and car‑door environment. Keep away from heavy corrosive gas, oil pollution and strong direct sunlight. Cut off power supply before installation. Regularly clean dust on infrared lens to avoid false detection or detection failure. Fit for most general‑purpose passenger lifts in residential buildings, offices and commercial buildings. Direct substitute for broken original WECO‑917A71‑AC220 unit.

Elevator Light Curtain – FAQs

Q1: How does an elevator light curtain work?
An elevator light curtain uses multiple infrared beams to detect objects within the protected doorway area. When an obstruction is detected, it sends a signal to the door control system to initiate the appropriate door response.

Q2: Are elevator light curtains compatible with different door systems?
Not always. Compatibility depends on supply voltage, output signals, controller interfaces, mounting dimensions, detection coverage, and applicable safety requirements.

Q3: Why does an elevator door keep reopening when no obstacle is visible?
Possible causes include sensor contamination, misalignment, wiring faults, controller problems, or other door protection signals. Repeated reopening does not necessarily indicate a defective light curtain.

Q4: Can an elevator light curtain be replaced without changing the door controller?
In some systems, a compatible light curtain can be replaced separately. However, the electrical interface, output logic, detection coverage, and safety requirements must be verified.

Q5: What specifications should I provide when ordering a replacement elevator light curtain?
Please provide the original model, supply voltage, sensor dimensions, detection area, output type, connector photos, and door controller model.