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How do I choose a replacement elevator door light curtain?

Ask Time: 2026-02-18
Answer
Identify the existing transmitter and receiver, supply, output interface, mounting arrangement and cable routing. Check the door controller's input requirements. A light curtain that fits the door height may still be electrically incompatible or unsuitable for the required door-protection function.
Answer Time: 2026-02-18

Derived Questions

Does a light curtain with more beams automatically meet elevator door safety requirements?
No. Compliance depends on the exact device, detection performance, installation and required system behavior. Ask for product-specific documentation covering the proposed application. Beam count is only one characteristic and does not establish acceptance for the destination project.
Ask Time: 2026-02-20 Answer Time: 2026-02-21
Can I replace only the receiver on an elevator light curtain?
Only use a replacement supported for the exact transmitter and system generation. The pair may depend on matched electronics or communication. Provide both labels and the controller information before ordering a single edge, and confirm whether the cable or control box must also change.
Ask Time: 2026-02-19 Answer Time: 2026-02-19
Can I reuse an existing elevator light curtain cable with a new sensor set?
Confirm pinout, electrical characteristics, connector coding and moving-cable suitability for the new set. Similar connectors or a shared elevator brand do not establish compatibility. Replace the cable where the new system requires it or where inspection identifies wear or damage.
Ask Time: 2026-02-21 Answer Time: 2026-02-21
What should an elevator light curtain quotation include for a retrofit?
Specify whether transmitter, receiver, controller or power interface, cables and brackets are required. Provide door opening type, mounting space and controller details. Ask for the supported wiring diagram and detection setup so the quotation covers a workable retrofit package.
Ask Time: 2026-02-22 Answer Time: 2026-02-22
Why do elevator doors keep reopening when the entrance is clear?
A dirty or misaligned light curtain, damaged moving cable, interference or another door-control issue can cause reopening. Record device indications and when the fault occurs. A technician should check the complete door-protection system rather than bypass the sensor to keep the doors closing.
Ask Time: 2026-02-19 Answer Time: 2026-02-20