
Light Barrier (Safety Light Curtain): Working Principle, Types & Machine Guarding Guide
Explore safety light curtains (light barriers) for machine guarding: principles, types...
Latest updates on safety light curtains, LiDAR scanners, proximity switches and industrial safety solutions — curated for engineers and plant managers.

Explore safety light curtains (light barriers) for machine guarding: principles, types...

Exploring the key differences and application scenarios between the DQA light curtain series...

“Call me Sam,” says the 42-year-old crane lead at a 24/7 container terminal...

The maintenance lead kicked the cabinet door shut and watched the line fault counter...

The plant engineer remembers the day the phone rang like it was yesterday...

A plain-English walkthrough of proximity switches for factory engineers.
A practical sizing guide for air (pneumatic) feeders on stamping presses: match feed length to die pitch, match feeder SPM to press speed and the open-die feed window, size clamp/pull force to material thickness and width, set 0.5–0.8 MPa air with proper FRL prep, and know when to step up from the A50/A100/B150 to reinforced models — or to an NC servo feeder.
Symptom → cause → fix for the faults stamping engineers actually chase on air feeders: no-feed/misfeed, feed-length drift, strip slipping, low/unstable air pressure and leaks, gripper-pad and feed-roller wear, press-sync timing loss and jamming — plus a daily/weekly/monthly preventive-maintenance and air-prep checklist.
Regulation (EU) 2024/2847 brings cybersecurity into CE marking, with reporting duties from September 2026 and full obligations from 11 December 2027. How to assess whether a smart, configurable or network-connected ESPE is a 'product with digital elements' — and how this differs from IEC 62443 and the Machinery Regulation.
The international safety standard for driverless industrial trucks and its AGV/AMR personnel-detection requirements: safety laser scanner protective fields, speed-dependent field switching, stopping-distance field length and how IEC 61496-3 type-3 scanners fit — with the contrast to ANSI/RIA R15.08.
The black-channel principle (IEC 61784-3) and a side-by-side of the three safety networks — FSoE (Safety over EtherCAT), PROFIsafe and CIP Safety — for integrating light curtains and safety scanners, plus when hardwired OSSD + safety relay is still the right call.
The 4th edition of ISO 13849-1 (2023) and what changed versus 2015 — software, MTTFD/DC/CCF, fault exclusion and lifecycle. What to revisit in your PL calculations now, and how Type 4 / PL e light curtains feed the SRP/CS, ahead of the EU Machinery Regulation 2027.
Machine safety on aseptic fill-finish lines under the revised EU GMP Annex 1: cleanable IP69K washdown light curtains, guarding around RABS/isolators, and why food-grade washdown sensor design transfers to sterile pharma — balancing contamination control with operator access.
With (EU) 2023/1230 mandatory on 20 January 2027 and no dual-track transition, a dated, month-by-month checklist that maps each compliance step to safety-sensor selection — Type 4 light curtains, safety laser scanners and safety relays.
How presumption of conformity works during the transition to (EU) 2023/1230, which EN ISO/IEC standards an OEM can still rely on, and where IEC 61496, ISO 13855, ISO 13849 and IEC 62061 fit.
The companion standard to ISO 13855 that decides where a light curtain actually goes — detection-zone placement, the four reach types, muting geometry and muting-lamp monitoring.
We’ve put together these videos to help engineers and installers get things running. From wiring up OSSD and EDM to mounting light curtains on a press brake, we cover the real technical stuff. Whether you're troubleshooting faults or looking to swap out Omron, Keyence, or SICK sensors, you'll find the practical steps right here.
A quick walk-through on hooking up dual-channel OSSD outputs. We show you how to handle the EDM feedback loop and connect NPN/PNP signals to your PLC or safety relay.
Real-world demo showing Type 4 light curtains in action on a press brake. See how to integrate safety relays and keep the setup compliant with ISO 13855 standards.
Stuck in a lockout? This video covers why EDM resets fail, how to read the LED fault codes, and tips for getting your beams perfectly aligned when things aren't triggering correctly.
Don't just guess the mounting spot. We show you how to apply ISO 13855 math in the shop to make sure nobody can reach the hazard before the machine hits a full stop.
Switching to DAIDISIKE? This guide helps you match up the height, resolution, and pin-outs so you can replace F3SG, SL-V, or deTec sensors without a headache.
See how to set up safety laser scanners for AGV/AMR paths. We show you how to define warning zones, protective fields, and speed-based zones for robotic areas.
Advanced Sensor Solutions for Industrial Safety and Automation
Discover our commitment to precision engineering and manufacturing.
Real-world application for advanced machine safeguarding.
Enhanced perimeter security and collision prevention solutions.
Optimized for toll stations and weighbridges profiling.
Dimensional measurement and object positioning principles.
Installation guide for hand & finger safeguarding.
Performance under high-pressure washdowns.
Intelligent recognition for high-speed packaging lines.
Advanced background suppression for irregular shapes.
Cost-effective side safeguarding using mirror reflection.