Light grids and light curtains LCA

Internationally successful – the EUCHNER company EUCHNER GmbH + Co. KG is a world-leading company in the area of industrial safety technology. EUCHNER has been developing and producing high-quality switching systems for mechanical and systems engineering for more than 60 years. The medium-sized family-operated company based in Leinfelden, Germany, employs Headquarters in Leinfelden-Echterdingen around 800 people around the world. 18 subsidiaries and other sales partners in Germany and abroad work for our international success on the market. Quality and innovation – the EUCHNER products A look...

Electro-sensitive protective equipment light grids/light curtains LCA 2 Light grid LCA-2TR-.B-… (2 ... 4 beams) Light curtains LCA-2TR-50-… (50 mm) Light curtains LCA-2TR-40-… (40 mm) Light curtains LCA-2TR-30-… (30 mm) LCA 4 Light grid LCA-4TR-.B-… (2 ... 4 beams) Light curtains LCA-4TR-50-… (50 mm) Light curtains LCA-4TR-40-… (40 mm) Light curtains LCA-4TR-30-… (30 mm) Light curtains LCA-4TR-14-… (14 mm) LCA 4 master/slave Light curtains LCA-4TR-M-30-… (Master, 30 mm) Light curtains LCA-4TR-M-14-… (Master, 14 mm) Light curtains LCA-4TR-S1-30-… (Slave 1, 30 mm) Light curtains LCA-4TR-S1-14-…...

Light grids and light curtains LCA Light grids and light curtains are electro-sensitive protective equipment (ESPE) for securing danger areas on machines and installations. They use several light beams to form an invisible safety light curtain in front of the danger area. When a machine operator interrupts one of these light beams, this will cause the safety outputs to switch off. When installed vertically, light grids and light curtains serve the purpose of access control for operating personnel. When installed horizontally, they secure areas or prevent people from stepping behind them. Electro-sensitive...

Differentiation between LCA devices of type 2 and type 4 On devices of type 2, the safety function is checked by periodic tests. Any fault is detected during the next periodic test, and the safety outputs are switched off. Light grids and light curtains of type 2 correspond to safety category SIL 1 and category 2/PL c can be achieved. The maximum permissible beam angle per light beam is ± 5°. LCA type 2 Category 2/PL c or SIL 1 Light beam ± 5° max. permissible beam angle Devices of type 4 can be used in applications requiring category 4/PL e and SIL  They are characterized by the property of...

Light grids vs. light curtains The basic distinction between light grids and light curtains is the number of light beams used to produce a protective field. Light curtains consist of many light beams, which can detect different body parts depending on the resolution (14 – 50 mm). A distinction is made between finger, hand and body protection. Light grids produce a protective field consisting of 2 – 4 light beams. Owing to the large distance between the individual light beams, light grids are particularly suitable for access control to large work areas and for applications involving a large distance...

Light curtains LCA type 2 LCA 2TR-30/40/50 X BWS Type 2 according to EN IEC 61496-1 X Protective function hand protection/body protection (arms/legs) X Resolution 30 ... 50 mm X Feedback loop integration X Protective field height 160 ... 1810 mm X Degree of protection IP65/IP67 X 2 safety outputs X PL c/category 2 according to EN ISO 13849-1 X SIL 1 according to EN IEC 62061 Light curtain Many light beams, specification as “resolution” Light curtains LCA type 4 LCA 4TR-14/30/40/50 X BWS Type 4 according to EN IEC 61496-1 X Protective function finger protection/hand protection/ body protection...

Light grids LCA type 2 LCA 2TR-2B/3B/4B X BWS Type 2 according to EN IEC 61496-1 X Protective function access control X Beams 2 ... 4 X Feedback loop integration X Protective field height 510 ... 910 mm X Degree of protection IP65/IP67 X 2 safety outputs X PL c/category 2 according to EN ISO 13849-1 X SIL 1 according to EN IEC 62061 Light grid 2 - 4 light beams Light grids LCA type 4 LCA 4TR-2B/3B/4B X BWS Type 4 according to EN IEC 61496-1 X Protective function access control X Beams 2 ... 4 X Extended range X Feedback loop integration X Protective field height 510 ... 910 mm X Degree of protection...

Light curtains LCA type 4 master / slave LCA 4TR-M-14/30 X BWS Type 4 according to EN IEC 61496-1 X Protective function finger protection/hand protection X Resolution 14 ... 30 mm X Can be connected in series X Feedback loop integration X Protective field height 260 ... 1210 mm X Degree of protection IP65/IP67 X 2 safety outputs X PL e/category 4 according to EN ISO 13849-1 X SIL 3 according to EN IEC 62061 Light curtain Many light beams, specification as “resolution” LCA 4TR-S1-14/30 X BWS Type 4 according to EN IEC 61496-1 X Protective function finger protection/hand protection X Resolution...

Function expansion Muting Muting allows safety functions of a light grid or light curtain to be bypassed automatically for a limited time. For example, parts supplied to a danger area can pass through the protective field without triggering the safety function. With the aid of additional sensors, the control system monitors the proper procedure and detects whether people move through the protective field instead of the defined parts, for example. This function is simple to implement with devices from series LCA and the programmable small control system MSC. Cascading (series connection) of light...

Versatile accessories Deflection mirrors and mounting pillars Mounting pillars are available for the installation of the light grids and light curtains; these pillars provide additional protection for the devices. EUCHNER also offers a large number of deflection mirrors in different heights, both pre-assembled in mounting pillars and as separate products, ideal for fastening to profiles. In this way the entire danger area can be secured using a single transmitter/receiver pair. You can find accessories for your device very simply at www.euchner.com. Laser alignment aid and test rods EUCHNER offers...