Safety light curtains - Saftinex Range
The Safetinex range of safety light curtains offer
high-quality safeguarding solutions for both personnel and machinery. The range of safety light curtains comprises highly sensitive type-4 devices for finger and hand protection, with various lengths and connection options.
Safetinex products have been developed in compliance with the applicable international safety standards and have obtained the required product certification for use in the European Union, the United States of America and all other countries where the applicable IEC standards have been adopted.
Safetinex light curtains feature the highest safety level, i.e. they correspond to safety category 4 according to ISO 13849-1 (former EN 954-1) and type 4 according to IEC 61496-1 and -2. They have successfully obtained the highly rated TÜV certification.
Active optoelectronic protective devices
When looking to build a safety system around a danger zone, the first consideration is whether or not optical protection is suitable at all. For this to be the case, it must be possible for the machine control to be electrically influenced by means of the light curtain’s semiconductor output. Moreover, it must also be possible to instantly terminate or exit the hazardous process in every operating phase. Further, there must be no danger of injury due to heat, radiation or from materials or components ejected by the machine. If such danger exists, then either the optical system is not suitable, or the danger must be otherwise excluded by applying additional safety measures. The selection of a specific safeguarding measure involves an evaluation of the hazard, in order to determine the applicable safety type/category and resolution of the protective device.
Safeguarding function
The safety light curtain resolution must be chosen according to the application and the required safeguarding function. It is defined as the minimum size of an object that can be reliably and safely detected at any position when placed in the protective field. The choice of a specific resolution depends on the part of the body which needs protection (finger, hand or whole body). In all cases, the primary function of the protective device is to stop the machine before the hazardous point is reached and to prevent unintentional machine start-up. This function must comply with the category of the safety-related components of the machine’s control system.
Operating principle
The Safetinex YBB light curtains operate with infrared beams. When the light curtain detects a finger or hand entering the defined hazardous area, the protective equipment immediately stops the machine, or renders it harmless. When operating in manual restart mode, the reset button enabling the operator to restart the machine must be located outside the hazardous area. From there, the operator must have a full view of the hazardous area to make sure that nobody is in danger before restarting the machine. Safetinex safety light curtains are designed to ensure protection of operators working in hazardous areas. A high reliability is achieved by implementing a fail-safe system: Type 4 safety light curtains are thus permanently self-controlled. An internal failure immediately deactivates the output signals, as would an intrusion into the protective field.
Application Areas
The Safetinex YBB range is best suited where finger and hand protection is required close to the hazardous area (point of operation). Depending on the application, a resolution of either 14 mm (finger protection) or 30 mm (hand protection) will be advisable. Thanks to their category/type 4 safety level, these safety light curtains can be used on equipment requiring high protection reliability, such as machine tools, robots, hydraulic presses, automated stock management, weaving looms, etc.
Safety Light Curtains, Saftinex Range, Finger protection - 14 mm
Resolution: 14 mm
Operating range: 0.25 ... 3.5 m
Protective height: 137 ... 1685 mm
Category 4 according to ISO 13849-1 (former EN 954-1)
Type 4 according to IEC 61496-1 and -22-channel selection
Optical synchronization
Permanent autocontrol
Safety Light Curtains, Saftinex Range, Finger protection - 14 mm 
Safety Light Curtains, Saftinex Range, Hand protection - 30 mm
Resolution: 30 mm
Operating range: 0.25 ... 12 m
Protective height: 274 ... 1822 mm
Category 4 according to ISO 13849-1 (former EN 954-1)
Type 4 according to IEC 61496-1 and -22-channel selection
Optical synchronization
Permanent autocontrol
Safety Light Curtains, Saftinex Range, Hand protection - 30 mm
Safety Relay for Saftinex Safety Light Curtains
Compliant with EU Machinery Directive 98/37/EC, 
EN 954-1, IEC/EN 60204-1 For safety light curtains with symmetric (such as Safetinex YBB models) or asymmetric outputs
Safety category 4 according to EN 954-1
Output: 3 N.O. safety contacts / 1 N.C. monitoring contact
Manual or automatic restart
LED indicator for channel 1, 2 and power supply
Gold-plated contacts for switching small loads
22.5 mm wide, DIN-rail-mountable housing
This safety relay, or light curtain controller, is a type 4 device, designed for the protection of people and machines. It can be used in applications together with electro-sensitive protective equipment type 4 (light curtains and light barriers).
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