In all cases, a general machine run command will trigger its startup. Light grids and light curtains lca euchner usa, inc. Consolidated editions the iec is now publishing consolidated versions of its publications. An interruption of the detection field causes the safety outputs to open.
The devices comply with the requirements of the relevant type 4 acc. This part of iec 61496 specifies general requirements for the design, construction and testing of electrosensitive protective equipment espe for the safeguarding of machinery. For example, iec 34 1 is now referred to as iec 60034 1. Cenelec members are bound to comply with the cencenelec internal regulations which stipulate the conditions for giving this european standard the status of a national standard without any alteration. Type 4 according to iects 614962 sil 3 silcl 3 according to iec 61508 iec 62061 pl e cat. Iec 61496 1 specifies general requirements for the design, construction and testing of noncontact electrosensitive protective equipment espe designed specifically to detect persons as part of a safety related system.
When a particular clause or subclause of iec 61496 1 is not mentioned in this technical report, that clause or subclause applies as far as is reasonable. Special attention is directed to functional and design requirements that ensure an appropriate safety related performance is achieved. The model ss protects an area by projecting a curtain of infrared light. Iec 61496 1 and 2 electrosensitive protective equipment defines type 2 or type 4 light curtains see chart below. Functional safety standards an overview safety standards exist to ensure the safety of processes and to help prevent accidents from.
Ul 614961 standard for electrosensitive protective. Guide design and assembly according to iec 61439 en 61439. Safety standards an overview for more safety information, guidance and resources visit. The compact system, which works on the transmitterreceiver principle, is available in a variety of product. Changes in the product standard for safety light curtains. The social background to safety of machinery 1 changes in people in some countries, changes in social structure have brought changes in the people that work at production sites. Figure 2 table 1 this means a type 2 safety light curtain e.
This part of iec 61496 specifies additional requirements for the design, construction and testing of electrosensitive protective equipment espe designed specifically to detect persons or parts of persons as part of a safetyrelated system, employing active optoelectronic protective devices responsive to diffuse reflection aopddrs for the sensing function. Our bulletin 440l guardshield poc type 4 safety light curtains are applied in applications where a formal risk assessment has determined that the hazard poses a moderate to high risk of operator injury. The deactivation of the safety outputs results in the switchingoff of the motor power supply by means of the contactor k1 to help to prevent possible hazardous movements or states. Failure mode and effects analysis tested to iec 61496 1 2 requirements. The sr1 srm relays, connected to an iec 61496 12 certified type 4 safety light curtain and equipped with two autocontrolled pnp type solidstate outputs. Optional functions such as contactor monitoring, start and restart interlocking, blanking, and muting may be implemented within the light curtain. This is the instruction manual describing the use of f3sjeb. Eos2 x, eos2, eos2 xm, eos2 xs, eos4, eos4 x, eos4 a, eos4 xm, eos4 xs. This clause of part 1 is replaced by the following. This part is to be used in conjunction with iec 61496 1. Startrestart command according to iec 614961 manual or automatic startrestart selectable on terminal block external device monitoring external relay control feedback input, selectable signalling led indications of inputoutput status, muting sensor inputs, diagnosis muting timeout 30 sec. The international electrotechnical commission iec is a worldwide organization for standardization comprising.
Multilanguage instruction manual complete with ce declaration. Versions without startrestart and override commands for connection with janus j light curtain. K1k2 feedback through the series of the k11 e k21 n. Each member body interested in a subject for which a technical. Mics3aaaz40az1p01 optoelectronic protective devices sick. Prescriptions generales et essais international electrotechnical commission. Safety of machinery electrosensitive protective equipment part 1. Proving sufficient systematic capabilities of an espe in a machine without using the specifications of the harmonised standard en 61496 1 and its extensions iec 61496 2 applicable to singlebeam, multiplebeam photoelectric safety switches and safety light curtains and iec 61496 3 applicable to safety laser scanners is complex. Xusl2 light curtains are type 2 iec 614961, sil 1 iec 61508, silcl1. Iec 608341 teleprotection equipment of power systems. General description of the sb series safety light curtain the sb series safety light curtains are optoelectronic multibeam devices that are used to protect working areas that, in presence of machines, robots and automatic systems in general, can become.
The standard iec 61496 1, safety of machinery electrosensitive protective equipment part 1. July 2005 72 asisafe 72 asinterface light curtains and arrays cat. Changes to iec 61496 and their consequences for using electrosensitive protective devices even if a type 2 espe is assigned to sil 1 or pl c because of systematic capabilities, the failure rate pfhd of this subsystem should be lower than the representative limit values see table 2. Keep up to date with new publication releases and announcements with our free iec just published email newsletter. For such kind of equipment iec 61496 1 2 defines two categories described as type 2 and type 4. Eniec 614961 and eniec 614962 and iec 615081, 2 type 4 espe. Asinterface according to en 50295 iec 620262 siemens ik pi news. This part of iec 60834 applies to teleprotection command systems used to convey command information, generally in conjunction with protection equipment. The design of the ezscreen type 2 has considered all single faults such that a loss of a critical safety function will result in a stop command and a lockout condition. A substantial change in the revised version of iec 614961 concerns the correlation of the pl or sil to the type of a suitable protective device. As from 1 january 1997 all iec publications are issued with a designation in the 60000 series. Iec 61496 1 specifies general requirements for the design, construction and testing of noncontact electrosensitive protective equipment espe designed specifically to detect persons as part of a safety.
It does not cover electrical safety and intrinsic safety aspects. Iec 614396 en 614396 busbar distributorsbusbar distributors iec ts 614397 distributor for camping, market places, marinas and charging stations for electric vehicles distributoror for camping, markett iec tr 614390 planning guide for lowvoltage switchgear assemblies iec 61439 1 en 61439 1. Figure 1 shows the relationships between this standard and relevant safety and fieldbus standards in a machinery environment. Changes to iec 61496 and en 614961, and their consequences for. Power to the rm3 must come from a dedicated power supply that meets the requirements of iec 60204 1 and iec 61496 1, sti part number 42992 or equivalent. Formula for calculation of the required minimum distance. Particular requirements for equipment using vision based protective. Startrestart command according to iec 614961 manual or automatic startrestart selectable on terminal block status display led indications of inputoutput status. Bs en 61496 1 specifies general requirements for the design, construction and testing of noncontact electrosensitive protective equipment espe designed specifically to detect persons as part of a safety related system. Changes to iec 61496 and en 614961, and their consequences. Special attention is directed to requirements which ensure that an appropriate safetyrelated performance is achieved. Ul 614962 standard for electrosensitive protective. The ad sr1ad srm interface, connected to an iec 61496 12 certified type 4 safety light curtain and equipped with two autocontrolled pnp type solidstate outputs, is a type 4 espe electrosensitive protective equipment.
Where this technical report states addition, modification or replacement, the relevant text of iec 61496 1. General requirements and tests, which was published in april201 2, contains two tables in which the type of an espe is unambiguously crossreferenced to an silpl to en 62061en iso 849 1. On powerup regardless of whether the detection zone is occupied. All solid4 safety light curtains with a type sd4re receiver have startrestart interlock and contactor monitoring function that can be selected and deselected, as well as display elements leds and 7segment for convenient startup and diagnostics. The other characteristics indicated above remaining constant, if the. En 602041 manual or automatic start cross monitoring feedback loop to monitoring external contactors 2 enabling paths, 1 signalling path processing of signals from output switching devices ossd of light curtains acc. Datalogic will repair or replace, free of charge, any product found to be defective during the warranty period of 36. Im fall eines typ 2 lichtvorhanges ware in dieser anwendung auch ein typ 4 zulassig, da deren systematische fahigkeiten gro. We datalogic declare under our sole responsibility that these products are conform to the iec 61496 1 2004 and iec 61496 2 2006 standards and successive amendments warranty datalogic warrants its products to be free from defects.
Slcslg 440 compact safety light curtains and grids. Iec 61496 1 specifies general requirements for the design, construction and testing of noncontact electrosensitive protective equipment espe designed specifically to detect persons as part of a. When the system is switched on by the start command and the light curtain. Safety interfaces and relays pl d safety interfaces for emergency stop buttons and safety switches technical features safety relay outputs 2 no 6 a 240 vac 24 vdc each no safety output line is interrupted twice by the two relays response time ms.
Special attention is directed to functional and design requirements that ensure an appropriate safetyrelated. The control of the correct switching of k1 and k2 is performed with a delay of 300ms after the real command. The work of preparing international standards is normally carried out through iso technical committees. Complete document safety of machinery electrosensitive protective equipment part 1. T the rs4asi laser scanner is an active optoelectronic protective device aopd of type 3 in acc. This part of iec 61496 specifies requirements for the design, construction and testing of electrosensitive protective equipment espe for the safeguarding of machinery, employing active optoelectronic protective devices aopds for the sensing function.
It aims at establishing performance requirements and recommended testing methods for command type teleprotection equipment. Relationship between the type of an espe and the silpl. Iec 61496 series pressuresensitive protective devices iso 856 series noise determination of emission. An espe may include optional safetyrelated functions, the requirements for which are given both in annex a of this part and in annex a of iec 61496 1. For example, many experienced workers are retiring while the working population shrinks due to lower birth rates. The object of the iec is to promote international cooperation on all questions concerning standardization in the electrical and electronic fields. There are different techniques for evaluating hazards, none of which can be considered as the best risk assessment method. Following the results of a risk assessment of the machine according to iso 12100. All bsi british standards available online in electronic and print formats. Type 2 and type 4 definitions there are significant differences between xusl2 type 2 and xusl4 type 4 safety light curtains that need to be clarified. It is operated as a safety asi slave by way of the asi safety at work.
The standards describe general principles, but do not specify precisely what to do in each case. This is because a safety chain usually consists of multiple. Iso the international organization for standardization is a worldwide federation of national standards bodies iso member bodies. Ordering information for ordering codes see page 226 technical features main features safe startrestart command according to iec 614961 ad sr1. A single fault anywhere within the model ss will not prevent at least one of the solid state outputs from opening up, allowing a stop command when either a beam is broken or an internal fault occurs. Upon powerup or after the beams have been cleared, the light. International electrotechnical commission iec page count. When the system is switched on by the start command, and the light curtain. Slcslg 440 compact safety light curtains and grids schmersal. Iec 614961 to provide a system inhibiting the light curtain protection, i. The f3sjebtype 4 series are espe type 4 according to en 61496 1. En iec 61496 safety of machinery electrosensitive protective equipment part 1. For the f3sjeb to comply with iec 614961 and ul 508, the dc power supply unit must satisfy all of the following conditions. General requirements and tests establishes a clear relationship between type classes for electrosensitive protective equipment espe and the safety integrity level sil in accordance with iec 62061 performance level pl in accordance with iso 849.
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