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SAFETY LIGHT CURTAIN LS2
SUMMARY
INTRODUCTION ........................................................................................................................................... 3
PRINCIPLE OF OPERATION ...................................................................................................................... 4
INSTALLATION ............................................................................................................................................. 5
Positioning ................................................................................................................................................................ 6
Master/Slave Positioning..................................................................................................................................... 7
Calculation of safety distance ............................................................................................................................. 8
Multiple systems ..................................................................................................................................................... 9
Use of deflecting mirrors .................................................................................................................................. 10
Distance from reflective surfaces .................................................................................................................. 11
Mechanical assembly and optical alignment ............................................................................................. 12
Vertical positioning of the light curtain ...................................................................................................... 13
Models with 30, 40mm resolution ............................................................................................................................ 13
Models with 50, 90mm resolution ............................................................................................................................ 13
Multibeam Models ............................................................................................................................................................ 14
Horizontal positioning of the light curtain ................................................................................................. 14
Electrical connections ........................................................................................................................................ 15
Layout of the connectors on MASTER/SLAVE light curtain ........................................................................... 15
Emitter connections ........................................................................................................................................................ 16
Receiver connections ...................................................................................................................................................... 17
Warnings regarding connection cables ................................................................................................................... 18
Automatic operation ....................................................................................................................................................... 19
Manual operation ............................................................................................................................................................. 19
Connection of external contactors K1 and K2 ...................................................................................................... 20
Examples of connection with M.D. safety modules ............................................................................................ 21
OPERATION AND TECHNICAL DATA ................................................................................................. 24
Light signals ........................................................................................................................................................... 24
Emitter light signals ........................................................................................................................................................ 24
Receiver light signals ...................................................................................................................................................... 24
Internal TEST function ....................................................................................................................................... 25
Periodical system TEST ..................................................................................................................................... 25
Status of the outputs ........................................................................................................................................... 25
Technical specifications .................................................................................................................................... 26
Dimensions ............................................................................................................................................................ 29
CHECKS AND MAINTENANCE ............................................................................................................... 31
Functional checks ................................................................................................................................................ 31
Troubleshooting................................................................................................................................................... 32
Accessories/Spares ............................................................................................................................................. 34
COMPLIANCE ............................................................................................................................................. 35
GUARANTEE ............................................................................................................................................... 36
806000220 Rev. B • 11/2022
SAFETY LIGHT CURTAIN LS2
Datasensing S.r.l.
Strada S. Caterina, 235
41122 Modena Italy
Tel. +39 059 420411
Fax +39 059 253973
www.datasensing.com
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Summary of Contents for Datasensing LS2
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Page 1: Table Of Contents
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 SAFETY LIGHT CURTAIN LS2 SUMMARY INTRODUCTION ............................3 PRINCIPLE OF OPERATION ........................4 INSTALLATION ............................. 5 Positioning ................................6 Master/Slave Positioning............................. - Page 2 Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Original Instructions (ref. 2006/42/EC) ABBREVIATIONS AND SYMBOLS USED IN THIS MANUAL FE = Functional earth (earth connection) M/S = Master/Slave System OSSD = Output Signal Switching Device (Light curtain’s solid state safety outputs)
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Page 3: Introduction
SAFETY LIGHT CURTAIN LS2 INTRODUCTION The LS2 light curtain is an optoelectronic safety device belonging to the category of Type 2 electro- sensitive protective equipment for the protection of personnel exposed to risks inherent in the use of dangerous machines or plants, complying with the EN 61496-1,2 and with the requirement of the EU Machinery Directive 2006/42/EC. -
Page 4: Principle Of Operation
• 50mm and 90mm (protected heights from 310mm to 2260mm): PROTECTION OF THE LIMBS. The LS2 is also available in a Multibeam version with a distance between the mirrors of: • 500mm (2 beams), 400mm (3 beams), 300mm (4 beams). -
Page 5: Installation
INSTALLATION Before installing the LS2 safety system, check all the conditions listed below: The level of protection of LS2 (Type 2, SIL2, SILCL2, PLd) must be compatible with the level of danger of the system to be protected. ... -
Page 6: Positioning
Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Positioning The Emitter LS2E and the Receiver LS2R must be positioned so that it is impossible to access the dangerous area from above, from below and from the sides without intercepting one of the beams. -
Page 7: Master/Slave Positioning
SAFETY LIGHT CURTAIN LS2 Master/Slave Positioning In addition to standard models (that can be positioned either horizontally or vertically), LS2 can be purchased in a MASTER/SLAVE configuration. This configuration comprises two (or three) pairs of light curtains in which the two (or three) Emitters and the two (or three) Receivers are connected in series. -
Page 8: Calculation Of Safety Distance
Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Calculation of safety distance The light curtain must be positioned at a distance equal to or greater than the minimum safety distance S so that the dangerous point can be reached only after stopping the dangerous movement of the machine (Figure 5). -
Page 9: Multiple Systems
SAFETY LIGHT CURTAIN LS2 Multiple systems When several LS2 are used, precautions must be taken to prevent optical interference between these: position the elements so that the beam of the Emitter of one system is received only by its respective Receiver. -
Page 10: Use Of Deflecting Mirrors
Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Use of deflecting mirrors For protection or control of areas accessible from several sides, one or more deflecting mirrors can be used in addition to the Emitter and Receiver. -
Page 11: Distance From Reflective Surfaces
41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Distance from reflective surfaces The presence of reflective surfaces close to the light curtain may cause occasional reflections that prevent sensing. Referring to Figure 8, object A is not detected due to surface S that, reflecting the beam, closes the optical path between the Emitter and Receiver. -
Page 12: Mechanical Assembly And Optical Alignment
Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 After installing the system, check for any reflective surface that intercept the beams, first of all at the centre and then close to the Emitter and Receiver. During this procedure, the red led on the Receiver must never switch off. -
Page 13: Vertical Positioning Of The Light Curtain
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Vertical positioning of the light curtain Models with 30, 40mm resolution point of Light curtain These models are suitable for hand detection. -
Page 14: Multibeam Models
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 point of danger Multibeam Models These models are suitable for whole Light grid body detection and must not be used to detect arms or legs. -
Page 15: Electrical Connections
Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Electrical connections WARNINGS Before making electrical connections, make sure that the mains voltage matches the one indicated in the technical data. -
Page 16: Emitter Connections
Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Emitter connections LS2E/**-***B - LS2E/**-*** (with integrated control functions) - - LS2E/**-***M (MASTER models) M12 5-pin primary connectors. PIN COLOUR... -
Page 17: Receiver Connections
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Receiver connections LS2R/**-***B - M12, 5-pin connector. PIN COLOUR NAME TYPE DESCRIPTION OPERATION Brown 24VDC power supply 24VDC... -
Page 18: Warnings Regarding Connection Cables
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 LS2R/**-***FC - LS2R/**-***S (SLAVE/SLAVE2 models) - M12, 5-pin primary connectors. COLOUR NAME DESCRIPTION Brown 24VDC power supply 24VDC... -
Page 19: Configuration And Operating Modes (Master Models / With Integrated Control Functions)
SAFETY LIGHT CURTAIN LS2 Configuration and operating modes (Master Models / With integrated control functions) The operating mode of the LS2 light curtain is set by making suitable connections on the M12 – 8-pin connector of the Receiver (Table 12). CONNECTIONS... -
Page 20: Connection Of External Contactors K1 And K2
Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Connection of external contactors K1 and K2 In both operating modes, it is possible to activate control of the external contactors K1/K2 (series of contacts). If this control is to be used, it is necessary to connect pin 4 of the M12 8-pin connector of the Receiver with the power supply (24VDC) via a set of NC contacts (feedback) of the external contactors. -
Page 21: Examples Of Connection With M.d. Safety Modules
2 and 4 of the Emitter as indicated in Table 4. Figure 21 - LS2: Manual operation with SB400 module For correct operation of the light curtain, connect pins 2 and 4 of the Emitter as indicated in Table 4. - Page 22 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Figure 23 – LS2: Connection examples 806000220 Rev. B • 11/2022...
- Page 23 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Figure 24 - LS2R/**-***: Connection examples 806000220 Rev. B • 11/2022...
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Page 24: Operation And Technical Data
BREAK_K condition (D) YELLOW BLINKING YELLOW BLINKING FAIL condition (Table 18) RED BLINKING Table 15 –LS2 (With integrated control functions) light signals The type of fault is identified by the number of flashes (see Troubleshooting chapter) 806000220 Rev. B • 11/2022... -
Page 25: Internal Test Function
The minimum duration of the TEST command must be at least 4 msec. Status of the outputs On the Receiver of the LS2 there are two PNP static outputs whose status depends on the condition of the protected area. ... -
Page 26: Technical Specifications
*) Devices are not suitable for outdoor use without supplementary measures ➔ If the LS2 light curtain is used in a Master-Slave configuration, use the following formula to calculate the total response time of the device: t tot = [0,1104 * (Nr slave1 + Nr master ) + 1,1044] * 2... - Page 27 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 30 mm Resolution 1053 1203 1353 1503 1653 1803 1953 2103 2253 Models Number of beams Response time...
- Page 28 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 90 mm Resolution Models 1059 1209 1359 1509 1659 1809 1959 2109 2259 Number of beams Response time...
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Page 29: Dimensions
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Dimensions LS2ER/**-***B – LS2ER/**-*** – LS2ER/**-***M - LS2ER/**-***S LS2ER/**-***F (Emitter and Receiver) (Emitter and Receiver) Figure 27 - Emitter and Receiver... - Page 30 Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Figure 29 - Fastening brackets ST206 Figure 30 - Fastening brackets ST207S M8 Inserts Model SL 015 SL 030...
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Page 31: Checks And Maintenance
ON. Figure 33 – Efficiency check The LS2 light curtain does not require any specific maintenance; however, it is good practice to clean the front protective surfaces of the mirrors of the Emitter and Receiver. Clean with a damp cloth;... -
Page 32: Troubleshooting
Shield the beams emitted by the interfering Emitter using opaque protections Check connections. OSSD outputs error 5 consecutive flashes If the fault persists, send to Datasensing S.r.l. for repair. 6/7 consecutive Send the device to Datasensing S.r.l. Internal failure flashes... - Page 33 If it is not possible to trace the cause of the malfunction and eliminate this, stop the machine and contact the Datasensing S.r.l. Technical Service. If the checks suggested are not sufficient to restore the correct operation of the system, please send the device, with all its parts, to the Datasensing S.r.l. laboratories, clearly indicating: •...
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Page 34: Accessories/Spares
Datasensing S.r.l. Strada S. Caterina, 235 41122 Modena Italy Tel. +39 059 420411 Fax +39 059 253973 www.datasensing.com SAFETY LIGHT CURTAIN LS2 Accessories/Spares MODEL ITEM SB400 safety module SB 400 SB400M safety module with muting function SB 400 M Straight M12 5-pin female connector with 5-m cable CD12M/0H-050A3 90°... -
Page 35: Compliance
SAFETY LIGHT CURTAIN LS2 COMPLIANCE European Declaration of Conformity Hereby, Datasensing S.r.l. declares that the full text of the European Declaration of Conformity is available at: www.datasensing.com. Select the link from the downloads section of the product page. UKCA Declaration of Conformity Hereby, Datasensing S.r.l. -
Page 36: Guarantee
SAFETY LIGHT CURTAIN LS2 GUARANTEE All new LS2 systems are guaranteed by Datasensing S.r.l. for a period of 12 (twelve) months under normal working conditions, against defects due to faulty materials and workmanship. During the aforesaid period, Datasensing S.r.l. promises to replace faulty parts free of charge. This guarantee covers both material and labour.
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