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Version 10.12.2019

 

page 2 

 

 WERAC Elektronik GmbH 

General 

This  instruction  manual  is  a  constituent  part  of  the 

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safety  light  grid.  It  must  be 

available to all personnel concerned with assembly, commissioning, and maintenance during 
its entire life cycle. 
If the instructions in this manual are not followed or only partly followed, accidents could occur. 
Any warranty claims against WERAC Elektronik GmbH become null and void in this case. 
 

Designated use: 
 

The safety systems

 

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 consist of the certified components control unit, transmitter and 

receiver  (see  type  name)  and  may  be  used  only  coherently.  The  connections  between  the 
single components must be carried out with cables of the company WERAC. 
 
The system

 

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 is  a electro-sensitive protective  equipment of the type 4 according to 

IEC 61496-1  which can be used depending on the implementation for the access security of 
danger  zones and  safeguarding  dangerous points on  power-driven  machinery  in  compliance 
with the safety engineering requirements as stated in the standard EN 999/ ISO 13855 and the 
standards  of  the  corresponding  machinery  up  to  safety  category  4  according  to  EN  954-1/ 
ISO 13849-1. 
 

1.1 

Overview of the product features 

• 

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40

 series for applications according to performance level PL e, safety category 4 of 

EN ISO 13849-1 (2008) 

•  resolution 14 mm (finger guard), 30 mm (finger guard) or 40 mm (hand guard) 
•  Width of guarded area with resolution 30 mm or 40 mm = 0 - 6 m or 3 – 10 m,  

with 14 mm resolution = 0 - 6 m 

•  Variable length in 50 mm steps up to 1900 mm – maximum 190 lines 
 

(with resolution 40 mm – 35 mm steps) 

•  Small robust aluminium profile 29 x 19 mm for the emitter and receiver 
•  Attachment optionally via the rail or on the end pieces 
•  Cascadable: 2 light grids can be driven with one control unit 
•  Control  unit WGN  100  with  an  identical  interface  to  the  machine  controller  as  the  control 

units of our multibeam safety light barriers 

•  Can be also used as a multibeam light barrier e.g. as an access safeguard 
•  available as combination light grid with 14/30 mm, 14/40 mm and 30/40 mm resolution 
 
Additional functions of the control unit WGN 110: 
•  Additional inputs for bypassing the light grid 
•  Switchable reduced resolution for bypassing individual lines of the light grid 
•  Fixed blanking for permanent blanking of individual lines of the light grid 

 

1.2 

Approval 

EC type-examination certificate No. HSM 06081: 
DGUV test 
Testing  and  Certification  Body  Lifting  Gears,  Safety  Components  and  Machinery 
Expert Committee for Woodworking and Metalworking  
European notified body Identification number 0393 
Kreuzstrasse 45 
D-40210 Düsseldorf, Germany 
 

1.3 

Manufacturer 

WERAC Elektronik GmbH 

Telefone:   +49 7271/6136 

Am Rodaugraben 2 

Telefax:   +49 7271/8932 

D-76744 Wörth am Rhein 

Email:  

[email protected] 

 

Содержание SAFETY 40

Страница 1: ...Version 10 12 2019 Safety Light Grids and Multibeam Safety Light Barriers Technical Description...

Страница 2: ...L e safety category 4 of EN ISO 13849 1 2008 resolution 14 mm finger guard 30 mm finger guard or 40 mm hand guard Width of guarded area with resolution 30 mm or 40 mm 0 6 m or 3 10 m with 14 mm resolu...

Страница 3: ...n the control unit and visually indicated for the user in the emitter The light grid is in the OFF state after power supply ON or a light barrier interruption This is indicated by the red LED Provided...

Страница 4: ...100 see fig 1 connection A1 A2 normally open contact security output relay A OSSD 1 connection A5 A6 normally open contact security output relay B OSSD 2 connection A3 A4 normally closed contact e g m...

Страница 5: ...unit to emitter or receiver 10 m with UL listed cables 15 m with VDE 0472 804 cables Table 4 4 Diagram of connections The sequential switching has to conform the risk evaluation of the machinery Our...

Страница 6: ...r varistor 5 1 Proposed wiring diagram for control unit WGN100 WGN 110 to Performance Level PL e Category 4 according to EN ISO 13849 1 on power driven machinery PDM with start up test and restart loc...

Страница 7: ...d EN 999 ISO 13855 and the type C standards of the corresponding machinery Operation e g in the following areas of operation is possible Operating machines for the chemicals rubber and plastics indust...

Страница 8: ...m Example A machine with a braking time of 100 ms is equipped with a light grid ESPE with a resolution of 30 mm and a response time of 20 ms C 8 30 14 mm 128 mm S 2 m s 100 ms 20 ms 128 mm 240 mm 128...

Страница 9: ...s of 1 2 or 3 passive components green If the result of the risk evaluation is such that protective devices have to be used with several single beams they must be positioned at a distance obtained usi...

Страница 10: ...label on the emitters and receivers In the case of cascades the response time is dependent on the total number of lines in all light grids The following applies tR cascade tRG tRL total It is not val...

Страница 11: ...of 1 or max 2 deflector mirrors 6 8 Optical bypassing To prevent optical bypassing a minimum distance A of the optical axis to reflective surfaces must be complied with Read off the value in the diagr...

Страница 12: ...vers The procedure for alignment of the emitter and receiver elements is described in the following section a The emitters and receivers are mounted as described under 6 9 Ensure that the longitudinal...

Страница 13: ...rupted off grid ready for activation external restart lock enabled off grid ready for activation Less light reserve in relation to calibrated reference off light grid active and free Less light reserv...

Страница 14: ...light grid LG If an operating mode with bypassing the light grid was selected in the alignment mode the safety function of the light grid can be bypassed with contact pair 1 and 2 in mode 1 and 3 byp...

Страница 15: ...green OSSD ON as soon as the start release is activated and the light grid is free 7 In normal operation in mode 1 the DIP switch is set In mode 2 as AOPD with additional function reduced resolution...

Страница 16: ...be open Both contacts of a contact pair must close within a time slot of one second Only the contact pair which fulfills this requirement activates the overriding The second contact pair now cannot i...

Страница 17: ...t the switches Caution risk of injury When using the function reduced resolution the lines specified for bypassing were no longer evaluated when contact pair 1 is closed The guarded area then is reduc...

Страница 18: ...SichV nature scope and times for regular inspections must be determined by the user for the specific work equipment Furthermore the qualifications and requirements e g technical expert or professional...

Страница 19: ...ion code for standard light grid with 14 30 and 40 mm resolution W G x x x x x x x x x 0 Examples for emitters standard design with 14 mm resolution System length Type designation code Overall length...

Страница 20: ...4 1 ms 208 2 mm results at a 14 mm resolution see Section 6 2 and S230 336 2 mm at a 30 mm resolution The dimension for the height of the section with a 14 mm resolution is calculated as follows mm 26...

Страница 21: ...mm No of lines NL Response time tR in ms 1085 WLS 4108A 080 0 1123 1200 80 15 18 3 1080 WLS 4108A 100 0 1118 1200 100 12 17 8 1070 WLS 4107A 120 0 1108 1200 120 10 17 5 760 WLS 4076A 150 0 798 900 150...

Страница 22: ...listing Depending on the mounting type for rail mounting number of retainer blocks WHK1 number of angle brackets WHW1 or number of hinge brackets WSH1 for end piece mounting number of mounting bracke...

Страница 23: ...00 2 Fig 15 Control unit WGN 110 0 168 DIP S1 115 7 Aufschnappteil f r TS 35 45 132 Empf Sender Start Ausg nge Netz gr n gelb rot RJ 45 RJ 45 Typenschild 10 20 16 168 DIP S1 115 7 Aufschnappteil f r T...

Страница 24: ...AC Elektronik GmbH Fig 16 Retainer block WHK1 Left Fig 17 Angle bracket WHW1 for fixing the retainer block Right Fig 18 Mounting bracket WHW2 for fixing the head pieces Fig 19 Hinge bracket WSH1 10 22...

Страница 25: ...Emitter 30 mm resolution with 2 lenses per 50 mm module The 14 mm resolution has 5 lenses per 50 mm module Resolution 40 mm has one lense per 35 mm module In the case of cascading the connection on th...

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