GuardShield PAC Type 4 Safety Light Curtain User Manual
Contents
1. Indicator 11 80 3 14 0 43 L 400 15 75 E 400 15 75 min 42 d 1 65 E Receiver L Protective Height an 810 31 89 79 4 40 57 2 95 1 58 52 5 J e E jns 20 1156 45 51 0 79 1192 47 00 A 440L P4A3400YD consists of a pair 440L T4A3400YD transmitter amp 440L R4A3400YD receiver ejz ao Transmitter T L 63 5 2 50 1066 42 00 Beam Location Indicator 11 500 19 69 90 3 14 043 min 42 p 1 65 pi t S SYS a Receiver LLL Protective Height ELS 520 20 47 40 Fr 18 i s Bae 40 uana 1 58 52 c 2 05 NE 3 20 836 33 00 0 79 L 872 34 33 440L P4A2500YD consists of a pair 440L T4A2500YD transmitter amp 440L R4A2500YD receiver Ors Transmitter Ss 746 29 37 Allen Bradley Original instructions Guelin ter 635 2 50 GuardShield PAC Safety Light Curtain Installation Instructions Accessories Corner Mirrors Narrow 8x13 Wide 8x13 50 p reser Tuss oor l on ul 123 gt 584 73 4 2 87 l i i d wa a s Bn E 3 m S la gls a 32. L_PAC __Type 4 L P Pair T Transmitter R Receiver Bulletin Number D for M12 QD and A for 5 pin M12 for ArmorBlock Guard 1 0 D Allen Bradley Original instructions 25 uadha GuardShield PAC Safety Light Curtain Installation Instructions Bill of Material for 3 sided guarding using pedestal floor stands and corner mirrors with a GuardShield 3 beam PAC without cordsets 1 GuardShield three beam PAC pair 440L P4A3400YD 2 Narrow 1050 mm corner mirror 440L AM0751050 Wide 1050 mm corner mirror 440L AM1251050 4 Pedestal floor stand 440L AMSTD Dimensions mm in Beam Location Indicator 11 500 19 69 80 ie 0 43 5 _ 52 2 05 OH Je 440L P4A2500YD a Protective Height oa A Beam Location 11 Indicator 80 3 14 0 43 E 400 15 75 T 400 15 75 M 20 0 79 L J A B C Protective Height mm in Mounting Value mm in Total Length mm in Cat No 820 32 3 0 02 1076 42 4 1112 1 5 43 8 0 06 440L P4A2500YD 520 20 5 0 02 756 29 8 792 1 5 31 2 0 06 440L P4A3400YD es a Allen Bradley Original instructions 26 Gadis GuardShield PAC Safety Light Curtain Installation Instructions Beam Location
3. These polycarbonate weld shields are designed as disposable devices whose purpose is to protect the front window of the GuardShield PAC from damage Dimensions mm in 8 0 0 118 Thick Ne 37 3 1 47 Lo e L gt R24 TI E as ME R122X 10 16 0 4 Allen Bradley CuardWmartet GuardShield PAC Safety Light Curtain Installation Instructions GuardShield PAC Weld Shield GuardShield PAC GuardShield Dimension L Cat No Weld Shield Cat No mm in 440L P4A2500YD 440L AGWS0640 655 3 25 8 440L P4A3400YD 440L AGWS0960 975 4 38 4 440L P4AL2500YD 440L AGWS0800 815 3 32 1 440L P4AL2500YA 440L P4AL3400YD 440L AGWS1120 1135 4 44 7 440L P4AL3400YA GuardShield PAC ArmorBlock Connectivity Signal Top View Receiver 24V OSSD 2 0v OSSD 1 NC me E lel Example of Patchcord Interconnecting Patchcords ArmorBlock I O Connection Cat No Description 889D F5ACDM 0M3 5 pin M12 patchcord 12 inches 889D F5ACDM 1 5 pin M12 patchcord 1 meter 889D F5ACDM 2 5 pin M12 patchcord 2 meters 889D F5ACDM 5 5 pin M12 patchcord 5 meters 889D F5ACDM 10 5 pin M12 patchcord 10 meters The GuardShield PAC pair with ArmorBlock Guard I O Connectivity has a five pin M12 quick disconnect connector on the receiver wired to connect to the ArmorBlock fi
4. al i j E 8 5 IL TT A 4 Light Curtain Cat No Mirror Cat No 440L P4A3400YD Narrow 440L AM0751050 440L P4AL3400YD Wide 440L AM1251050 440L P4AL3400YA 440L P4A2500YD Narrow 440L AM0750750 440L P4AL2500YD Wide 440L AM1250750 440L P4AL2500YA GuardShield 2 and 3 beam light curtain PAC mounting and mirror columns Stand 440L AMSTD 12 7 0 5 Dia 4X 1 A Note Two GuardShield mounting brackets NEL are supplied with each 440L AMSTD floor stand M10 x 1 5 mm Class 6g thru 4 pl 381 0 15 Figure 5 Pedestal floor stand Allen Bradley 28 Original instructions Guard marte GuardShield Washdown Enclosures Enclosure Kit 440L AGST960 440L P4A3400YD 440L P4A2500YD 440L AGST640 Note Note The GuardShield washdown enclosures are designed for use with standard GuardShield PAC light curtains only Laser Alignment Tool used on standard GuardShield Requires 440L AF6109 bracket to mount to front of GuardShield PAC 66 8 2 63 1905 0 75 mc 1 Ag OY 12 9048 x EIE 62 48 4 T 2 46 Laser Alignment Tool LAT 440L ALAT 4 29 0 169 hole dia 81 x 2 66 0 105 countersink 17 78 0 7 il 4 D PET P 71 35 56 14 M 44 45 1 75 GuardShield PAC LAT Bracket 440L AF6109 Weld Shields The GuardShield PAC weld shields are sold as pairs
5. immediately around the machine may also experience high levels of shock and vibration therefore it may be necessary to use the shock mount kits when mounting the light curtains to the mounting stands Allen Bradley Guard tmarter GuardShield PAC Safety Light Curtain Installation Instructions Figure 8 Pedestal floor stand Electrical Installation Connections Power Supply The external voltage supply 24V DC must meet the requirements of IEC 61496 1 In addition the following requirements have to be fulfilled Ashort term power failure of 20 ms must be bridged by the power supply The power supply has double insulation between the primary and the secondary side The power supply is protected against overload The power supply corresponds to the guidelines of the EWG industrial environment The power supply corresponds to the Low Voltage Directives The grounded conductor of the power supply device must be connected to a grounded conductor PE The maximum deviation of the voltage levels is 24V DC 2096 Original instructions 13 GuardShield PAC Safety Light Curtain Installation Instructions Double Insulation Connections mm in Basic Insulation see Output pink note Basic Insulation an and grey ge a Guard OV blue 15 ie i l
6. GuardShield Light Curtain Connected to MSR22LM with Four Sensor Muting 24V DC o 7 2 f 1 3 Receiver Transmitter Ki 5 6 o Muting maing Muting Muting START T Sensor Sensor Sensor Sensor ce 3 4 1 2 o l O O O i O O O O O O O O O 0 O O Al XA S43 S44 S12 S14 S21 S22 S24 S23 S81 32 S34 S33 S4 S42 MSR22LM 440R P23071 l NOTES L 1 Muting sensors are N C PNP type _ A2 M M 48 18 29 8 32 4 14 58 2 Wire reset switch to 43 amp 44 when Oo oO O O O O o 000 Oo external monitoring is not required Terminal X44 is not used 3 Muting lamp must meet the following oii current specs Muting Minimum current 25 mA Lamp Maximum current 100 mA K1 K2 Bulletin 1005 Restart Safety Contactors Required o 7005 Safety Relays Lamp DC Common O O GuardShield Light Curtain Connected to MSR42 MSR45E with Two Sensor Muting 24V DC ov DC Note Itis necessary to use the optical interface 445L AF6150 to program the MSR42 Allen Bradley Original instructions 17 Guard marte GuardShield PAC Safety Light Curtain Installation Instructions GuardShield Light Curtain Connected to MSR42 with Two Sensor Muting 24V DC ov DC Note Itis necessary to use the optical interface 445L AF6150 to program the MSR42 AB Allen Bradley Ori
7. J 2004 S 2011 K 2005 T 2010 L 2006 U 2013 M 2007 V 2014 N 2008 W 2015 P 2009 Y 2016 R 2010 1 2017 Figure 4 Explanation of data code Original instructions 23 Technical Specifications GuardShield PAC Safety Light Curtain Installation Instructions Light Beams 3 400 mm spacing 440L P4A3400YD 2 500 mm spacing 440L P4A2500YD Protective Field 820 mm 31 8 in 3 beam 520 mm 20 4 in 2 beam Range 16 m 52 5 ft Response Time OSSD ON to OFF Reaction times 20 ms uncoded 30 ms coded Power Supply 24V DC 20 Power supply must meet the requirements of IEC 60204 1 and IEC 61496 1 Power Consumption 400 mA max unloaded IR Transmitter Infrared LED wave length 870 nm Aperture Angle Within 2 5 for transmitter and receiver Operating Condition IR transmitter ON Functions Guard Only On Off operation with clear obstructed detection area Start Interlock Interlock at start up Reset by actuation of momentary N 0 pushbutton switch or interruption restoration of light curtain Restart Interlock Interlock at interruption of sensing field Reset by actuation of momentary N 0 pushbutton switch Relay Monitoring Monitoring a switch contact of the installation Coding May be necessary for multiplex alignment Test Function Triggering of system test via external switch Inputs Transmitter Minimum duration 100 ms Machine Test Signal Voltage level for Logic 0 0 5VDC Volta
8. Activation of this functionality is accomplished by setting the EDM dipswitch no three to the OFF position and then performing the Teach function It is also necessary to connect the GuardShield receiver s EDM yellow wire to a N C output from the FSD EDM is not available in GuardShield PAC light curtains with ArmorBlock Guard I O connectivity System Testing The GuardShield PAC performs a complete system self test at power up and switches to the ON state if the system is properly aligned and the protective field is unobstructed and the start restart interlock modes of operation are deactivated External Test Machine Test Signal A test cycle of the system can be triggered by an external test signal to the GuardShield PAC s transmitter Supplying or removing a signal 24V DC via a N C or N O switch at the test input deactivates the transmitter for the duration of the test signal simulating an interruption of the protective sensing field Allen Bradley Guard marte The test input must be configured via a dip switch located in the GuardShield PAC transmitter Beam Coding If several safety light curtains are operating in close proximity to one another it is possible that the transmitter s infrared light from one GuardShield PAC system is seen by another GuardShield PAC system s receiver This would cause a nuisance stop To prevent this optical interference the GuardShield PAC has the ability to have t
9. Identify a hazard Avoid a hazard Recognize the consequences IMPORTANT Identifies information that is especially important for successful application and understanding of the product Potentially hazardous situation which if not ATTENTION prevented might lead to serious or deadly The GuardShield PAC must not be used with ATTENTION machines that cannot be stopped electrically in an emergency The safety distance between the GuardShield and a dangerous machine movement has to be maintained at all times Additional mechanical protective devices have to be installed in a way that hazardous machine elements cannot be reached without passing through the protective field The GuardShield has to be installed in a way that operators can only operate within the sensing area Improper installation can result in serious injury Never connect the outputs to 24V DC If the outputs are connected to 24V DC they are in ON state and cannot stop hazardous spots at the machine application Never expose the GuardShield to flammable or explosive gases Regular safety inspections are imperative see maintenance Do not repair or modify the GuardShield The GuardShield safety light curtain is not field repairable and can only be repaired at the factory Removal of either of the GuardShield endcaps will void the warranty terms of this product Specialist Personnel The GuardShield PAC safety light curtain must be installed commission
10. PAC light curtains are sold in pairs To select a transmitter or receiver replace the P in the cat no with a T for the transmitter and an R for the receiver GuardShield PAC with Integrated Laser Alignment Protective Height mm in 520 20 4 820 32 2 440L P4AL2500YD 440L P4AL3400YD Note GuardShield PAC with integrated laser alignment are sold in pairs To select a transmitter or receiver replace the P in the cat no with a T for the transmitter and an R for the receiver GuardShield PAC with Integrated Laser Alignment and I O Connectivity Protective Height mm in 520 20 4 820 32 2 440L P4AL2500YA 440L P4AL3400YA Note GuardShield PACs with ArmorBlock Guard I O Connectivity are sold in pairs The pair consists of a standard GuardShield PAC with integrated laser alignment transmitter with 4 pin M12 quick disconnect 440L T4AXXXXYD To select a receiver replace the P in the cat no with an R for the receiver Cat No Explanation M0 P 4 A X XX Y D E Connector Option Micro QD Environmental Rating IP65 Beam spacing 400mm or 500mm Number of beams 2 or 3 L_PAC L Category Type 4 L P Pair T Transmitter R Receiver Bulletin Number 40L P 4 A L X XXX Y A L Connector Option 9 Environmental Rating IP65 Beam spacing 400 or 500 mm Number of beams 2 or 3 L Integrated laser alignment system
11. for the machinery should be inspected regularly to ensure proper operation The protected machinery must have a consistent reliable and repeatable stopping time Failure to read and follow these instructions can lead to misapplication or misuse of the GuardShield safety light curtains resulting in injury and damage to equipment AB Allen Bradley Original instructions 1 Guard marte GuardShield PAC Safety Light Curtain Installation Instructions Table of Contents GuardShield PAC Safety Light Curtain 3 Introduction scle serere rro ret tr ho Ere 3 Safety Precautions cccececceecccceeccees 4 Principles of Safe Use and Symbols Used 4 Specialist Personnel e nnne 4 Range of Uses of the Device 0 cece cece eee e ees 4 Proper Use v0 ices cosets ook rer e ase eR ame bale 4 General Protective Notes and Protective Measures 4 Product Description eeeeeeee eere 5 Special Features 0 cece cece eee ence nee 5 Light Curtain Principle of Operation 00 e eee 5 Examples of Range of Use cece cece e eee ee eee ees 6 Safety Functions eee e re ere kr xn da tie is sa erae 6 Installation and Mounting 11 Response Time cose deine be eer Ee EXC Rex eee eyes 9 Determining the Safety Distance 9 US Safety Distance Formula cee ee eee e eee eee 9 OSH
12. laser is switched from a low output power state to a high output power state and back again by means of control circuitry which detects reflected laser light from a temporary blockage of the emitted laser light This is most commonly accomplished by a person s finger placed over the laser overlay window There is also an automatic shutdown feature that switches the laser diode from the high power state to the low power state if there is no finger or other interruption detected for a period of five minutes During the high output mode of operation the laser is pulsed at a rate of approximately 2 Hz in order to facilitate finger detection in high ambient light conditions ATTENTION A Safety Precautions Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure Principles for Safe Use and Symbols Used The following instructions are preventive warnings to ensure the safe and proper operation of the GuardShield PAC These instructions are an essential part of the safety precautions and therefore have to be observed at any time Throughout this manual we use the labels ATTENTION and IMPORTANT to alert you to the following ZEE Failure to observe may result in dangerous operation ATTENTION Identifies information about practices of circumstances that can lead to personal injury or death property damage or economic loss ATTENTION helps you
13. light in the center of the top and bottom targets will position the GuardShield PAC pair for optimal alignment Original instructions 5 GuardShield PAC Safety Light Curtain Installation Instructions Examples of Range of Use The GuardShield PAC safety light curtain operates as a proper protective device only if the following conditions are met Thecontrol of the machine must be electrical Thecontrolled machine must be able to be stopped any where in the machines stroke or cycle Thetransmitter and receiver must be mounted such that access to the hazard is only through the light curtain s protective field Therestart button must be located outside the hazardous area such that it cannot be operated by a person working inside the hazardous area The statutory and local rules and regulations must be observed when installing and using the device Safety Functions The GuardShield PAC safety light curtain offers a variety of functions which are integral to the system Operating modes functions and features of the GuardShield PAC system are activated through dip switch settings IMPORTANT The protective system must be tested for proper operation after each and every change to the configuration Guard Only When in the guard only mode of operation the light curtain operates as an on off device meaning the OSSD outputs switch off on according to an obstruction or clearing of the detection field The GuardShi
14. receiver Exchange transmitter 8 External fault Check connections of OSSD outputs for short circuit against 24V DC and GND cable connected devices Exchange receiver 9 External fault MPCE error Check connection Relay monitoring The function Relay monitoring is Check connected relay for closed activated and after clearing the OSSD contact if OSSD ON input Relay the input Relay monitoring does not monitoring must have GND level if recognize a change of state OSSD OFF input Relay monitoring must have 24V Switch on only after POWER OFF ON 10 Configuration mode Receiver Cover for DIP switch setting at the receiver is open 11 Configuration mode Transmitter Cover for DIP switch setting at transmitter is open Original instructions Allen Bradley Guard marte GuardShield PAC Safety Light Curtain Installation Instructions System Status Indicators Receiver Transmitter OSSDs OFF ce os Emitting OCS OSSDs ON CX6 OSE ji OD Poweron Interlock IIRO Receiver LEDs Transmitter LEDs Power Alignment Interlock On Emitting Condition No Yellow amber Yellow amber Yellow 1 OFF ON 2 OFF ON 3 OFF ON 4 OFF ON 5 OFF OFF 6 OFF ON 7 OFF ON 8 OFF ON 9 OFF ON 10 DATA TRANS ON OFF DATA TRANS 6 through 11 Fault conditions Data transmission factory configuration interface not available for use outside factory Flash rate is
15. same time in the GuardShield PAC Configuring Restart Interlock behaves the same as Start Interlock at power up i e a reset of the system is required at power up Restart interlock should always be configured for the GuardShield PAC light curtains The reset switch should be located outside of the work cell and positioned so that a clear view of the work cell is possible Restart interlock is not available in GuardShield PAC light curtains with ArmorBlock Guard I O connectivity this functionality must be configured and through the safety PLC External Device Monitoring EDM or Machine Primary Control Element MPCE Monitoring The External Device monitoring function EDM is an input signal to the GuardShield receiver from the Final Switching Device FSD usually relay contactors which control the hazardous motion of equipment or machinery The EDM circuit is required to see a change of state of the FSD within 300ms of the restoration of the GuardShield s sensing field after its interruption Detection of an unsafe condition such as a welded contact causes the GuardShield receiver to go to a lockout condition OSSDs OFF The activation and use of this GuardShield functionality usually allows the GuardShield s OSSDs to be connected directly to a machine s FSD and attain a Category 4 safety circuit It is necessary to have the EDM circuit connected to two separate FSDs which are wired in series to attain the Category 4 rating
16. the point of operation hazard from rest NOTE ANSI B11 19 1990 E4 2 3 3 5 states The value of the hand speed constant K has been determined by various studies and although these studies indicate speeds of 63 inches second to over 100 in second they are not conclusive determinations The employer should consider all factors including the physical ability of the operator when determining the value of K to be used Ts Stop time of the machine tool measured at the final control element Tc Response time of the control system Note T and T are usually measured by a stop time measuring device Tr Response time of the presence sensing device safety light curtain and its interface if any This value is generally stated by the device manufacturer or it can be measured by the user Additional time allowed for the brake monitor to compensate for variations in normal stopping time Tom Dpf Depth penetration factor It is an added distance to allow for how far into the protective field an object such as a finger or hand can travel before being detected Dor is related to the safety light curtain s object sensitivity Object sensitivity is the smallest diameter object which will always be detected anywhere in the sensing field Example Reach Over In this example the value of K is the hand speed constant of 63 in per second the Ts machine stop time is 250 ms 0 250 sec the 2096 brake wear factor is 0 05 sec and the Gu
17. 1 2000 Information technology equipment Radio disturbance characteristics A2 2003 Limits and methods of measurement EN 61496 1 2004 A1 2008 Safety of machinery Electro sensitive protective equipment Part 1 General requirements and tests CLC TS 61496 2 2006 Safety of machinery Electro sensitive protective equipment Part 2 IEC 61496 2 2006 Particular requirements for equipment using active opto electronic protective devices AOPDs EN 61508 2001 Functional safety of electrical electronic programmable electronic safety related systems EN 62061 2005 Safety of machinery Functional safety of safety related electrical electronic and programmable control systems EN ISO 13849 1 2008 AC 2009 Safety of machinery Safety related parts of control systems Part 1 General principles for design The authorised representative is authorized to compile the Technical File Conformance of a type sample belonging to the above mentioned product family with the regulations from the EC Machinery Directive has been certified by TUV NORD CERT GmbH amp Co EC Type Examination Certificate No KG 44 205 10 383326 000 Langemarckstr 20 D 45141 Essen Germany ID No 0044 Manufacturer Authorised Representative in the Community Li Signature Signature Name Daniel L Nachtigall Name Viktor Schiffer Position Technical Leader Certification Engineering Position Engineering Manager Date 17 Jun 2010 Date 2
18. 1 Jun 2010 Place Milwaukee WI USA Place Haan Germany Document Control Number SEN 0339 H EN Original 1 2 E E Allen Bradley Original instructions 31 Guard tmarter GuardShield PAC Safety Light Curtain Installation Instructions Catalogue number Rockwell Automation Description 440L 4 y bo GuardShield Type4 light curtains per Nomenclature 1 fno series number is given then all series are covered MODEL NOMENCLATURE 440L P 4 J L 1600 Y 1 2 3 4 5 6 7 8 Designates Product Type 440L GuardShield safety light curtains Light Curtain Type P Transmitter receiver pair C Cascaded sensor pair R Receiver F Cascaded receiver T Transmitter G Cascaded transmitter S Remote Teach System Optoelectronic Safety Type 4 Type 4 Beam Resolution J 14mm K 30mm A Perimeter Access Control Electronic Unit Type Blank Standard L Laser Protection Height or Number of Beams and Beam Gap 0160 160mm height 1120 1120mm height 0320 320mm height 1280 1280mm height 0480 480mm height 1440 1440mm height 0640 640mm height 1600 1600mm height 0800 800mm height 2500 Two beams 500mm gap 0960 960mm height 3400 Three beams 400mm gap Environmental Rating Y IP65 Connection Options A 5 pin MI2 quick disconnect D Micro quick disconnect conn
19. 30 m 100 ft Maximum resistance 5 ohms Ambient Temperature During operation 10 55 C 14 131 F For storage 25 75 C 13 167 F Humidity of the Air Up to 95 without condensation between 20 55 C 68 131 F Enclosure Rating IP65 Vibration Resistance Per IEC 61496 1 IEC 60068 2 6 Frequency 10 55 Hz Amplitude 0 35 mm Shock Per IEC 61496 1 IEC 60068 2 29 Acceleration 10 g Duration 16 ms Material Housing Aluminum Cover PMMA acrylic Dimensions cross section Approx 40 mm x 50 mm 1 57 in x 1 96 in Accessories Included Mounting brackets operating instructions security tool plastic tool for setting dipswitch and teach function Approvals IEC 61496 Parts 1and 2 UL 61496 Parts 1 and 2 UL 1998 Safety Classification Type 4 per EN IEC 61496 category 4 EN ISO 13849 SIL 3 IEC 61508 SIL CL3 EN 62061 PLe EN ISO 13849 PFHd mean probability of a dangerous failure hr Standalone sys 9 51 x 10 Cascading sys host guest 1 95 x 105 Cascading sys host quest quest 2 75 x 10 Ty mission time 20 years EN ISO 13849 Transmitter Wave Length 870 nm Allen Bradley Guard marte Original instructions 24 GuardShield PAC Safety Light Curtain Installation Instructions GuardShield PAC standard 500 2 Protective Height mm in 520 20 4 820 32 2 440L P4A2500YD 440L P4A3400YD Note GuardShield
20. 6 4 pin DC Micro Straight Female Cordset 30 98 4 30 Original instructions Allen Bradley Guard marte GuardShield PAC Safety Light Curtain Installation Instructions Rockwell Automation EC Declaration of Conformity m The undersigned representing the manufacturer and the authorised representative established within the Community Rockwell Automation Inc Rockwell Automation BV 2 Executive Drive Rivium Ie Straat 23 Chelmsford MA 01824 2209 LE Capelle aan den IJssel USA Netherlands Herewith declare that the Products GuyuardShield Type 4 Safety Light Curtains Product identification brand and Allen Bradley Guardmaster 440L Series catalogue number part number reference the attached list of catalogue numbers Product Safety Function 440L Series Type 4 safety light curtains are active optoelectronic protection devices AOPDs with resolutions of 14mm and 30mm or multiple beams with various beam spacings These safety light curtains are self checking and cascadable and are suitable for applications up to Safety Category 4 EN ISO 13849 1 and SIL3 EN 61506 are in conformity with the essential requirements of the following EC Directive s when installed in accordance with the installation instructions contained in the product documentation 2004 108 EC EMC Directive 2006 42 EC Machinery Directive and that the standards and or technical specifications referenced below have been applied EN 55022 1998 A
21. 855 and EN ISO 13857 gt First calculate S using the following formula S 1600 x Ts Tr C Where Ts stopping run down time of the machine response time of the protective device s Tr response time of the GuardShield PAC S safety distance mm C safety supplement S 1600 x 0 250 0 020 850 mm S 1600 x 0 270 850 mm S 432 850 mm S 1282 mm Minimum Distance from Reflecting Surfaces The infrared light from the sender may be reflected off of shiny surfaces and be received by the system s receiver If this condition Occurs it can result in an object not being detected when it enters the GuardShield PAC s sensing field All reflecting surfaces and objects e g material bins must therefore be located at a minimum distance a from the protective field of the system The minimum distance a depends on the distance D between sender and receiver a H Distance D meters Figure 8 Minimum distance from reflecting surfaces How to Determine the Minimum Distance from the Reflecting Surfaces gt Determine the distance D m sender receiver gt Read the minimum distance a mm from the graph Figure 9 Graph minimum distance from reflecting surfaces Allen Bradley Guard e morte GuardShield PAC Safety Light Curtain Installation Instructions The effective aperture angle for the GuardShield PAC system is 2 5 at a mounting distance
22. A Safety Distance Calculation Formula 9 The ANSI Safety Distance Formula sssssss 10 European Safety Distance Formula ssuuuuu 10 Multiple GuardShield PACs lle 12 Mounting Brackets 0 cece eee e cece eee eene 12 Electrical Installation eeeeeeeee 13 ConnectiOris iius eeu E Hoes ere EXE T KER ER E ES 13 Wiring Diagram eekcscioe ete E E C ERO FUerUerr s 15 Checklist erred new EH ERR ERE ER E S ERES 22 System Status Indicators 0 cece cece eee eee eees 21 System Configuration Leere 19 Teach Function er rh pe diene EX eH EE RES ERU 20 Troubleshooting Guide 6 cece eee n cence eens 20 This manual covers the operation and installation of the Standard GuardShield PAC light curtain GuardShield PAC with Integrated Laser Alignment system GuardShield PAC with Integrated Laser Alignment and ArmorBlock Guard I O connectivity 2 Original instructions Safety Instructions Maintenance 22 Daily Inspection lesse 22 Six month Inspection lesse eene 23 Cleaning vence e RUE REFER E DR En UEM 23 Technical Specifications 0 c cece cece e eee e ees 24 Model Overview esee 25 DIMENSIONS ucc eres em exer RS dete ER SERES 26 Accessories iussisse ee vens ser see Er ee vas Vi a 28 Generally recognized technical regulations and quality assurance system IS
23. GuardShield PAC Type 4 Perimeter Access Control Safety Light Curtain User Manual amp amp 5 Allen Bradley Rockwell Automation Allen Bradley Rockwell Software Important User Information Because of the variety of uses for the products described in this publication those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements including any applicable laws regulations codes and standards The illustrations charts sample programs and layout examples shown in the guide are intended solely for purposes of example Since there are many variables and requirements associated with any particular installation Rockwell Automation does not assume responsibility or liability to include intellectual property liability for actual use based upon the examples shown in this publication Rockwell Automation publication SGI 1 1 Safety Guidelines for the Application Installation and Maintenance of Solid State Control available from your local Rockwell Automation sales office describes some important differences between solid state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication Reproduction of the contents of this copyrighted pu
24. Monitoring disable Disabled 4 Not used 3 Not used 6 Not used 7 Set Beam Coding Disabled 8 Not used Default Setting OFF Set Beam Coding Description Disabled Machine Test Signal OFF OFF Signal High active No connection or connect normally open ON Signal Low active Connect N C Operation Guard Only ON OFF Operation OFF Start Interlock Push Button Reset OFF Restart Interlock Interlock at start up Reset by actuation of pushbutton switch Interlock at interruption of sensing area Reset by actuation of pushbutton switch ON Start Interlock Interlock at start up Reset by Interruption restoration of sensing area for lt 1 sec Maite Every modification at the DIP switches must be stored in the memory of the device through the Teach function Simply changing the position of a dip switch will not change the GuardShield It is necessary to first change the dip switch position and then perform the teach function If the changes have been enabled in the GuardShield the amber LED will flash three times as a visual confirmation that the change has been accepted A GuardShield PAC light curtains with ArmorBlock Guard I O connectivity are configured from the factory as standard GuardShield PAC light curtains However the only configurable functionality is beam coding All other configurable functions have been disabled Original instructions 19 Guard
25. O 9000 are carefully applied during the development and production of Allen Bradley Guardmaster products This technical description must be followed when installing and commissioning the GuardShield PAC Inspection and commissioning must be carried out by a qualified person Rockwell Automation reserves the right to make changes or revisions to the material contained in this publication and cannot be held liable for incidental or consequential damages resulting from the furnishing performance or use of this material Allen Bradley Guard marte GuardShield PAC Safety Light Curtain Introduction The GuardShield PAC safety light curtain is a multiple beam presence sensing device designed for perimeter or access detection around hazardous machinery or equipment The GuardShield PAC is a Type 4 AOPD per IEC 61496 It is a self contained optically synchronized two box transmitter and receiver safety light curtain with dip switch selectable operating modes The GuardShield PAC safety light curtain consists of a non matched pair of optic units i e transmitter and receiver The transmitter and receiver operate on 24V DC The maximum distance between transmitter and receiver is referred to as the protective field width or range The protective field height is the distance between the first and last beam in the device The transmitter emits sequential pulses of infrared light which are received and processed by the G
26. Shield PAC Safety Light Curtain Installation Instructions Teach Function Procedure Step 1 Open cover of the end cap LED blinks Receiver is red LED Transmitter is amber LED Step 2 Select the desired switch setting Step 3 Press and hold the Teach button The yellow LED flashes at 10 Hz 10x per second p d C E Step 4 The yellow LED will stop blinking while the button is depressed After the yellow stops flashing release the teach button within 2 seconds After 3 flashes of the yellow LED the function is activated Step 5 Close and secure the cover IMPORTANT 20 The doors on the transmitter and receiver must be closed for the GuardShield PAC to operate If the GuardShield PAC teach procedure is not properly completed the unit will remain in the previous operating mode Once the teach function is completed and the door secured verify that the operating mode has changed to the intended mode Troubleshooting Guide The light curtain carries out an internal self test after startup If an error occurs an appropriate signal combination is sent through the LEDs to the transmitter and receiver Condition No Error Description Action 6 Internal fault receiver Check configuration of transmitter and receiver e Replace receiver 7 Internal fault transmitter Check configuration of transmitter and receiver Check protective field transmitter receiver Check connections transmitter
27. Shield 24V brown 1 IQ K s etc 0 57 EN E Power Supply Unita Cables Connectors Bat 4 aa je ee elec Hazardous voltage level The GuardShield PAC transmitter connector is a four pin DC micro connector offered in cable lengths from 2 to 30 meters The Reinforced _ 2 SS Basic Insulation GuardShield PAC receiver connector is an 8 pin DC micro i insulation or EE A pope mmt connector offered in cable lengths of 2 to 30 meters ouble insulation Hazardous Hazardous voltage level voltage level GuardShield PAC Standard and GuardShield PAC with ArmorBlock Guard 1 0 Connectivity EDM Connection Transmitter Connection Signal Face View of D I Female DC Micro Transmitter Transmitter Receiver 24V DC No Connection o 0V DC Machine Test Signal Note The transmitter is not expected to be connected to the ArmorBlock Guard I O module 24V k1 k2 k1 Contactor Standard GuardShield PAC Receiver Connector Contacts Contacts k2 Coils i Receiver Connection Signal Figure 9 Connecting the contact elements to the EDM Face View of Female DC Micro Receiver Not available for GuardShield PAC with White Auxiliary Output IMPORTANT ae ArmorBlock Guard I O connectivity Brown 24V DC He Green Ground Icy gi D Yellow EDM Transmitter Receiver Grey OSSD 1 Pink OSSD 2 Blue ov DC IS Red Start Restart GuardShield PAC Receiver Connector for ArmorBlock Guard 1 0 Connectivity Signal Top View Receiver 24V Reset re
28. a j r Figure 5 Multiple GuardShield PAC alignment options Mounting Brackets The GuardShield PAC is mounted using right angle brackets attached to the endcaps of both transmitter and receiver Each GuardShield PAC is supplied with standard right angle mounting brackets and self threading screws It may be necessary to use additional brackets to mount the GuardShield PAC at a proper safety distance from the machinery hazard Allen Bradley Guard marte 20 52 2 04 4 1 65 iho 0 74 145 0 57 Figure 6 Mounting brackets Shock Isolation Kits Rockwell Automation offers a shock and vibration isolation kit 440L AF6120 for attenuating excessive shock and vibration in vertical applications of the GuardShield PAC safety light curtain This kit is most effective in extending the operational life of the GuardShield PAC safety light curtains in excessive shock and vibration applications particularly in applications where shock levels can exceed 50 g Vertical Application Horizontal 4 amp Application 9 Figure 7 Shock isolation kit Rockwell Automation also offers pedestal floor stands for mounting the GuardShield light curtains when the shock and vibration levels of the equipment are excessively high These mounting stands isolate the GuardShield light curtains from receiving the shock through the equipment however the area
29. approximately 2 Hz 2 times per second Condition No Description Guard only mode light curtain unobstructed aligned not in interlock Guard only mode light curtain interrupted aligned not in interlock Guard only mode misaligned not in interlock In start or restart interlock aligned Transmitter test input active pin 4 Internal fault receiver Internal fault transmitter External fault OSSD short to ground V or cross connection External fault MPCE EDM error wo cof s DA HG gt Ww mm Configuration mode receiver access door open Configuration mode transmitter access door open Note Note For fault conditions 6 through 11 see Troubleshooting guide on page 20 ATTENTION Assure that all power tothe machine and safety system is disconnected during electrical installation D Allen Bradley Original instructions 21 uadha GuardShield PAC Safety Light Curtain Installation Instructions Prior to powering up the GuardShield PAC system the responsible person should review the following Checklist IMPORTANT Checklist Before the initiation of the GuardShield PAC the responsible person should work through the following checklist Cable check prior to initiation 1 o The power supply is solely connected to the GuardShield PAC 2 o The power supply is a 24V DC device that must comply to all applicable standards of the Machinery Di
30. ardShield PAC response time is 20 ms 0 020 sec The Dpf is 48 in for reach over applications 10 Original instructions Ds 63 in sec X 0 250 0 050 0 02 48 in Ds 20 16 in 48 in Ds 68 16 in from hazardous motion The GuardShield three beam PAC should be mounted at least 68 2 in from the closest reachable hazard point of the protected machinery or equipment European Safety Distance Formula A safety distance must be maintained between the light curtain and the point of danger This safety distance ensures that the point of danger can only be reached after the dangerous state of the machine has been completely removed The safety distance as defined in EN ISO 13855 and EN ISO 13857 depends on Stopping run down time of the machine or system The stopping run down time is shown in the machine documentation or must be determined by taking a measurement Response time of the protective device The person s speed of approach Resolution of the light curtain and or beam separation When using the GuardShield PAC three beam with 400 mm beam spacing EN 999 requires that the first beam should be mounted at 300 mm above the floor When mounted in this configuration it is necessary to add 850 mm as the value for C in the safety distance calculation equation Figure 7 Safety distance from the point of danger Allen Bradley Guard marte How to Calculate the Safety Distance S According to EN ISO 13
31. blication in whole or part without written permission of Rockwell Automation is prohibited Throughout this manual we use notes to make you aware of safety considerations Identifies information about tc or circumstances that can cause an explosion in a hazardous environment which may lead to personal injury or death property damage or economic loss Identifies information that is critical for successful application and understanding of IMPORTANT the product l wi3 Id identifies information about practices or circumstances that can lead to personal injury or death property damage or economic loss Attentions help you identify a hazard avoid a hazard and recognize the consequences eevee Labels may be on or inside the equipment for example drive or motor to alert people that dangerous voltage may be present vam Labels may be on or inside the equipment for example drive or motor to alert people that surfaces may reach dangerous temperatures PP EE It is recommended that you save this user manual for future use GuardShield PAC Safety Light Curtain Installation Instructions Conditions required for proper use of the GuardShield PAC Safety Light Curtain Please make sure you read and understand these requirements before you select and install the GuardShield PAC safety light curtain GuardShield PAC safety light curtains are perimeter access safeguarding devices These safety light curta
32. ce for a whole body detection and can not be used in horizontial detection applications as it may be possible for personnel to step between the beams and access the hazard without being detected Depending on the application mechanical protection devices may be required in addition to the safety light curtain IMPORTANT These installation instructions are designed to address the technical personnel of the machine manufacturer and or the installer of the safety system regarding the proper mounting configuration electrical installation commissioning operation and maintenance of the GuardShield safety light curtain These installation instructions do not provide instruction for the operation of machinery to which the GuardShield safety light curtain is or will be integrated Only qualified personnel should install this equipment Additional measures may be necessary to ensure that the ESPE does not fail to danger when other forms of light radiation are present in a particular application i e use of cableless control devices on cranes radiation from weld spatter or effects from strobe lights IMPORTANT GuardShield PAC Laser Alignment The laser light source in the integrated laser alignment system of the GuardShield PAC light curtains is a Class 1 eye safe laser diode with a wavelength of 670 nm Original instructions 3 GuardShield PAC Safety Light Curtain Installation Instructions This Class 1 eye safe
33. ctivated in the GuardShield PAC the application requires a safety contactor If MPCE EDM is not used K1 Original instructions 15 GuardShield PAC Safety Light Curtain Installation Instructions Typical Wiring Diagram To MSR127 Safety Relay Module 24V O Brown No Connection u D B l l 1 Brown 4 8 Transmitter oum Receiver 7 Blue 3 OSSD1 OSSD2 Blue 6 Grey Pink Q a mig 9 A1 52 12 13 23 33 4 K4 i MSR127 to A NT K5 A2 S21 S22 S34 14 24 34 42 O e m i CO O Reset K4 K5 GuardShield Light Curtain Connected to MSR22LM with Two Sensor Muting 24V DC 1Brown 7 Blue 3 Blue Receiver Transmitter Power Ki 5Grey__ 6 Pink Maintained up P B Muting START Sensor 9 K2 Oo Q O O 4 Oo O O O O O n Oo O O Al X44 943 S844 12 S14 S21 S22 S24 23 31 S32 34 S33 S41 S42 MSR22LM L 440R P23071 i f a A2 Mi M2 48 13 23 33 34 24 14 8 Oo o oO Oo O0 O O O O amp Ch pti Muting Lam p Ki Ke Bulletin 1005 Restart Safety Contactors Required or 7005 Safety Relays Lamp DC Common O O Allen Bradley Guard e morte Original instructions 16 GuardShield PAC Safety Light Curtain Installation Instructions
34. dShield two and three beam PACs can be used with one Transmitter or two corner mirrors to provide two or three sided protection o The use of each corner mirror reduces the maximum range of the GuardShield PAC by at least 1096 per mirror It is possible to use full length corner mirrors 440L AMO75 series 440L AM125 series Rockwell also offers pedestal floor mounting stands 440L Mounting Stand with Corner Mirror AMSTD which will accommodate the mounting of the GuardShield two or three beam PAC with the appropriate full 2 S length corner or mirror column mirrors LZ A Tarn Receiver Configuration is not allowed Mounting Stand with Corner Mirror r Transmitter Receiver Figure 4 Multi sided access control to danger zones with PAC multi beam safety light barrier Allen Bradley 8 Original instructions Guard marte Figure 5 GuardShield three beam PAC and corner mirrors mounted to pedestal floor stands Figure 6 GuardShield two beam PAC and corner mirrors mounted to pedestal floor stands Figures 5 and 6 show two and three beam GuardShield PACs with two corner mirrors providing three sided detection Mirrors are offered in either narrow or wide styles in heights to accommodate two or three beam GuardShield PACs Response Time The response time of the two and three beam GuardShield PAC safety light curtain is 20 ms without bea
35. ding OSSDs over a DeviceNet or DeviceNet safety network The ArmorBlock Guard I O option is only available in GuardShield PACs with integrated laser alignment systems Selectable functions of the GuardShield PAC and GuardShield PAC with integrated laser alignment are Beamcoding EDM External Device Monitoring Start interlock Restart interlock Allen Bradley Guard tmarte GuardShield PAC Safety Light Curtain Installation Instructions Selectable functions of GuardShield PAC with ArmorBlock Guard I O connectivity Beam coding Range of Uses of the Device The GuardShield PAC safety light curtain is classified as electro sensitive protective equipment ESPE The maximum protective field width is 16m 52 5ft for the GuardShield PAC The device is a Type 4 ESPE as defined by IEC 61496 1 and CLC TS 61496 2 and is therefore allowed for use with controls in safety category Type 4 in compliance with EN ISO 13849 SIL CL3 in accordance with EN 62061 or up to PLe in accordance with EN ISO 13849 The device is suitable for Hazardous area protection Access protection Access to the hazardous point must be allowed only through the protective field The machine system is not allowed to start as long as personnel are within the hazardous area Refer to the Examples of Range of Use on page 6 for an illustration of the protection modes The GuardShield PAC is intended as a perimeter or access protection devi
36. e total response time of the machine is shorter than the calculated value 5 o Cables and plugs of the GuardShield PAC are in flawless condition 6 o Mounting brackets caps and cables are tightly secured Cleaning If the optic front cover of the GuardShield PAC is dirty the outputs of the GuardShield PAC may turn off Take a clean soft cloth and rub without pressure Do not apply aggressive abrasive or scratching cleansing agents which might attack the surface Allen Bradley Guard e morte GuardShield PAC Safety Light Curtain Installation Instructions Date Code Bu Type 440L Ambient Temp 10 55C Ser Rev Part No RAA2500YD A B Power Consumption 7W max Made in Jun 2010 Supply Voltage 24V DC 20 Ref No MATRE AA00AAO0 0 13849 PLe SIL CL3 SIL3 EN62061 IEC61508 is 6 9 Allen Bradley e Safety Parameters Type 4 Cat 4 Operating Instructions PN 11790 TM GuardShield pac Degree of Protection A Guord e marter Rockwell Automation 2 Executive Dr Chelmsford MA 01824 978 441 9500 Product of Mexico Bul Type 440L Part No IR4A2500YD A B Response Time w o Coding 20ms of Beams Spacing 2 520mm Electro Sensitive Protective Equip 19KP US Protective Height Range 0 3 16m Response Time with Coding lt 30ms Location of Manufacture Week of Manufacturer X XX Mor 4K R 02 Mrepresented Manchester NH replaced by 4K for Monterrey Mexico
37. ector R Pigtail w Y connector cable Document Control Number SEN 0339 H EN Original 32 Original instructions Allen Bradley Guardini GuardShield is a trademark of Rockwell Automation Inc www rockwellautomation com Power Control and Information Solutions Headquarters Americas Rockwell Automation 1201 South Second Street Milwaukee WI 53204 USA Tel 1 414 382 2000 Fax 1 414 382 4444 Europe Middle East Africa Rockwell Automation Vorstlaan Boulevard du Souverain 36 1170 Brussels Belgium Tel 32 2 663 0600 Fax 32 2 663 0640 Asia Pacific Rockwell Automation Level 14 Core F Cyberport 3 100 Cyberport Road Hong Kong Tel 852 2887 4788 Fax 852 2508 1846 Publication PN 72742 Copyright 62012 Rockwell Automation Inc All Rights Reserved Printed in USA 10000100941 Ver 01 August 2012
38. ed and serviced only by a qualified person A qualified person is defined as a person who Has undergone the appropriate technical training and Who has been instructed by the responsible machine operator in the operation of the machine and the currently valid safety guidelines and Who has read and has ongoing access to these installation instructions Proper Use The GuardShield PAC safety light curtain must be used only as defined in the Range of Uses of the Device It must be used only by qualified personnel and only on the machine where it has been installed and initialized by qualified personnel If the device is used for any other purposes or modified in any way warranty claims against Allen Bradley Guardmaster shall become null and void injury Failure to observe may result in dangerous aperation General Protective Notes and Protective Measures Safety Notes Please observe the following items in order to ensure the proper and safe use of the GuardShield safety light curtain ee s E 4 Original instructions Allen Bradley Guard marte The national international rules and regulations apply to the installation use and periodic technical inspections of the safety light curtain in particular Machine Directive 98 37 EEC Equipment Usage Directive 89 655 EEC The work safety regulations safety rules Other relevant health and safety regulations Manufacturers and users of the machine with whic
39. eld PAC is shipped from the factory in the guard only mode Start Interlock The start interlock prevents the OSSD outputs from switching to ON state after power up of the system with the protective field unobstructed A manual reset of the system is required for the GuardShield PAC to enter the ON state This can be accomplished by one of two methods Actuation of a momentary N O push button Interruption and restoration of the protective field within one second Activation of this mode of operation and selection of the resetting method is through dip switch settings Indication of this mode of operation is through illumination of a yellow LED on the GuardShield PAC receiver IMPORTANT Start interlock is not available in GuardShield PAC light curtains with ArmorBlock Guard I O connectivity Restart Interlock The restart interlock mode of operation prevents the OSSD outputs from switching to ON after interruption and clearance of the protective field A manual reset of the GuardShield PAC 6 Original instructions system is required Resetting of the system is accomplished through a momentary N O push button or key switch Configuration and activation of this mode of operation is through dip switch settings The Restart Interlock mode is indicated by the illumination of a yellow LED on the GuardShield PAC s receiver IMPORTANT Itis not possible to have both Start Interlock and Restart Interlock configured at the
40. ements as specified in the beginning of this manual i e machinery must be able to be stopped anywhere in its stroke or cycle consistently and repeatedly The GuardShield PAC must be mounted at the proper distance from the point of operation hazard This distance is referred to as the Safety Distance ANSI RIA 15 06 requires that the first beam of the GuardShield PAC be mounted at 300 mm 12 in off of the floor in vertical applications The protective height of the GuardShield PAC three beam is 820 mm The combination of 300 mm 12 in and 820 mm equals 1120 mm which meets the ANSI RIA 15 06 requirements of a reach over application This requires that the depth penetration factor Dpf be 48 in when performing the safety distance calculation Original instructions 11 GuardShield PAC Safety Light Curtain Installation Instructions The standard GuardShield PAC has an LED in the receiver which is used as an alignment aid This LED will begin flashing when the infrared light from the transmitter is seen by the receiver This LED turns off when optimal alignment is attained An external laser 440L ALAT and mounting bracket 440L AF6109 is offered as an accessory for aligning the GuardShield PAC Alignment Procedure Standard GuardShield PAC Mount and connect both transmitter and receiver They must be parallel to each other and be positioned at the same height Turn on power to GuardShield PAC system Rotate the Tran
41. ge level for Logic Hi 1 gt 16V DC Inputs Receiver Logic Lo Start Restart Interlock Minimum duration 100ms maximum duration 900 ms Voltage level for Logic Lo 0 0 5VDC Voltage level for Logic Hi 1 gt 16V DC MPCE 300 ms after activation of OSSD Voltage level for Logic 0 0 5VDC Voltage level for Logic Hi 1 gt 16V DC Outputs Safety Outputs 0SSDs Two solid state outputs max switching capacity 500 mA resistive inductive short circuit protected max residual voltage 2V excl voltage drop Auxiliary Output through cables Solid state output max power consumption 500 mA resistive inductive max residual voltage 2V nonsafety output Max Off State leakage current 1 mA Max Capacitive Load 0 18 uF Status Indicators Receiver ON state Constant ON when system is in ON state green LED OFF state Constant ON when system is in OFF state red LED Lights up at interruption of protective field or if fault occurs Lights up if input signal is too weak amber LED Alignment Lights up when light curtain is in start or restart interlock mode yellow LED Interlock Status Indicators Sender Power ON Lights up when voltage is on amber LED Emitting Constant ON when transmitter is active yellow LED QD Connectors Transmitter M12 plug 4 pin receiver M12 plug 8 pin for standard GuardShield PAC and PAC with integrated laser alignment system GuardShield PAC with ArmorBlock 1 0 5 pin M12 Cable Length Maximum
42. ginal instructions 18 Guard mare System Configuration DIP Switch Selection Settings Transmitter Door Status Switch Teach Button mes E t Ld L y ae After mounting electrically connecting and aligning the GuardShield PAC safety light curtain it is now possible to configure your system To begin system configuration use the security tool provided to loosen the screw in the configuration door Note The configuration door screw is a captive screw Note The transmitter can only be configured for beam coding and Machine Test Signal If neither of these configurations are required then it is only necessary to configure the GuardShield PAC receiver Identify and set the appropriate dip switches for the configuration desired Dip switch identification and function is explained in the tables below Follow the Teach Function Procedure to reconfigure the GuardShield PAC After each reconfiguration of the GuardShield PAC test the system for proper configuration and operation before placing the guarded machine in operation When delivered from the factory the following settings are configured Allen Bradley Gu lindter GuardShield PAC Safety Light Curtain Installation Instructions Receiver Factory Settings Switch Description 1 Mode Activation Combination Guard Only 2 activates one ofthe following modes Guard only Start interlock Restart Interlock 3 MPCE
43. h the safety light curtain is used are responsible for obtaining and observing all applicable safety regulations and rules The notices in particular the test regulations of these installation instructions e g on use mounting installation or integration into the existing machine controller must be observed Thetests must be carried out by specialist personnel or specially qualified and authorized personnel and must be recorded and documented to ensure that the tests can be reconstructed and retraced at any time The installation instructions must be made available to the user of the machine where the GuardShield PAC safety light curtain is installed The machine operator is to be instructed in the use of the device by specialist personnel and must be instructed to read the installation instructions Product Description This section provides information on the special features and properties of the safety light curtain It describes the structure and functions of the unit in particular the different operating modes gt Please read this section before mounting installing and commissioning the unit Special Features Start interlock Restart interlock External Device Monitoring EDM Machine test signal Beam coding GuardShield Light Curtain Principle of Operation The GuardShield PAC safety light curtain consists of a nonmatched pair of optic units i e transmitter and receiver with the same number of bea
44. he transmitter generate different beam patterns which is referred to as Beam coding Selection and activation of beam coding is accomplished through dip switch settings in both the transmitter and receiver The following settings are available in the GuardShield PAC safety light curtain noncoded and coded TTE Beam coding improves resistance to optical interference Beam coding increases the system s response time which may also increase the required safety distance Refer to Safety Distance calculations on page 9 of this manual Applications and Application Require ments Applications The GuardShield PAC multi beam safety light curtain may be used as an opto electronic fence detecting the presence of personnel as they pass through the sensing field or for safeguarding access to a hazardous area or machine process Used in combination with corner mirrors the GuardShield PAC multi beam safety light curtains provide multiple side access detection When using corner mirrors to protect multiple sides of a machine or work cell the GuardShield PAC with integrated laser alignment is the preferred solution Activation of visible laser light allows positioning and adjustment of the transmitter receiver and corner mirrors A typical system configuration for access detection to a hazardous area or machine process is to have the GuardShield PAC multi beam safety light curtain connected to an external module along with two or fou
45. ins are intended to be used to provide perimeter access safeguarding of personnel around a variety of machinery The GuardShield PAC family of safety light curtains are general purpose presence sensing devices which are designed to protect personnel working on or near machinery The installation of the GuardShield PAC safety light curtains must comply with all applicable federal state and local rules regulations and codes It is the responsibility of the employer to properly install operate and maintain the product as well as the machinery on which the GuardShield PAC presence sensing device is installed GuardShield PAC safety light curtains must be properly installed by qualified personnel GuardShield PAC safety light curtains are presence sensing devices and will not protect personnel from heat chemicals or flying parts They are intended to signal a stop of hazardous machine motion when the sensing field is broken GuardShield PAC safety light curtains can only be used on or around machinery which can be stopped anywhere in its stroke or cycle GuardShield PAC safety light curtains should never be used for guarding full revolution clutched machinery The effectiveness of the GuardShield PAC safety light curtains depend upon the integrity of the machine control circuit The machinery that the GuardShield PAC presence sensing device is installed on should have control circuitry that is fail safe in design All stopping mechanisms
46. ly be used properly when the following conditions are satisfied Themachine or installation must be controlled electrically It must be possible to stop hazardous machine movement The PAC must be installed so that entry into the danger zone interrupts one or more of the light beams The light beam diameter of 23 mm 0 90 in must be fully covered to assure a change in state of outputs Release can only be achieved with the use of a restart switch The restart switch must be located such that it cannot be pressed from inside the danger zone The GuardShield PAC should be mounted such that upon interruption of the light beam the dangerous location can only be reached if the dangerous condition of the machine has been stopped The requirement for this is that there is a proper safety Original instructions 7 GuardShield PAC Safety Light Curtain Installation Instructions distance between the light beams and the nearest point of danger Mounting Stand with Corner Mirror Persons situated inside the danger zone but outside the Receiver protection field are not recognized It must therefore be ensured that a dangerous condition is only possible when there is nobody 2 present in the danger zone The relevant legal and government regulations are to be complied with the implementation of protection installations These regulations vary depending on areas of application Corner Mirrors and Mounting Columns The Guar
47. m coding or 30 ms with beam coding Allen Bradley Guard e morte GuardShield PAC Safety Light Curtain Installation Instructions Determining Stop Time The measurement of stopping time Ts must include the stopping times of all devices in the stop circuit Not including all device and control system elements when calculating Ts will result in an inaccurate safety distance calculation IMPORTANT Determining the Safety Distance The light curtain must be mounted with proper safety distance From the point of danger From reflecting surfaces US Safety Distance Formula The GuardShield PAC safety light curtains ZEE must be mounted at a sufficient distance from the hazardous motion to ensure that the machine stops before a person s body reaches the hazard This distance referred to as the safety distance must be properly calculated prior to mounting the light curtains around the machinery Failure to properly calculate this safety distance may result in operator injury In the United States there are two formulas that are used to properly calculate the safety distance The first the OSHA formula is the minimum requirement for the calculation of the safety distance The second formula the one recommended by Rockwell Automation is the ANSI formula which incorporates additional factors to be considered when calculating the safety distance OSHA Safety Distance Calculation Formula The OSHA safety distance for
48. ms and spacings The transmitter and receiver operate on 24V DC The maximum distance between the transmitter and receiver is referred to as the protective field width or range The protective field height is the distance between the first beam and the last beam in the device The transmitter emits sequential pulses of infrared light which are received and processed by the GuardShield PAC receiver The synchronization of the timing of the emission and reception of infrared light pulses is accomplished optically by the first beam adjacent to the GuardShield PAC s status LEDs This beam is Allen Bradley Guard e morte GuardShield PAC Safety Light Curtain Installation Instructions referred to as the synchronization beam Because the GuardShield PAC s transmitter and receiver are optically synchronized no electrical connection is required between the transmitter and receiver The GuardShield PAC s receiver has two safety outputs OSSDs Output Signal Switching Devices and one nonsafety auxiliary output When the GuardShield PAC s transmitter and receiver are properly powered and aligned all OSSDs are current sourcing 24V DC with a switching capacity of 500mA The two safety OSSDs are cross monitored and short circuit protected Interruption of the sensing field causes the Receiver to switch the sourced current Off OV DC Restoring the GuardShield PAC s sensing field in Guard only configuration causes all outputs OSSDs to s
49. mula as specified in CFR Subpart O 1910 217 is as follows Ds 63 XT Ds Safety Distance 63 Is the OSHA recommended hand speed constant in inches per second Ts Is the total stop time of all devices in the safety circuit measured in seconds This value must include all components involved in stopping the hazardous motion of the machinery For a mechanical power press it is the stopping time measured at approximately the 90 position of the crankshaft rotation Original instructions 9 GuardShield PAC Safety Light Curtain Installation Instructions The T number must include the response times of all devices including the response time ofthe safety light curtain the safety light curtain controller if used the machine s control circuit and any other devices that react to stop the hazardous motion of the machinery Not including the response time of a device or devices in the stop time calculation will result in insufficient safety distance for the application This may result in operator injury IMPORTANT The ANSI Safety Distance Formula The ANSI safety distance formula which is the Rockwell Automation recommended formula is as follows D Kx T Tc T Tym Dor Ds Minimum safety distance between the safe guarding device and the nearest point of operation hazard in inches K Hand speed constant in inches per second The ANSI standard value is 63 in per second when the operator begins reaching toward
50. nment 1 Properly locate the GuardShield PAC pair from the point of operation hazard after performing the safety distance calculation 2 Using the GuardShield PAC mounting brackets mount the transmitter and receiver so that they are facing one another and are positioned in the same direction A reference would be that the indicator LEDs are opposite one another 3 Turn on each laser by placing a finger or hand in front of each laser 4 Adjust the transmitter and receiver in such a way that both visible laser beams hit the laser targets opposite each laser A small deviation from the center of the target is allowable 12 Original instructions Multiple GuardShield PACs When two or more GuardShield PACs are mounted in close proximity to one another it may be possible for the receiver of one GuardShield PAC pair to receive infrared light from the transmitter of another GuardShield PAC pair This optical interference can be over come by the GuardShield PAC feature of Beam Coding Beam coding changes the pulse pattern of infrared light emitted by a GuardShield PAC transmitter Transmitters emit in opposite direction Each receiver receives only the beams of the appropriate transmitter lt Tr UT ES Transmitters emit in same direction Coding necessary Lu Lu Uu uU Positioning of the light curtain Transmitters emit in opposite direction U cr rl po
51. of gt 3 0 m 9 8 ft Calculate the minimum distance to reflecting surfaces depending on the distance between the transmitter and the receiver using an aperture angle of 2 5 or take the appropriate value from the following table Distance Between Transmitter and Receiver Minimum Distance Range L m ft a mm in 0 2 to 3 0 0 65 to 9 8 135 5 31 4 0 13 1 175 6 88 5 0 16 4 220 8 66 6 0 19 6 265 10 43 7 0 22 9 310 12 2 10 0 32 8 440 17 32 16 0 52 4 700 27 55 Note Note formula a tan 2 5 x D mm a minimum distance to reflecting surfaces D distance between transmitter and receiver Installation and Mounting This section describes the preparation selection and installation of the GuardShield PAC safety light curtain The GuardShield PAC safety light curtain is suitable for most operating environments IP65 environmental rating Proper safety distance must be observed IMPORTANT The installation of the GuardShield PAC safety light curtain must adhere to the ANSI standard B11 19 E4 2 3 3 6 which requires that a presence sensing device shall prevent the operator or others from reasonably reaching over around or under the sensing field into the hazardous area Auxiliary safeguarding may be required in conjunction with the GuardShield PAC to meet this requirement Determine if the machinery on which the GuardShield PAC is to be mounted meets the requir
52. r sensors The external module allows material to pass through the GuardShield PAC multi beam s sensing field without stopping the machine or equipment as long as the muting conditions are met As the material is moving through the process the GuardShield PAC multi beam s sensing field is interrupted and the outputs switch to the OFF state However if the muting module sensors are interrupted with the proper timing the module disregards the GuardShield PAC multi beam s outputs and remains in the ON condition allowing the machinery or equipment to continue operation If the muting sensors are not interrupted and maintained in the required timing and or sequence the muting module will switch OFF when the GuardShield PAC multi beam s sensing field is interrupted Allen Bradley Gu linditer GuardShield PAC Safety Light Curtain Installation Instructions Figure 2 is an example of a GuardShield PAC three beam safety light curtain used as an opto electronic fence with corner mirror columns Figure 3 is an example of a GuardShield PAC three beam with four retroreflective sensors and an external muting module PAC PAC Transmitter Receiver an A Cv Corner Mirror Figure 2 GuardShield PAC three beam with corner mirror columns Work Piece Roller Work Path Muting Module Figure 3 GuardShield PAC three beam with muting module Application Requirements The protective functions of the PAC can on
53. rective 2006 42 EC and the product standard IEC 61496 3 o Proper polarity of the power supply at the GuardShield PAC 4 o Thetransmitter connection cable is properly connected to the transmitter the receiver connection cable is properly connected to the receiver 5 o The double insulation between the light curtain output and an external potential is ensured The OSSD outputs are not connected to 24V DC o Theconnected switching elements load are not connected to 24V DC o Noconnection to a conventional power supply o If two or more GuardShield PAC are to be used make sure that each system is properly installed in order to avoid optical interference Switch the GuardShield PAC on and check its function by observing the following 10 o 2seconds after switching on the system starts to work properly if the protective field is free of obstructions Safety Instructions Maintenance Maite Never operate the GuardShield PAC before carrying out the following inspection Improper inspection can lead to serious or even deadly injury Note For safety reasons all inspection results should be recorded 2 Only persons who clearly understand the functioning of the GuardShield PAC and of the machine may carry out an inspection 3 If installer planning engineer and operator are different people make sure that the user has sufficient information available to carry out the inspection 22 Original instr
54. smitter while watching the amber LED on the receiver to find the point where the indicator for the ON state Green LED illuminates and the amber LED goes off Determine the maximum left and right turning angles and position unit in center Tighten all hardware assuring that the alignment indicator is not illuminated Cycle power to assure that the system powers up and goes to the ON state alignment indicator is OFF The GuardShield PAC meets the requirements of IEC 61496 which requires that the optics of the transmitter and receiver emit and receive infrared light at a maximum of 2 5 This requirement creates a tight optical path of infrared light and as such may make the GuardShield PAC somewhat difficult to align at maximum range or when corner mirrors are being used in the application to provide two or three sided perimeter guarding When using the GuardShield PAC in perimeter guarding applications particularly with corner mirrors it is best to use the Allen Bradley GuardMaster laser alignment tool to ease the alignment process The laser alignment tool part number is 440L ALAT It is also necessary to use the GuardShield mounting bracket 440L AF6109 to mount the laser alignment tool to the GuardShield PAC housing The GuardShield PAC is also offered with an integrated laser alignment system Select the appropriate cat nos for this model of GuardShield PAC Alignment Procedure for GuardShield PAC with Integrated Laser Alig
55. start button OSSD 2 ov Pin 8 OSSD 1 NC 24V Figure 10 Connecting the reset button restart button Not available for GuardShield PAC with IMPORTANT Ae IMPORTANT ArmorBlock Guard I O connectivity Ww E E 14 Original instructions Allen Bradley Guard marte GuardShield PAC Receiver Interconnecting Patchcords to ArmorBlock 1 0 Description 5 pin M12 patchcord 12 inches 889D F5ACDM 0M3 889D F5ACDM 1 889D F5ACDM 2 889D F5ACDM 5 889D F5ACDM 10 5 pin M12 patchcord 1 meter 5 pin M12 patchcord 2 meters 6 pin M12 patchcord 5 meters 7 pin M12 patchcord 10 meters Typical Wiring Diagram Direct to Contactors GuardShield PAC Safety Light Curtain Installation Instructions 24V DC s2 l Transmitter Receiver Start Restart 1 1 2 Brown l Brown Red 1 8 1 l Grey 0ssD1 ee l 5 1 1 H K2 L9 TE n 1 Test gt Machine Bulletin 1005 Test uh Pink OSSD 2 Safety Contactors Signal 6 or 700S Safety Relays i I Black H Kl 24 nt V Pim 4 Yellow MPCE EDM 1 White Aux cht M 7 Blue Auxiliar BI y ue 3 Green C9 Signal 24V Ground TIT Nonsafety auxiliary output can be connected to a lamp motor or status to a PLC Note amp K2 can be standard contactors Allen Bradley Guard e morte If MPCE EDM is a
56. uardShield PAC receiver The synchronization of the timing of the emission and reception of infrared light pulses is accomplished optically by the first beam adjacent to the GuardShield PAC status LEDs This beam is referred to as the synchronization beam Because the GuardShield PAC transmitter and receiver are optically synchronized no electrical connection is required between the transmitter and receiver The GuardShield PAC receiver has two safety outputs Output Signal Switching Devices OSSDs and one nonsafety auxiliary output When the GuardShield PAC transmitter and receiver are properly powered and aligned all OSSDs are current sourcing 24V DC with a switching capacity of 500 mA The two safety OSSDs are cross monitored and short circuit protected Interruption of the sensing field causes the receiver to switch the sourced current OFF OV DC Restoring the GuardShield PAC sensing field in Guard only configuration causes all outputs OSSDs to switch to the active high state resume current sourcing 24V DC with a switching capacity of 500 mA The GuardShield PAC is offered in a number of configurations based on a standard Type 4 safety light curtain platform In addition to the standard GuardShield PAC the GuardShield PAC is offered with an integrated laser alignment system or with an integrated laser alignment system with connectivity to ArmorBlock Guard I O The ArmorBlock Guard I O optim allows network connectivity provi
57. uctions Daily Inspection 1 4 o o Approach to hazardous machine parts must only be possible through the protective field of GuardShield PAC Operators cannot step through the sensing area while working on dangerous machine parts The safety distance of the application is bigger than the calculated value The optic front cover is neither scratched nor dirty Operate the machine and check if the hazardous movement will stop under the following circumstances gi IMPORTANT o o o The protective field is interrupted Hazardous machine movement stops immediately if the protective field is interrupted by the test rod directly in front of the transmitter directly in front of the receiver and in the middle between transmitter and receiver No hazardous machine movement while completely interrupting any of the PAC beams The power supply of the GuardShield PAC is turned off If any of the above conditions do not result in the hazardous motion of the machine ceasing do not allow the protected machine to be placed in operation Allen Bradley Guard marte Six Month Inspection Check the following items every six months or whenever a machine setting was changed Machine stops or does not obstruct any safety function 2 o The latest machine or connection modifications have no effect on the control system 3 o The outputs of the GuardShield PAC are properly connected to the machine 4 o Th
58. ve pin connector The transmitter in that GuardShield pair is a standard GuardShield PAC transmitter with integrated laser alignment system offered with a four pin M12 quick disconnect connector It is possible to connect either a standard four pin M12 cordset or the five pin M12 quick disconnect connector patchcord to this transmitter Original instructions 29 GuardShield PAC Safety Light Curtain Installation Instructions GuardShield PAC Cordsets 42 i 1 65 1 15 0 57 B _y For Connection to GuardShield PAC and GuardShield PAC with Integrated Laser Alignment Description m ft 8 pin DC Micro Straight Female Cordset 2 6 5 889D F8AB 2 889D F8AB 5 889D F8AB 10 889D F8AB 15 889D F8AB 20 889D F8AB 30 8 pin DC Micro Straight Female Cordset 5 16 4 8 pin DC Micro Straight Female Cordset 10 32 8 8 pin DC Micro Straight Female Cordset 15 49 2 8 pin DC Micro Straight Female Cordset 20 65 6 8 pin DC Micro Straight Female Cordset 30 98 4 For Connection to GuardShield PAC Transmitters Description 889D F4AC 2 889D F4AC 5 889D F4AC 10 889D F4AC 15 889D F4AC 20 889D F4AC 30 4 pin DC Micro Straight Female Cordset 2 6 5 4 pin DC Micro Straight Female Cordset 5 16 4 4 pin DC Micro Straight Female Cordset 10 32 8 4 pin DC Micro Straight Female Cordset 15 49 2 4 pin DC Micro Straight Female Cordset 20 65
59. witch to the active high state resume current sourcing 24V DC with a switching capacity of 500m4A The GuardShield PAC Light Curtain The GuardShield PAC safety light curtain consists of a transmitter and a receiver Transmitter Receiver Figure Components of the GuardShield PAC The individual beams of the GuardShield PAC are identified by markings on the housings The width of the protective field is derived from the length of the light path between sender and receiver and must not exceed the maximum rated width of the protective field 16 m 52 5 ft The GuardShield PAC is also offered with an integrated laser alignment system which has a constantly powered Class 1 eye safe laser located in the top of the GuardShield PAC transmitter and in the bottom of the GuardShield PAC receiver Each Class 1 eye safe laser emits a low level of visible light Simply blocking this light below the finger symbol causes the light to be reflected back to a photo sensor which changes the condition of the laser light If this light is at a low level interrupting it will cause the laser to emit a highly visible level of light Interrupting the visible light in the same location will cause the laser to switch to a low level of emission The emission of visible light will also change to a low level after five minutes of activation Across from each laser is a target used to help with the alignment of the GuardShield PAC pair Positioning the visible
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