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Tapeswitch GS-120 Technical Manual

Photo-electric light curtain systems
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Release 7/2009 Ver. 1.0
Technical Manual: GS-120 Light Curtain Systems
GS-120 Photo-Electric Light Curtain Systems
Technical Manual
WARNING
Tapeswitch photo-electric safety systems are intended to protect operators working at or near
dangerous machinery. They can only perform this function if they are correctly fitted to a
suitable machine. It is essential that the full contents of this manual and all the international
documents referred to herein are fully understood before any attempt at installation is made.
If in doubt, contact Tapeswitch Corporation.
IMPORTANT
This manual must accompany the product throughout its working life. Those persons
responsible for the product must ensure that all persons involved in the installation,
commissioning, operation, maintenance and servicing of the product have access to all the
information supplied by the manufacturers of the machine and its safety system.

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Summary of Contents for Tapeswitch GS-120

  • Page 1 Technical Manual WARNING Tapeswitch photo-electric safety systems are intended to protect operators working at or near dangerous machinery. They can only perform this function if they are correctly fitted to a suitable machine. It is essential that the full contents of this manual and all the international documents referred to herein are fully understood before any attempt at installation is made.

  • Page 2: Table Of Contents

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems TABLE OF CONTENTS GENERAL INTRODUCTION PRODUCT Range 1.2.1 General 1.2.2 Detection Capability 1.2.3 Protected Heights 1.2.4 Accessories 1.2.4.1 Mirror Units 1.2.4.2 Mounting Stands ORDERING INFORMATION 1.3.1 GS-120 Light Curtain Order Code 1.32...
  • Page 3 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 4.1.2.1 PNP Version Manual Reset 4.1.2.2 PNP Version Auto Reset 4.1.2.3 SSR Version 4.1.3 Connections to an AS-i System PERIODIC CHECKING, SERVICING, AND MAINTENANCE PERIODIC CHECKING 5.1.1 Commissioning Checks 5.1.2 6 or 12 Month Periodic Checks 5.1.3...

  • Page 4: General

    1.2.1 GENERAL The GS-120 light curtains are available in a range of different protected heights and detection capabilities. These two parameters are known by many other names and therefore it may be useful to define them here, as they are intended to be used in this manual.

  • Page 5: Detection Capability

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 1.2.3 PROTECTED HEIGHTS GS-120 light curtains are available with nominal protected heights as follows: Detection Capability Nominal protected heights (in mm and inches) 30mm (1-3/16 in.) 200-300-400-600-800-900- 1000-1200-1400-1600 mm (8-12-16-24-32-36-40-48-56- 64-72 inches) 70mm (2-3/4 in.)
  • Page 6 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems Glass Reflective Surface Pivot Bracket Overall Length = Protective Height + 4" 180° Rotation Pivot Brackets in this Plane (180° Rotation; Distance X is Adjustable) Supplied with: 1. 1-40mm x 40mm extrusion, 100mm larger than protective height.

  • Page 7: Mounting Stands

    GS-120/32”(808mm)/70 0822 The mounting stands are supplied with all of the necessary hardware to facilitate mounting a standard GS-120/40”(1008mm)/70 0823 GS-120 light curtain. Leveling bolts allow for minor GS-120/48”(1208mm)/70 0824 adjustments to the floor stand orientation. GS-120/56”(1408mm)/70 0825 GS-120/64”(1608mm)/70 0826 GS-120/72”(1808mm)/70...

  • Page 8: Gs-120 Light Curtain Order Code

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 1.3.1 GS-120 LIGHT CURTAIN ORDER CODE GS120 / XXX / X / XXXX / XX / XXXX / XX Outputs: PNP = 2 x PNP outputs SSR = 2 x Solid-State Relays...

  • Page 9: Cable Options

    The emitter has a 5-wire cable and the receiver has an A basic GS-120 light curtain consists of two units: an 8-wire cable. One end of each cable has a keyed quick- emitter unit and a receiver unit.

  • Page 10: Communications

    This input simulates a curtain obstructed condition. time. The emitter unit runs independently from the receiver unit. There are no connections between the NOTE: This input is provided to allow the GS-120 to be units. used with machine control systems which need to cycle the safety circuit prior to operation.

  • Page 11: Indicators

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems INDICATORS 2.4.1 LED OPTION The standard/master receiver unit has four status indicators as shown in Figure 4. The standard/master emitter unit has two status indicators as shown in Figure 5. The slave emitter and receiver have one status indicator as shown in Figure 6.

  • Page 12: Diagnostic Option

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 2.4.2 DIAGNOSTIC OPTION For this option, the LED indicators on the standard and master emitter units and all slave units are the same as shown for the LED option above in Figures 4, 5, and 6.

  • Page 13: Installation

    This is known as “start/restart ensure that all persons involved in the interlock”. The GS-120 can provide this function, but if it installation of the photo-electric safety is not installed, it must be provided elsewhere within the...
  • Page 14 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems The physical parameters affecting the positioning are the dimensions of the detection zone of the light curtain (i.e. the protected height and the range) and the minimum separation distance. These are described in the following sections.

  • Page 15: Multi-Sided Guarding

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 3.2.1.1 Multi-Sided Guarding By using mirror columns the light curtain beams can be deflected around corners to form two and three sided guard configurations. It should be borne in mind that for each mirror used the range is reduced by approximately 20%.

  • Page 16: Curtain Dimensions

    3.2.2.1 GS-120 Basic System All the dimensions relating to the curtain, for each of the GS-120 systems are shown in Figure 12. The upper and lower boundaries of the curtain are indicated by The curtain dimensions are defined by the protected arrows on the front window labels of each unit.

  • Page 17: Gs-120 Multi-Beam System

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 3.2.2.2 GS-120 Multi-Beam System All the dimensions relating to the curtain, for each of the Multi-beam systems (or multi-beam slave systems) are shown in Figure 13. Figure 13 TAPESWITCH CORPORATION...

  • Page 18: Gs-120 Cascaded System

    Type GS-120/M is a master Type GS-120/A is a slave Type GS-120/D is a slave with a connector at each end Master and slave units can be assembled up to a maximum of 240 beams. Where:...

  • Page 19: Separation Distance

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 3.2.3 SEPARATION DISTANCE Any machine, regardless of the efficiency of its braking system, will take a certain time to come to rest after a stop signal is generated. The time from the instant that the curtain is broken to the instant that dangerous motion actually ceases is called the “overall system response time”.
  • Page 20 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems The minimum separation distance depends on the Response time of the presence-sensing device application. The following formula should be used when and its interface, if any, as stated by the calculating this distance: manufacturer or as actually measured.

  • Page 21: Parallel Approach

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 3.2.3.2 Parallel Approach Parallel approach format is shown in Figure 16. For For this type of protective equipment, the height H of the parallel approach format the outer curtain detection limit detection zone shall not exceed 1000mm.

  • Page 22: Angled Approach

    3.2.3.4 Approach to ‘L’ Installation If it is necessary to install the curtain, at an angle to the If vertical and horizontal master/slave GS-120 light direction of approach as shown in Figure 17, then the curtains are used together as in Figure 18, where the...

  • Page 23: Optical Alignment

    Misalignments, as illustrated in Figure 19, should be field of view can lead to non-detection of an obstruction. avoided. Tapeswitch offers a laser alignment tool to add The field of view of each of the emitter and receiver visible assistance over longer range or when mirrors are units is approximately 5 degrees either side of the used.

  • Page 24: Systems In Close Proximity

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 3.2.6 SYSTEMS IN CLOSE PROXIMITY 3.2.7 MOUNTING BRACKETS In order to avoid nuisance interference between Mounting brackets and their associated hardware are adjacent systems, whenever two or more emitter- provided with the emitter and receiver units.
  • Page 25 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems This makes replacement of a unit much easier as the new unit will have the brackets already in the correct position. The position of the clamps on the units is shown in Figure 23.
  • Page 26 Figure 26 TYPE AB - MOUNTING BRACKETS Type AB adjustable mounting brackets are an optional choice for GS-120 Light Curtains. Combining a robust design and quick release capability, these brackets allow for speedy installation and easy interchange of a light curtain unit without the need for re-alignment. To request this option when ordering your light curtain please specify "AB"...

  • Page 27: Electrical Interface, Operation, And Installation

    DC supply must be isolated by means of a safety transformer which conforms to the requirements of The basic GS-120 system consists of an emitter and IEC61558-2-6. The emitter, receiver and interface unit receiver. The receiver unit provides two safety outputs.

  • Page 28: Test Input

    On some machines, a test input is used to check the interface between the photo-electric safety device and The GS-120 is available with two output modes, PNP the machine. The input simulates the obstruction of the and SSR, as shown in the order codes in section 1.3.

  • Page 29: Pnp Version

    Figure 31- PNP Version Receiver Connections 3.3.3.2.2 Start/Restart and External Device Monitoring (EDM) In the PNP mode the GS-120 can be set up for either manual or automatic start and restart. This function is determined by the connections to the unit. In manual mode, the outputs will only switch on when the curtain is clear and a reset switch is closed and then opened.

  • Page 30: Ssr Version

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems Figure 35 – Manual Restart with EDM 3.3.3.3 SSR Version This version has two voltage-free solid-state outputs. It operates in automatic mode, so the outputs will be on whenever the curtain is clear and off whenever the curtain is obstructed.

  • Page 31: Interfacing To A Machine

    PNP outputs of 3.3.4.1 PNP Version Manual Reset the light curtain. It may be possible to connect the GS-120 directly to the Machinery Primary Control Elements (MPCE) as shown in Figure 37. The GS-120 provides the Start/Restart function necessary to avoid unintended initiation of the machine.

  • Page 32: Pnp Version Auto Reset

    Technical Manual: GS-120 Light Curtain Systems 3.3.4.2 PNP Version Auto Reset IMPORTANT The GS-120 can be used in Auto Restart mode as shown in Figure 38. If this mode is selected, the Manual A number of manufacturers produce units containing Restart function must be provided elsewhere in the circuits of this type.

  • Page 33: Ssr Version

    IMPORTANT A number of manufacturers produce units containing The interfacing of a GS-120 light curtain to a machine circuits of this type. Care should be taken to ensure that can be achieved by means of an interface unit such as the inputs of these units can accept the volt-free outputs the Pilz PNOZ 8.

  • Page 34: Initial Checking And Alignment

    Periodic checks in accordance with section 5.1.2 should be carried out at the prescribed intervals. Daily checks to be performed on the GS-120 system are detailed in section 5.1.3 of this manual. In some cases there are specific statutory...

  • Page 35: Interface And Auxiliary Units

    The interface unit must be designed Both of these outputs must be used to take to the same level of integrity as the GS-120 in order to advantage of the inherent redundancy of the maintain the same overall level of safety.

  • Page 36: Special Interfacing Considerations

    4.1.2.1 PNP Version Manual Reset Fuse MPCE It may be possible to connect the GS-120 directly to the Machinery Primary Control Elements (MPCE). The GS- 120 in this configuration provides the Start/Restart function necessary to avoid unintended initiation of the machine.

  • Page 37: Connections To An As-I System

    4.1.3 CONNECTIONS TO AN AS-i SYSTEM Note: The power supply leads of the GS-120 system A GS-120 system can be connected to an AS-i Safe should not be connected directly to the YELLOW AS-i System using standard AS-i Safe I/O modules as shown cable as this may cause AS-i data transmission in Figure 42.

  • Page 38: Periodic Checking, Servicing, And Maintenance

    5.1.4 of this manual. (c) Examine and inspect the machine controls and the connections to the GS-120 system to ensure that no modifications have been made which could adversely (g) Examine the machine controls and connections to...

  • Page 39: Daily/Setting Examination

    See Figure 43. (a) With power applied to the GS-120 system and with the machine at rest, check that the light curtain is functioning by observing the state of the appropriate indicators.

  • Page 40: Gs-120 Multi-Beam System

    Figure 44. (a) With power applied to the GS-120 system and with the machine at rest, check that the light curtain is functioning by observing the state of the appropriate indicators.

  • Page 41: Servicing

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems SERVICING MAINTENANCE The GS-120 system is designed to be serviced at unit level. There are no user-serviceable parts within the There are no mechanical, electrical or optical units. adjustments necessary.
  • Page 42 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems 6.0 TECHNICAL SPECIFICATIONS (Basic GS-120, Emitter and Receiver ONLY) EN 13849-1:2006 PLE, EN 954-1 CAT 4 TAPESWITCH CORPORATION Phone: 631-630-0442 100 Schmitt Boulevard Fax: 631-630-0454 Farmingdale, New York 11735 www.tapeswitch.com...

  • Page 43: Appendix A: Bsrsa Interface Unit

    Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems APPENDIX A – BSRSA INTERFACE UNIT GENERAL DESCRIPTION (loss of power or failure) it will be necessary to reset the system. The BSRSA interface unit is designed as a standalone control panel.
  • Page 44 (WRL) (Figure 50) show the proper terminal numbers and associated functions for the cabling between the GS-120 emitter and receiver units and the BSRSA interface unit. Be sure to observe the color coding shown to assure proper operation.
  • Page 45 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems TECHNICAL SPECIFICATIONS TEST INPUT The BSRSA interface includes a test input. This input is used to check the interface between the photo-electric Specifications Data Tolerance safety system and the machine. It electrically simulates an obstruction in the light curtain.
  • Page 46 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems Test Input (jumper if not used) 24 VDC In Safety Output 2 (NO) X6/1: +24 VDC X6/2: 0 VDC DC POWER CONNECTIONS Safety Output 1 (NO) Lockout Output (NO) Monitor Output (NO)
  • Page 47 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems B Series B Series Emitter Receiver 1 2 3 4 5 6 1 2 3 WH BN SHIELD BN WH BU BK GY BSRSA Controller Light Curtain Schematic Diagram Figure 49 –Light Curtain to BSRSA Interconnection Diagram...
  • Page 48 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems Color Cable # Cable Type Function From Code Emitter BSRSA RKT5-612/XX 5 Pin Quick Disconnect Terminal X2 " Brown +24VDC " White OV DC " Blue Test Out 3} Jumper 3 to 4, if not used No Connection "...

  • Page 49: Appendix B: Bsrua-2 Interface Unit

    It status (for channel 1 and channel 2) is “on” and the interfaces either one or two GS-120 light curtains with redundant output safety relays are in the “on” state or the protected machine’s controls.
  • Page 50 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems cabling between the GS-120 Series emitter and receiver units and the BSRU-2A controller. Be sure to observe the color coding shown to assure proper operation. MOUNT ON TOP HAT DIN RAIL...
  • Page 51 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems FUSES TECHNICAL SPECIFICATIONS The BSRUA-2 is equipped with two fuses, F1 and F2. Both fuses are located on the top of the Din Rail enclosure. These fuses are secured with a spring-...
  • Page 52 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems Redundant Safety Outputs DC Input Power +24V DC Output 1 OV DC Output 2 AC Power Input Live Test Inputs (if used) Ground Neutral FOR AC POWER 110VAC: Jumper 29 to 31 and 30 to 32...
  • Page 53 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems B Series B Series Emitter #1 Receiver #1 1 2 3 4 5 6 1 2 3 WH BN SHIELD BN WH BU BK GY 9 14 15 BSRUA-2 Controller BSRUA-2 Controller Wiring Diagram for ONE Sensing Unit Configuration Figure 55 –...
  • Page 54 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems COLOR CABLE # CABLE TYPE FUNCTION FROM CODE Emitter RKT5-612/XX BSRUA-2 5 Pin Quick Disconnect " Brown +24V D.C. " White OV D.C. 3} Jumper 3 to 4, if not used "...
  • Page 55 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems TAPESWITCH CORPORATION Phone: 631-630-0442 100 Schmitt Boulevard Fax: 631-630-0454 Farmingdale, New York 11735 www.tapeswitch.com...
  • Page 56 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems COLOR CABLE # CABLE TYPE FUNCTION FROM CODE Emitter #1 RKT5-612/XX BSRUA-2 5 Pin Quick Disconnect " Brown +24V D.C. " White OV D.C. " Blue Test Out No Connection...

  • Page 57: Appendix C: Srub Interface Unit

    The SRUB interface can be configured for either a manual (latched) reset or and automatic reset. In the • If one of the output signals from the GS-120 light manual reset mode, the safety outputs will go to the “off”...
  • Page 58 (WRL) and give the proper terminal numbers and their associated functions for the cabling between the GS-120 Series emitter and receiver units and the SRUB controller. All connections between the SRUB and the light curtain (emitter and receiver) must be made with the proper emitter and receiver cables (order separately).
  • Page 59 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems MONITOR INPUT TECHNICAL SPECIFICATIONS (SRUB) (Manual Reset Mode ONLY) The SRUB interface unit provides a machine monitor input. This monitor input receives a closed contact from Operating voltage 24 VDC at +/- 10% the machine’s control circuit.
  • Page 60 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems +24V DC Output 1 OV DC Output +24V DC Power Input Output 2 Auxilary Output Redundant (non-safety) Safety Outputs Open on External Fault External Reset Monitor Input (if used) Manual Operation ONLY...
  • Page 61 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems B Series Receiver Unit B Series Emitter Unit Power Supply 24V DC Test input if required Fuse 2A Reset A1(+) SRUB A2(-) Safety outputs to machine control circuit Figure 62 –Light Curtain to SRUB Interconnection Diagram...
  • Page 62 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems COLOR CABLE # CABLE TYPE FUNCTION FROM CODE Emitter 5 Pin +24V DC RKT5-612/XX Quick Disconnect Power Supply Molded/Pre-wired " Brown +24V DC +24V DC " White OV DC OV DC TWIST PAIR "...

  • Page 63: Appendix D: Srus Interface Unit

    Tapeswitch SRUS interface control units are designed In manual or auto reset mode, reset will be prevented to be used with GS-120 Light curtains to form a while the light curtain is obstructed, if there is a fault in complete safety system. Full system installation the reset circuit or if the two output relays are in instructions are supplied with the light curtains.
  • Page 64 4.2.2 LIGHT CURTAIN CONNECTION Connect the fail-safe PNP inputs from the GS-120 light curtain terminals 4 & 5 (cable colors yellow & grey) to terminals S12 & S22, as shown in Figure 67.
  • Page 65 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems The diagram shows manual reset function with the GS-120 guard. For automatic reset put a link between the contacts and an additional link between Figure 67 – SRUS Connection Details Figure 68 –...
  • Page 66 Release 7/2009 Ver. 1.0 Technical Manual: GS-120 Light Curtain Systems TECHNICAL SPECIFICATION Operating Voltage 24 Vdc +/- 10% Power Consumption approx. 2.5 VA Response Time < 30ms Temperature Range: Operating -25ºC to +55ºC Reset Function Manual or Auto Contact Configuration...

  • Page 67: Appendix E: C6 Multifunction Interface Controller

    120 Light Curtains and/or 1 to 6 other sensing devices. also has non-safety monitor output relays for each zone. It provides the necessary power to the GS-120 emitter They are Form C (normally-open, common, normally- and receiver units, and monitors the output signals. In closed) contact arrangements.

  • Page 68: Appendix F: Gdc-1 24 Vdc Power Supply

    The GDC-1 power supply converts an ac voltage input present. The +24 Vdc output voltage is adjustable with to +24 Vdc, which can be used to power a GS-120 light a small Philip’s head screwdriver. The output voltage curtain (emitter and receiver) and an SRUB Controller.

  • Page 69: Appendix G: Lat Laser Alignment Tool

    It is particularly useful for long range installations and installations requiring mirrors. The Laser Alignment Tool simply snaps into one of the GS-120 sensing units (emitter or receiver). See Figure 73. It projects a beam of light across the sensing field and places a targeting dot on the (emitter or receiver).

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