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SRK 96

Protective retro-reflective photoelectric sensor

201

9/08/02 6070

90-03



reserve the righ

t to make

tech

nical changes

S A F E I M P L E M E N T A T I O N A N D O P E R A T I O N
O r i g i n a l o p e r a t i n g i n s t r u c t i o n s

Содержание SRK 96

Страница 1: ...tro reflective photoelectric sensor 2019 08 02 607090 03 We reserve the right to make technical changes S A F E I M P L E M E N T A T I O N A N D O P E R A T I O N O r i g i n a l o p e r a t i n g i n s t r u c t i o n s ...

Страница 2: ...h the symbol Notes on the safety of laser devices are marked with the symbol These connecting and operating instructions must be kept in a safe place It must be available during the mission time of the SRK 96 protective retro reflective photoelectric sensors Leuze electronic GmbH Co KG is not liable for damages caused by improper use Knowledge of these connecting and operating instructions is cons...

Страница 3: ...ations with type 2 electro sensitive protective equipment 12 2 6 Safety standards 12 2 7 Areas of application 13 2 8 Laser safety notices 13 3 Function 15 3 1 System description 15 3 2 Description of functions of SRK 96 15 3 3 Testing of SRK 96 16 3 4 Functional safety 17 4 Mounting and commissioning 19 4 1 Components of the safety system 19 4 2 Integration in machine control 19 4 3 Display elemen...

Страница 4: ...Table of contents 4 SRK 96 Leuze electronic GERMAN ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS ...

Страница 5: ...erson is exposed to a dangerous situation EN IEC 61496 1 1 3 Definition of terms Electro sensitive protective equipment ESPE An assembly of parts and or components that work together to provide access protection or presence detection and include at least the following A sensor unit Control monitoring components Output switching elements AOPD Type 2 EN IEC 61496 1 describes various types of active ...

Страница 6: ...ne and a change in the actuation mode of the machine Operating modes include Jog Single stroke Automatic Actuation modes include Foot control Two hand control Single cycle or two cycle triggering by the sensor unit of the ESPE 1 4 Selection of optoelectronic protective devices The following strategy is to be applied iterative process 1 Determination of the protected area 2 Determination of the pro...

Страница 7: ...ggestions shown in this manual have been tested with utmost care The relevant standards and regulations are adhered to if the shown components and appropri ate wiring are used Residual risks remain if the suggested wiring concept is not adhered to and as a result the connected safety relevant components or protective devices are not or are inadequately integrated into the safety circuit relevant s...

Страница 8: ...egulations and safety rules Ordinance on Industrial Safety and Health and employment protection act Device Safety Act Note For safety related information you may also contact local authorities e g industrial inspectorate employer s liability insurance association labor inspectorate occupational safety and health authority DANGER Risk of death if start restart is operated unintentionally The safety...

Страница 9: ... also voids all warranty claims against the manufacturer of the safety sensor The safety sensor must be tested regularly by competent personnel The safety sensor must be exchanged after a maximum of 20 years Repairs or the exchange of wear parts do not extend the mission time Electrical work must be carried out by a certified electrician Only competent persons may configure and change the protecti...

Страница 10: ...tion Specialist knowledge and experience needed for the safe and correct electrical connection as well as safe integration of the safety sensor in the safety related control system Operation and maintenance Specialist knowledge and experience needed for the regular inspection and cleaning of the safety sensor following instruction by the person responsible Servicing Specialist knowledge and experi...

Страница 11: ...mation to the operating company Adhering to all regulations and directives for the safe commissioning of the machine The operator of the machine is responsible for Instructing the operating personnel Maintaining the safe operation of the machine Adhering to all regulations and directives for labor protection and safety at work Regular testing by competent personnel 2 4 Exemption of liability Leuze...

Страница 12: ...ity of the protective function is higher the shorter the test periods are Support is available here through the organizations responsible for machine safety such as the technical expert committees of the employer s liability insurance associations Optimum type 2 functional reliability is attained with the intelligent modular MSI safety interface system among others or a test monitoring unit from L...

Страница 13: ...s doors and gates Storage equipment and devices Textile machinery Food processing equipment Packaging machinery Meat processing equipment Machinery in the chemical rubber and plastics industries 2 8 Laser safety notices CLASS 1 LASER PRODUCT The device satisfies the requirements of IEC 60825 1 2014 EN 60825 1 2014 for a product of laser class 1 Complies with 21 CFR 1040 10 except for conformance w...

Страница 14: ...y be required to minimize the impact of ambient light on the electro sensitive protective equipment Welding sparks or warning lights e g from forklifts passing by may impact the fault free function of the protective device Figure 2 8 1 Laser aperture and laser warning sign A Laser aperture B Laser warning sign A B ...

Страница 15: ... cyclically monitors the functionality of the connected protective retro reflective photoelectric sensor every two seconds 3 2 Description of functions of SRK 96 The SRK 96 protective retro reflective photoelectric sensor is a single lens laser photo electric sensor The light beams transmitted by the transmitter are incident on a reflector unit which is mounted stationary on the opposite side of t...

Страница 16: ...ce the voltage on the input exceeds 8 V again the switching output switches back on after approx 2 7 ms When connected to an MSI TR1B or MSI TSB testing is automatically enabled monitored and evaluated by the test monitoring unit The output safety circuit of the test monitoring unit remains switched on if the test was successful Attention No more than three devices in series may be connected to a ...

Страница 17: ...r three sensors are connected The maximum reaction time remains at 80 ms The type of testing undertaken by the MSI TSB evaluation unit does not impact the reaction time when two or three sensors are connected The maximum reaction time remains at 620 ms When cyclical testing is otherwise produced please observe the requirements of EN IEC 61496 1 type 2 and EN ISO 13849 1 1x SRK96 MSI TR1B Max react...

Страница 18: ... the test impulse of the evaluation unit must be selected to ensure that the maximum sensor OFF time of an SRK 96 does not exceed 90 ms Sensor response time The response time of the sensor system depends on the type and number of photoelectric sensors The response time must be monitored to ensure that the cycle time of the testing is complied with see DIN EN ISO 13849 1 2015 The SRK 96 does not te...

Страница 19: ... is available for all subsystems of the ESPE This means that validation in accordance with EN IEC 61496 1 is no longer required as this was already undertaken by the manufacturer and the inspection body Depending on the integration it may be necessary to use contactor monitoring or a start restart interlock These functions are already integrated in the MSI TR1B and MSI TSB devices 4 3 Display elem...

Страница 20: ... source is not within the direct beam path During installation please make sure that no strongly reflective surfaces or standard reflectors are within the immediate vicinity of the PTKS reflector Attention The system will not function if the reflector is mounted in the wrong direction Figure 4 4 1 Reflector alignment 90 5 Correct alignment Incorrect alignment PTKS 50x50 Alignment via slotted hole ...

Страница 21: ... aligning the SRK 96 to the PTKS reflector the yellow LED on the SRK 96 is illuminated the horizontal pitch of the light axis must be checked The reflector mounting surface must be at a right angle to the light axis see fig 4 4 1 The valid standards and regulations must be observed when mounting protective photo electric sensors Note To ensure that the entire safety system works properly you must ...

Страница 22: ...wing standards specify calculation formulas EN 13855 The positioning of protective devices in respect of approach speeds of parts of the human body mounting situation and safety distances EN IEC 61496 2 Active optoelectronic protective devices distance of the reflective surfaces deflecting mirrors Calculating the safety distance General formula for calculating the safety distance S of an optoelect...

Страница 23: ...55 Calculation example A machine with a stopping time of 500 ms and safeguarding with the SRK 96 safety sensor and a safety relay MSI TR1B safety interface is assumed This results in S 1600 mm s ti tm 850 mm S mm Safety distance ti s Response time of the safety interface device tm s Stopping time of the machine S K ti tm C K mm s 1600 mm s ti s 80 ms tm s 500 ms C mm 850 mm S mm 1600 mm s x 0 580 ...

Страница 24: ...according to Chapter 6 3 If the protective retro reflective photoelectric sensors are arranged in parallel further measures for the prevention of mutual interference are required Beam distances must be selected according to table 4 4 1 The mounting brackets of the protective retro reflective photoelectric sensors must be secured against turning Figure 4 4 4 Beam direction with multi axis arrangeme...

Страница 25: ...iver In this case interruption of the protective field is not detected Determine the minimum distance a see Figure 4 4 5 Make certain that all reflective surfaces are the necessary minimum distance away from the protective field according to IEC EN 61496 2 see figures 4 4 6 and 4 4 7 Check that reflective surfaces do not impair the detection capability of the safety sensor before start up and at a...

Страница 26: ...d width up to 10 m a Required minimum distance to reflective surfaces mm b Protective field width m Figure 4 4 7 Minimum distance to reflective surfaces as a function of the protective field width a Required minimum distance to reflective surfaces mm b Protective field width m a 900 200 800 300 400 600 500 700 3 5 0 5 10 b 262 a 500 3500 1000 1500 2500 2000 3000 3 20 40 60 70 b 262 10 0 5 30 50 ...

Страница 27: ...ion diagrams below The activation input terminal 4 at plug connection PIN 2 is active when a DC voltage of 8 V is applied The transmitter is now working and emits visible red light If the activation input drops below a DC voltage of 2 V the internal test of the SRK 96 is triggered The activation input is normally controlled by the test monitoring circuit e g MSI TR1B or MSI TSB Laying cables Lay a...

Страница 28: ...ote No more than three devices in series may be connected to a tester Figure 5 1 2 Connection of SRK 96 with MSI T 0V Var B Var A 24V State Error MSI T RES reset Error active Start w o RES K1 K2 5 A3 6 14 15 22 21 13 7 8 30 32 24 29 31 23 K2 K1 K1 K2 A1 A2 K1 A1 A2 K2 1 2 1 2 16 0V 24V PE L L 24V 0V PE L L Activ Activ Activ SRK 96 SRK 96 SRK 96 ...

Страница 29: ...gular testing by competent personnel The reliable interaction of safety sensor and machine must be periodically tested in order to detect changes to the machine or impermissible tampering with the safety sensor Have all tests performed by competent personnel Observe the nationally and internationally applicable regulations and the time periods specified therein Test the effectiveness of the safety...

Страница 30: ...e 2 0 5 6 m With reflector PTKS 50x50 preferred type Light source Red light laser diode Wavelength 650 nm Detection capability resolution 50 mm Max power peak 12 mW Pulse duration 10 µs Laser class 1 in acc with IEC 60825 1 2014 EN 60825 1 2014 Time behavior Switching frequency 100Hz Response time 12 ms Readiness delay 250 ms Electrical data Operating voltage UB 10 30VDC incl residual ripple Resid...

Страница 31: ... circuit 3 1 2 3 4 VDE protection class 4 II all insulated Air humidity Humidity class G in accordance with IEC 68 part 2 3 Storage temperature 30 C 60 C Degree of protection IP 67 Impact resistance Semi sine 30 gn 11 ms VDE 0660 T 208 Vibration resistance 10 55Hz max 7 5 gn VDE 0660 T 208 EMI EMC In acc with EN IEC 61496 1 Additional functions Activation input active inactive 8V 2V Input resistan...

Страница 32: ...DS 7 3 Dimensioned drawings Figure 7 3 1 SRK 96 dimensioned drawing A Green indicator diode B Yellow indicator diode C Transmitter receiver D Optical axis E Device plug M12 F Screwed cable gland M16x1 5 for Ø 5 10 mm G Countersinking for SK nut M5 4 2 deep H Connection terminals I Cable entry ...

Страница 33: ...nical data Leuze electronic SRK 96 33 TNT 35 7 24V DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS Figure 7 3 2 Dimensioned drawing of PTKS reflectors PTKS 20x40 PTKS 50x50 preferred type PTKS 100x100 ...

Страница 34: ...Technical data 34 SRK 96 Leuze electronic DEUTSCH ENGLISH FRANÇAIS ITALIANO ESPAÑOL NEDERLANDS ...

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