Operating Instructions Non-Contact Safety Switch CES
Contents
1. Unin 24 V 10 SPS ha PLC ol jo fo 5 x 0 34 mm i CESAR Dn CESAR n 1 CESAR 1 n lu MA 1 m Max number of Possible output current per channel Max cable length from the last switch switches OA OB to the control system 10 150 25 100 5 50 80 100 50 200 25 10 120 25 90 6 50 70 100 50 200 25 10 70 25 60 10 50 50 100 40 200 25 11 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Determining cable lengths using the example table Example 6 switches are to be used in series Cabling with a length of 40 m is routed from a safety relay in the control cabinet to the last switch 6 Cables with a length of 20 m each are connected between the individual CES AR safety switches lox 140 m Y 40m 5x20m E gt gt 20m u min 19 2 V Vf Sicherheits Des SIS des Ss relais i min 75 mA PS Safety Relay GF lo al to iol lo ol lo ol lo jo jo E jo E CESAR 6 CESAR 5 CESAR 4 CESAR 3 CESAR 2 CESAR 4 1 Figure 1 Circuit example with six CES AR A safety rela2. DC 24V o gt a E r AL 13 215158 3 3 2 Kl aI NT MO t Loy wo re oo u E ru AC M12 plug connector H 8 pin CES AR 1 m4 M M2 o N gt GND Figure 4 Example of incorrect connection 15 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Important Connection of several CES AR C in a switch chain An AR switch chain may contain a maximum of 20 safety switches In the estimation of the PL for the overall system a maximum value of 100 years can be assumed for the MTTF according to the limit value in EN ISO 13849 1 2008 section 4 5 2 This corresponds to a minimum value for the PFH of 2 47x10 h When up to 11 devices are connected in series these limit values can be assumed for the entire switch chain as a subsystem As a subsystem this Switch chain achieves PL e In the case of series connection of more than 11 devices the PFH can be calculated according to one of the stated methods in EN ISO 13849 1 2008 section 4 5 1 gt If the simplified method according to section 6 3 of EN ISO 13849 2008 12 is used for validation the Performance Level PL might be reduced when more than 11 devices are connected in series The series connection is shown here based on the example of the version with plug connectors M12 The switches are connected one behind the other with the aid of pre assembled connection cables and Y distributors If a sa
3. 30 01 2 safety screws M5 x 10 included Active face Active face 27 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Switching distances Operating distance for center offset m O only in conjunction with actuator CES A BPA on surface mounting Parameter Value Unit min typ max Switch on distance 22 Assured switch on distance s 18 mm Switching hysteresis 1 2 Assured switch off distance s 58 1 On surface mounting on aluminum in a non metallic environment the typical switching distance increases to 30 mm Typical operating distance only in conjunction with actuator CES A BPA on surface mounting For a side approach direction for the actuator and read head a minimum distance of s 6 mm must be maintained so that the operating distance of the side lobes is not entered 28 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Technical data for actuator CES A BRN Parameter Value Unit min typ max Housing material PPS Dimensions 80x40x15 mm Weight 0 06 kg Ambient temperature 25 70 C Degree of protection IP 67 acc to EN IEC 60529 Installation position Active face opposite read head Power supply Inductive via read head Dimension drawing 40 10
4. Actuator BRN 80 mm x 40 mm 100251 You will find further connection material in particular for series connection in the current Non Contact Safety System CES catalog at www euchner de Inspection and service Warning Note Loss of the safety function because of damage to the system In case of damage the related component must be replaced completely Only accessories or spare parts that can be ordered from EUCHNER may be replaced Regular inspection of the following is necessary to ensure trouble free long term operation Check the switching function see section Functional check Check the secure fastening of the devices and the connections Check for soiling No servicing is required repairs to the device are only allowed to be made by the manufacturer The year of manufacture can be seen in the lower right corner of the rating plate The current version number in the format V X X X can also be found on the device The safety door must be re adjusted when the device indicates that the actuator is in the limit range 31 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Service If service support is required please contact EUCHNER GmbH Co KG Kohlhammerstra e 16 D 70771 Leinfelden Echterdingen Service telephone 49 711 7597 500 E mail info euchner de Internet www euchner de 32 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER
5. 1 2008 section 4 5 2 MTTF max 100 years the employers liability insurance association certifies a PFH of max 2 47 x 10 22 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Typical system times The specified times are maximum values for AR switch chains with 20 devices Individual devices have shorter system times Ready delay After switching on the unit carries out a self test for 8 s The system is ready for operation only after this time Switch on time of safety outputs The max reaction time from the moment when the actuator is at the operating distance safety door closed to the moment when the safety outputs switch on T is 400 ms Simultaneity monitoring safety inputs IA IB If the safety inputs have differ ent switching states for longer than 150 ms the safety outputs OA OB will be switched off Risk time according to EN 60947 5 3 If an actuator moves outside the op erating distance the safety outputs OA and OB are deactivated after a maximum of 360 ms Difference time The safety outputs OA and OB switch with a slight time offset They have the same signal state at the latest after a difference time of 10 ms Clock pulses at the safety outputs The device generates its own clock signal on the output lines OA OB A downstream control system must tolerate these pulses which may have a length of up to 1 ms This can usually be set up in the control systems by parameter assignment
6. AH Lxx CES AP CL2 CH Lxx CES AP CR2 CH Lxx CES AP C01 CH SA LI a b c d ET 12084 CES AR C01 AH SA CES AR C01 CH SA 1 1 a b c d ET 12084 CES AR C01 EH SA CES AR CL2 AH SA CES AR CR2 AH SA CES AR CL2 CH SA CES AR CR2 CH SA CES AR CL2 AH SG CES AR CR2 AH SG LI abed ET 12066 CES AR CL2 CH SG y UNS CES AR CR2 CH SG CES AR CL2 AH Lxx CES AR CR2 AH Lxx CES AR CL2 CH Lxx CES AR CR2 CH Lxx 27 05 2013 NG MS Blatt Sheet Page Pagina P gina 1 EUCHNER GmbH Co KG Kohlhammerstra e 16 70771 Leinfelden Echterdingen Tel 49 711 7597 0 Fax 49 711 753316 www euchner de info euchner de 33 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER More than safety CE Bet tiger CES A BLN L2 Actuator CES A BLN R2 lH a b c d ET 12056 Actionneur CES A BLN U2 ET 12066 Azionatore CES A BDN 06 Actuador CES A BBA CES A BCA CES A BPA ET 12084 CES A BDA 20 LH a b c d ET 10147 CES A BRB CES A BRN Benannte Stelle NB 0340 Notified Body DGUV Test Pr f und Zertifizierungsstelle Fachausschuss Elektrotechnik Organisme notifi Gustav Heinemann Ufer 130 Sede indicata 50968 K ln Entidad citada Germany Bezeichnung der Sicherheitsbauteile Type Richtlinie Normen Pr fbericht Description of safety components Type Directives Standards Test report Description des composants s curit Type Directive Normes Rapport du test Descrizione dei componenti di sicurezza Tipo Direttiva Norma Rapporto di prov
7. CO1 CH SA translation of the original operating instructions Copyright EUCHNER GmbH Co KG 10 2013 Subject to technical modifications no responsibility is ac cepted for the accuracy of this information EUCHNER
8. download the operating instructions from www EUCHNER de Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Function The device complies with the following safety requirements Category 4 PLe according to EN ISO 13849 1 gt Redundant design of the circuit in the unit with self monitoring This means that the safety system still functions even if an internal component fails The switch state of the semiconductor outputs is continuously monitored inter nally Short circuit detection at the safety outputs by pulse signals The following switch on condition applies to safety outputs OA and OB see also System status table and the section Typical system times Safety guard closed Both safety outputs IA and IB must be on The system consists of the following components coded actuator transponder and switch Every EUCHNER actuator supplied has an electronic coding unique coding that is read by the read head Only if a correct coding is detected does the system accept the actuator The code in an actuator cannot be reprogrammed Unlike systems with unique code detection on the CES AR CO1 CH SA a specific code is not polled but instead it is only checked whether the actuator is of a type that can be detected by the system multicode detection There is no exact com parison of the actuator code with the code defined in the safety switch unique code detection The safety switch is fastened t
9. must not start automatically The green STATE LED illuminates continuously 3 Enable operation in the control system 4 Open the safety guard The machine must switch off and it must not be possible to start it as long as the safety guard is open The green LED STATE flashes at regular intervals Repeat steps 2 4 for each safety guard 20 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER System status table LED indicator a output o o S 2 E Operating mode 3 2 9 State 5 pm E Ei T BO E 35532 E lt IB 00 2 a 10 Hz Self test x off e 8 5 O Selftest after power up N i closed on E O Normal operation door closed flashes closed on W quickly Normal operation door closed actuator in limit range Re adjust door V 1 1 2 or higher Normal operation 2 Hz dosed off KI 1 xin o Norma operation door closed preceding device in the switch chain signals door open only with 4M verse series connection open off e 1x O Normal operation door open X off ee 2x gt Input fault e g missing test pulses illogical switch state from previous switch in the switch chain closed off 3 3x lt Defective actuator e g fault in code or code not readable DEES X of 2X 4x gt C ee loss of switching ability X off xe 5x cc Internal fault e g component faulty data error X off X X Internal fault with door fault Oo L
10. temperature 25 70 C Degree of protection acc to EN IEC 60529 IP67 P69K Installation position Active face opposite read head Power supply Inductive via read head Dimension drawing 42 12 N oo Q Q CES AB 071840 Active face 4 6 Active face 25 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Switching distances Operating distance for center offset m O only in combination with CES A BBA actuator Parameter Value Unit min typ max Switch on distance 18 Assured switch on distance s 15 Switching hysteresis 1 1 3 ux Assured switch off distance s 45 1 The values apply for surface installation of the actuator Typical operating distance only in combination with CES A BBA actuator For a side approach direction for the actuator and safety switch a minimum distance of s 4 mm must be maintained so that the operating distance of the side lobes is not entered Figure 7 Typical operating distance 26 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Technical data for actuator CES A BPA Parameter Value Unit min typ max Housing material PBT Dimensions 40x40x10 mm Weight 0 025 kg Ambient temperature 25 70 C EE P67 P69K Installation position Active face opposite read head Power supply Inductive via read head Dimension drawing 0 40 0 25
11. use after every fault Independent of these checks the safe function of the safety guard should be checked at suitable intervals as part of the maintenance schedule Danger of fatal injury in the event of incorrect connection or incorrect use Safety switches must not be bypassed bridging of contacts turned away removed or otherwise rendered ineffective On this topic pay attention in particular to the measures for reducing the pos sibility of bypassing from EN 1088 1995 A2 2008 section 5 7 The device is only allowed to be installed and placed in operation by authorized personnel who are familiar with the correct handling of safety components who are familiar with the applicable EMC regulations who are familiar with the applicable regulations on health and safety and ac cident prevention who have read and understood the operating instructions Risk of damage to equipment as a result of incorrect installation Safety switches must not be used as a mechanical end stop Fit an additional end stop for the movable part of the safety guard Prior to use read the operating instructions and keep these in a safe place Ensure that the operating instructions are always available during mounting setup and servicing work EUCHNER cannot provide any warranty in relation to the readability of the CD for the storage period required For this reason you should archive a printed copy of the operating instructions You can
12. 3 5 5 gt A I e oo Y y i 4 Active face Active face 29 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Switching distances Operating distance for center offset m O only in combination with actuator CES A BRN Parameter Value Unit min typ max Switch on distance 27 Assured switch on distance s 20 Switching hysteresis 1 3 gh Assured switch off distance s 75 1 The values apply for surface installation of the actuator on steel Typical operating distance only in conjunction with actuator CES A BRN on surface mounting on steel For a side approach direction for the actuator and read head a minimum distance of s 6 mm must be maintained so that the operating distance of the side lobes is not entered Figure 9 Typical operating distance 30 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Ordering information and accessories Tip Designation Version Order No CES AR CO1 CH SA multicode 098942 Bridging plug M12 4 pin plug 097645 Y distributor M12 1x8 pin 2x5 pin 097627 Y distributor with connecting cable M12 1x8 pin 2x5 pin length 200 mm 111696 M12 1x8 pin 2x5 pin length 1 000 mm 112395 Connection cable PVC 8 core M12 8 pin 5 m 100177 fying lead M12 8pin 10 m 100178 M12 8 pin 20 m 100179 Actuator BBA 42 mm x 25 mm 071840 Actuator BPA 40 mm x 40 mm 098775
13. Declaration of conformity More than safety d X EUCHNER EUCHNER EUCHNER GmbH Co KG EG Konformit tserkl rung Original DE 2 Kohlhammerstra e 16 EC Decl ration of Conformity Translation EN 70771 Leinfelden Echterdingen CE D claration de Conformit Traduction FR Germany CE Dichiarazione di conformit Traduzione IT Q CE Declaraci n de Conformidad Traducci n ES gt o Die nachfolgend aufgef hrten Produkte sind konform mit den Anforderungen der folgenden Richtlinien falls zutreffend The beneath listed products are in conformity with the requirements of the following directives if applicable Les produits mentionn s ci dessous sont conformes aux exigences impos es par les directives suivantes si valable 1 prodotti sotto elencati sono conformi alle direttive sotto riportate dove applicabili Los productos listados a continuaci n son conforme a los requisitos de las siguientes directivas si fueran aplicables E 2006 42 EG Maschinenrichtlinie 2006 42 EC Machinery directive 2006 42 CE Directive Machines 2006 42 CE Direttiva Macchine 2006 42 CE Directiva de m quinas Il 2004 108 EG EMV Richtlinie 2004 108 EC EMC Directive 2004 108 CE Directive de Compatibilit lectromagn tique 2004 108 CE Direttiva EMV 2004 108 CE Directiva CEM Die Schutzziele der Niederspannungsrichtlinie wurden gem Anhang Nr 1 5 1 der Maschinenrichtlinie eingehalten The safety objetives of the Low Voltage D
14. ED not illuminated c LED illuminated Key to symbols 3 10 Hz 8 s LED flashes for 8 seconds at 10 Hz ee 3x LED flashes three times and this is then repeated X Any state After the cause has been remedied faults can generally be reset by opening and closing the door If the fault is still displayed afterward use the reset function or briefly interrupt the power supply Please contact the manufacturer if the fault could not be reset after restarting Important If you do not find the displayed device status in the System status table this indi cates an internal device fault In this case you should contact the manufacturer 21 Operating Instructions Safety Switch C ES AR Co1 CH SA EUCHNER Technical data Note If a product data sheet is included with the product the information on the data sheet applies in case of discrepancies with the operating instructions Technical data for safety switch CES AR CO1 CH SA Parameter Value Unit min typ max Housing material PBT VO GF30 Dimensions According to EN 60947 5 2 Weight 0 4 kg Ambient temperature at U DC 24 V 20 55 H C Storage temperature 25 70 Degree of protection IP 67 Safety class lll Degree of contamination 3 Installation position Any Connection M12 plug connector 8 pin Operating volta
15. If parameter assignment is not possible for your control system or if shorter clock pulses are required please contact our support organization The pulses are also output when the safety outputs are switched off 23 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Dimension drawings and connector assignments Safety switch CES AR Connector assignment for safety switch CES AR 8 pin plug and Y distributor 8 pin socket Pin Function 1 IB 2 U 3 OA 4 OB 7 LEDs 5 OUT 6 IA O e 7 OV 5 8 RST Bo Soa Bridging plug 097645 Y distributor Y distributor 4 pin plug with connection cable 097627 figure similar 111696 or 112395 Socket Socket 3 4 5 231 45 8 I max 45 Length Order No I mm 111696 200 112395 1 000 Plug e Socket Socket Pin Function Pin Function 1 U 1 U Pin Function Pin Function 2 OA 2 IA 1 Us 1 U 3 OV 3 DV 2 OA 2 IA 4 OB 4 IB 3 OV 3 OV 5 RST 5 RST 4 OB 4 IB 5 RST 5 RST 24 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Technical data for actuator CES A BBA Parameter Value Unit min typ max Housing material Fortron reinforced thermoplastic fully encapsulated Dimensions 42x25x12 mm Weight 0 02 kg Ambient
16. Operating Instructions Non Contact Safety Switch CES AR Co1 CH SA Multicode More than safety EUCHNER Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Contents Correct use Possible combinations for CES components Exclusion of liability and warranty General safety instructions Function Changing the approach direction Mounting Electrical connection Safety in case of faults Fuse protection for power supply Requirements for connection cables Maximum cable lengths Connector assignment of safety switch CES AR Connection of a single CES AR C Connection of several CES AR C in a switch chain Notes on operation with safe control systems Setup LED indicators Initial setup Functional check System status table Technical data Technical data for safety switch CES AR CO1 CH SA Technical data for actuator CES A BBA Technical data for actuator CES A BPA Technical data for actuator CES A BRN Ordering information and accessories Inspection and service Service Declaration of conformity Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Correct use Important The Coded Electronic Safety switches series CES are safety devices for monitor ing movable safety guards In combination with a separating safety guard and the machine control this safety component prevents dangerous machine movements from occurring while the safety guard is open A stop command is triggered i
17. Reset input red 13 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Connection of a single CES AR C If a single CES AR C is used connect the switch as shown in Figure 3 The OUT output can also be connected here to a control system as a monitoring output The switch can be reset via the RST input To do this a voltage of 24 V is applied to the RST input for at least 3 seconds The RST input must be connected to O V if it is not used Important The subsystem CES AR complies with PL e in accordance with EN 13849 1 To integrate the subsystem in a category 3 or 4 structure itis necessary to monitor the downstream load the feedback loop must be monitored These examples show only an excerpt that is relevant for connection of the CES system The example illustrated here does not show complete system planning The user is responsible for safe integration in the overall system DC 24 V O EEEEBEBE lelelztalelclel M12 plug connector 8 pin CESARC 1 GND Figure 3 Connection example for a single CES AR C 14 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Warning In the event of a fault Loss of the safety function due to incorrect connection To ensure safety both safety outputs OA and OB must always be evaluated Single channel use of the safety outputs leads to a loss of the category in accordance with EN ISO 13849 1
18. a Descripci n de componentes de Typo Directivas Est ndares Informe de prueba seguridad Sicherheitsschalter CES AH C 3 LI a b c d Euchner QS PB 21 2010 Safety Switches CES AP C 1 LI a bcd Euchner QS PB 76 2010 Interrupteurs de s curit i Eos A LL CES I AP C04 UQS 116783 Finecorsa di sicurezza CES I AR COA m a b c d UQS 119733 Interruptores de seguridad CES FD AP LU a bcd UQS 116784 Auswerteger t Safety Unit Analyseur CES AR AES 12 LU a b c d Euchner PB 53 2007 Centralina Unidad de evaluaci n Leinfelden Mai 2013 EUCHNER GmbH Co KG Kohlhammerstra e 16 70771 Leinfelden Echterdingen Germany dins EUCHNER _ A i Dipl Ing Giefan hn ch ftsf hrer Managing Director G rant d affaires Direttore Generale Director Gerente AL 27 05 2013 NG MS Blatt Sheet Page Pagina P gina 2 EUCHNER GmbH Co KG Kohlhammerstra e 16 70771 Leinfelden Echterdingen Tel 49 711 7597 0 Fax 49 711 753316 www euchner de info euchner de Oe AS LA Duc Binh Nguyen Dokumentationsbevollm chtigter Documentation manager Responsable documentation Responsabilit della documentazione Agente documenta 34 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER 35 More than safety Euchner GmbH Co KG Kohlhammerstra e 16 D 70771 Leinfelden Echterdingen info euchner de www euchner de Edition 100713 13 10 13 Title Operating Instructions Safety Switch CES AR
19. an AR evalua tion unit Please refer to the operating instructions for the relevant AR evaluation unit for more information 16 EUCHNER Operating Instructions Safety Switch CES AR Co1 CH SA AO A eS Se aun eaa SSES al sindano Ayes syndur Ajsjes pe H peoy sio lYU3INHINI sindano Ayes s79 4aNHONA Deet peoy LJ sindano Ayeyes rb S L t 8 syndur age syndur ege 9 Deen peoy Usa I NVC Jo3nquastp A Jognquasip A J JO02MQUISIP A bnjd BugeuruuaL Jo3nquasip A Figure 5 Connection example for series connection with reset and changeover switch N ce Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Notes on operation with safe control systems Please observe the following requirements for connection to safe control systems Use a common power supply for the control system and the connected safety switches A clocked power supply must not be used for UB Tap the supply voltage directly from the power supply unit If the supply voltage is connected to a terminal of a safe control system this output must provide sufficient electrical current Always connect inputs lA and IB directly to a power supply unit or to outputs OA and OB of another EUCHNER AR device series connection Clocked s
20. dividual switch I La het lage OUT OA 0B Switch operating current 50 mA UB our Monitoring output load current max 200 mA Load current of safety outputs OA OB 2 x max 400 mA OA 0B Max current consumption of a switch chain baa ZL n Number of connected switches NX ly OA 0B our 10 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Requirements for connection cables Caution Risk of damage to equipment or malfunctions as a result of incorrect connec tion cables Use connection components and connection cables from EUCHNER On the usage of other connection components the requirements in the fol lowing table apply EUCHNER provides no warranty for safe function in case of failure to comply with these requirements Observe the following requirements with respect to the connection cables Parameter Value Unit Conductor cross section 0 34 mm R max 60 Q km C max 120 nF km L max 0 65 mH km Recommended cable type LIYY 8x or 5x 0 34 mm Maximum cable lengths Switch chains are permitted up to a maximum overall cable length of 200 m taking into account the voltage drop as a result of the cable resistance see table below with example data and case example 200 m
21. e means Pay attention to the maximum tightening torque for the read head or safety switch and actuator mountings of 1 Nm For read heads actuators made of PE HD the maximum tightening torque is only 0 5 Nm Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Electrical connection Warning The following connection options are available Separate operation Series connection with Y distributors from EUCHNER only with M12 plug con nector Series connection e g with wiring in the control cabinet Operation on an AR evaluation unit In the event of a fault Loss of the safety function due to incorrect connection Caution To ensure safety both safety outputs OA and OB must always be evaluated The monitoring output OUT or DIA must not be used as a safety output Lay the connection cables with protection to prevent the risk of short cir cuits Risk of damage to equipment or malfunctions as a result of incorrect connection Do not use a control system with pulsing or switch off the pulsing function in your control system The device generates its own clock signal on the out put lines OA OB A downstream control system must tolerate these pulses which may have a length of up to 1 ms The pulses are also output when the safety outputs are switched off Depending on the inertia of the connected device control system relay etc this can lead to short switching processes The inpu
22. f the safety guard is opened during the dangerous machine function Before safety switches are used a risk assessment must be performed on the machine e g in accordance with EN ISO 13849 1 Safety of machinery Safety related parts of control systems General principles for design EN ISO 12100 Safety of machinery General principles for design Risk as sessment and risk reduction IEC 62061 Safety of machinery Functional safety of safety related electrical electronic and programmable electronic control systems Correct use includes compliance with the relevant requirements for installation and operation for example EN ISO 13849 1 Safety of machinery Safety related parts of control systems General principles for design EN 1088 Safety of machinery Interlocking devices associated with guards Principles for design and selection EN 60204 1 Safety of machinery Electrical equipment of machines General requirements EN 60947 5 3 Specification for low voltage switchgear and controlgear Con trol circuit devices and switching elements Requirements for proximity devices with defined behavior under fault conditions The safety switch must be used only in conjunction with the designated CES ac tuators from EUCHNER On the use of different actuators EUCHNER provides no warranty for safe function Several devices are only allowed to be connected in series using devices intended for series connectio
23. fety door is opened or if a fault occurs on one of the switches the system shuts down the machine A higher level control system cannot however detect which safety door is open or on which switch a fault has occurred with this connection technology A special AR evaluation unit is required for this purpose see section Information on operation on an AR evaluation unit The series connection can also be realized via additional terminals in a control cabinet The safety outputs are permanently assigned to the respective safety inputs of the downstream switch OA must be connected to IA and OB to IB If the connections are interchanged e g OA to IB the unit will switch to fault state Always use input RST in series connections All switches in a chain can be reset at the same time with this reset input To do this a voltage of 24 V must be applied to the RST input for at least 3 seconds If input RST is not used in your application it should be connected to O V Note the following on this aspect A common signal must be used for all switches in the chain This can be a changeover switch or the output of a control system A button is not suitable because Reset must always be connected to GND during operation see switch S1 in Figure 5 Reset must always be performed simultaneously for all switches of the chain Information on operation on an AR evaluation unit Devices with version number V 1 1 2 or higher can be operated on
24. ge U reverse polar ity protected regulated residual 24 15 PELV VDC ripple lt 5 For the approval according to Qu Operation only with UL Class 2 power supply or equivalent the following applies measures Current consumption 50 mA Switching load according to A DC 24 V class 2 External fuse operating voltage 0 25 8 A Safety outputs OA OB Semiconductor outputs p switching short circuit proof Output voltage U OA U OB HIGH U OA E HIGH U OB gt V DC LOW U OA U OB 0 1 Switching current per safety output 1 400 mA Utilization category DC 13 24V 400 mA according to EN IEC 60947 5 2 Caution outputs must be protected with a free wheeling diode in case of inductive loads Off state current lt 0 25 mA Monitoring output OUT H p switching short circuit proof Qutput voltage 0 8 x Us U V DC Max load 200 mA Rated insulation voltage U 300 2 V Rated impulse withstand voltage 1 5 kV Resilience to vibration In acc with EN IEC 60947 5 2 Switching frequency 1 Hz Repeat accuracy R lt 10 EMC protection requirements In accordance with EN IEC 60947 5 3 and EN IEC 61326 3 1 Reliability values acc to EN ISO 13849 1 Category 4 Performance Level PL e PFH 2 1x10 h Mission time 20 years 1 Values at a switching current of 50 mA without taking into account the cable length 2 Tested by employers liability insuran ce association up to 75 V 3 Applying the limit value from EN ISO 13849
25. he Performance Level PL might be reduced when more than 11 devices are connected in series It is only allowed to use components that are permissible in accordance with the table below Possible combinations for CES components Actuator Safety switches E a e e S3 mo Xu EE Ds as 65 68 KE CES AR CO1 CH SA 098942 e e e Key to symbols Combination possible Note Devices with version number V 1 1 2 or higher can be operated on an AR evalua tion unit Please refer to the operating instructions for the relevant AR evaluation unit for more information Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Exclusion of liability and warranty In case of failure to comply with the conditions for correct use stated above or if the safety instructions are not followed or if any servicing is not performed as required liability will be excluded and the warranty void General safety instructions Warning Caution Important As the unique actuator codes are not evaluated the CES AR CO1 CH SA version can only be used for applications in which a hazard cannot result from possible tampering with the system Safety switches fulfill personal protection functions Incorrect installation or tamper ing can lead to fatal injuries to personnel Check the safe function of the safety guard particularly after any setup work after the replacement of a CES component after an extended period without
26. ig nals must not be present at inputs IA and IB Outputs OA and OB can be connected to the safe inputs of a control system Prerequisite The input must be suitable for clocked safety signals OSSD sig nals e g from light curtains The control system must tolerate clock pulses on the input signals This normally can be set up by parameter assignment in the control system Observe the notes of the control system manufacturer For the pulse duration of your safety switch please refer to the section Typical system times on page 23 A detailed example of connection and setting the parameters of the control system is available for many devices at www euchner de in the area Download 9 Applications CES The features of the respective device are dealt with there in greater detail 18 EUCHNER Operating Instructions Safety Switch CES AR Co1 CH SA RS a PET oq 139 43NHONA andino Ayes ndur Ayes LEX S CX WX EZX y S L c 8 9 rM onl soM vo i I NN D a EA ELL al 3ndino Majes synduy ejes t L c 8 9 S soh vo Mino B ro cR vul o Wood Dean pe y s30 4SNHONA dyno Majes syndur Majes t S L c 8 9 sol vo ol Ao Am 4 a AO Ave mme JOINQUNSIP A UJ Dean pe y 92 1 x CET on ET200 Figure 6 Connection example for mixed series connection 2 x CES and Operat
27. ing Instructions Safety Switch CES AR Co1 CH SA EUCHNER Setup Warning LED indicators ZS SE State Significance illumi N nated AN Normal operation STATE green s i gt Teach in operation or Power Up flashing Actuator in limit range V 1 1 2 or higher 9 refer to the status table for further signal functions illumi A Z Internal electronics fault DIA red nated AN Fault at the inputs outputs Initial setup 1 Apply operating voltage to the safety switch The green LED flashes quickly approx 10 Hz A self test is performed during this time approx 8 s After this the LED flashes cyclically one time and signals that it is in standby state 2 Move actuator to the read head observe distance lt S The green LED illuminates continuously and indicates the detection of the actuator Functional check After installation and any fault the safety function must be fully checked Proceed as follows Danger of fatal injury as a result of faults in installation and functional check Before carrying out the functional check make sure that there are no per sons in the danger area Observe the valid accident prevention regulations 1 Switch on operating voltage The safety switch carries out a self test The green LED STATE flashes for 8 s with 10 Hz The STATE LED then flashes at regular intervals 2 Close all safety guards The machine
28. irective comply with Annex I No 1 5 1 of the Machinery Directive Les objectifs de s curit de la Directive Basse Tension sont conformes l annexe I No 1 5 1 de la Directive Machines Gli obiettivi di sicurezza della Direttiva Bassa Tensione sono conformi a quanto riportato all allegato No 1 5 1 della Direttiva Macchine Los objetivos de seguridad de la Directiva de Bajo Voltaje cumplen con el Anexo I No 1 5 1 de la Directiva de M quinas Folgende Normen sind angewandt a EN 60947 5 3 1999 A1 2005 Following standards are used b EN 1088 1995 A2 2008 Les normes suivantes sont appliqu es es EN ISO 13849 1 2008 Vengono applicate le seguenti norme d EN ISO 13849 2 2012 Se utilizan los siguientes est ndares Bezeichnung der Sicherheitsbauteile Type Richtlinie Normen Zertifikats Nr Description of safety components Type Directives Standards No of certificate Description des composants s curit Type Directive Normes Num ro du certificat Descrizione dei componenti di sicurezza Tipo Direttiva Norme Numero del certificato Descripci n de componentes de Typo Directivas Est ndares N mero del certificado seguridad CES AP CL2 AH SF CES AP CR2 AH SF CES AP CL2 CH SF Sicherheitsschalter CES AP CR2 CH SF Safety Switches CES AP CL2 AH SB Interrupteurs de s curit CES AP CR2 AH SB 1H a b c d ET 12056 Finecorsa di sicurezza Interruptores de seguridad CES AP CL2 CH SB CES AP CR2 CH SB CES AP CL2 AH Lxx CES AP CR2
29. n with the CES AR Check the operating instructions for the related device A combination of other CES devices or devices from other manu facturers is not allowed A maximum of 20 safety switches are allowed to be operated in a switch chain The user is responsible for the integration of the device into a safe overall system For this purpose the overall system must be validated e g in ac cordance with EN ISO 13849 2 Correct use requires observing the permissible operating parameters see Technical data gt If a product data sheet is included with the product the information on the data sheet applies in case of discrepancies with the operating instructions n the estimation of the PL for the overall system a maximum value of 100 years can be assumed for the MTTF according to the limit value in EN ISO 13849 1 2008 section 4 5 2 This corresponds to a minimum value for the PFH of 2 47x108 h When up to 11 devices are connected in series these limit values can be assumed for the entire switch chain as a subsystem As a subsystem this switch chain achieves PL e Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Important Inthe case of series connection of more than 11 devices the PFH can be calculated according to one of the stated methods in EN ISO 13849 1 2008 section 4 5 1 gt If the simplified method according to section 6 3 of EN ISO 13849 2008 12 is used for validation t
30. o the fixed part of the safety guard The actuator attached to the movable part of the safety guard is moved towards the read head fitted in the safety switch by closing the door When the switch on distance is reached power is supplied to the actuator by the read head by induc tion and data can be transferred If a permissible code is detected the safety outputs are released Due to the combination of dynamic polling of the actuator and the redundant diverse design of the safety electronics with the two feedback safety outputs the safety switch will enter the safe state with every detectable fault When the safety guard is opened the safety outputs switch off the safety circuit and the monitoring output OUT is switched off The state of the safety outputs is monitored internally by two microprocessors If faults are detected the safety circuit is switched off and the DIA LED illuminates In case of devices with a DIA monitoring output the output is switched on The safety switch has a redundant circuit design with self monitoring This means that the safety system is still effective even if a component fails The system is designed so that failures will not result in the loss of the safety func tion The occurrence of failures is detected by cyclic self monitoring at the latest on the next demand to close the safety contacts e g on starting If the safety door with the actuator should settle over time the actuator can drift
31. ource of interference must be installed in a separate location away from the input and output circuits for signal pro cessing The cable routing for safety circuits should be as far away as pos sible from the cables of the power circuits Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Caution Important In order to avoid EMC interference the physical environmental and operating conditions at the installation site of the device must comply with the require ments according to the standard EN 60204 1 2006 section 4 4 2 EMC Please pay attention to any interference fields in case of devices such as frequency converters or induction heating systems Observe the EMC in structions in the manuals from the respective manufacturer If the device does not appear to function when operating voltage is applied e g green STATE LED does not flash the safety switch must be returned unopened to the manufacturer Safety in case of faults The operating voltage U is reverse polarity protected The contacts OA OB are short circuit proof A short circuit between OA and OB is detected by the switch A short circuit in the cable can be excluded by laying the cable with protection Fuse protection for power supply The power supply must be provided with fuse protection depending on the number of switches and current required for the outputs The following rules apply Max current consumption of an in
32. out of the read head operating distance The device recognizes this and indicates that the actuator is in the limit range function available for V 1 1 2 and higher This allows the safety door to be readjusted in time Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Changing the approach direction Caution Risk of damage to equipment as a result of trapped cables Make sure that the cables are not trapped or torn off when the approach direction is changed The active face of the read head can be adjusted in 5 directions It is marked by the red face The plug connector can be realigned in 45 steps to change the direction of the cable outlet when using elbow connectors 1 Remove the top part of the mounting base and push the bottom part of the mounting base off the read head 2 Unscrew the screws on the fastening bracket 3 Undo the read head from the fastening bracket and tilt the read head forward by 90 The active face is now pointing downward 4 Hold the fastening bracket tight and turn the read head by 180 5 Re tighten the screws for the read head on the fastening bracket Tightening torque 0 6 Nm 6 Turn the read head in 90 steps until the desired approach direction is reached Change the alignment of the plug connector if necessary 7 Push the read head onto the bottom part of the mounting base and re assemble the mounting base 4 x 90 90 180 270 Opera
33. ting Instructions Safety Switch CES AR Co1 CH SA EUCHNER Mounting Important From the assured switch off distance S down When mounting several safety switches observe the stipulated minimum distance to avoid mutual interference the safety outputs are safely shut ar min 80mm gt If the actuator is installed flush the switching distance changes as a function of the installation depth and the safety guard material Flush mounting Surface mounting i a _ Operating distance Operating distance Note the following points Actuator and safety switch must be easily accessible for inspection and re placement The switching operation must only be triggered by the specific actuator desig nated for this purpose Actuator and safety switch must be fitted so that the front faces are at the minimum switch on distance 0 8 x S or closer when the safety guard is closed see section Operating distances To avoid entering the area of possible side lobes a minimum distance is to be main tained in case of a side approach direction See section Typical operating distance for the related actuator when the safety guard is open up to the distance S assured switch off dis tance a hazard is excluded the actuator is positively mounted on the safety guard e g by using the safety screws included they cannot be removed or tampered with using simpl
34. ts on an evaluation unit connected must be positive switching as the two outputs on the safety switch deliver a level of 24 V in the switched on state All the electrical connections must either be isolated from the mains supply by a safety transformer according to IEC 61558 2 6 with limited output voltage in the event of a fault or by other equivalent isolation measures PELV For use and operation as per the Ou requirements a power supply with the feature for use in class 2 circuits must be used The same requirement ap plies to the safety outputs Alternative solutions must comply with the following requirements a Electrically isolated power supply unit with a max open circuit voltage of 30 V DC and a limited current of max 8 A b Electrically isolated power supply unit in combination with fuse as per UL248 This fuse should be designed for max 3 3 A and should be integrated into the 30 V DC voltage section For use and applications as per the requirements of Ox a connection cable listed under the UL category code CYJV2 or CYJV must be used The con nection cables from EUCHNER meet these requirements The same require ment applies to the safety outputs gt All electrical outputs must have an adequate protective circuit for inductive loads The outputs must be protected with a free wheeling diode for this pur pose RC interference suppression units must not be used Power devices which are a powerful s
35. y is connected downstream which consumes 75 mA at each of the two safety inputs This operates over the whole temperature range with a voltage of 19 2 V corresponds to 24 V 20 All the relevant values can now be determined using the example table 1 Select the corresponding section in the column n max number of switches Here 6 switches 2 In column I possible output current per channel OAYOB find a current greater than or equal to 75 mA Here 100 mA Itis then possible to determine the maximum cable length from the last switch 6 to the control system from column Here a length of 50 m is permitted Result The desired cable length of 40 m is below the permitted value from the table The overall length of the switch chain I of 140 mis less than the maximum value of 200 m The planned application is therefore functional in this form 12 Operating Instructions Safety Switch CES AR Co1 CH SA EUCHNER Connector assignment of safety switch CES AR OUT Coding lug View on the connection side of the safety switch Figure 2 Connector assignment of safety switch CES AR Pin Designation Description Wire color 1 IB Enable input for channel 2 white 2 UB Power supply DC 24 V brown 3 OA Safety output channel 1 green 4 OB Safety output channel 2 yellow 5 OUT Monitoring output gray 6 IA Enable input for channel 1 pink 7 OV Ground DC O V blue 8 RST
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