Operating Instructions Safety Switch CET.-AS-...-CB
Contents
1. 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 section Technical data page 22 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 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 47 x 10 h gt If the simplified method according to section 6 3 EN ISO 13849 2008 12 is used for validation the Performance Level PL may be reduced if several devices are connected one after the other gt It is only allowed to use components that are permissible in accordance with the table below Operating Instructions Safety Switch CET AS CB EUCHNER Possible combinations for CET components Actuator Safety switch CET A BWK 50X 096327 CET AS CB Key to symbols oO Combination possible 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 liab2. cident prevention who have read and understood the operating instructions Prior to use read the operating instructions and keep it in a safe place Ensure the operating instructions is always available during mounting setup and servic ing 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 If you should lose the operating instructions you can download this documents from www EUCHNER de Operating Instructions Safety Switch CET AS CB EUCHNER Function Lift tappet Recess Transponder Spring mounted guard as locking pin r o y Function of the electronics Safety switches series CET AS permit locking of movable safety guards They meet the following safety requirements Category 3 PLe according to EN ISO 13849 1 mounting head upward Category 4 PLe according to EN ISO 13849 1 mounting head downward or horizontal The non contact safety switch CET AS consists of three components coded actua tor transponder evaluation unit and read head The evaluation unit is integrated into the switch housing with the read head Each actuator possesses a unique electronic coding and so is a unique element in the system used The code in an actuator cannot be reprogrammed Unlike systems with unique code detection on multicode devices a specific cod
3. Cat A Important Cat 1 Important Configuration in the AS Interface safety monitor see operating instructions for the AS Interface safety monitor Dual channel dependent The safety switch is configured in the AS Interface safety monitor with the AS Interface address set as follows for example dual channel dependent with or without start up test Synchronization time infinite In this mode the safety guard must be opened each time prior to restarting Dual channel conditionally dependent The safety switch is configured in the AS Interface safety monitor with the AS Interface address set as follows for example gt dual channel conditionally dependent independent In 1 The switch is monitored for a malfunction the door message must not switch before guard lock monitoring The safety guard does not have to be opened in this operating mode Safety is provided again when the guard locking is closed Dual channel independent The safety switch is configured in the AS Interface safety monitor with the AS Interface address set as follows for example dual channel independent with or without start up test Failure of a signal or function is not detected in this operating mode The safety guard does not have to be opened in this operating mode Safety is provided again when the guard locking is closed 17 Operating Instructions Safety Switch CET AS CB EUCHNER AS Interface st
4. during a power failure is higher than the risk of ineffective guard locking The guard locking operates in accordance with the open circuit current principle The lift tappet is held in locked position by electromagnetic force and released by spring force The guard locking solenoid is switched by software via AS Interface output bit DO Operating Instructions Safety Switch CET AS CB EUCHNER Closing safety guard and activating guard locking The safety door can be opened as long as the lift tappet is held in the extended position Switching the guard locking solenoid on via AS Interface output bit DO releases the lift tappet The actuator s guard locking pin can now press the lift tap pet down The safety door is locked and the solenoid monitoring contact is closed as soon as the guard locking pin is fully inserted into the recess The complete safety code sequence is sent via AS Interface input bits DO to D3 Deactivating guard locking Switching the guard locking solenoid off via AS Interface output bit DO extends the lift tappet and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle Opening safety guard Opening the safety door moves the actuator out of the operating distance The values O 0 O O are continuously sent via AS Interface input bits DO to D3 Operating Instructions Safety Switch CET AS CB EUC
5. ineffective On this topic pay attention in particular to the measures for reducing the pos sibility of bypassing according to EN 1088 1995 A2 2008 Sec 5 7 The max achievable category according to EN 13849 1 depends on the instal lation position see Technical data page 22 Caution 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 Observe the min door radii see figure below Ensure that the actuator contacts the slide in the designated area see figure below Marks on the slide specify the prescribed approach zone The prerequisite for trouble free long term operation is protection of the switch head and the actuator against penetrating foreign objects such as swarf sand and blasting shot etc The switch should be installed with the actuating head down for this purpose Cover the switch and the actuator during painting work 74 5 4mm Anfahrbereich x Approach Zone 7 i i N a eg Leit u e RS i U 1 ri f E bactharssthan Figure 2 Door radii and approach zone ul gie res 14 Operating Instructions Safety Switch CET AS CB EUCHNER Note the following points Actuator and safety switch must be easily accessible for inspection and replace ment The switching operation must onl
6. 51105 K ln Germany Sede indicata Entidad citada lt b KS luan S A Leinfelden Januar 2013 ipl Ing Stefan Euchner LA Duc Binh Nguyen Gesch ftsf hrer Dokumentationsbevollm chtigter EUCHNER GmbH Co KG Managing Director Documentation manager Kohlhammerstra e 16 Gerant d affaires Responsable documentation 70771 Leinfelden Echterdingen Direttore Generale Responsabilit della documentazione Germany Director Gerente Agente documenta 16 01 2013 NG GZ Blatt Sheet Page Pagina Pagina 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 29 More than safety Euchner GmbH Co KG KohlhammerstraBe 16 D 70771 Leinfelden Echterdingen info euchner de www euchner de Edition 112685 04 10 13 Title Operating Instructions Safety Switch CET AS CB translation of the original operating instructions Copyright EUCHNER GmbH Co KG 10 2013 Subject to technical modifications no responsibility is accepted for the accuracy of this informa tion EUCHNER
7. HNER Important Mechanical release and mechanical key release can be retrofitted gt The mechanical release is not a safety function The machine manufacturer must select and use a suitable release escape re lease emergency unlocking etc for a specific application A risk assessment appraisal is required for this purpose It may be necessary to take specifications from a product standard into account gt The mechanical key release must not be used to lock the switch during main tenance work to prevent activation of guard locking for example The correct function must be checked at regular intervals Loss of the release function due to mounting errors or damage during mounting Check the release function every time after mounting Loss of the release function due to tension on the actuator The door must not be under tension during release Please observe the notes on any enclosed data sheets The mechanical release can be used to unlock guard locking irrespective of the state of the solenoid Using mechanical release 1 Unscrew locking screw 2 Using a screwdriver turn the mechanical release by around 180 in the di rection of the arrow The lift tappet is extended and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle The safety device can be opened The mechanical release must be
8. Operating Instructions Safety Switch CET AS CB Multicode More than safety Operating Instructions Safety Switch CET AS CB EUCHNER Contents Correct use Possible combinations for CET components Exclusion of liability and warranty General safety instructions Function Function of the electronics Function of the guard locking Mechanical release and mechanical key release can be retrofitted Emergency unlocking can be retrofitted Lockout mechanism optional Changing the approach direction Mounting Electrical connection Setting the AS Interface address Control of the guard locking Configuration in the AS Interface safety monitor AS Interface status messages Setup LED indicators Initial setup Functional check System status table Technical data Technical data for safety switch CET AS CB Dimension drawing safety switch CET AS Technical data actuator CET A BWK 50X Accessories Inspection and service Service Declaration of conformity 3 4 4 5 6 6 8 Operating Instructions Safety Switch CET AS CB EUCHNER Correct use Important The safety switch CET AS is operated as a slave on the safety bus AS Interface Safety at Work and functions as an electromagnetic interlock device with guard locking In combination with a safety guard and the machine control this safety component prevents the safety guard from being opened while a dangerous ma
9. Safety Switch CET AS CB EUCHNER Inspection and service Warning Loss of the safety function because of damage to the system In case of damage the entire device must be replaced 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 page 20 Check all additional functions e g escape release lockout mechanism etc 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 Note The year of manufacture can be seen in the lower right corner of the rating plate The current version number in the format VX X X can also be found on the device 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 28 Operating Instructions Safety Switch CET AS CB EUCHNER Declaration of conformity EUCHNER More than safety EUCHNER GmbH Co KG EG Konformit tserkl rung Original DE Kohlhammerstra e 16 EC Declaration of Conformity Translation EN 5 70771 Leinfelden Echterdingen CE D claration de Conformite Tra
10. atus messages A dual LED red green displays the colors red green and yellow The following table provides assistance with troubleshooting State LED ASI Explanation green Normal operation red No data exchange between master and slave Cause Master in STOP mode Slave not in LPS Slave with wrong IO ID red yellow alternately flashing No data exchange between master and slave Cause slave address 0 red green alternately flashing red flashing Auxiliary power not connected or device fault in the slave Contact EUCHNER Two additional function LEDs may be activated via the AS Interface bus e g to display the door status The LEDs are connected as an output to the AS Interface bus via bits D1 and D2 18 Operating Instructions Safety Switch CET AS CB EUCHNER Setup LED 2 OUT D gr n green ASI gr n rot green red LED1 rot red STATE gr n rot green red LED indicators LED Color State Significance illum Nb nated ZIN Normal operation STATE green 7 further signal functions see System status table flashing WG page 21 ASi red green Status messages see chapter AS Interface status messages page 18 illumi Nr STATE red nated Rx Internal electronics fault LED1 red freely configurable LED 2 green freely configurable Can vary depending on version See data sheet Initial setup 1 Apply o
11. chine move ment is being performed For the control system this means that starting commands which cause hazardous situations must become active only when the safety guard is in protective position and the guard locking is in locked position The locked position of the guard locking must be released only when the hazardous situation is no longer present Before safety components 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 Annex B EN ISO 12100 Safety of machinery General principles for design Risk as sessment and risk reduction gt 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 in particular EN ISO 13849 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 The safety switch must be used only in conjunction with the designated CET ac tuator from EUCHNER On the use of different actuators EUCHNER provides no warranty for safe function
12. duction FR Germany CE Dichiarazione di conformita Traduzione IT S CE Declaraci n de Conformidad Traducci n ES 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 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 I 2006 42 EG Maschinenrichtlinie 2006 42 EC Machinery directive 2006 42 CE Directive Machines 2006 42 CE Direttiva Macchine 2006 42 CE Directiva de maquinas I 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 Directive comply with Annex I No 1 5 1 of the Machinery Directive Les objectifs de s curit de la Directive Basse Tension sont conformes a 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 allega
13. e is not requested 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 with integrated evaluation unit and read head is fastened to 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 inductive read head and data can be transferred H the actuator is above the extended lift tappet the door is closed and the half sequence is sent via the AS Interface bus state safety guard closed guard locking not active The code sequence is sent via the AS Interface bus when the actuator is inserted into the recess state safety guard closed guard locking active The bit sequence 0000 is sent via the AS Interface bus when the safety guard is opened Operating Instructions Safety Switch CET AS CB EUCHNER Status table Programming State DO D1 D2 D3 Monitor diagnosis Safety guard closed guard locking active Code sequence Green Half b Guard locking open sequence 00 Yellow flashing Dual channel i 8 es Invalid state Red flashing conditionally f Half SE SOREN safety
14. guard open guard locking 00 monitoring of the invalid dependent active sequence state Safety guard open 00 00 Red Address 0 or communication dis rupted u Gray Safety guard closed guard locking active Code sequence Green Guard locking open a 00 Red Dual channel Invalid state Half Red independent safety guard open guard locking 00 Seene monitoring of the invalid active q state Safety guard open 00 00 Red Address O or communication dis rupted Gray Green if safety guard was previously open Safety guard SC guard locking Code sequence or yellow flashing after startup if only the guard locking was open Yellow flashing if safety Half guard was previously KR Guard locking open 00 closed a sequence Red if safety guard was Synchronization previously open time infinite co Yellow flashing if safety Invalid state Half guard was previously safety guard open guard locking 00 E closed active q Red if safety guard was previously open Safety guard open 00 00 Red Address O or communication dis rupted Gray Operating Instructions Safety Switch CET AS CB EUCHNER Important Function of the guard locking Version CET3 AS guard locking by spring force with door monitoring output The lift tappet is pressed into the locked position by the force of the spring for the guard locking pin in the actuator and unlocked electromagnetically by the safety switch The guard locking solenoid is swi
15. h the product the information on the data sheet applies in case of discrepancies with the operating instructions Technical data for safety switch CET AS CB Value 5 Parameter Unit min typ max General Material slide Stainless steel Material safety switch housing Die cast aluminum Installation position Any recommendation switch head downward Degree of protection IP 67 Actuator approach speed max 20 m min Locking force Fmax 6 500 N nace ebe Fa Ra 5 000 N Weight Approx 1 0 kg Degrees of freedom actuator in recess X Y Z X Y 5 Z2 4 mm Connection type depending on version Plug connector M12 4 pin Auxiliary voltage 24 10 15 VDC Current consumption 50 mA Current consumption solenoid lem 400 mA Classification acc to EN IEC 60947 5 3 PDF M AS Interface data EA code 7 ID code B Total current consumption 30 mA Valid AS Interface addresses 1 31 AS Interface inputs Acc to AS Interface Safety at Work Door monitoring contact DO D1 Solenoid monitoring contact D2 D3 AS Interface outputs Guard locking solenoid DO 1 solenoid energized Red LED D1 1 LED on Green LED D2 1 LED on Reliability values according to EN ISO 13849 1 Head downward or horizontal Head upward Category 4 3 Performance Level PL e e PFH 3 1x10 h 4 29x10 h Mission time 20 20 years 22 Operating Instructions Safety Swi
16. ility will be excluded and the warranty void Operating Instructions Safety Switch CET AS CB EUCHNER General safety instructions Warning Important As the unique actuator codes are not evaluated the CET AS CB 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 CET component after an extended period without 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 possibility 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
17. ing supplement Using emergency unlocking The door must not be under tension when emergency unlocking is actuated Turn emergency unlocking clockwise until it clicks into place The lift tappet is extended and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle The safety device can be opened To reset press the detent bolt inward using a small screwdriver or similar tool and turn the emergency unlocking back 11 Operating Instructions Safety Switch CET AS CB EUCHNER Lockout mechanism optional Important The lockout mechanism is not a safety function The correct function must be checked at regular intervals The lockout mechanism can be used to prevent maintenance personnel from being unintentionally locked in the danger area for example In locked position the lockout mechanism prevents activation of guard locking The lockout mechanism can be secured in locking position with up to three locks The mechanical release can still be used Using the lockout mechanism Important Deactivate guard locking and open the safety door before using the lockout mechanism Before entering the danger area 1 Open the door 2 Press button move lockout mechanism to locking position Figures A and B and secure with lock Figure C sp Guard locking cannot be activated and it must not be possible to start
18. must remain locked until there is no longer any risk of injury sp It must not be possible to start the machine as long as the guard locking is deactivated Repeat steps 2 4 for each safety guard 20 Operating Instructions Safety Switch CET AS CB EUCHNER System status table LED indicator 5 output 2 Qa Operating mode S 5 _ State z ls E D B lt lt 2 a a closed 2 Normal operation door closed and locked Normal operation closed KS 1x Normal operation door closed and not locked open K 1x Normal operation door open X el 5x x Internal fault e g component faulty data error x x X Internal fault O LED not illuminated gt E LED illuminated Key to symbols el 10 Hz 8 s LED flashes for 8 seconds at 10 Hz K 3x LED flashes three times 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 CET AS CB EUCHNER Technical data Note H a product data sheet is included wit
19. ocking force max 6 500 N Installation position Active face opposite switch head Power supply Inductive via switch Dwell time 0 5 S 1 The dwell time is the time that the actuator must be inside or outside the operating distance Dimension drawing actuator CET A BWK 50X AS 22 Gy 8 5 S Cp aD a SESCH dh I P SEH Active Ep e Ge a 5 a 5 15 ja _ 16 15 16 te ess 71 _ 38 Tip Safety screws are included with the actuator 26 Operating Instructions Safety Switch CET AS CB EUCHNER Accessories Designation Use Version Order No item Mechanical key release for safety switch CET identical locking incl 2 keys Noch Re lease for mechanical key release identical ars A 099434 Replacement key ear 2 keys identical locking Replacement key Emergency unlocking for safety switch CET latching in both positions rn CET j 3 098808 for safety switch CET and actuator Gopi ninge ment CET cover right Cover CET 098807 door linge lett CET cover left Mounting plate EMP L CET for safety switch CET aa Sei Mounting plate EMP B CET for actuator CET See Actuator for safety switch CET incl safety screws nee e 4xM5 x 16 073456 Safety screws spare for actuator CET packaging unit 100 ea M5 x 16 27 Operating Instructions
20. onnector terminal assignment Setting the AS Interface address The address can be set prior to or after assembly The AS Interface address of the safety switch is set using an AS Interface program ming device Addresses 1 to 31 are valid The unit is programmed by connecting the programming device to the M12 plug connector on the safety switch with an AS Interface programming device Address 0 is the default setting on delivery the AS Interface LED flashes alternately red yellow during operation Control of the guard locking The guard locking is opened and closed using the output DO When the guard locking is open the safety circuit shuts down Observe the following if the guard locking solenoid on a CET3 AS spring interlock safety switch in the operating mode door locking for duration of the time delay is switched on unlocked via the second release contact of a dual channel safety monitor and a PLC It is not possible to switch off the guard locking solenoid by means of the moni tor alone The control system PLC must therefore switch off the guard locking solenoid in locked position via AS Interface output DO 0 in order to re establish the switch on conditions for the first OSSD The AS Interface output must be switched on with DO 1 so that the guard locking solenoid can be unlocked by the second safety output of the monitor 16 Operating Instructions Safety Switch CET AS CB EUCHNER Cat A
21. perating voltage to the safety switch sp The green 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 19 Operating Instructions Safety Switch CET AS CB EUCHNER Warning Functional check 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 persons in the danger area Observe the valid accident prevention regulations Mechanical function test The actuator must slide easily into the recess on the actuating head Close the safety guard several times to check the function Electrical function test After installation and any fault the safety function must be fully checked Proceed as follows 1 Switch on operating voltage The machine must not start automatically 2 Close all safety guards Guard locking by solenoid force Activate guard lock ing sp The machine must not start automatically It must not be possible to open the safety guard sp The STATE LED illuminates continuously in green w Enable operation in the control system sp It must not be possible to deactivate the guard locking as long as operation is enabled 4 Disable operation in the control system and deactivate guard locking A The safety guard
22. returned to its original position and sealed after use for example with sealing lacquer Using mechanical key release On devices with mechanical key release can be retrofitted simply turn the key to unlock For mounting see the mechanical key release supplement The lift tappet is extended and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle 10 Operating Instructions Safety Switch CET AS CB EUCHNER Detent bolt Important Important Emergency unlocking can be retrofitted Emergency unlocking is not a safety function The machine manufacturer must select and use a suitable release escape re lease emergency unlocking etc for a specific application A risk assessment appraisal is required for this purpose It may be necessary to take specifications from a product standard into account The correct function must be checked at regular intervals Loss of the release function due to mounting errors or damage during mounting Check the release function every time after mounting Loss of the release function due to tension on the actuator The door must not be under tension during release Please observe the notes on any enclosed data sheets Emergency unlocking can be used to unlock guard locking irrespective of the state of the solenoid For mounting see the mount
23. tch CET AS CB EUCHNER Typical system times Switch on time of safety outputs The max reaction time from the moment when the safety guard is locked to the moment when the safety outputs switch on T is 400 ms Risk time according to EN 60947 5 3 If an actuator moves outside the oper ating distance transmission of the code sequence on the corresponding safety switch is deactivated after a maximum of 500 ms 23 Operating Instructions Safety Switch CET AS CB EUCHNER Dimension drawing safety switch CET AS 41 il LED 2 LED1 OUT D rot red gr n green STATE ASI er d gr n rot r rum ES green red CH Mechanical release wo V 43 6 52 opp f r Schraube M6 for screw M6 IS01207 IS04762 24 Operating Instructions Safety Switch CET AS CB EUCHNER With mechanical key release With emergency unlocking With front wire release With lockout mechanism 25 Operating Instructions Safety Switch CET AS CB EUCHNER Technical data actuator CET A BWK 50X Parameter Value Unit min typ max Housing material Stainless steel Stroke max 15 mm Weight 0 25 kg Ambient temperature 20 55 RE Degree of protection acc to EN IP 67 IEC 60529 Mechanical life 1 x 10 operating cycles L
24. tched by software via AS Interface output bit DO The guard locking functions in accordance with the closed circuit current principle The guard locking cannot be opened directly if the guard locking solenoid is switched off by means of AS Interface output bit DO The door can be opened directly if the guard locking solenoid is switched on by means of AS Interface output bit DO Closing safety guard and activating guard locking The lift tappet is pushed down by the actuator The door monitoring contact and the solenoid monitoring contact are closed The complete safety code sequence is sent via AS Interface input bits DO to D3 Deactivating guard locking Switching the guard locking solenoid off via AS Interface output bit DO extends the lift tappet and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle Opening safety guard Opening the safety door moves the actuator out of the operating distance The values O 0 O O are continuously sent via AS Interface input bits DO to D3 Version CET4 AS guard locking by solenoid force with door monitoring output The safety guard can be opened immediately in the event of interruption of the solenoid power supply Usage only in special cases in accordance with strict evaluation of the accident risk see DIN EN 1088 1995 section 5 5 Example If the risk of accidental locking inside a safety guard
25. the machine Important Test this before entering the danger area Resetting the lockout mechanism 1 Open the safety door if necessary 2 Remove the lock 3 Move lockout mechanism to basic position Figure A Locking function not active Locking function active Locking function active and secured Pushbutton Push button and align lever Fit lock i Co NW SE i l 1 l El L CL Figure A Figure B Figure C 12 Operating Instructions Safety Switch CET AS CB EUCHNER Using mechanical release 1 Unscrew locking screw 2 Operate the mechanical release through the threaded bore of the locking screw e g with a metal rod 3 mm The lift tappet is extended and raises the actuator s guard locking pin over the edge of the recess The half sequence is sent via AS Interface input bits DO and D1 in every bus cycle The safety device can be opened The locking screw must be screwed back in and sealed after use for example with sealing lacquer Changing the approach direction 1 Remove the screws from the safety switch 2 Setthe required direction 3 Tighten the screws with a torque of 1 5 Nm Figure 1 Changing the approach direction 13 Operating Instructions Safety Switch CET AS CB EUCHNER Mounting Caution Safety switches must not be bypassed bridging of contacts turned away removed or otherwise rendered
26. to No 1 5 1 della Direttiva Macchine Los objetivos de seguridad de la Directiva de Bajo Voltaje cumplen con el Anexo 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 iG EN ISO 13849 1 2008 Vengono applicate le seguenti norme d EN ISO 13849 2 2008 Se utilizan los siguientes estandares EN 50295 1999 AS i 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 seguridad Typo Directivas Est ndares N mero del certificado Sicherheitsschalter CET1 AR L a b c d UQS 117149 Safety Switches CET2 AR Interrupteurs de s curit CET3 AP ll abcd UQS 113938 Finecorsa di sicurezza CET3 AR LU a b c d UQS 113325 Interruptores de seguridad CET4 AP LU a b c d UQS 113939 CET4 AR LI a b c d UQS 113940 CET3 AS Ll a b c d e UQS 113400 CET4 AS LU a b c d e UQS 113971 Betatiger CET A BWK il a b c d UQS 113325 Actuator Actionneur Azionatore Actuador Benannte Stelle NB 0035 Notified Body TUV Rheinland Industrie Service GmbH Organisme notifi Am Grauen Stein
27. y be triggered by the specific actuator desig nated for this purpose SCH Actuator and safety switch must be fitted so that N the actuator is positively mounted on the safety guard e g by using the safety screws included 90 they cannot be removed or tampered with using simple means the active faces of the actuator and the safety switch are parallel to each other see figure on the left the actuator is fully inserted into the switch recess when the safety guard is closed see figure on the left no dirt can accumulate in the recess OD KZ SNS N el N Ns A 15 Operating Instructions Safety Switch CET AS CB EUCHNER Electrical connection Important The devices are tested according to the requirements of UL508 For use and operation as per the requirements of ie UL an isolating transfor mer or a power supply with secondary overcurrent protection 3 A must be used gt Electrically isolated power supply unit with a max open circuit voltage of 33 3 V DC and a limited current of max 8 A or gt Electrically isolated power supply unit in combination with fuse as per UL248 This fuse should be designed for max 3 A and should be integrated into the 33 3 V DC voltage section View of safety switch lug connector AS Interface SS Auxiliary power O V AS Interface Auxiliary power 24 V PUNE Figure 3 AS Interface M12 plug c
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