Operating Instructions Non-Contact Safety Switch with
Contents
1. Parameter Value Unit min typ max General Material ramp Stainless steel Material safety switch housing Die cast aluminum Installation position Any recommendation switch head downward Degree of protection IP 67 screwed tight with the related mating connector Safety class Ill Degree of contamination 3 Mechanical life 1 x 108 operating cycles Ambient temperature at U 20 55 C Actuator approach speed max 20 m min Locking force Fmax 6500 N Locking force F in ace with GS T 19 Fa Fed te 5 000 Mass Approx 1 0 kg Degrees of freedom actuator in recess X Y Z X and Y 5 Z 4 mm Connection type depending on version 2 plug connectors M12 5 and 8 pin or 2 plug connectors M12 5 pin Operating voltage U reverse polarity protected regulated residual inple 5 i dl i AKE LOAREN ee Current consumption 80 mA For the approval according to UL the following applies 2 Operation only with UL class 2 power supply or equivalent measures External fuse operating voltage U 0 5 3 A External fuse solenoid operating voltage Uy 0 5 2 A Resilience to vibration In acc with EN 60947 5 2 EMC protection requirements In acc with EN IEC 60947 5 3 Safety outputs OA OB Semiconductor outputs p switching short circuit proof Output voltage U Uog gt2. The switch must be fully connected as described in the section Electrical connection to be able to use the following functions In case of version with teach in input for the teach in standby state the teach in input J must be connected to 24 V DC see Figures 3 4 and 5 In normal operation connect the teach in input to O V The safety switch disables the code of the previous actuator if teach in is carried out for a new actuator Teach in is not possible again immediately for this actuator if a new teach in operation is carried out The disabled code is released again in the safety switch only after a third code has been taught The safety switch can only be operated with the last actuator taught gt If the switch detects the actuator that was most recently taught when in teach in standby state this state is ended immediately and the switch chang es to normal state In case of versions with teach in input teach in standby state ends when the power supply to the teach in input is interrupted The actuator being taught is not activated if it is within the operating dis tance for less than 60 s 25 Operating Instructions Safety Switches CET AP EUCHNER Preparing device for teach in operation gt Connect the switch as shown below but do not apply any voltage to UB yet In case of version with teach in input For the teach in standby state the teach in input J must be reconnected from OV to 24 V D
3. Function of the guard locking Version CET1 AP guard locking by spring force 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 functions in accordance with the closed circuit current principle The locked safety guard cannot be opened immediately in the event of interruption of the power supply to the solenoid The guard locking pin of the actuator cannot be moved out of the recess and the door is locked in the closed position as long as the lift tappet is pressed down by the actuator When the operating voltage is present at the guard locking solenoid the lift tappet is extended and lifts the actuator s guard locking pin above the edge of the recess The safety door can then be opened Version CET2 AP guard locking by solenoid force Important The safety guard can be opened immediately in the event of interruption of the solenoid power supply This type may be used only in special cases after strict assessment of the accident risk see DIN EN 1088 1995 section 5 5 Example If the risk of accidental locking inside a safety guard during a power failure is higher than the risk of ineffective guard locking The lift tappet is held in locked position by electromagnetic force and released by spring force The guard locking operates in accordance with the open circuit current principle The
4. HIGH Vo Voz U 1 5 U VDC LOW Vo Vos 1 Switching current per safety output 1 200 mA Utilization category acc to EN 60947 5 2 DC 13 24V 200mA Caution outputs must be protected with a free wheeling diode in case of inductive loads Switching frequency 0 5 Hz Monitoring outputs OUT and OUT D optional p switching short circuit proof Output voltage 0 8 x Us US VDC Max load 50 mA Teach in input J or input feedback loop Y HIGH U 15 Us v LOW 0 1 Solenoid Solenoid operating voltage U reverse polarity protected regulated es ee en P np DC 24 V 10 15 Current consumption solenoid lem 480 mA Power consumption Max 12 W Duty cycle 100 Freely configurable LEDs LED 1 red LED 2 green Operating voltage 20 4 26 4 VDC 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 1 The device tolerates voltage interruptions of up to 5 ms 2 Not on version with connector RC18 3 Values at a switching current of 50 mA without taking into account the cable length 4 Can vary depending on version See data sheet 29 Operating Instructions Safety Switches CET AP EUCHNER Typical system times Ready delay After switching on the unit carries out a self test for lt 1 s The system is ready for operation only after this time Switch on time of safety outputs The max
5. Loss of the release function due to mounting errors damage or wear Check the release function every time after mounting When routing the wire front release ensure that it operates smoothly Observe the min bending radius 100 mm and minimize the number of bends The switch is not allowed to be opened gt Observe the notes on the enclosed data sheets 12 Operating Instructions Safety Switches CET AP 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 locked 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 locked position Figures A and B and secure with lock Figure C Guard locking cannot be activated and it must not be possible to start the machine Important Test this before entering the danger areal Resetting the lockout mechanism 1 Open the safety door if necessary 2 Remove t
6. Technical data for actuator CET A BWK 50X Inspection and service Service Declaration of conformity 3 3 4 4 5 6 6 8 9 Operating Instructions Safety Switches CET AP EUCHNER Scope These operating instructions are valid for all CET AP from version V 1 5 0 These operating instructions and the enclosed data sheet form the complete user information for your device Correct use The safety switch CET AP is an electromagnetic interlocking 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 machine movement 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 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 IEC 62061 Safety of machinery Functional safety of safety related electrical electronic and programmable elec
7. 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 A 90 16 Operating Instructions Safety Switches CET AP EUCHNER Electrical connection Warning In case of an error loss of the safety function through incorrect connection To ensure safety both safety outputs OA and OB must always be evaluated The monitoring output OUT and the door monitoring output OUT D are not allowed to be used as safety outputs Lay the connection cables with protection to prevent the risk of short cir cuits Caution Risk of damage to equipment or malfunctions as a result of incorrect connection The power supply for the evaluation electronics is electrically isolated from the power supply for the guard locking solenoid The teach in input and feedback loop as well as LED 1 and LED 2 this is applicable only to freely controllable LEDs have the ground potential O V U The device generates its own clock signal on the output lines OA OB A downstream control system must tolerate these test pulses which may have a duration of up to 0 3 ms The test pulses are only output if the safety outputs switched on Depending on the inertia of the connected device control system relay etc this can lead to short switching processes The inputs on an evaluation unit connected
8. 16 Responsable D veloppement Electronique Responsable documentation 70771 Leinfelden Echterdingen Direttore Sviluppo Elettronica Responsabilita della dacumentazione Germany Director de desarrollo electr nico Agente documenta 07 05 2014 NG TPS Blatt Sheel 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 35 More than safety Euchner GmbH Co KG KohlhammerstraBe 16 D 70771 Leinfelden Echterdingen info euchner de www euchner de Edition 122242 01 05 14 Title Operating Instructions Safety Switches CET AP translation of the original operating instructions Copyright EUCHNER GmbH Co KG 05 2014 Subject to technical modifications no responsibility is accept ed for the accuracy of this information Third party trademark information SIMATIC ET200pro and ET200s is a trademark of SIEMENS AG EUCHNER
9. 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 Important 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 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 download the operating instructions from www EUCHNER de Operating Instructions Safety Switches CET AP EUCHNER Function Function of the electronics Safety switches series CET AP permit locking of movable safety guards They meet the following safety requirements Category 3 PLe according to EN ISO 13849 1 head mounted upward Category 4 PLe according to EN ISO 13849 1 head mounted downward or horizontal 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 gt The switch state of the semiconductor outputs is continuously monitored inter nally Short circuit detection at the safety outputs by p
10. connected to the safe inputs of a control system Prerequisite The input must be suitable for pulsed 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 30 A detailed example of connecting and setting the parameters of the control system is available for many devices at www euchner de in the area Download Applications CET The features of the respective device are dealt with there in greater detail 18 Operating Instructions Safety Switches CET AP EUCHNER Devices for direct connection to IP65 field modules The version CET AP Sl wiring diagram A is optimized for connection to de centralized peripheral systems such as the ET200pro series from Siemens The devices are parameterized and connected like an OSSD e g like light curtains The two 5 pin M12 plug connectors can be connected directly to the sockets of an IP65 field module e g ET200pro If flying leads are used connection to IP20 input and output modules e g ET200s is naturally also possible Important Observe the following notes prior to connection Use only CET AP versions that are intended to be used for this purpose Parameter as
11. must be positive switching as the two outputs on the safety switch deliver a level of 24 V in the switched on state gt 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 volt age in the event of a fault or by other equivalent isolation measures PELV The device tolerates voltage interruptions in the operating voltage U and Ue Of up to 5 ms Voltage interruptions are also output on the safety and monitoring outputs 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 applies 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 Ox requirements a connection cable listed under UL category code CYJV 7 must be used and the following re quirements met min 30 V DC 2 A 85 C The EUCHNER connection cables meet these requirements In order to avoid EMC interference the physical environmental and operating conditions at the installation site of the device mus
12. of failure to comply with these requirements Observe the following requirements with respect to the connection cables For safety switch CET AP with plug connectors 2 x M12 Parameter Value Unit Conductor cross section min 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 20 Operating Instructions Safety Switches CET AP EUCHNER Connector assignment safety switch CET AP for connection to decentralized peripheral systems 2 x M12 5 pin pin 5 not used Wiring diagram A A Plug connector Pin Designation Function Wire colon oficon view of connection side nection cable 2xM12 X1 1 Us Operating voltage 24 V DC BN X 1 2 OA Safety output channel 1 WH X1 3 OV Operating voltage O V BU X1 4 OB Safety output channel 2 BK X1 5 n c GY X 2 1 n c BN X 2 2 n C WH X 2 3 OV UCM OV solenoid BU X 2 4 UCM Operating voltage of guard locking solenoid 24 V DC BK X 2 5 n c GY Wiring diagram B 1 Only for standard EUCHNER connection cable Connector assignment safety switch CET AP 1 x RC18 19 pin Plug connector Wire color of con view of connection side kin Designation Function nection cable 1 UCM Operating voltage of guard locking solenoid 24 V DC VT 2 n c 3 n C 4 OA Safety output channel 1 RDBU 5
13. 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 the safety outputs OA and OB on the corresponding safety switch are deactivated after a maximum of 500 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 Test 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 test pulses which may have a duration of up to 0 3 ms applies for a load with C lt 30 nF and R lt 20 k0 This can usually be set up in the control systems by parameter assignment If parameter assignment is not possible for your control system or if shorter test pulses are required please contact our support organization 30 Operating Instructions Safety Switches CET AP EUCHNER Dimension drawing safety switch CET AP For M6 screw DIN 1207 ISO 4762 2 pin 1 socket Lift tappet Version with plug connectors 2 x M12 31 With escape release Basic position for escape release Release by pressing With angle connectors Operating Instructions Safety Switches CET AP EUCHNER With mechanic
14. switch by closing the door When the switch on guar d l distance is reached power is supplied to the actuator by the inductive read head locking pin and data can be transferred The bit pattern read is compared with the code saved in the safety switch If the data match the safety outputs are enabled On devices with monitoring output OUT this is also switched off y 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 Operating Instructions Safety Switches CET AP EUCHNER The safety outputs shut down the safety circuit if the safety guard is opened On devices with monitoring output OUT this is switched on The state of the safety outputs is monitored internally by two microprocessors In the event of a fault in the safety switch the safety circuit is switched off and the DIA LED illuminates red 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 Operating Instructions Safety Switches CET AP EUCHNER
15. C Important In nor mal operation reconnect the teach in input to O V In case of version without teach in input The circuit is the same but con nection J is omitted Observe different control of guard locking for CET1 3 and CET2 4 CET1 3 DC 24V o CET1 and CET3 No voltage at UCM guard locking active CET2 4 DC 24 V CET2 and CET4 Voltage at UCM guard locking active Devices with teach in input Connect J to 24 V for teach in y 1 F2 O Vv V gt Devices with teach in input Connect J to 24 V for teach in 11 42 OV UCM UCM OV UB GND Actuator teach in 1 Switch on operating voltage UB The green LED flashes cyclically three times and signals that it is in the standby state for teach in Standby state for teach in remains active for ap prox 3 minutes If the red LED is illuminated there is a fault Teach in is not possible The green LED indicates the fault code Diagnostics see section System status table on page 28 2 Activate guard locking CET1 3 no voltage at UCM CET2 4 Voltage at UCM 3 Fully insert new actuator into the recess Do not cant it place it in the center of the recess see picture on left Teach in operation starts green LED flashes approx 1 Hz The teach in oper
16. OB Safety output channel 2 GN 6 Us Operating voltage 24 V DC BU TxRCIS 7 RST Reset GYRD 8 OUT D Door monitoring output WHGN 9 n c 10 OUT Monitoring output WHGY 11 n c 12 a Function earth YEGN 13 J Teach in input PK 14 nc Do not connect to O V 15 n c BNGN 16 n c YEBN 17 MC 18 OV UCM OV solenoid YE 19 O VUB Operating voltage 0 V BN 1 Only for standard EUCHNER connection cable Z1 Operating Instructions Safety Switches CET AP EUCHNER Connector assignment safety switch CET AP 1 x M12 8 pin Wiring diagram C Paoa eaen aide Pin Designation Function ron cando E 1xM12 1 UCM Operating voltage of guard locking solenoid 24 V DC WH 2 Us Operating voltage 24 V DC BN 3 OA Safety output channel 1 GN 4 OB Safety output channel 2 YE 5 OUT DIA Monitoring output GY 6 OUT D Door monitoring output PK 7 OV UB Operating voltage O V BU 8 OV UCM OV solenoid RD 1 Only for standard EUCHNER connection cable 22 Operating Instructions Safety Switches CET AP EUCHNER Connecting the CET AP general Connect the device as shown in Figure 3 The monitoring output OUT and if avail able the door monitoring output OUT D can be connected to a control system The switches 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 If input RST is not used in your application it should be connecte
17. Operating Instructions Non Contact Safety Switch with Guard Locking CET AP from V 1 5 0 More than safety EUCHNER Operating Instructions Safety Switches CET AP EUCHNER Contents Scope Correct use Possible combinations for CES 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 Escape release optional Wire front release optional Lockout mechanism optional Changing the approach direction Mounting Electrical connection Notes on operation with safe control systems Devices for direct connection to IP65 field modules Safety in case of faults Fuse protection for power supply Requirements for connection cables Connector assignment safety switch CET AP for connection to decentralized peripheral systems 2 x M12 5 pin pin 5 not used Connector assignment safety switch CET AP 1 x RC18 19 pin Connector assignment safety switch CET AP 1 x M12 8 pin Connecting the CET AP general Connecting a CET AP to a decentralized peripheral system e g ET200 series from Siemens Setup LED indicators Teach in function for actuator only for CET unicode Functional check System status table Technical data Technical data for safety switch CET AP Dimension drawing safety switch CET AP
18. al key release With emergency unlocking With front wire release With lockout mechanism 32 Operating Instructions Safety Switches CET AP EUCHNER Technical data for actuator CET A BWK 50X Parameter Value Unit min typ max Housing material Stainless steel Stroke max 15 mm Mass 0 25 kg Ambient temperature 20 55 C Degree of protection IP 67 Mechanical life 1 x 10 operating cycles Locking force max 6500 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 i gio i Pe 9g 15 9 71 16 Tip 22 8 5 N PHE ela es Active face E D ae 5 s 15 16 38 ve Safety screws are included with the actuator 33 Operating Instructions Safety Switches CET AP 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 e
19. ation is completed after approx 60 seconds and all LEDs go out 4 Switch off operating voltage UB min 3 seconds The code of the actuator that was just taught in is activated in the safety switch 5 In case of version with teach in input connect teach in input to O V 5 6 Switch on operating voltage UB O 0 The device operates normally 26 Operating Instructions Safety Switches CET AP EUCHNER Functional check Warning 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 gt 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 The green STATE LED flashes at regular intervals 2 Close all safety guards Guard locking by solenoid force activate guard lock ing The machine must not start automatically lt must not be possible to open the safety guard The green STATE LED illuminates continuously w Enable operation in the control system It must not be possible to deactivate the guard locking as lon
20. ble 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 Operating Instructions Safety Switches CET AP EUCHNER General safety instructions Safety switches fulfill personal protection functions Incorrect installation or tam pering can lead to fatal injuries to personnel For the multicode version the following applies as the unique actuator codes are not evaluated the CET AP CH version can only be used for applications in which a hazard cannot result from possible tampering with the system 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 Warning 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
21. ce The safety guard can be opened To reset press the snap in bolt inward using a small screwdriver or similar tool and turn the emergency unlocking back On devices with monitoring output OUT this is switched off OUT D can assume an undefined state Open the safety door and close it again after resetting emergency unlocking The device will then operate normally again Snap in bolt 10 Operating Instructions Safety Switches CET AP EUCHNER Escape release optional Important The escape release is not a safety function The machine manufacturer must select and use a suitable release escape release emergency unlocking etc for a specific application A risk assess ment 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 tension on the actuator The door must not be under tension during release Please observe the notes on any enclosed data sheets The escape release is used to open a locked safety guard from the inside see dimension drawing in the section Technical data Fit escape release such that operation inspection and service are possible Using the escape release Press the red release knob to the stop The safety guard can be opened Pull the knob out again to reset On devices with mon
22. d to O V Warning In case of an error loss of the safety function through 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 Important The subsystem CET AP complies with PL e in accordance with EN 13849 1 To integrate the subsystem in a category 3 or 4 structure it is 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 CET system The example illustrated here does not show complete system planning The user is responsible for safe integration in the overall system 24 V DC F1 F2 13 S1 E EUCHNER CET ae g on ot o on On E 508 sos sos Connected L Read Head T load 5 l l 8 Pe E SS DON Door Monitoring Safety Safety monitoring Out f Output Output 1 tput 12 18 19 Q gt Boom Sa Nor Te a GND N N Figure 3 Connection example for version with teach in input and plug connector RC18 23 Operating Instructions Safety Switches CET AP EUCHNER Connecting a CET AP to a decentralized peripheral system e g ET200 series from Siemens Please observe the notes in secti
23. ed simply turn the key to unlock For mounting see the mechanical key release supplement On devices with monitoring output OUT this is switched off OUT D can assume an undefined state Open the safety door and close it again after resetting the mechanical release The device will then operate normally again Operating Instructions Safety Switches CET AP EUCHNER Emergency unlocking can be retrofitted Important Emergency unlocking is not a safety function The machine manufacturer must select and use a suitable release escape release emergency unlocking etc for a specific application A risk assess ment 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 gt 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 mounting supplement Using emergency unlocking Important The door must not be under tension when emergency unlocking is actuated gt Turn emergency unlocking clockwise until it clicks into pla
24. es CET AP EUCHNER Mechanical release and mechanical key release can be retrofitted Important The mechanical release is not a safety function The machine manufacturer must select and use a suitable release escape release emergency unlocking etc for a specific application A risk assess ment appraisal is required for this purpose lt may be necessary to take specifications from a product standard into account The mechanical key release must not be used to lock the switch during ser vicing 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 gt 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 safety guard can be opened The mechanical release must be 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 retrofitt
25. for pulsed power supply X off off X Oo AS too long a Sis Fault in the teach in operation only unicode e g actuator removed from the oper X off off off 70 1x 797 ating distance prior to the end of the teach in operation or disabled actuator in the os operating distance Fault display EA ly X off off off 0 4x 3 amp Output error e g short circuits loss of switching ability X off off off 8 5x Set Internal fault e g component fault data error or short circuit at the outputs X off off off X X Internal fault o LED not illuminated l w LED illuminated Key to symbols e 10 Hz 8 s LED flashes for 8 seconds at 10 Hz e 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 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 28 Operating Instructions Safety Switches CET AP 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 CET AP
26. g as operation is enabled 4 Disable operation in the control system and deactivate guard locking The safety guard must remain locked until there is no longer any risk of injury 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 27 Operating Instructions Safety Switches CET AP EUCHNER System status table LED indicator output Operating mode State Monitoring output OUT Door monitoring output OUT D only CET3 and CET4 STATE green DIA red Actuator door position Safety outputs OA and OB closed Normal operation door closed and locked O o Oo My AR O 1 xin Normal operation door closed and locked safety outputs not switched because verse Feedback loop not closed O closed off on on 5 Normal operation closed off off on e 1x O Normal operation door closed and not locked open off off off e 1x O Normal operation Door open Door open unit is ready for teach in for a new actuator only short time after pow er up Teach in standby niy Unicode open off off off 3x o closed off off off e 1 Hz O Teach in operation Setup X off off off Oo O Positive acknowledgment after completion of teach in operation only unicode Jz Fault on the power supply e g shutdown pulse duration
27. he 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 Figure A Figure B Figure C 13 Operating Instructions Safety Switches CET AP EUCHNER Using mechanical release 1 Unscrew locking screw 2 Operate the mechanical release through the tapped hole for the locking screw e g with a metal rod 3 mm The safety guard can be opened The locking screw must be screwed back in and sealed after use for example with sealing lacquer On devices with monitoring output OUT this is switched off OUT D can assume an undefined state Open the safety door and close it again after resetting the mechanical release The device will then operate normally again Changing the approach direction 1 Remove the screws from the safety switch 2 Set the required direction 3 Tighten the screws with a torque of 1 5 Nm Figure 1 Changing the approach direction 14 Operating Instructions Safety Switches CET AP EUCHNER Mounting Caution 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 according to EN 1088 1995 A2 2008 sec 5 7 The max achievable category according to EN 13849 1 depends
28. 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 l 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 Ik 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 R Anhang Nr 1 5 1 der Maschinenrichtlinie eingehalten The safety objetives of the Low Voltage Directive comply with Annex 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 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 s
29. itoring output OUT this is switched off OUT D can assume an undefined state Open the safety door and close it again after resetting the escape release The device will then operate normally again 11 Operating Instructions Safety Switches CET AP EUCHNER Wire front release optional Important The wire front release is not a safety function The wire front release is non latching and therefore must not be used as an escape release unless the machine manufacturer itself provides a detent mechanism The machine manufacturer must select and use a suitable re lease escape release emergency unlocking etc for a specific application A risk assessment appraisal is required for this purpose It may be neces sary to take specifications from a product standard into account Loss of the release function due to tension on the actuator The door must not be under tension during release The correct function must be checked at regular intervals The wire front release permits remote release of the guard locking via a pull wire Flexible routing of the pull wire permits release of the guard locking in inaccessible installation situations On devices with monitoring output OUT this is switched off OUT D can assume an undefined state Open the safety door and close it again after resetting the wire front release The device will then operate normally again Mounting the wire front release Important gt
30. nsure trouble free long term operation Check the switching function see section Functional check Check all additional functions e g escape release lockout mechanism etc gt 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 V X X X can also be found on the device Service If service support is required please contact EUCHNER GmbH Co KG KohlhammerstraBe 16 D 70771 Leinfelden Echterdingen Service telephone 49 711 7597 500 E mail info euchner de Internet www euchner de 34 Operating Instructions Safety Switches CET AP EUCHNER Declaration of conformity More than safety EUGHNER CE EUCHNER EUCHNER GmbH Co KG EG Konformit tserkl rung Original DE KohlhammerstraRe 16 EC Declaration of Conformity Translation EN re 70771 Leinfelden Echterdingen CE D claration de Conformit Traduction FR g Germany CE Dichiarazione di conformit Traduzione IT CE Declaraci n de Conformidad Traducci n ES S 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
31. on Devices for direct connection to IP65 field modules on page 19 before connecting the device PLC decentralized periphery e g ET 200pro gt 2 g dl d gt SO O cl e cl 2 UCM n c ao q O 4 5 a aj Mm t wo af aj o X1 M12 plug connector X2 M12 plug connector 5 pin 5 pin CET3 AP Sk CET4 AP Sk Figure 4 Connection example for version for connection to decentralized periph eral systems here ET200pro 24 Operating Instructions Safety Switches CET AP EUCHNER LED indicators LED Color State Significance illumi Me nated AR Normal operation STATE green 7 Di Teach in operation or Power Up for further signal flashing A function see status table illumi Nr Internal electronics fault DIN Red nated AR Fault at the inputs outputs LED 1 Red Solenoid status LED 2 green Door position status Can vary depending on version See data sheet Teach in function for actuator only for CET unicode The actuator must be allocated to the safety switch using a teach in function before the system forms a functional unit During a teach in operation the safety outputs and the monitoring output OUT are switched off e the system is in the safe state Depending on the version the teach in operation is automatic or is undertaken with the aid of the teach in input J Important
32. on the installation position see technical data Caution Risk of damage to equipment and malfunctions as a result of incorrect installation Safety switches must not be used as a mechanical end stop Fit an addition al 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 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 before painting work 74 5 4 mm li Figure 2 Door radii and approach zone pa 15 Operating Instructions Safety Switches CET AP EUCHNER 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 actuator is positively mounted on the safety guard e g by using the safe ty screws included they cannot be removed or tampered with using simple means the active faces of the actuator and the safety switch are parallel to each
33. safety door can be opened as long as the lift tappet is held in the extended position The lift tappet is released when operating voltage is present at the guard locking solenoid The actuator s guard locking pin can now press the lift tappet down The safety door is locked as soon as the guard locking pin is fully inserted into the recess Version CET3 AP guard locking by spring force with door monitor ing output Function as for CET1 AP but the door position is also monitored here The door monitoring output OUT D is switched on as soon as the actuator protrudes beyond the extended lift tappet state door closed guard locking not active The output OUT D also remains switched on when guard locking is active Devices for connection to decentralized peripheral systems do not feature a door monitoring output OUT D Instead the door position is indicated via LED 2 Version CET4 AP guard locking by solenoid force with door mon itoring output Function as for CET2 AP but the door position is also monitored here The door monitoring output OUT D is switched on as soon as the actuator protrudes beyond the extended lift tappet state door closed guard locking not active The output OUT D also remains switched on when guard locking is active Devices for connection to decentralized peripheral systems do not feature a door monitoring output OUT D Instead the door position is indicated via LED 2 Operating Instructions Safety Switch
34. signment must be performed for the input output modules see application example at www EUCHNER de in the area Download Applica tions CET Additionally observe notes from the control system manufacturer where nec essary Safety in case of faults The operating voltage U and the solenoid voltage U are reverse polarity pro tected gt 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 current required for the outputs The following rules apply Max current consumption lis hour loros lour 6 a lig Switch operating current 80 mA lur Load current of monitoring outputs max 50 mA per monitoring output oros Load current of safety outputs OA OB 2 x max 200 mA Only on devices with the corresponding monitoring output 19 Operating Instructions Safety Switches CET AP EUCHNER Caution Requirements for connection cables Risk of damage to equipment or malfunctions as a result of incorrect connection 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
35. t comply with the require ments according to the standard EN 60204 1 2006 section 4 4 2 EMC 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 17 Operating Instructions Safety Switches CET AP EUCHNER Caution Power devices which are a powerful source 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 possi ble from the cables of the power circuits 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 Important 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 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 If the operating voltage is connected to a terminal of a safe control system this output must provide sufficient electrical current Outputs OA and OB can be
36. tronic control systems Correct use includes compliance with the relevant requirements for installation and operation in particular EN ISO 13849 1 Safety of machinery Safety related parts of control systems General principles for design gt EN 1088 Safety of machinery Interlocking devices associated with guards Principles for design and selection EN 60204 1 Electrical equipment of machines The safety switch is only allowed to be operated in conjunction with the intended EUCHNER CET actuators and the related connection components from EUCHNER On the use of different actuators or other connection components EUCHNER provides no warranty for safe function Important 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 Itis only allowed to use components that are permissible in accordance with the table below Operating Instructions Safety Switches CET AP EUCHNER Safety switches Possible combinations for CES components Actuator CET A BWK 50X 096327 CET AP Key to symbols Combination possi
37. uivantes sont appliqu es c EN ISO 13849 1 2008 Vengono applicate le seguenti norme d EN ISO 13849 2 2008 Se utilizan los siguientes estandares e 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 LH a b c d UQS 117149 Safety Switches CET2 AR Interrupteurs de s curit CET3 AP 1 1 a b c d UQS 122248 Finecorsa di sicurezza CET3 AR LAE LI a b c d UQS 113325 Interruptores de seguridad CET4 AP 1 1 a b c d UQS 122248 CET4 AR ill a b c d UQS 113940 CET3 AS LH a b c d e UQS 113400 CET4 AS 1 1 a b c d e UQS 113971 Bet tiger CET A BWK 1 5 a b c d UQS 113325 Actuator Actionneur Azionatore Actuador Benannte Stelle NB 0035 Notified Body TUV Rheinland Industrie Service GmbH TUV Rheinland Group Organisme notifi Am Grauen Stein 51105 K ln Germany Sede indicata Entidad citada y Wa Leinfelden Mai 2014 Dipl Ing Richard Holz A Dipl Ing FH Duc Binh Nguyen Leiter Elektronik Entwicklung Dokumentationsbevollmachtigter EUCHNER GmbH Co KG Manager Electronic Development Documentation manager Kohlhammerstrake
38. ulsed 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 Guard locking active actuator completely inserted into recess Feedback loop closed only for version with feedback loop start button The system consists of the following components coded actuator transponder Lift tappet and switch Each actuator has a unique electronic coding and is therefore a unique element The code in an actuator cannot be reprogrammed For the unicode version the following applies The actuator must be assigned to the safety switch by a teach in operation so that itis detected by the system This unambiguous assignment ensures a particularly high level of protection against tampering For the multicode version the following applies Unlike systems with unique code detection on multicode devices 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 Slide There is no exact comparison of the actuator code with the code defined in the safety switch unique code detection Transponder The safety switch with integrated evaluation unit and read head is fastened to the fixed part of the safety guard Spring The actuator attached to the movable part of the safety guard is moved towards mounted al the read head fitted in the safety
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