Operating Instructions Read Head CET
Contents
1. 24 VDC 4 6 4y F1 F2 S1 CET1 AX LRA 00 50X SA sy UCM LED2 095735 B is y 3B EIAN D ir A I o O O o OV UB J SH1 H11H12 StartE CES AZ AES 01B a 104770 K2 lt n KEFA A EUCHNER ST ol DA 23 24 ala EY T T Connected Feed load back loop Z gt 7 GNDo Important To achieve category 3 PL e or category 4 PL e according to EN 13849 1 it is necessary to monitor the downstream contactors realized here via PLC This example shows only an excerpt that is relevant for connection of the CES system The example illustrated here does not show complete system plan ning The user is responsible for safe integration in the overall system Plug connector A Wire color Readibead view of connection side AN Funcion Connection cable CET1 AX LRA 00 50X SA i 095735 1 Read head data wire WH 2 Read head data wire BN CET2 AX LRA 00 50X SA 106039 3 SH data wire screen Screen CET1 AX LDA 00 50X SE 4 LED 2 freely configurable 24 V YE 100399 M12 5 ov GY CET1 AX LRA 00 50F SA 6 102161 6 UCM solenoid operating voltage DC 24 V PK CET1 AX LDA 00 50F SA 7 O V UCM solenoid operating voltage 0 V BU 103750 2 CET1 AX LRA 00 50X SF 104051 1 CET1 AX LRA 002. Push button and align lever Locking function active and secured Fit lock Figure 1 Function of lockout mechanism EUCHNER GmbH Co KG KohlhammerstraBe 16 D 70771 Leinfelden Echterdingen Tel 49 711 75 97 0 Fax 49 711 75 33 16 www euchner de info euchner de EUCHNER GmbH Co KG 098069 16 11 12 translation of the original operating instructions Subject to technical modifications no responsibility is accepted for accuracy of this information Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EUCHNER A 90 OO QQ xe ow Anfahrbereich Approach Zone 74 5 4mm E Figure 3 Door radii and approach zone Alternative solutions must comply with the following Service and inspection Technical data requirements Warning gt Read head gt Electrically isolated power supply unit with a max Loss of the safety function because of damage open circuit voltage of 30 V DC and a limited to the system Parameter Value curent of es BA 7 In case of damage the entire device must be Maier Stainl ss steel gt Electrically isolated power supply unit in combina replaced Read head housing Die cast aluminum tion 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 sect
3. Figure 2 Changing the approach direction Remove the screws from the read head gt Set the required direction Tighten the screws with a torque of 1 5 Nm Protection against environmental effects Alasting and correct safety function requires that the actuating head must be protected against foreign bodies such as swarf sand blasting shot etc which can become lodged in the recess For this purpose the read head should be installed with the actuating head facing down Cover the actuating head the actuator and the rating plate during painting work Electrical connection A The read head CET is only allowed to be used in combination with a suitable EUCHNER connec tion cable see Table 1 The connection cable contains two screened cores for the signal from the read head This screening must not be interrupted on the route to the evaluation unit or earthed at any other point see Figure 8 A All the electrical connections must either be isolated from the mains supply by a safety transformer according to IEC EN 61558 2 6 with limited output voltage in the event of a fault PELV or by other equivalent isolation measures For use and operation as per the u 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 Locking function not active Pushbutton Locking function active
4. tions are not followed or if any servicing is not performed as required liability will be excluded and the warranty void Safety precautions Safety components fulfill personal protection func tions Incorrect installation or tampering can lead to fatal injuries to personnel Check the safe function of the safety guard par ticularly after any setup work gt after the replacement of a system component gt 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 A Fatal injury due to incorrect connection or incor rect use gt Safety switches must not be bypassed bridg ing 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 A The device may be installed and put into opera tion only by authorized experts gt who are familiar with the correct handling of safety components gt who are familiar with the applicable EMC regulations gt who are familiar with the applicable regula tions on health and safety and accident prevention gt who have read and understood the operating instructions and the system manual A The switching operation must only be trig gered by actuators specifically provided for t
5. 00 50X SC c 103444 ET1 AX LDA 00 50X SC C 109932 ET2 AX LRA 00 50X SC 096327 CET A BWK 50X Actuator loc king force 6 500 N incl safety screws 073456 M5x16 V100 Safety screws M5 x 16 or actuator replacement packaging unit 100 ea 1 Table 3 Ordering table read heads and actuators Plug connector can be rotated by 360 Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EU CHNER M8 wo Version 42 us B CET AX LRA 26 5 for Single insertion M6 screw J DIN 1207 ISO 4762 7 N 74 5 4 lt 15 gt f Active face Read head Actuator CET A BWK 50X Figure 5 Dimensions with plug connector M12 Figure 6 Dimensions with 2 plug connectors M8 With mechanical key release With emergency unlocking With front wire release With escape release With lockout mechanism Norm position escape release Release by pressing N B24 B20 INN Figure 7 Dimensions with mechanical key release emergency unlocking front wire release escape release and lockout mechanism EUCHNER GmbH Co KG KohlhammerstraBe 16 D 70771 Lei
6. 50X SA C2333 111917 111917 8 FE function earth RD CET1 AX LRA 00 50F SA C2333 111918 111918 CET2 AX LRA 00 50X SA 106039 1 Read head data wire WH M12 2 Read head data wire BN 3 SH data wire screen Screen CETLAXLRA 00 50L SA 4 LED 2 freely configurable 24 V YE 104062 5 LED 1 freely configurable 24 V GY 6 UCM solenoid operating voltage DC 24 V PK 7 O V UCM solenoid operating voltage 0 V BU 8 FE function earth RD 1 1 Read head data wire BN 2xM8 amp 1 3 Read head data wire WH CET1 AX LRA 00 50X SC S1 4 102988 F i s13 S1 1 14 SH data wire screen Screen CET2 AX LRA 00 50X SC 109932 21 UCM solenoid operating voltage DC 24 V BN CET1 AXLDA 00 50X SC 2 2 2 4 2 2 ov WH 103444 2 1 52 3 2 3 O V UCM solenoid operating voltage 0 V BU 2 4 LED 2 freely configurable 24 V BK Only for standard EUCHNER connection cable Figure 4 Connection example and terminal assignment EUCHNER GmbH Co KG KohlhammerstraBe 16 D 70771 Leinfelden Echterdingen Tel 49 711 75 97 0 Fax 49 711 75 33 16 www euchner de info euchner de Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EU C H N ER Sheath Plug connector Cable length m Order no 10 099633 C M12F08 07X025PV10 0 MA 099633 p 099634 Straight 20 C M12F08 07X025PV20 0 MA 099634 103115 PVC 25 C M12F08 07X025PV25 0 MA 103115 10 100456 C M12F08 07X025PV10 0 MA 100456 angled 105071 20 C M1
7. 2F08 07X025PV20 0 MA 105071 10 C M12F08 anor 0 MA 102218 M12F08 PU10 0 MA 10221 PUR Straight 103782 25 C M12F08 07X025PU25 0 MA 103782 Table 1 Ordering table connection cables Read head order number Evaluation unit order number Installation position Achievable category and PL according to EN ISO 13849 1 CET AX CES AZ ES Head upward 3 PLe In this installation position the PFH value of the system evaluation unit read head reduces to 4 29 x 108 Head downward or horizontal 4 PLe In this installation position the PFH value for the system evaluation unit read head is the same as that for the evaluation unit Table 2 Combination options Order no item Closed circuit current principle current principle Open circuit 2 plug connectors M8 Double insertion slide Escape release 1 freely configurable 2 freely configurable Lockout mechanism 2 LEDs 2 LEDs c 095735 ET1 AX LRA 00 50X SA Single insertion slide C 100399 ET1 AX LDA 00 50X SE Plug connector M12 C 104051 4 ET1 AX LRA 00 50X SF C 104062 ET1 AX LRA 00 50L SA C 102161 ET1 AX LRA 00 50F SA C 103750 ET1 AX LDA 00 50F SA Q 111917 ET1 AX LRA 00 50X SA C2333 111917 111918 CET1 AX LRA 00 50F SA C2333 111918 C 106039 ET2 AX LRA 00 50X SA 102988 ET1 AX LRA
8. Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EUCH NER Correct use Series CET AX read heads are operated in combi nation with an evaluation unit in the system family CES AZ In this combination the read head CET AX is an electromagnetic interlock device with guard locking and guard locking monitoring In combination with a safety guard and the machine control this safety system prevents the safety guard from being opened while a dangerous machine movement is being performed For the control system this means that gt starting commands which cause hazardous situ ations must become active only when the safety guard is in protective position and the guard lock ing 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 as sessment must be performed on the machine in accordance with gt EN ISO 13849 1 Safety of machinery Safety re lated parts of control systems General principles for design Annex B gt EN ISO 12100 Safety of machinery General principles for design Risk assessment and risk reduction gt IEC 62061 Safety of machinery Functional safety of safety related electrical electronic and program mable electronic control systems Correct use includes compliance with the relevant requirements for installation and operation in particula
9. cial cases in accor dance 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 during a power failure is higher than the risk of ineffective guard locking The lift tappet is initially extended by spring force The spring force on the guard locking pin is not sufficient to press down the lift tappet Only when the guard locking solenoid is also switched on does the lift tappet retract The guard locking is active The guard locking operates in accordance with the open circuit current principle The safety door can be opened as long as the lift tap pet is held in the extended position by spring force Releases Important gt The releases are not safety functions gt The machine manufacturer must select and use a suitable release escape release 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 releases must not be used to lock the switch during maintenance work to prevent activation of guard locking for example gt The correct function must be checked at regular intervals gt Loss of the release function due to mounting errors or damage during mounting gt Check the release function every time after mounting gt Loss of the release function due to tension on the actuat
10. his purpose see Table 3 which are positively connected to the safety guard Function In the read head there is a lift tappet 1 that contains the transponder see Figure 1 The actuator has a spring mounted guard locking pin 2 in which there is a CES actuator The guard locking is active if the lift tappet is retracted and the guard locking pin is in the recess 3 on the read head Read head Actuator Figure 1 Read head and actuator gt Version CET1 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 read head The guard locking functions in accor dance 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 actuator s guard locking pin 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 guard locking pin When the operating voltage is present at the lock ing 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 gt Version CET2 guard locking by solenoid force A The safety guard can be opened immediately in the event of interruption of the solenoid power supply Usage only in spe
11. ion In order to avoid EMC interference the physical environmental and operating conditions at the installation site of the device must comply with the requirements according to the standard EN 60204 1 2006 section 4 4 2 EMC gt For terminal assignment see Figure 4 gt For detailed information see the system manual for the evaluation unit used Setup and functional check Pay attention to the information in the system manual for the evaluation unit used during setup A Danger of fatal injuries as a result of faults in installation and functional check gt Before carrying out the functional check make sure that there are no persons in the danger area gt Observe the valid accident prevention regula tions gt 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 gt 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 locking The machine must not start automatically It must not be possible to open the safety guard 3 Enable operation in the control system gt Itmust not be possible to deactivate the guard locking as long as operation is enabled 4 Disable operation in the control s
12. ith GS ET 19 F Fa 3 5 000 Weight Approx 1 kg Degrees of freedom X Y Z X Y 5 mm Z 4mm Switching frequency 1 Hz this value can deviate depending on the evalua tion unit used See system documentation of the related evaluation unit Connection See Figure 4 Rated insulation 50V voltage U Rated impulse withstand LB kV voltage Ump Solenoid Connection Reverse polarity protected Solenoid operating voltage Solenoid power consumption DC 24 V 10 15 10W Duty cycle 100 gt Actuator Parameter Value Housing material Stainless steel installation position Active face opposite read head Degree of protection acc to EC EN 60529 IP67 Mechanical life 1 x 106 operating cycles Ambient temperature 20 55 C Locking force max 6 500 N Weight Approx 0 25 kg Stroke max 15 mm Door radius min 300 mm Power supply Inductive via read head gt LED Parameter Value Connection voltage 24V 15 reverse polarity protected Current consumption max 6 mA Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EUCHNER This connection example applies only to the read head CET1 AX LRA 00 50X SA Observe the corresponding connector assignment for your version
13. nfelden Echterdingen Tel 49 711 75 97 0 Fax 49 711 75 33 16 www euchner de info euchner de Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EUCHNER Shield SH1 To PLC Power Supply Data Cable H11 H12 Figure 8 Connection to meet EMC requirements
14. or The door must not be under tension during release gt Observe the notes on the enclosed data sheets Mechanical release and mechanical key release can be retrofitted 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 direction of the arrow The safety device 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 retrofitted simply turn the key to unlock For mount ing see the mechanical key release supplement Operating Instructions Read Head CET AX with Guard Locking and Guard Locking Monitoring EUCHNER Emergency unlocking can be retrofitted Guard locking cannot be activated and it must Changing the approach direction Using emergency unlocking Important The door must not be under tension when emer gency unlocking is actuated gt Turn emergency unlocking clockwise until it clicks into place 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 Escape release optional The escape release is used to open a locked safety guard from the inside see dimen
15. r gt EN ISO 13849 1 Safety of machinery Safety re lated parts of control systems General principles for design gt EN 1088 Safety of machinery Interlocking devices associated with guards Principles for design and selection gt EN 60204 1 Safety of machinery Electrical equip ment of machines General requirements The read head is only allowed to be operated in conjunction with the intended EUCHNER CET actua tors and the related connection components from EUCHNER On the use of different actuators or other connection components EUCHNER provides no warranty for safe function The read head CET is only allowed to be used in combination with a system family CES AZ evaluation unit see Table 2 Important gt 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 according to EN ISO 13849 2 gt 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 ap plies in case of discrepancies with the operating instructions gt The PL that can be achieved depends on the installation position and the evaluation unit used Pay attention to the information in Table 2 Exclusion of liability and warranty In case of failure to comply with the conditions for correct use stated above or if the safety instruc
16. ry 2 Remove the lock 3 Move lockout mechanism to basic position Figure 1 A Mounting Caution Safety switches must not be bypassed bridging of contacts turned away removed or otherwise rendered ineffective gt On this topic pay attention in particular to the measures for reducing the possibility of bypassing according to EN 1088 1995 A2 2008 Sec 5 7 Caution Risk of damage to equipment as a result of incorrect installation Safety switches must not be used as a mechanical end stop gt Fit an additional end stop for the movable part of the safety guard gt Observe the min door radii see Figure 3 gt Ensure that the actuator contacts the slide in the designated area see figure below Marks on the slide specify the prescribed approach zone Note the following points Actuator and safety switch must be easily acces sible for inspection and replacement The switching operation must only be triggered by the specific actuator designated 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 safety screws included they cannot be removed or tampered with using simple means gt the active faces of the actuator and the safety switch are parallel to each other see Figure 3 the actuator is fully inserted into the switch recess when the safety guard is closed see Figure 3
17. sion drawing in the section Technical data Fit escape release such that operation inspection and maintenance are possible Using the escape release gt Press the red release knob to the stop The safety device can be opened Pull the knob out again to reset Wire front release optional The wire front release permits remote release of the guard locking via a pull rope Flexible routing of the pull rope permits release of the guard locking in inaccessible installation situations Lockout mechanism optional Important gt The lockout mechanism is not a safety function gt 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 Figure 1 A and B and secure with lock Figure C not be possible to start the machine Important Test this before entering the danger area Resetting the lockout mechanism 1 Open the safety door if necessa
18. ystem and deactivate guard locking gt The guard locking must remain active until there is no longer any risk of injury gt It must not be possible to start the machine as long as the guard locking is deactivated 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 gt Check all additional functions e g escape release lockout mechanism etc Check the secure fastening of the devices and the connections gt 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 type plate Exclusion of liability under the following circumstances gt incorrect use non compliance with safety regulations installation and electrical connection not per formed by authorized personnel gt failure to perform functional checks Installation position Any recommendation actuat ing head downward Degree of protection acc to IEC 60529 IP67 screwed tight with the related mating connector Mechanical life 1 x 106 operating cycles Ambient temperature 20 55 C Actuator approach speed 20 m min max Locking force max 6 500 N Locking force Fa in acc w
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