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Operating Instructions

Non-Contact Safety Switch CES-AH-C03-AE-LS

10

(Translation of the original operating instructions) 2105267-10-08/20

8.4.  Automatic restart and start button

Pay attention to the notes for the following applications:

Automatic start, with a jumper  

(+24 V is continuously present at the START input)

 

¨

The device restarts automatically after faults.

Manual start

 (start via start button)

 

¨

The start button must be pressed after each restart.

 

Ì

A sticking start button (fault due to welding, etc.) is not detected by the device and results in an automatic restart.

DANGER

Danger due to automatic start/restart.
An automatic start/restart can occur:

 

Ì

On closing the guard

 

Ì

On switching on the power supply

 

Ì

On automatic restart after the detection of a fault

 

Ì

Check carefully which start mode is suitable for your application.

 

Ì

Check whether additional measures are necessary to prevent an automatic restart.

8.5.  Safety in case of faults

 

Ì

The operating voltage U

B

 is reverse polarity protected. 

 

Ì

The coLA/LA and +LB/LB are short circuit-proof and protected against reverse polarity.

 

Ì

To prevent switching on of the load connected in the case of a short circuit between LA or LB and the operating voltage 

U

B

, the cables must be laid rigidly and with protection.

8.6.  Fuse protection for power supply

The power supply must be provided with fuse protection depending on the current required for the outputs. If both outputs 

(LA and LB) are used, protect with a max. 10 A fuse.

8.7.  Voltage drop on cables and switch

If a load is applied to the outputs, voltage drops will occur on the supply cables and on the switch.
The voltage drops are to be taken into account during the calculation of the power available in the load connected.

Parameter

Value

Unit

Maximum resistance of an output path

250

m

W

Resistance for further connecting cable  

(e.g. 7 x 1 mm², supply and return cables)

25

m

W

/m

Other connection resistances are to be taken into account as necessary.

8.7.1.  Calculation example

 

Ì

10 m cable from the switch to the supply/load

 

Ì

Supply voltage on the 24 V connection

 

Ì

Load on channel A: 1 A

 

Ì

Load on channel B: 4 A

Содержание CES-AH-C03-AE-LS

Страница 1: ...EN Operating Instructions Non Contact Safety Switch CES AH C03 AE LS Unicode ...

Страница 2: ...estart and start button 10 8 5 Safety in case of faults 10 8 6 Fuse protection for power supply 10 8 7 Voltage drop on cables and switch 10 8 7 1 Calculation example 10 8 8 Connecting cables and plug connectors 11 8 9 Connector assignment of safety switch CES AH 12 8 10 Connection of the CES AH 12 9 Setup 13 9 1 LED displays 13 9 2 Teach in function for actuator 13 9 2 1 Carrying out teach in for ...

Страница 3: ...ion of the original operating instructions Operating Instructions Non Contact Safety Switch CES AH C03 AE LS EN 12 Ordering information and accessories 22 13 Inspection and service 22 14 Service 22 15 Declaration of conformity 23 ...

Страница 4: ...ment is available for download at www euchner com DANGER WARNING CAUTION Safety precautions Danger of death or severe injuries Warning about possible injuries Caution slight injuries possible NOTICE Important Notice about possible device damage Important information Tip Useful information 1 4 Supplementary documents The overall documentation for this device consists of the following documents Docu...

Страница 5: ...in the system family CES AH have special safety outputs that are suitable for the direct switching of large loads In appropriate applications it is therefore not necessary to connect power relays or contactors in between The device interrupts the supply of power to the load if e g the guard is open Correct use includes observing the relevant requirements for installation and operation particularly...

Страница 6: ...f the safeguard should be checked at suitable intervals as part of the maintenance schedule WARNING Danger to life due to improper installation or due to bypassing tampering Safety components fulfill a personnel protection function Ì Safety components must not be bypassed turned away removed or otherwise rendered ineffec tive On this topic pay attention in particular to the measures for reducing t...

Страница 7: ...to the fixed part of the guard The actuator attached to the movable part of the guard is moved towards the read head fitted in the safety switch by closing the door When the operating distance is reached power is supplied to the actuator by the inductive read head 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 outp...

Страница 8: ...hange as a function of the installation depth and the guard material Operating distance Actuator Operating distance Actuator Flush mounting Surface mounting Note the following points Ì Actuator and safety switch must be easily accessible for inspection and replacement Ì Actuator and safety switch must be fitted so that the front faces are at the minimum operating distance 0 8 x Sao or closer when ...

Страница 9: ...ng several milliseconds on switching off the outputs Ì To prevent overvoltages on the inputs and outputs for the safety circuits inductive loads must be connected with free wheeling diodes see chapter 8 10 Connection of the CES AH on page 12 Ì 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 proces...

Страница 10: ...voltage UB is reverse polarity protected Ì The contacts LA LA and LB LB are short circuit proof and protected against reverse polarity Ì To prevent switching on of the load connected in the case of a short circuit between LA or LB and the operating voltage UB the cables must be laid rigidly and with protection 8 6 Fuse protection for power supply The power supply must be provided with fuse protect...

Страница 11: ... Ì Use EUCHNER connectors Ì If other connection components are used the following recommendations apply EUCHNER pro vides no warranty for safe function in case of failure to comply with these requirements Ì The maximum cable length should not exceed 50 m Recommended connecting cable e g LiYY 7 x 1mm Ölflex classic 400P 7 x 0 75 Terminating plug for the mating side AMP Superseal series manufacturer...

Страница 12: ...channel 1 GY 6 2 LA Safety output channel 1 PK 7 3 LB Input for channel 2 YE 5 4 LB Safety output channel 2 GN 4 8 10 Connection of the CES AH GND UB F1 CES AH C03 AE LS UB X1 1 0V X1 2 Start X1 3 LA X2 1 AMP Superseal LA X2 2 LB X2 3 LB X2 4 Load 2 2 3 3 1 1 Load e g valve coil DC motor ohmic load etc 2 In case of inductive loads it is imperative free wheeling diodes are used to protect the outpu...

Страница 13: ...preceding device if teach in is carried out for a new actuator Teach in is not possible again immediately for this device if a new teach in operation is carried out The disabled code is deleted again in the safety switch only after a third code has been taught Ì The safety switch can be operated only with the last actuator taught in Ì If the switch detects an actuator that has already been taught ...

Страница 14: ...are no persons in the danger zone Ì Observe the valid accident prevention regulations 1 Switch on operating voltage Ì The safety switch carries out a self test The green STATE LED flashes for 3 s at 10 Hz The green STATE LED then flashes at regular intervals 2 Close all guards Ì The machine must not start automatically Ì The green STATE LED illuminates continuously 3 Enable operation in the contro...

Страница 15: ... ready for teach in for another actuator only short time after power up Setup closed off 1 Hz Teach in operation X off Positive acknowledgment after completion of teach in operation Fault display X off 2 x Overload e g short circuit on a safety output X off 3 x Over temperature X off 4 x Output fault e g fault on a switching element X off 5 x Internal fault e g component fault data error or short ...

Страница 16: ...B 0 25 10 A Power supply for load U LA U LB UB Power supply for load via PWM Pulse frequency 1 kHz Mark space ratio Ton 10 100 Safety outputs LA LB Semiconductor outputs p switching short circuit proof Output voltage U LA U LB 1 HIGH U LA UB 1 5 UB V DC HIGH U LB LOW U LA U LB 0 4 Testing of the outputs Test pulse length Test interval 10 6 ms s Switching current per safety output 30 4 000 mA Utili...

Страница 17: ...PFHD 1 03 x 10 7 h Mission time 20 years 1 Values at a switching current of 4 A without taking into account the cable lengths 2 After the operating voltage is switched on the semiconductor outputs are switched off during the ready delay 3 The dwell time of an actuator inside and outside the actuating range must be at least 0 5 s to ensure reliable detection of internal faults in the evaluation uni...

Страница 18: ...slight time offset They have the same signal state at the latest after a difference time of 50 ms System times for reset after a fault and normal operation Secondary conditions UB 24 V LA permanently connected with UB LB switched by control system Actuator moved t Actuator Start LA LB LB DIA LED red off on 0 V 24 V 0 V 24 V 0 V 24 V 0 V 24 V None Detected Start Fault detection Occurrence of a faul...

Страница 19: ...ch CES AH C03 AE LS EN 11 3 Dimension drawing and connector assignment PUR PVC X2 4 3 2 1 X1 1 2 3 168 0 3 27 5 34 5 15 40 40 3 40 40 20 30 45 5 90 40 5 3 5 3 7 3 Cable length 2 000 mm LED status indication View of connection side Active face Active face with approach direction C Active face with approach direction A ...

Страница 20: ...data for actuator CES A BRN Parameter Value Unit min typ max Housing material PPS Dimensions 80 x 40 x 15 mm Weight 0 06 kg Ambient temperature 25 70 C Degree of protection IP67 Installation orientation Active face opposite read head Power supply Inductive via read head 11 4 1 Dimension drawing Active face Active face 40 80 10 3 5 5 17 11 17 11 15 8 5 ...

Страница 21: ...hysteresis 1 3 Assured release distance sar 75 1 The values apply to surface installation of the actuator on steel Typical actuating range only in combination with actuator CES A BRN on surface mounting on steel 5 2 0 2 5 3 0 3 5 Z X 5 15 20 50 45 40 35 30 25 50 Y 5 10 15 20 25 30 35 40 45 50 55 60 65 10 5 15 25 30 40 45 50 55 60 65 1 5 1 0 10 20 35 For a side approach direction for the actuator a...

Страница 22: ...es 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 Ì Check the switching function see chapter 9 3 Functional check on page 14 Ì Check the secure mounting of the devices and the connections Ì Check for soiling No servicing is required Repairs to the device are only allowed to be made by the m...

Страница 23: ...ttiva EMC 2014 30 UE La verifica definitiva della con formità dovrà essere eseguita secondo le istruzioni di impiego nell applicazione specifica dal responsabile dell immissione sul mercato Los dispositivos están preparados para cumplir los fines de protección especificados en la Directiva CEM 2014 30 UE La comprobación final de la conformidad debe llevarla a cabo la persona encargada de la comerc...

Страница 24: ...euchner com Edition 2105267 10 08 20 Title Operating Instructions Non Contact Safety Switch CES AH C03 AE LS Translation of the original operating instructions Copyright EUCHNER GmbH Co KG 08 2020 Subject to technical modifications no responsibility is accept ed for the accuracy of this information ...

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