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Diagnostics and troubleshooting

Leuze electronic GmbH + Co. KG

ELC 100

34

10

Diagnostics and troubleshooting

10.1

What to do in case of failure?

After switching the safety sensor on, the display elements (see chapter 3.3 "Display elements") assist in
checking the correct functionality and in faultfinding.

In case of error, you can determine the error from the LED displays. With the error message you can deter-
mine the cause of the error and initiate measures to rectify it.

NOTICE

If the safety sensor responds with an error display, you will often be able to eliminate the
cause yourself!

Ä

Switch off the machine and leave it switched off.

Ä

Analyze and eliminate the cause of the fault using the following table.

Ä

If you are unable to rectify the fault, contact the Leuze branch responsible for you or call the
Leuze customer service (see chapter 11 "Service and support").

10.2

Operating indicators of the LEDs

Tab. 10.1:

LED indicators at the transmitter - causes and measures

LED

State

Cause

Measure

LED 1, red

Flash sequence ON/OFF
(250 ms), followed by OFF
(750 ms)

Overvoltage or undervoltage

Check the correct voltage
supply. Is 24 V present at the
transmitter?

Flashing (10 Hz)

Device error

Replace the transmitter.

LED 2, green OFF

Transmitter without supply
voltage

Check the power supply unit
and the electrical connection.
Exchange the power supply
unit, if applicable.

Tab. 10.2:

LED indicators at the receiver - causes and measures

LED

State

Cause

Measure

LED 1, red

ON

OSSD off

Remove the object from the
protective field or align the
sensor.

Flashing (0.5 Hz)

OSSD error

Check the electrical connec-
tion of the safety outputs.

Flash sequence ON/OFF
(250 ms), followed by OFF
(750 ms)

Overvoltage or undervoltage

Check the correct voltage
supply. Is 24 V present at the
transmitter?

Flashing (10 Hz)

Device error

Replace the receivers.

LED 3, blue

Short pulses

Light reception is disturbed

Check whether there are am-
bient light sources in the in-
put area of the receiver.

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Содержание 72000103

Страница 1: ...We reserve the right to make technical changes EN 2022 01 14 50145374 Original operating instructions ELC 100 Safety Light Curtain ...

Страница 2: ... 2022 Leuze electronic GmbH Co KG In der Braike 1 73277 Owen Germany Phone 49 7021 573 0 Fax 49 7021 573 199 www leuze com info leuze com Leuze electronic GmbH Co KG ELC 100 2 ...

Страница 3: ...ance if protective fields act orthogonally to the approach direction 16 5 1 3 Minimum distance to reflective surfaces 20 5 1 4 Preventing mutual interference between adjacent devices 21 5 2 Mounting the safety sensor 22 5 2 1 Suitable mounting locations 22 5 2 2 Fastening via sliding blocks 23 5 2 3 Fastening via BT 2SB05 swiveling mounting brackets 23 6 Electrical connection 24 6 1 Pin assignment...

Страница 4: ...0 2 Operating indicators of the LEDs 34 11 Service and support 35 12 Technical data 36 12 1 General specifications 36 12 2 Dimensions weight response time 39 12 3 Dimensioned drawings Accessories 40 13 Order guide and accessories 41 13 1 Part number code 41 13 2 Type overview 41 13 3 Accessories 42 14 EC Declaration of Conformity 43 ...

Страница 5: ...y if the measures for danger avoidance are not followed WARNING Signal word for serious injury Indicates dangers that may result in severe or fatal injury if the measures for danger avoidance are not followed DANGER Signal word for life threatening danger Indicates dangers with which serious or fatal injury is imminent if the measures for danger avoidance are not followed Tab 1 2 Other symbols Sym...

Страница 6: ...us failure Mean Time To dangerous Failure OSSD Safety related switching output Output Signal Switching Device PFHd Probability of a dangerous failure per hour Probability of dangerous Failure per Hour PL Performance Level Safety sensor System consisting of transmitter and receiver SIL Safety Integrity Level State ON device intact OSSD switched on OFF device intact OSSD switched off Locking device ...

Страница 7: ...al legal regulations apply for the commissioning techni cal inspections and work with safety sensors Machinery directive 2006 42 EC Low voltage directive 2014 35 EU EMC directive 2014 30 EU OSHA 1910 Subpart O Safety regulations Accident prevention regulations and safety rules Ordinance on Industrial Safety and Health and employment protection act Product Safety Law ProdSG NOTICE For safety relate...

Страница 8: ...o re pairs to the device components The safety sensor must be inspected regularly by a competent person to ensure proper integration and mounting Necessary competencies The safety sensor must be exchanged after a maximum of 20 years Repairs or the exchange of wear parts do not extend the mission time 2 1 2 Foreseeable misuse Any use other than that defined under the Approved purpose or which goes ...

Страница 9: ...cherheitsverordnung Ordinance on Industrial Safety and Health or other national legal regulations 2 3 Responsibility for safety Manufacturer and operator must ensure that the machine and implemented safety sensor function properly and that all affected persons are adequately informed and trained The type and content of all imparted information must not lead to unsafe actions by users The manufactu...

Страница 10: ... ELC 100 safety light curtain is a piece of electro sensitive protective equipment ESPE that consists of a transmitter and a receiver A series of parallel infrared light beams creates a protective field between transmitter and receiver that safeguards the danger zone point of operation access point and danger zone safeguarding As soon as one or more beams are completely interrupted the safety ligh...

Страница 11: ...nction of a device is free of dead zones up to the end of the housing The absence of dead zones reduces space requirements when integrating in the machine 3 2 Connection technology The transmitter and receiver feature an M12 connector as an interface to the machine control with the fol lowing number of pins Device model Device type Device plug ELC 100 Transmitter 4 pin ELC 110 Receiver 4 pin ...

Страница 12: ...tter Tab 3 1 Meaning of the LEDs on the transmitter LED Color State Description 1 Red Flashing Error Flash sequence 2x ON OFF 250 ms followed by a pause 750 ms Connection error Rapid flashing 10 Hz Device error 2 Green OFF Device switched off ON Transmitter switched on 3 3 2 Operating indicators on the ELC 110 receiver 1 2 3 4 5 6 1 LED pair 1 red open OSSD icon 2 LED pair 2 green closed OSSD icon...

Страница 13: ...ce 2x ON OFF 250 ms followed by a pause 750 ms Connection error 2 Green ON OSSD on 3 Blue Flashes Light reception strength 1 ON Light reception strength 2 4 Blue Flashes Light reception strength 3 ON Light reception strength 4 OSSD switches on 5 Blue Flashes Light reception strength 5 ON Light reception strength 6 6 Blue Flashes Light reception strength 7 ON Light reception strength 8 optimum alig...

Страница 14: ... 1 Point of operation guarding Point of operation guarding for hand and finger protection is typically the most common application for this safety sensor The necessary safety distance among other things follows from the various resolutions see chapter 5 1 1 Calculation of safety distance S Fig 4 1 Point of operation guarding ...

Страница 15: ...nd receiver Optical protective devices can only perform their protective function if they are mounted with adequate safety distance When mounting all delay times must be taken into account such as the response times of the safety sensor and control elements as well as the stopping time of the machine among others The following standard specifies calculation formulas ISO EN ISO 13855 Safety of mach...

Страница 16: ...h speed for point of operation guarding with approach reaction and normal approach di rection to the protective field resolution 14 to 40 mm 2000 mm s or 1600 mm s when SRT 500 mm T s Total time of the delay sum from ta ti tm ta s Response time of the protective device ti s Response time of the safety relay tm s Stopping time of the machine CRT mm Additional distance for point of operation guardin...

Страница 17: ...time of the delay sum from ta ti tm ta s Response time of the protective device ti s Response time of the safety relay tm s Stopping time of the machine CRO mm Additional distance in which a body part can move towards the protective device before the pro tective device triggers value see the following table Reaching over the vertical protective field of electro sensitive protective equipment excer...

Страница 18: ... work with the above mentioned table in three ways 1 Given are Height a of the point of operation Distance S of the point of operation from the safety sensor and additional distance CRO To be determined is the required height b of the upper beam of the safety sensor and thereby its protective field height Ä Look for the line with the specification of the point of operation height in the left colum...

Страница 19: ...protective field height The response time of the safety light curtain is 9 5 ms the press Safety PLC has a response time of 40 ms The safety sensor can be reached over The upper edge of the protective field is located at a height of 1400 mm the point of operation is located at a height of 1000 mm Additional distance CRO to the point of operation is 700 mm see table Reaching over the vertical prote...

Страница 20: ...ety sensor be fore start up and at appropriate intervals Ä After mounting check the detection capability of the safety sensor in the entire protective field using a test rod see chapter 8 3 1 Checklist periodically by the operator a b c a Required minimum distance to reflective surfaces mm b Protective field width m c Reflective surface Fig 5 2 Minimum distance to reflective surfaces depending on ...

Страница 21: ...nces receiver 2 due to incorrect mounting CAUTION Possible ineffectiveness of the protective function as a result of systems being installed closely to each other The transmitter of one system can influence the receiver of the other system This can impair the protective function Ä Prevent optical crosstalk between adjacent devices Ä Mount adjacent devices with a shield between them or install a di...

Страница 22: ...ion of safety distance S Is the minimum distance to reflective surfaces maintained see chapter 5 1 3 Minimum distance to reflective surfaces Is it impossible for safety sensors that are mounted next to one another to mutually inter fere with one another see chapter 5 1 4 Preventing mutual interference between adjacent devices Can the point of operation or the danger zone only be accessed through t...

Страница 23: ...direction of slot to set the height is possible but turning tilting and pitching is not Fig 5 6 Mounting via sliding blocks 5 2 3 Fastening via BT 2SB05 swiveling mounting brackets Fig 5 7 Mounting via swiveling mounting brackets BT 2SB05 and M5 screws For increased mechanical requirements these are also available as vibration damped version BT SB05 S Depending on the installation situation enviro...

Страница 24: ...Ä Select the safety relevant functions for the safety sensor see chapter 3 1 Structure and function Ä Always loop both safety related switching outputs OSSD1 and OSSD2 into the work circuit of the machine Ä Signal outputs must not be used for switching safety relevant signals NOTICE SELV PELV Ä Acc to IEC EN 60204 1 the external power supply must demonstrate the ability to bridge short term mains ...

Страница 25: ... ELC 100 receiver connection cable Pin Core color KD U M12 4A P1 xxxx Transmitter 1 Brown 24 V 2 White n c 3 Blue 0 V 4 Black n c 6 1 2 ELC 110 receiver ELC 110 receivers are equipped with a 5 pin M12 connector Fig 6 2 Pin assignment and connection diagram receiver Tab 6 2 Pin assignment of receiver connection cable Pin Core color KD U M12 4A P1 xxxx Receiver 1 Brown 24 V 2 White OSSD1 safety rela...

Страница 26: ...00 26 6 1 3 Circuit diagram example Spark extinction circuit suitable spark extinction provided ELC 110 with MSI SR4B 0x safety relay Observe the operating instructions for the components Fig 6 3 Circuit diagram example with downstream MSI SR4B safety relay ...

Страница 27: ...correctly Operating personnel were instructed in proper use Dangerous process is switched off outputs of the safety sensor are disconnected and the system is protected against being switched back on Ä After start up check the function of the safety sensor see chapter 8 1 Before commissioning and fol lowing modifications 7 1 Switching on Requirements for the supply voltage power supply unit Safe ma...

Страница 28: ... the LEDs see chapter 3 3 Display elements Ä Loosen the screws on the mounting brackets or device columns NOTICE Ä Loosen the screws only enough so that the devices can just be moved Ä Roughly align the transmitter with the receiver The receiver of the ELC is equipped with alignment LEDs that detect the optimum state see chapter 3 3 Display elements The maximum signal level is determined by compar...

Страница 29: ... out the corresponding chapter see chapter 8 3 Periodically by the operator Ä Test the electrical function and installation according to this document Acc to IEC EN IEC 62046 and national regulations e g EU directive 2009 104 EC tests are to be per formed by competent persons Necessary competencies in the following situations Prior to commissioning Following modifications to the machine After long...

Страница 30: ...e safety sensor and point of operation is an assigned start restart interlock functional Is the command device for unlocking the start restart interlock mounted in such a way that it cannot be reached from within the danger zone and so that the complete danger zone can be seen from the installation location Has the maximum stopping time of the machine been measured and docu mented Is the required ...

Страница 31: ... checklist see chapter 8 1 Before commissioning and following modifica tions 8 3 Periodically by the operator The function of the safety sensor must be checked depending on the given risk according to the following checklist so that damages or prohibited tampering can be detected Depending on the risk assessment the test cycle must be defined by the integrator or operating company e g daily on shi...

Страница 32: ...uminate green see chapter 3 3 2 Operating indicators on the ELC 110 receiver Interrupt an active beam or the protective field see figure with a suitable opaque test object Checking the protective field function with Leuze test rod Does the OSSD LED on the receiver illuminate constantly red while the protective field is interrupted When possible test during running operation Yes No Protective devic...

Страница 33: ...roughened at the positions where beams enter and exit Ä Do not use chemical cleaners Prerequisites for cleaning The system is safely shut down and protected against restart Ä Clean the safety sensor periodically depending on the degree of contamination NOTICE Prevent electrostatic charging of the front screens Ä To clean the front screens of transmitter and receiver use only damp cloths Disposing ...

Страница 34: ...perating indicators of the LEDs Tab 10 1 LED indicators at the transmitter causes and measures LED State Cause Measure LED 1 red Flash sequence ON OFF 250 ms followed by OFF 750 ms Overvoltage or undervoltage Check the correct voltage supply Is 24 V present at the transmitter Flashing 10 Hz Device error Replace the transmitter LED 2 green OFF Transmitter without supply voltage Check the power supp...

Страница 35: ...support together with a description Please register the merchandise concerned Simply register return of the merchandise on our website www leuze com under Contact Support Repair Service Returns To ensure quick and easy processing of your request we will send you a returns order with the returns ad dress in digital form What to do should servicing be required NOTICE Please use this chapter as a mas...

Страница 36: ...0 mA OSSD load Residual ripple of the supply voltage 5 within the limits of Uv Current consumption transmitter 40 mA Current consumption receiver 100 mA without load Common value for ext fuse in the supply line for transmitter and receiver 2 A semi time lag CULus range of validity Connection with cables acc to the listed R C CYJV2 7 or CYJV 7 cables or cables with corre sponding data Synchronizati...

Страница 37: ...8 V 22 5 V 27 V Switching voltage low 0 V 2 0 V Switching current 50 mA Residual current 500 µA In the event of a failure if the 0 V ca ble is interrupted each of the outputs behaves as a 120 kΩ resistor to Uv A downstream safety PLC must not de tect this as a logical 1 Load capacity 30 nF Load inductivity 500 mH Permissible wire resistance for load 20 Ω Note the additional restrictions due to cab...

Страница 38: ...form the spark extinction With transistor outputs it is therefore neither necessary nor permitted to use the spark extinction circuits recommended by contactor or valve manufacturers RC elements varistors or recovery diodes since these con siderably extend the decay times of inductive switching elements ...

Страница 39: ...Tab 12 6 Dimensions weights and response times of transmitter and receiver Device type Transmitter and receiver Transmit ter Receiver Receiver Type Dimension mm Weight kg Response time ms PF protective field length A total length 17 mm 30 mm ELC 300 300 315 0 51 0 53 5 6 4 7 ELC 600 600 615 0 91 0 93 9 5 5 6 ELC 900 900 915 1 31 1 33 13 4 7 5 ELC 1200 1200 1215 1 71 1 73 17 3 9 5 ELC 1500 1500 151...

Страница 40: ...Technical data Leuze electronic GmbH Co KG ELC 100 40 12 3 Dimensioned drawings Accessories Fig 12 2 Swiveling mounting bracket for groove mounting BT SB05 ...

Страница 41: ...ion 17 mm protective field height 600 mm ELC100T30 900 Type 4 transmitter PL e SIL 3 resolution 30 mm protective field height 900 mm ELC110R30 1500 Type 4 receiver PL e SIL 3 resolution 30 mm protective field height 1500 mm Scope of delivery Transmitter including 2 sliding blocks 1 instruction sheet Receiver including 2 sliding blocks 1 self adhesive notice sign Important notices and notices for t...

Страница 42: ... ELC110R30 1200 72001312 1200 30 ELC110R30 1500 72001315 1500 30 13 3 Accessories Tab 13 4 Accessories Part no Article Description Connection cables for transmitter and receiver unshielded 50130654 KD U M12 4A P1 020 Connection cable 4 pin 2 m long 50130656 KD U M12 4A P1 030 Connection cable 4 pin 3 m long 50130657 KD U M12 4A P1 050 Connection cable 4 pin 5 m long 50130658 KD U M12 4A P1 100 Con...

Страница 43: ...ity Leuze electronic GmbH Co KG ELC 100 43 14 EC Declaration of Conformity The safety light curtains of the ELC 100 series have been developed and manufactured in accordance with the applicable European standards and directives ...

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