instructions - pepperl+fuchsfiles.pepperl-fuchs.com/.../navi/productinfo/doct/tdoct1495e_eng.pdf ·...

Safety Light Curtain SLCSOriginal Instructions

Sicherheits-Lichtvorhang SLCSOriginalbetriebsanleitung

EN

DE

FACTORY AUTOMATION

INSTRUCTIONS

With regard to the supply of products, the current issue of the following document is applicable: The General Terms of Delivery for Products and Services of the Elec-trical Industry, published by the Central Association of the Electrical Industry (Zen-

tralverband Elektrotechnik und Elektroindustrie (ZVEI) e.V.) in its most recent version as well as the supplementary clause: "Expanded reservation of proprietor-

ship"Es gelten die Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie, herausgegeben vom Zentralverband Elektroindustrie (ZVEI) e.V. in ihrer neusten Fassung sowie die Ergänzungsklausel: "Erweiterter Eigentumsvor-

behalt".

EN

DE

Safety Light Curtain SLCS

Safety Light Curtain SLCSContents

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1 Introduction......................................................................... 32 Declaration of conformity .................................................. 4

2.1 Declaration of Conformity..............................................................................4

3 Safety................................................................................... 53.1 Symbols relevant to safety ............................................................................53.2 Intended use .................................................................................................53.3 General Safety Information ............................................................................5

4 Product Description ........................................................... 74.1 Use and Application......................................................................................74.2 Indicators and Operating Controls ................................................................84.3 Interfaces and connections ...........................................................................94.4 Delivery package ........................................................................................10

5 Installation......................................................................... 115.1 Preparation .................................................................................................115.2 Mounting.....................................................................................................135.3 Reflection....................................................................................................155.4 Connection and Operating Mode Setting ....................................................16

5.4.1 Signal outputs on the receiver unit..........................................................175.4.2 Signal Inputs on the Transmitter Unit ......................................................185.4.3 Signal Inputs on the Receiver .................................................................195.4.4 Typical circuits ........................................................................................21

6 Commissioning................................................................. 226.1 Functional Testing .......................................................................................226.2 Multiple Positions ........................................................................................22

7 Maintenance and Repair .................................................. 247.1 Maintenance ...............................................................................................247.2 Repair .........................................................................................................24

8 Troubleshooting................................................................ 258.1 Troubleshooting ..........................................................................................25

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Safety Light Curtain SLCSContents

EN

9 Appendix........................................................................... 269.1 Technical Data............................................................................................ 26

9.1.1 Standards .............................................................................................. 289.2 Profile length and weight ............................................................................ 299.3 Dimensional drawing.................................................................................. 309.4 Designation Code ...................................................................................... 319.5 Response times ......................................................................................... 339.6 Periodic Checks ......................................................................................... 349.7 Application Checklist.................................................................................. 359.8 Accessories................................................................................................ 36

9.8.1 Mounting Aid OMH-SLCT-01 ................................................................. 379.8.2 Mounting Aid OMH-SLCT-02 ................................................................. 399.8.3 Mounting Aids OMH-SLCT-03 and OMH-SLCT-04 ................................ 399.8.4 Mounting aid OMH-SLCT-05................................................................. 419.8.5 Alignment aid......................................................................................... 429.8.6 Test rod.................................................................................................. 429.8.7 Connection Cables ................................................................................ 43

Safety Light Curtain SLCSIntroduction

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1 IntroductionCongratulationsYou have chosen a device manufactured by Pepperl+Fuchs. Pepperl+Fuchs develops, produces and distributes electronic sensors and interface modules for the market of automation technology on a worldwide scale.Before you install this device and put it into operation, please read the operating instructions thoroughly. The instructions and notes contained in this operating manual will guide you step-by-step through the installation and commissioning procedures to ensure trouble-free use of this product. By doing so, you:

■ guarantee safe operation of the device■ can utilize the entire range of device functions■ avoid faulty operation and associated errors■ reduce costs from downtimes and incidental repairs■ increase the effectiveness and operating efficiency of your plant.

Store this operating manual somewhere safe in order to have it available for future work on the device.Directly after opening the packaging, please ensure that the device is intact and that the package is complete.ContactIf you have any questions about the device, its functions, or accessories, please contact us at:Pepperl+Fuchs GmbHLilienthalstraße 20068307 MannheimTelephone: +49 621 776-4411Fax: +49 621 776-274411E-Mail: [email protected] usedThe following symbols are used in this manual:

Handling instructionsYou will find handling instructions beside this symbol

Note!This symbol draws your attention to important information.

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Safety Light Curtain SLCSDeclaration of conformity

EN

2 Declaration of conformity2.1 Declaration of Conformity

This product was developed and manufactured under observance of the applicable European standards and guidelines.

The product manufacturer, Pepperl+Fuchs GmbH, 68307 Mannheim, Germany, has a certified quality assurance system that conforms to ISO 9001.

Note!A Declaration of Conformity can be requested from the manufacturer or downloaded from www.pepperl-fuchs.com.

ISO9001

Safety Light Curtain SLCSSafety

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3 Safety3.1 Symbols relevant to safety

3.2 Intended useThe SLCS safety light curtain may only be used in accordance with its intended purpose as electro-sensitive protective equipment (ESPE) for securing hazardous areas and dangerous locations.If used for any other purpose, the intended function of the system can no longer be guaranteed.In addition to the notes in these instructions, the safety regulations, standards and other regulations concerning the application must be taken into consideration.

3.3 General Safety InformationOnly instructed specialist staff may operate the device in accordance with the operating manual.The following basic instructions must be observed at all times:

■ The device must not be commissioned until the manual has been read and understood

■ The device must not be used out of specification without suitable protective measures

■ Tampering with the device is not permitted■ Do not remove the warnings or rating plates

Before selecting and using the product, an assessment must be made to determine whether it is suitable for the application in question. Pepperl+Fuchs has no influence on the selection and use of this product. Liability is therefore restricted to the consistent quality of the product.

Danger!This symbol indicates an imminent danger.Non-observance will result in personal injury or death.

Warning!This symbol indicates a possible fault or danger.Non-observance may cause personal injury or serious property damage.

Caution!This symbol indicates a possible fault.Non-observance could interrupt the device and any connected systems and plants, or result in their complete failure.

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Safety Light Curtain SLCSSafety

EN

The product must be regularly checked and maintained by specialist personnel. The outcome of inspection and maintenance work must be documented. Only original spare parts from Pepperl+Fuchs may be used for repairs.Use only recommended original accessories.see chapter 9.8The operating company bears responsibility for observing locally applicable safety regulations.User modification and or repair are dangerous and will void the warranty and exclude the manufacturer from any liability. If serious faults occur, stop using the device. Secure the device against inadvertent operation. In the event of repairs, return the device to your local Pepperl+Fuchs representative or sales office.

Store the device in the original packaging when not in use. This offers the device optimal protection against impact and moisture.

Note!Observe the laws and guidelines applicable to the use or intended purpose. The device is only approved for appropriate and intended use. Ignoring these instructions will void any warranty and absolve the manufacturer from any liability.

Note!DisposalElectronic waste is hazardous waste. When disposing of the equipment, observe the current statutory requirements in the respective country of use, as well as local regulations.

Safety Light Curtain SLCSProduct Description

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4 Product Description4.1 Use and Application

Features■ Type 4 opto-electronic safety device in accordance with EN IEC 61496-1■ Self-testing■ Obstacle size, depending on type, 14 mm, 30 mm, 60 mm, 90 mm■ Protection field heights up to 1200 mm (SCLS14)■ Protection field heights up to 2400 mm (SLCS30, SLCS60, SLCS90)■ Protection field grid, 100 mm (SLCS14, SLCS30)■ Protection field grid, 300 mm (SLCS60, SLCS90)■ Selectable startup/restart interlock■ Selectable relay monitor■ Simple layout■ IP65 protection■ 2 OSSDs (Output Signal Switching Devices)

DescriptionThe SLCS safety light curtain consists of an transmitter and a receiver. The protection field is formed by infrared light beams sent from the transmitter to the receiver. The offset between the individual light beams determines the minimum obstruction size (14, 30, 60 or 90 mm) that can be reliably detected in the entire protection field range.The transmitter contains a certain number of transmitter diodes that emit protective beams. The number of transmitter diodes is determined by the protection field height and size of the obstacle. The A/B mode function allows the use of two safety light curtains in close proximity.The receiver unit detects the transmitted beams, controls the two OSSD safety outputs and carries out tests to ensure safety.In addition to the displays behind the front panel of the receiver unit, there is one pnp output, which indicates operational readiness, a dirty lens, or fault states. If an internal fault occurs in the receiver unit, this output switches on and off at a frequency of 5 Hz. If an external fault occurs, this output switches on and off at a frequency of 1 Hz. If the received signal is too weak (e.g. due to a dirty lens), the output switches on and off at a frequency of 2.5 Hz.The test input on the transmitter initiates a test sequence. Activate the input by applying 24 VDC to the input for a defined period of time.The relay monitor (RM) and restart (RI) inputs allow monitoring of the switching elements connected externally to the OSSDs and activation of the startup/restart interlock function.

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Figure 4.1 Schematic diagram of a detection device

4.2 Indicators and Operating ControlsThe transmitter has two LEDs to display its operating status.The receiver has five LEDs to display its operating status.

Figure 4.2 Displays from the transmitter unit and receiver unit

Transmitter unit

24 V supply 24 V supply

OSSDs

Status / Select RI-RM

Restart Interlock (RI)

Relay Monitor (RM)

Beam Code A/B

Protection

Receiver unit

Test

Beam Code A/B

No. Designation LED color Description1 Power LED Green Transmitter and receiver units operating2 A/B mode,

statusYellow Indicator flashing at 1 Hz: testing time exceeded

or A/B mode input level changeIndicator flashing at 5 Hz: internal fault

3 OSSD OFF Red OSSDs switched off4 OSSD ON Green OSSDs switched on

1 Power green

2 Mode A/B, Status yellow

3 OSSD OFF red

4 OSSD ON green

5 Restart/Status yellow

6 Mode A/B yellow

Transmitter unit Receiver unit

1

2

3

5

4

6

1


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4.3 Interfaces and connectionsThe electrical connections of the safety light curtain are made using M12 connectors. The transmitter has a 4-pin connector and the receiver an 8-pin connector.Connect the power supply and the test signal to the transmitter unit. In addition, the mode can be selected via the A/B mode input. Connect the fail-safe outputs (OSSD), the status/select output and the inputs for the startup enable, relay monitor and A/B mode to the receiver unit.The housing profile is connected internally to +24 V and 0 V with approx. 2.3 MOhm// 33 nF. Internal varistors limit any surges that occur at approx. 85 V. A separate grounding or connection between the housing and functional ground is not required.Transmitter:

Figure 4.3 Pin assignment transmitter unit

5 Restart/status Yellow On: protection field free: system ready to startIndicator flashing at 1 Hz: external faultIndicator flashing at 2.5 Hz: insufficient function reserveIndicator flashing at 5 Hz: internal fault

6 Mode A/B Yellow Off: mode AOn: mode B

No. Designation LED color Description

1 24 V DC2 Mode A/B3 0 V DC4 Test

1

3

42

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Receiver:

Figure 4.4 Pin assignment receiver unit

4.4 Delivery packageThe delivery package contains:

■ Packaging unit 1: Transmitter■ Packaging unit 2: Receiver■ Operating instructions■ Test rod

Bracket and cable are not included in the delivery package. Visit http:\\www.pepperl-fuchs.com for a selection of compatible mounting brackets and recommended cables.

1 Restart Interlock (RI)2 24 V DC3 Relaismonitor (RM)4 Status / Select RI-RM5 OSSD 16 OSSD 27 0 V DC8 Mode A/B

1

4

6

78

53

2

Safety Light Curtain SLCSInstallation

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5 Installation5.1 Preparation

Safety distanceA minimum distance must be maintained between the protection field and the hazardous area to ensure potentially dangerous movements are brought to a stop before there is contact with a person.

Figure 5.1 Minimum distance between protection field and hazardous area

This distance is calculated from the lag time of the machine, the response time of the safety system, and the speed of movement of the person entering the hazardous area (EN ISO 13855).To comply with the necessary distances in the event that the protection field spreads, please refer to Table 1 of EN ISO 13855 to check the minimum distance for a vertically located protection field. If the table gives you a reading of 0, determine the minimum distance with the following formula:S = K x T + CThe following applies to a protection field installed perpendicular to the hazardous area:

S Minimum safety distance in mm, i.e., the distance between hazardous area and protection field

K Constant in mm/s for the speed of approach, based on the detection capacity of the sensor

T Total response time of the safety device in s (T = t1 +t2)

t1 Response time of the safety device see chapter 9.5

t2 Machine lag timeC Additional distance in mm. See table

Number of beams/resolution

14 mm 30 mm 60 mm 90 mm

0 mm 128 mm 850 mm 850 mmFor arrangements other than a perpendicular arrangement of the protection field, see also EN ISO 13855.

Danger zone

Minimum interval S

Sending unit

Protective field

Receiving unit

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Notes on setting up safety light curtainsThe safety device must be arranged in such a manner that it is impossible to reach over, reach under, or walk behind the protection field. If the distance from the safety device is too great, additional safety equipment must be put in place (see illustration below).

Reaching overThe user must not be able to reach over the protection field and into the hazardous area (A: protection field, B: mechanical protection).

Walking behindThe machine operator must not be able to walk between the light curtain and into the hazardous area (A: protection field, B: mechanical protection).


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5.2 MountingVarious brackets are available for securing the safety light curtain (see chapter 9.8).Mounting1. Align the transmitter and receiver so that they are parallel with one another and

at the same height.2. Align the transmitters and receivers parallel with one another.3. The function reserve indicator helps with correct alignment.When installing the safety light curtain in a danger zone, a minimum distance must be maintained between the protection field and the danger zone. This distance will guarantee that movements that pose a danger to a person can be brought to a stop before that person comes in contact with the source of danger.The distance is calculated from the lag time of the machine, the response time of the safety light curtain and the speed of movement of the person entering the hazardous area (EN ISO 13855, EN ISO 13857).Vertical approach

Figure 5.2 Explanation of the safety distance in a vertical arrangement of the protective field

Where K = 2000 mm/s and C = 0 mm, e.g., for SLCS14… or C = 128 mm, e.g., for SLCS30... the calculation formula for a distance S of 105 mm up to and including 500 mm is:S = 2000 mm/s * (t1 + t2) + C

S = 1600 mm/s * (t1 + t2) + CS must be at least 500 mm. Lower results must be corrected to a minimum distance of 500 mm.

Distance S

Protective field

Dangerzone

Note!If S is greater than 500 mm, then K = 1600 mm/s must be used for calculations:

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Example: vertical arrangementt1 = 50 mst2 = 300 msHand protection C = 128 mm

S = 2000 mm/s * (350 * 10-3 s) + 128 mmS = 700 mm + 128 mm = 828 mmAs S is > 500 mm, a smaller value can also be determined: S = 1600 mm/s * (350 * 10-3 s) + 128 mm = 688 mmThe minimum distance between the protection field and hazardous area must therefore be 688 mm.Parallel approach

Figure 5.3 Explanation of the safety distance in a horizontal arrangement of the protective field

If the safety light curtain is aligned in a horizontal position, the safety distance S will also depend on the height of the light curtain above the floor. The maximum height H must not exceed 1000 mm.

This must be taken into consideration in the risk analysis, otherwise additional protection will be required.The safety distance is calculated as follows:S = 1600 mm/s * (t1 + t2) + (1200 mm - 0.4 H)(1200 mm - 0.4 H) 850 mm is also required.

Distance S

H (height above ground)

Protective field

Dangerzone

Note! If H is greater than 300 mm, there is a risk that access underneath the safety light curtain will be possible.


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5.3 Reflection

Ensure that there are no reflective objects within the transmitter or receiver path that could deflect the beams around an obstruction (EN 61496-2).

Only in this way can you ensure that an object will be reliably detected by a beam in the light grid. The minimum distances are listed in the table.Minimum Distance Between Protection Field and Reflective Surfaces

Reflecting object outside beam area

Obstacle

Sending unit Receiving unit

Minimum interval a

Note!When positioning the light grid, ensure that a minimum distance to reflecting objects or surfaces is maintained. This distance from the protection field must be maintained on all sides.

Protection field width/range [m] Minimum distance [mm]0,2 - 3,0 1354,0 1755,0 2206,0 2658,0 35010 45015 66020 880

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5.4 Connection and Operating Mode SettingBoth the power supply and the system settings can be connected to the transmitter and receiver. The following operating mode settings are also available:

■ Startup interlock operating mode■ Relay monitor operating mode■ A/B operating mode

Startup interlock operating mode

The startup/restart interlock ensures that after the power supply has been turned on, or after an interruption in the protection field, the "ready to start" status is signaled when the protection field is free and the startup enable has to be activated in order for the safety light curtain to switch on the OSSDs.

An NC contact between the restart and + 24 VDC input is required to trigger the startup/restart interlock. The startup/restart interlock function does not work if the restart input is connected to the status/select output. If the input is not connected, the startup/restart interlock is activated (see chapter 5.4.4).Relay monitor operating mode

The relay monitor input monitors the switching positions of the downstream relays. If the switching position of the relay does not match the signal from the OSSDs, the system switches to safe mode. The status LED indicates that safe mode is active.

NC contacts from the switching elements must be placed between 24 VDC and the relay monitor input in order to activate the relay monitor. The relay monitor function is deactivated if the relay monitor input is connected to the status/select output.

Note!When the input is open, the startup/restart interlock is activated.

Note!The function can be activated or deactivated at the 8-pin connector of the receiver SLCS.

Note!An open relay monitor input results in a fault. The yellow indicator LED flashes at a frequency of 1 Hz in the event of a fault.

Note!The function can be activated or deactivated at the 8-pin connector of the receiver SLCS.


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A/B operating mode

Operating mode A or operating mode B must be configured both on the transmitter and on the receiver. The modes are used to prevent mutual interference from adjacent SLCS safety light curtains (see chapter 6.2).The operating mode is selected by connecting the A/B mode input. When connected to 0 V (recommended) or an open input, the safety light curtain operates in mode A.

5.4.1 Signal outputs on the receiver unitStatus/Select RI-RM outputThe output indicates the same states as the restart/status indicator.This signal output indicates operational readiness and is active when the protection field is free and startup enable can be activated in order to switch on the OSSD. Internal or external faults and a dirty lens, are also signaled at this output.If an external fault occurs, the output switches on and off at a frequency of 1 Hz. The following faults may be the cause:

■ Relay monitor faulty■ Low supply voltage■ Short or crossed circuits at the OSSD outputs■ Level change at the mode input during operation

Internal faults cause the output to switch on and off at a frequency of 5 Hz.If the safety light curtain is not adjusted correctly or the front lenses are not clean, the output switches on and off at a frequency of 2.5 Hz. The output is also used to define the preset operating mode during startup. Bypassing this output to the restart and/or relay monitor inputs deactivates the relevant operating mode.OSSDsThe receiver has two safe outputs, which are short circuit and cross circuit proof. The OSSDs switch off as soon as a light beam is interrupted. The switching time specifications appear in chapter (see chapter 9.5).

Note!If the A/B mode input is open, the system operates in mode A.

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5.4.2 Signal Inputs on the Transmitter UnitTest inputConnect the test input to 24 VDC via an NC contact. The test function is triggered by opening the contact.

The test input is used to start a complete test of the safety light curtain. During this process, the OSSDs are switched off and all system components are checked.Fault messages from the transmitter unit are acknowledged by initiating a test.

The time constraints of the test signal must be maintained for a test to be successful ( see Figure 5.4 on page 18). The time offset between the test request and the response in the OSSDs is a minimum of 6 ms for an SLCS30-600 safety light curtain, for example, and a maximum of 18 ms. An actuation time of the test input less than 0.02 s or greater than 2.4 s switches the transmitter to a fault state.

Figure 5.4 Graphs of the OSSD switching states when initiating a test or reset

Note!During operation without a startup/restart interlock, the test time must be limited to 150 ms.

Note!A complete test is also carried out when the operating voltage is switched on. This also applies to the receiver unit, which does not have a test input.

Note!In the event of an error, an error reset can be triggered by activating the input for between 1.2 s and 2.4 s.

Min. 0,4 x response timeMax. 0,8 x response time

Min. 0,4 x response timeMax. 1,2 x response time

min. 20 ms / max. 2,4 s

high

low

ON

OFF

OSSDs

Test


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A/B mode inputThe A/B mode input is located both on the transmitter and on the receiver. If the input is open or connected to 0 V, the safety light curtain operates in mode A. The inputs must be connected to the supply voltage to switch to mode B.After the power supply is switched on, the transmitter or receiver selects mode A or mode B, depending on the applied voltage.

If the level at the input changes during operation, this is identified as a fault and the system switches to safe mode.

5.4.3 Signal Inputs on the ReceiverConnect the restart (RI) and relay monitor inputs to the receiver with NC contacts that switch 24 VDC. The function is triggered if the external control contact is open for a defined period.Restart (RI), startup/restart interlock inputThe startup/restart interlock prevents the OSSDs from switching to ON after the protection field is cleared or after the power supply is turned on when the protection field is free. The safety function is only activated once the startup enable button has been pressed.

Position the startup enable button by the hazardous area so that■ the hazardous area is clearly visible and■ activation from within the hazardous area is not possible or cannot initiate a

response (protection field is interrupted when the button is pressed).An NC contact that switches the power supply must be connected to the input to activate the function. To disable the function, the input must be connected to the status/select output. An open input also activates the startup/restart interlock.The input signal time is monitored and the signal should be active for 0.2 s to 1.2 s.In the event of a fault, a fault reset can be triggered by pressing the button for between 1.2 s and 2.4 s.

Note!Make sure that the transmitter and receiver are operating in the same mode.

Note!If no people are in the hazardous area and the hazardous area is vacant, the startup enable can be issued.

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Relay monitor inputAuxiliary contacts on switching elements connected downstream of the OSSDs can be connected to the relay monitor input. This allows these elements to be monitored. Use NC contacts (see chapter 5.4.4). All monitored switching elements must be connected in series. One end of this series connection must be connected to the positive power supply and the other end to the relay monitor input.The feedback contacts on the external switching elements must guarantee a reliable contact at a voltage of 20 VDC and a current of 5 mA. A surge voltage strength of 6 kV must be guaranteed between the feedback contacts and other contacts connected to a low voltage according to the Low Voltage Directive.If the external switching element is not activated within 200 ms, this is identified as a fault and safe mode is activated.To disable the function, the input must be connected to the status/select output. An open input also activates the relay monitor function.A/B mode inputThe mode input is located both on the transmitter and on the receiver. If the input is open or connected to 0 V, the safety light curtain operates in mode A. The inputs must be connected to the supply voltage to switch to mode B.After the power supply is switched on, the transmitter or receiver selects mode A or mode B, depending on the applied voltage. Make sure that the transmitter and receiver are operating in the same mode.If the level at the input changes during operation, this is identified as a fault and the system switches to safe mode.


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5.4.4 Typical circuits

Figure 5.5 Connection example with relay monitor and restart in Mode A

Figure 5.6 Connection example without relay monitor and without restart in Mode A

24 V

0 V

Test


Res

tart

Rel

ay m

onito

r

Restart

24 V

Relay monitor

Status / Select

OSSD1

OSSD2

0 V

Mode A/B

24 V

Mode A/B

0 V

Test

K1 K2

K2.1

K1.11

2

3

4

5

6

7

8

1

2

3

4


Restart

24 V

Relaismonitor

Status / Select

OSSD1

OSSD2

0 V

Mode A/B

24 V

Mode A/B

0 V

Test

24 V

0 V

Test

Res

etE

rror

optio

nal

1

2

3

4

5

6

7

8

1

2

3

4

K1 K2

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Safety Light Curtain SLCSCommissioning

EN

6 Commissioning6.1 Functional Testing

1. Check whether the transmitter and receiver are aligned parallel to one another and are at the same height.

2. Switch on the safety light curtain when the protection field is clear.3. Adjust the transmitter and receiver so that the reception signal exceeds the

function reserve. If the reception signal falls below the function reserve, the yellow

restart/status LED on the receiver flashes.4. Check whether the two OSSD outputs are switching on correctly. The Ready

to start message appears unless this operating mode is deactivated by an external circuit.

5. Use the accompanying test rod to test the detection capability of the safety light curtain to find any detection gaps caused by reflective surfaces. (see chapter 9.8.6).

6. Check the effectiveness of the switch-off function of the safety light curtain and the response time of the safety function when a beam is interrupted.

Check the function of the test input when the protection field is free. The OSSDs must switch off when 24 V is applied to the test input. Switch on the OSSDs again after the test is successfully completed.

6.2 Multiple Positions

The illustrations below show the preferred layout options.

Figure 6.1 Multiple layout with the same beam coding (Mode)

Note!If you are using the startup/restart interlock operating mode, test whether the lock is enabled when the power is turned on and after the protection field is interrupted.

Note!If several safety light curtains/safety light grids are operating close to each other, care must be taken to prevent any mutual interference.

R1 T1 T2 R2

Safety Light Curtain SLCSCommissioning

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If the transmitter and receiver of two safety light curtains are operated in different modes, an arrangement according to the following figures can also be chosen.

Figure 6.2 Multiple layout with different beam coding (mode)

When operating two safety light curtains with different modes – A and B – another arrangement is possible by positioning the transmitters and receivers directly on top of each other. The terminating plugs extend outwards in the opposite direction. The SLCS30 provides a continuous protection field that is divided into 2 security areas. This arrangement can be configured using safety light curtains with a maximum protection field height of 1200 mm per strip. The height of the continuous protection field can therefore reach a maximum of 2400 mm.

Figure 6.3 Head to head arrangement with different beam coding (Mode)

Mode A Mode B

E1 S1 E2 S2

Caution!Position with different beam codingTo prevent dangerous operating conditions, select a different beam coding (Mode) on both transmitters and receivers. Operating in this position with the same beam coding may lead to undefined protection fields with the result that the safety function cannot be guaranteed.

Mode A

Mode B

R1 T1

T2R2

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Safety Light Curtain SLCSMaintenance and Repair

EN

7 Maintenance and Repair7.1 Maintenance

The safety light grid is maintenance-free.The prescribed periodic checks must be performed and documented. The checks must determine whether the components are fitted securely and whether the optical surfaces are clean.

7.2 RepairThe devices must not be repaired, changed or manipulated. If there is a defect, the product must always be replaced with an original device.

Note!Use a damp, soft, lint-free cloth to clean the surfaces, especially the covering of the optical system. Alcohol or mineral spirits may be used as cleaning fluids. Other cleaning agents are not permitted as they may damage the surfaces.

Note!If it appears that safe operation of the sensor system is no longer possible, it must be taken out of operation and secured against inadvertent use.

Safety Light Curtain SLCSTroubleshooting

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8 Troubleshooting8.1 Troubleshooting

If a fault occurs, press the test contact (Reset). The receiver removes the fault state by performing a system reset.If this process does not correct the fault, attempt to return to normal mode by switching off the power supply for at least 1 second, then switching it back on again.Eliminating Interference

Note!Always carry out a function check on the device after correcting a fault.

Source of fault Cause ActionTransmitter:Status indicator flashes at 1 Hz

External fault: a) Test signal faultyb) A/B mode input error

a) Check test sequenceb) Check wiring A/B input mode

Transmitter:Status indicator flashes at 5 Hz

Internal error Briefly interrupt power supply or press the restart button. If the error occurs again, send for repair.

Receiver:Status indicator flashes at 5 Hz

Internal error Briefly interrupt power supply or press the restart button for approx. 1.5 s. If the error occurs again, send for repair.

Receiver:Status indicator flashes at 2.5 Hz

Insufficient function reserve

Clean the front panels; adjust the transmitter and receiver.

Receiver:Status indicator flashes at 1 Hz

External error:a) Relay monitor errorb) Low voltagec) A/B mode input errord) OSSD error

a) Check relay monitor connectionb) Check the supply voltagec) Check A/B input mode wiringd) Check the OSSDs for crossed or short circuits

Receiver:OSSD status LED lights up red

Beam interrupted or adjustment error

Remove object from protection field or adjust transmitters and receivers.

Receiver:"Ready to start" status indicator cannot be acknowledged

Faulty restart button connection

Check restart connection

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Safety Light Curtain SLCSAppendix

EN

9 Appendix9.1 Technical Data

General specifications

Indicators/operating means

Electrical specifications

Inputs on the transmitter

Effective detection range

0.4 ... 8 m

Light source IREDLight type modulated infrared light , 850 nmLED risk group designation

Free group in accordance with DIN EN 62471

Protection field height See chapter 9.2Operating mode Startup/restart disable, deactivateableDetectable obstacle size (resolution)

SLCS14:14 mm; SLCS30: 30 mm; SLCS60: 60 mm; SLCS90: 90 mm

Angle of divergence 5 °Ambient light limit Immune to ambient light, conforming to IEC 61496-2

Operation indicator green: Power onFunction indicator Green: OSSD ON , Red: OSSD OFFStatus indicator Transmitter unit: LED yellow: Mode, test or error

Receiver: LED yellow: Start readiness, function reserve or error

Operating voltage 24 V DC (-20%, +30%) ; Power supply with safe isolation: 24 V DCThe upstream power supply for a safety light curtain must be capable of withstanding power failures of up to 20 ms.

No-load supply current Transmitter unit: 150 mA Receiver: 150 mA (without outputs)

Power consumption Transmitter unit: 5 W Receiver: 15 W

Protection class III , IEC 61140

Test inputInput format Break contactSwitching voltage 24 V DC (acting on the contact)Input current 5 mAActuation time 0.02 s ... 2.4 s


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ENInputs on the receiver unit

Outputs on the receiver

Ambient conditions

A/B mode input Function Beam Code A: open or 0 V

Beam Code B: 24 V DC, 5 mA

Relay monitor inputInput format Break contactSwitching voltage 24 V DC (acting on the contact)Input current 5 mAActuation time < 200 msStartup enable inputInput format Break contactSwitching voltage 24 V DC (acting on the contact)Input current 5 mAActuation time 0.2 ... 1.2 sA/B mode inputFunction Mode A: open or 0 V

Mode B: 24 VDC, 5 mA

OSSD outputSignal output PNP semiconductor , monitored for short and cross circuitsSwitching voltage ON: UB - 2 V; OFF: < 1 VSwitching current ON: max. 0.1 A; OFF: < 5 µALoad inductance (max.) 1.0 HLoad capacitance (max.)

220 nF

Note The outputs are permanently monitored by short (max. 120 µs) sampling pulses. You must ensure that this has no effect on the downstream circuit.

Signal outputOutput format PNP, short-circuit-proofSwitching current 0.1 A

Ambient temperature -30 ... 60 °C (-22 ... 140 °F)Storage temperature -30 ... 70 °C (-22 ... 158 °F)Relative humidity max. 95 %, not condensing

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Mechanical specifications

9.1.1 StandardsFunctional Safety Data

Conformity with Standards and Directives

Housing length L See chapter 9.3Degree of protection IP65 , For indoor use onlyConnection Transmitter unit: 4-pin, M12 x 1 connector

Receiver: 8-pin, M12 x 1 connector Cable cross section min. 0.25 mm2Max. cable length 50 m

MaterialHousing extruded aluminum section , gold anodizedOptical face Plastic pane , Transparent polycarbonateMass See chapter 9.2

Safety Integrity Level (SIL)

SIL 3

Performance Level (PL) PL eCategory Cat. 4Life time (TM) 20 aType 4PFHd SLCS14-300: 1.36E-81

SLCS14-600: 1.67E-8SLCS14-900: 1.94E-8 SLCS30-600: 1.31E-8 SLCS30-900: 1.43E-8 SLCS30-1200: 1.55E-8 SLCS30-1800: 1.79E-8 SLCS30-2400: 2.00E-8 SLCS60-xxxx: 1.69E-8 SLCS90-xxxx: 1.58E-8 The PFHd values specified apply up to the maximum ambient temperature

1.Finger protection, 14 mm up to a protection field height of 300 mm -> 1.36E-8

Directive conformityMachinery Directive 2006/42/EC

EN ISO 13849-1:2008; EN 61496-1:2013

EMC Directive 2004/108/EC

EN 61000-6-3:2007+A1:2010; EN 61000-6-4:2007+A1:2011

Conformity with standardsFunctional safety IEC 61508:2010 part 1-4Standards IEC 61496-2:2013


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Conformity with Standards and Directives

9.2 Profile length and weight

CE conformity CEUL approval cULus Listed

UL File NumberE215245

CCC approval Products with a maximum operating voltage of 36 V are not subject to approval and are therefore not assigned a CCC mark.

TÜV approval TÜV

Protection field height [mm] Overall length of the transmitter / receiver unit [mm]

Weight of transmitter / receiver unit [g]

100 219 140200 319 200300 419 250400 519 310500 619 370600 719 430700 819 480800 919 540900 1019 6001000 1119 6501100 1219 7101200 1319 7601300 1425 8201400 1525 8801500 1625 9401600 1725 9901700 1825 10501800 1925 11001900 2025 11602000 2125 12102100 2225 12702200 2325 13202300 2425 13802400 2525 1440

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9.3 Dimensional drawingSafety light curtain SLCS14-...

Figure 9.1 Dimensions of the Safety Light Curtain SLCS14

Safety light curtain SLCS30, SLCS60, SLCS90(protection field height up to 1200 mm)

Figure 9.2 Dimensions of the Safety Light Curtains SLCS30, SLCS60 or SLCS90 with height of the protected area up 1200 mm

Safety light curtain SLCS30, SLCS60, SLCS90(protection field height up to 1200 mm)

Figure 9.3 Dimensions of the Safety Light Curtains SLCS30, SLCS60 or SLCS90 with height of the protected area greater than 1200 mm

Line markings on the transmitter strip and receiver strip indicate the limits of the protection field. For protection field heights up to 1200 mm on the SLCS30, SLCS60 and SLCS90, the profile end represents one of the two markings.

Height of the protected area

Housing length

20

29.4 111.57.5

10

Housing lengthHeight of the protected area

Height of the protected area ≤ 1200 mm

29.4

20

119.5

10

Housing length

Height of the protected area > 1200 mm

Height of the protected area29.4

20

5.5 119.5

10


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9.4 Designation CodeSafety light curtains from the SLCS series are designated by a code according to the following format:S L C S XX - YYYY - Z - AAAAXX indicates the obstacle size, YYYY the protection field height, Z the device type, i.e. transmitter (t) or receiver (R), and AAAA the design specification applicable in individual cases.

Designation Code

Obstacle size Protection field height

Device type Design specification

XX [mm] YYYY [mm] Z AAAA14 100, 200, 300, …

1200T, R No specification

30 100, 200, 300, … 2400

T, R No specification

60 300, 600, 900, … 2400


90 300, 600, 900, … 2400


Obstacle size [mm]

Protection field height [mm] Complete Transmitter(-T) Receiver(-R)

14 100 SLCS14-100 SLCS14-100-T SLCS14-100-R200 SLCS14-200 SLCS14-200-T SLCS14-200-R

300 SLCS14-300 SLCS14-300-T SLCS14-300-R

400 SLCS14-400 SLCS14-400-T SLCS14-400-R

500 SLCS14-500 SLCS14-500-T SLCS14-500-R

600 SLCS14-600 SLCS14-600-T SLCS14-600-R

700 SLCS14-700 SLCS14-700-T SLCS14-700-R

800 SLCS14-800 SLCS14-800-T SLCS14-800-R

900 SLCS14-900 SLCS14-900-T SLCS14-900-R

1000 SLCS14-1000 SLCS14-1000-T SLCS14-1000-R

1100 SLCS14-1100 SLCS14-1100-T SLCS14-1100-R

1200 SLCS14-1200 SLCS14-1200-T SLCS14-1200-R

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EN 30 100 SLCS30-100 SLCS30-100-T SLCS30-100-R200 SLCS30-200 SLCS30-200-T SLCS30-200-R300 SLCS30-300 SLCS30-300-T SLCS30-300-R400 SLCS30-400 SLCS30-400-T SLCS30-400-R500 SLCS30-500 SLCS30-500-T SLCS30-500-R600 SLCS30-600 SLCS30-600-T SLCS30-600-R700 SLCS30-700 SLCS30-700-T SLCS30-700-R800 SLCS30-800 SLCS30-800-T SLCS30-800-R900 SLCS30-900 SLCS30-900-T SLCS30-900-R1000 SLCS30-1000 SLCS30-1000-T SLCS30-1000-R1100 SLCS30-1100 SLCS30-1100-T SLCS30-1100-R1200 SLCS30-1200 SLCS30-1200-T SLCS30-1200-R1300 SLCS30-1300 SLCS30-1300-T SLCS30-1300-R1400 SLCS30-1400 SLCS30-1400-T SLCS30-1400-R1500 SLCS30-1500 SLCS30-1500-T SLCS30-1500-R1600 SLCS30-1600 SLCS30-1600-T SLCS30-1600-R1700 SLCS30-1700 SLCS30-1700-T SLCS30-1700-R1800 SLCS30-1800 SLCS30-1800-T SLCS30-1800-R1900 SLCS30-1900 SLCS30-1900-T SLCS30-1900-R2000 SLCS30-2000 SLCS30-2000-T SLCS30-2000-R2100 SLCS30-2100 SLCS30-2100-T SLCS30-2100-R2200 SLCS30-2200 SLCS30-2200-T SLCS30-2200-R2300 SLCS30-2300 SLCS30-2300-T SLCS30-2300-R2400 SLCS30-2400 SLCS30-2400-T SLCS30-2400-R

60 300 SLCS60-300 SLCS60-300-T SLCS60-300-R600 SLCS60-600 SLCS60-600-T SLCS60-600-R900 SLCS60-900 SLCS60-900-T SLCS60-900-R1200 SLCS60-1200 SLCS60-1200-T SLCS60-1200-R1500 SLCS60-1500 SLCS60-1500-T SLCS60-1500-R1800 SLCS60-1800 SLCS60-1800-T SLCS60-1800-R2100 SLCS60-2100 SLCS60-2100-T SLCS60-2100-R2400 SLCS60-2400 SLCS60-2400-T SLCS60-2400-R

Obstacle size [mm]



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9.5 Response timesThe safety light curtain response time is shown on the type label on the device.

90 300 SLCS90-300 SLCS90-300-T SLCS90-300-R600 SLCS90-600 SLCS90-600-T SLCS90-600-R900 SLCS90-900 SLCS90-900-T SLCS90-900-R1200 SLCS90-1200 SLCS90-1200-T SLCS90-1200-R1500 SLCS90-1500 SLCS90-1500-T SLCS90-1500-R1800 SLCS90-1800 SLCS90-1800-T SLCS90-1800-R2100 SLCS90-2100 SLCS90-2100-T SLCS90-2100-R2400 SLCS90-2400 SLCS90-2400-T SLCS90-2400-R

Obstacle size [mm]


Protective field height [mm]

Response time [ms]

SLCS14-... SLCS30-... SLCS60-... SLCS90-...100 11 8 - -200 15 10 - -300 19 11 9 8400 23 12 - -500 26 14 - -600 30 15 11 10700 34 16 - -800 38 17 - -900 42 19 13 111000 46 20 - -1100 50 21 - -1200 54 23 15 121300 - 24 - -1400 - 25 - -1500 - 26 17 141600 - 28 - -1700 - 29 - -1800 - 30 19 151900 - 32 - -2000 - 33 - -2100 - 34 21 16

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The switch-on time after beam interruption without a restart function is between 80 ms and 200 ms. The time depends on the number of protective beams.

9.6 Periodic ChecksThe test intervals and scope of the periodic checks are determined according to requirements.Daily Check1. Make sure the protection field is clear.2. Activate the startup enable.3. Interrupt the protection field inside the protection field range using the test

rod. A test rod with a suitable obstacle size must be used.4. Check the entire protection field at several points parallel to the transmitter or

receiver, in particular in front of the transmitter and receiver and in the center between the transmitter and receiver, to find any detection gaps caused by reflective surfaces.

The OSSD outputs switch off.5. Slowly move the test rod through the protection field and watch the displays

on the receiver while doing so. If the startup/restart interlock is activated, the yellow ready to start

indicator must not light up. If the startup/restart interlock is deactivated, the green status indicator of the OSSD display must not come on.

2200 - 35 - -2300 - 37 - -2400 - 38 23 17

Protective field height [mm]

Response time [ms]

SLCS14-... SLCS30-... SLCS60-... SLCS90-...

Note!After the protection field area has been cleared, the outputs must switch back to the ON state if the start/restart interlock is deactivated.

Note!The OSSD outputs must switch on again after the protection field is cleared and the start/restart interlock is activated.

Note!The safety light curtain must be included in any general checks on machine safety functions. This includes checking for proper alignment and installation. In addition, check that the required response times are maintained (see chapter 9.5).


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9.7 Application ChecklistA list of important points should help you avoid errors when planning, setting up, and using the safety device. This application checklist is not complete and must be modified to suit each specific application.

Before installation■ Have all the applicable standards and regulations been observed?■ Does the technical data of the SLCS meet the requirements of the

application? This especially applies to detection capability, the protection field height, and the operating voltage.

■ Is the overvoltage category required by EN50178 or EN60947-1 met at the connections?

■ Is the electrical equipment, wiring and overcurrent protection in accordance with IEC 60204-1: 2009?

■ Is there enough space for fitting and dismounting components?■ Are the distances between the protection field and the hazardous area as

well as the reflective surfaces maintained as required?■ Is the SLCS used indoors?

After installation■ Is the startup enable input connected when the startup/restart interlock is

activated?■ Is the ready to start signal lamp connected?■ Is the test input connected?■ Is the red/green indicator for signaling the status of the OSSD outputs in a

visible location?■ Are all components correctly connected?■ Has the SLCS been positioned so that the protection field cannot be

bypassed and people cannot enter the hazardous area undetected?■ Is the SLCS aligned?■ Have the necessary safety distances been maintained?

Commissioning■ Has the detection capability of the SLCS been tested over the entire

protection field height using the test rod? This test should take place at multiple locations and at least once in front of the transmitter and receiver as well as at the central point between the transmitter and receiver.

■ Do the OSSD switch outputs trigger the requisite stop?■ Has the response time of the overall safety device been checked?

Note!Observing Applicable Standards and LawsThe relevant laws and standards that apply to the use of opto-electronic safety devices must be followed. There are differences depending on the area of use.

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Periodic check■ Have the requisite tests and test intervals been determined?■ Is the detection capability of the SLCS tested regularly over the entire

protection field height using the test rod?■ Are the response times checked at regular intervals?■ Is all machine safety equipment inspected at the required intervals?■ Are all checks documented?

9.8 AccessoriesThe following products are available as accessories:Compatible Accessories for Safety Light Curtains

No. Designation Illustration Description1 OMH-SLCT-01 Mounting aid

2 OMH-SLCT-02 Mounting aid





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9.8.1 Mounting Aid OMH-SLCT-01Model number: OMH-SLCT-01The transmitters/receivers can be secured using mounting aids that grip the dovetail guide. Dovetail guides are located on three sides of the profile. When mounting and aligning the unit, avoid subjecting the profile to mechanical tension.A minimum of two mounting aids must be used to secure the transmitter and receiver unit. If vibrations or shocks are expected, we recommend attaching mounting aids at intervals of 500 mm.

Figure 9.4 Dimensional drawing of the mounting aid OMH-SLCT-01

6 AA SLCT-01 Profile alignment tool

7 TR 14/30/50/60 Test rod

No. Designation Illustration Description

Note!Available Mounting BracketsThe mounting brackets allow mounting of light curtains and accessories. A complete mounting bracket is required to mount an transmitter and a receiver. The mounting brackets are also suitable for use as a corner profile if two independently acting light curtains are to be installed. Suitable mounting brackets can be found on the Pepperl+Fuchs website by searching for SLCT-M*.

ø 4.

428 40

28

ø 4.

48.

3

42.8

M3

4.514

4.2

17.1

37

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Figure 9.5 Opening and closing of the mounting aid OMH-SLCT-01

Figure 9.6 Example of mounting a mounting aid OMH-SLCT-01 to a mounting column

Drücken = SchließenPush = closePresser = fermerApretar = cerrar

Drücken = ÖffnenPush = openPresser = ouvrirApretar = abrir


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9.8.2 Mounting Aid OMH-SLCT-02Model number: OMH-SLCT-02The OMH-SLCT-02 mounting aid is used as a fixed bearing and secures the position of the light curtain in the event of thermal expansion, vibration, or shock.

Figure 9.7 Dimensional drawing and assembly of the mounting aid OMH-SLCT-02

9.8.3 Mounting Aids OMH-SLCT-03 and OMH-SLCT-04Model number (fixed bearing): OMH-SLCT-03Model number (moveable bearing): OMH-SLCT-04The longer mounting aid OMH-SLCT-03 has a higher clamping force than the shorter mounting aid OMH-SLCT-04 and is therefore the preferred option for assuming the function of the fixed bearing. A minimum of one fixed bearing and one moveable bearing is required to mount the device. If more than two mounting aids are required for reasons of stability, the use of further moveable bearings is recommended. If vibrations or shocks are expected, we recommend attaching mounting aids at intervals of 500 mm.The mounting aid OMH-SLCT-03 can also be used to connect two light grids. If the mounting aid is to be used for this application, the metal bracket should be removed.

ø 4.3

8.3

16

ø 4.

361

.128

OMH-SLCT-02

OMH-SLCT-01

OMH-SLCT-02

OMH-SLCT-01

37

42.8

17.1

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Figure 9.8 Mounting aid OMH-SLCT-03 (fixed bearing)

Figure 9.9 Mounting aid OMH-SLCT-04 (loose bearing)

Figure 9.10 Example of mounting a mounting aid OMH-SLCT-03 or OMH-SLCT-04 to a mounting column

56.1

22.3

27.6

9.8 24

66

80

5.4

28

56.1

22.3

27.6

9.8

5.4

28

24


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9.8.4 Mounting aid OMH-SLCT-05Order code: OMH-SLCT-05The Mounting aid OMH-SLCT-05 is a robust, swivel bracket with very large adjustment range. The integrated dovetail clamp allows mounting of profiles of the SLCS and SLCT series without additional accessories.Features

■ large swivel range of -7° .. +110°■ very robust■ easily accessible screws■ Integrated dovetail for mounting SLCS and SLCT series

Figure 9.11 Mounting aid OMH-SLCT-05

72.5

+ 0

.3

50 ±

0.3

68 +

0.3

15.2

25.1

36

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9.8.5 Alignment aidOrder code: AA-SLCT-01The transmitter and receiver should always be aligned at the same height in parallel to one another. The AA-SLCT-01 alignment aid with bubble level assists the perpendicular alignment of the profile. The AA-SLCT-01 alignment aid is simply clipped into the groove on the side of the profile.

Figure 9.12 Dimensional drawing and assembly of the alignment AA-SLCT-01

9.8.6 Test rodOrder code: TR 14/30/50/60The detection capability of a safety light curtain should be checked regularly using a test rod. The test rod must be kept next to the safety light curtain. At regular prescribed intervals, the protection field must be tested at different points over its entire height (in front of the transmitter and receivers and in the center between the transmitter and receiver) and the results must be documented.The receiver of every safety light curtain comes with a test rod 230 mm in length. The rod is suitable for checking the detection capability of light curtains with different resolutions.

ø 21 24.5

11.1 ø 5.5

20

139

14

23.421.5

PU

SH

PUSH

PUSH


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Figure 9.13 TR 14/30/50/60 test rod

9.8.7 Connection CablesVarious 4-pin and 8-pin connection cables are available in a range of lengths.Connection cables are not included in the scope of delivery of a safety light curtain.Connection Cable for Safety Light Curtains

The specified cables are UL-certified and marked accordingly.

Use Model numberLength 2 m Length 5 m Length 10 m

4-pin cable (transmitter)

V1-G-BK2M-PUR-UL

V1-G-BK5M-PUR-UL

V1-G-BK10M-PUR-UL

8-pin cable (receiver)

V19-G-BK2M-PUR V19-G-BK5M-PUR V19-G-BK10M-PUR

Subject to modificationsCopyright PEPPERL+FUCHS • Printed in Germany

www.pepperl-fuchs.com

FACTORY AUTOMATION – SENSING YOUR NEEDS

Worldwide HeadquartersPepperl+Fuchs GmbH68307 Mannheim · GermanyTel. +49 621 776-0E-mail: [email protected]

USA HeadquartersPepperl+Fuchs Inc.Twinsburg, Ohio 44087 · USATel. +1 330 4253555E-mail: [email protected]

Asia Pacific HeadquartersPepperl+Fuchs Pte Ltd.Company Registration No. 199003130ESingapore 139942Tel. +65 67799091E-mail: [email protected]

207484 DOCT-1495E07/2015

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