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12

Operating instructions

Safety light curtain / safety light grid

SLC440 Series

SLG440 Series

EN

Example

Response time of the safety light curtain = 10 ms

Resolution of the safety light curtain = 14 mm

Stopping time of the machine = 330 ms

S = 2000 mm/s * (330 ms + 10 ms) + 8(14 mm - 14 mm)

S = 680 mm

S ≥ 500 mm, therefore new calculation with K = 1600 mm/s

S = 544 mm

Limit of the hazardous 

point

Safety distance (S)

Protection field 

marking

Tool - upper part

Signal to stop the  

hazardous movement
Standstill of the hazardous 

movement

t

n

 = t

B

 - t

A

Tool - lower part

t

A

S

t

B

≤ 75 mm = max. distance for protection against stepping over

To prevent persons from stepping over the protection field this dimension must be imperatively 

respected and observed

Calculation of the safety distance for the multi-beam light grid 

SLG440

S = (1600 mm/s * T) + 850mm

S = Safety distance [mm]

T =  Total reaction time (machine run-on time, reaction time of the safety 

guard, relays, etc)

K = Approach speed 1600 mm/s

C = Safety supplement 850 mm

Example

Reaction time of the SLG440 = 10 ms

Stopping time of the machine T = 170 ms

S = 1600 mm/s * (170 ms + 10 ms) + 850 mm

S = 1138 mm

The following mounting heights must be observed:

Number of 

beams

Mounting height above reference floor in mm

2

400, 900

3

300, 700, 1100

4

300, 600, 900, 1200

Safety distance to the hazardous area

S

Hazardous 

point

Emitter

Receiver

Command 

device

Reset

Mechanical protection

Direction from which 

the hazardous area is 

accessed

The formulas and calculation examples are related to the vertical set-up 

(refer to drawing) of the safety light grid with regard to the hazardous 

point Please observe the applicable harmonised EN standards and 

possible applicable national regulations

4.5   Increasing the safety distance in the event of risk of a 

protection field overlap

If an overlap of the protection field is possible, take care with 

the calculation of the safety distance referring to additional 

C

RO

 according to the table A1 as per norm ISO 13855

The norm ISO 13855 defines two types of safety distances,

-   Access 

through

 the protection area with an additional distance C, 

according to the resolution of the AOPD

-   Access 

over

 the protection area with an additional distance C

RO

 

according to table 1

If it is possible to reach through the hazardous area (vertical alignment) 

then both values C and C

RO 

have to be determined The higher value 

of both is to be used for calculating the safety distance Calculating the 

safety distance with C

RO

:

S

C

RO

 = K x T + C

RO

= Approach speed 

=  Total response time (machine run-on time, response time of the 

safety guard, relays, etc)

C

RO

  =  Additional distance due to protection field overlap to the 

hazardous area with part(s) of body

1

2

3

KxT

S

RO

C

RO

a

b

1  Safety sensor

2  Hazardous point

3 Floor

a  Height of the hazardous point

b  Height of the upper edge of the protection area of the AOPD

Summary of Contents for SLC440

Page 1: ...propriate use 2 1 5 General safety instructions 2 1 6 Warning about misuse 2 1 7 Exclusion of liability 2 2 Product description 2 1 Purpose 2 2 2 Bluetooth interface 2 2 3 Ordering code 2 2 4 Special versions 2 2 5 Scope of delivery and accessories 2 2 6 Technical data 3 2 7 Response time reaction time 4 2 8 Safety classification 4 2 9 Functions 4 2 9 1 Protective mode Automatic 5 2 9 2 Restart In...

Page 2: ...esulting from defective mounting or failure to comply with this operating instructions manual The manufacturer shall accept no liability for damages resulting from the use of unauthorised spare parts or accessories For safety reasons invasive work on the device as well as arbitrary repairs conversions and modifications to the device are strictly forbidden the manufacturer shall accept no liability...

Page 3: ...tage LOW inactive 0 2 0 V Input current HIGH 3 10 mA Input current LOW 0 3 mA Functions automatic mode restart interlock double reset contactor control beam blanking fixed and floating beam coding A Signal times Contactor control max 500 ms Restart interlock manual reset 50 ms 1 5 s signal transmission in case of falling edge LED indications emitter emitting status LED indications receiver OSSD ON...

Page 4: ...500 10 15 0 9 3 400 10 15 1 35 4 300 10 15 1 5 2 8 Safety classification Standards ISO 13849 1 EN 62061 PL up to e Control category up to 4 PFH value 5 14 x 10 9 h SIL up to 3 Mission time 20 years 2 9 Functions The system consists of a receiver and an emitter For the described functions no further switching elements are required The diagnostic and function selection takes place with a command dev...

Page 5: ...installed outside of the hazardous area The operator must have a clear view to the hazardous area when actuating the enabling button 2 9 3 Restart interlock with double acknowledgement reset In applications with access monitoring a complete overview of the hazardous areas is often not possible despite that a reset of the command device for the restart interlock outside of the hazardous area by thi...

Page 6: ... of 1 beam This position change corresponds to an amplitude of approx 10 mm resolution 14 mm and approx 20 mm resolution 30 mm upwards and downwards in the protection field Example of beam blanking object in protection field Beam number 3 4 5 6 7 Status OSSDs Fixed blanking beam 4 5 and 6 Teach In Shift 1 beam down ok Shift 1 beam up ok Object only covers 2 beams ok Object only covers 2 beams ok O...

Page 7: ...ve function into account The function enables an arbitrary floating blanking of partial areas in the protection field The first beam which is located immediately behind the diagnostic window cannot be blanked This function allows for an interruption of maximum 1 light beam without the outputs being disabled in case of material movement in the protection field e g ejection of material or process co...

Page 8: ...f flashing LED s refer to LED status information The beam coding A must be set for each sensor receiver and emitter individually The function at the receiver is activated in parameter setting mode P 6 Emitter parameter setting Wiring of the emitter Jumper connection pin 1 with pin 2 Jumper connection pin 3 with pin 4 Pin1 Pin2 24V DC Pin3 Pin4 0V DC The response time of the system is increased whe...

Page 9: ...r connections 4 Switch operating voltage on Adapter cable for parameter setting If the wiring for the parameter setting of the receiver is not accessible the KA 0974 adapter cable can be used as an alternative The adapter cable is connected between the connecting cable and the cable connector of the receiver The parameters are set by means of the command device pushbutton as described in the param...

Page 10: ...h other and at the same height 2 Choose the operating mode Automatic see chapter Protective mode automatic and switch the operating voltage on 3 The 7 segment display in the receiver shows the current signal quality fine setting signalling see chapter set up mode for 5 minutes At first rotate the emitter and then the receiver towards each other until you have the best possible signal strength of 3...

Page 11: ...he safety light curtain and the hazardous area The safety distance must be observed to ensure that the hazardous area cannot be reached before the hazardous movement has come to standstill The safety distance between the safety light curtain light grid and the hazardous point must always be respected and observed If a person reaches the hazardous point before the hazardous movement has come to a s...

Page 12: ...point Emitter Receiver Command device Reset Mechanical protection Direction from which the hazardous area is accessed The formulas and calculation examples are related to the vertical set up refer to drawing of the safety light grid with regard to the hazardous point Please observe the applicable harmonised EN standards and possible applicable national regulations 4 5 Increasing the safety distanc...

Page 13: ...1 Locate the height of the upper edge of the hazardous area a left table column 2 Locate the height of the protection area b upper table row 3 CRO is to be taken from the crossing point of both axes If the known value for a and b is between the table values the next higher value is to be used 4 5 1 Minimum distance to reflecting surfaces During the installation the effects of reflecting surfaces m...

Page 14: ...C440 ER 1530 XX 1530 1624 1643 SLC440 ER 1610 XX 1610 1704 1723 SLC440 ER 1690 XX 1690 1784 1803 SLC440 ER 1770 XX 1770 1864 1883 SLC440 ER 1850 XX 1850 1944 1963 SLC440 ER 1930 XX 1930 2024 2043 4 6 2 Dimensions emitter and receiver SLG440 75 70 8 A B C 22 2 24 7 7 33 27 8 L2 L1 41 5 82 5 Type A Beam distance B Mounting dimension C Total length L1 L2 SLG440 ER 0500 02 500 624 643 358 5 357 5 SLG4...

Page 15: ...nation description Length 101207728 KA 0904 female connector M12 8 pole 5 m 101207729 KA 0905 female connector M12 8 pole 10 m 101207730 KA 0908 female connector M12 8 pole 20 m Adapter cable for parameter setting Article No Designation description Length 101217615 KA 0974 Y distributor with command device 1 m Status indicator The status indication at the receiver indicates the switching condition...

Page 16: ...YE OSSD 1 GN 0 VDC BU Earth connection Restart interlock manual reset bridge 1 By bridging restart 2 pin 5 and DOUT pin 6 the restart interlock manual reset is activated Connect S1 to Pin1 Protective mode Automatic active bridge 2 By bridging DOUT Pin 6 and enable restart Pin1 the protective mode is activated Don t connect S1 K1 K2 Relay for processing the switching outputs OSSD 1 OSSD 2 Kn1 Kn2 A...

Page 17: ...nts load are not connected to 24 VDC 7 If two or more AOPDs are used within close range compared to each other an alternating arrangement must be observed Any mutual interference of the systems must be prevented Switch on the AOPD and check the operation in the following way The AOPD performs a system test for approx 2 seconds after the operating voltage has been switched on indication through 7 s...

Page 18: ...on LED colour Description Information Emitting Protection field Information green Function display Beam coding A Emitting orange Emitter active Receiver LED Status LED Description OSSD ON ON Protection field clear OSSD OFF ON Protection field interrupted system or configuration error ON Error output refer to Fault diagnostic table Restart ON Restart interlock manual reset active signal expected at...

Page 19: ... blanking Check the blanking area s of fixed or floating objects with the selected parameter setting fault elimination repeat configuration in the parame ter setting possibly adjust P 1 P 2 P 3 Configuration error in parameter setting Check parameter setting and save accept with S or delete clear with C delete clear System error Restart the system if E 7 display persists exchange components The er...

Page 20: ...thorised for the compilation of the technical documentation Oliver Wacker Möddinghofe 30 42279 Wuppertal Place and date of issue Mühldorf March 9 2020 Authorised signature Klaus Schuster Managing Director Authorised signature Christian Spranger Managing Director EU Declaration of conformity Original Safety Control GmbH Am Industriepark 2a 84453 Mühldorf Inn Germany We hereby certify that the herea...

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