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5

Design and function

ULCT/BLCT safety light curtains each comprise two
components: Light transmitter and light receiver.
The clearance between these two components and the
installation height determine the width and height of the
protective field
(Figure 5/1).

Modular design permits realization of protective field
heights ranging from 100 mm to 1500 mm in 100-mm
steps.

The transmitter generates infrared light beams in rapid
pulses. These parallel light beams are analyzed by two
single-chip controllers in the transmitter. The beam
spacing determines the resolution (refer to Table 5/2).

If an object enters the protective field, i.e. if at least one
light beam is interrupted, the receiver's two outputs stop
the machine or prevent it from starting, thus avoiding
hazards.

In the restart with interlock operating mode, the machine
can only be restarted by means of the start button once
the protective field has been cleared again.

Protective field heights, lengths, ranges, resolutions and beam count

1

  System description 

1.2

 Design and function /  

1.3

 Overview table

Test bar diameter = Size of obstruction

Protective

field height

(mm)

Length

L (mm)

Beam count

Beam count

100
200

161
261

12
24

4
8

300
400
500

500

361
461

36
48

561

60

12
16
20

600
700
800
900

661
761

72
84

861
961

96

108

1000
1100
1200
1300

1061
1161

120
132

1261
1361

144
156

24
28
32
36
40
44
48
52

1400
1500
1600

1461
1561

168
180

1696

208

56
60

112

Table 5/2: Overview of standard light grids

Finger protection

Resolution:

14 mm

Hand protection

 

Resolution: 30 mm

Range: 5 m

Range

5 m

Overview

table

Le

ngth 

 L

Fig. 5/1:

The transmitter and receiver together generate a protective field.

Pro

te

ct

ive

 fi

el

d 

he

ig

ht

Protective field width

Table of Contents

FIESSLER

 

E L E K T R O N I K

ULCT / BLCT

ULCT

Fiessler Elektronik GmbH & Co. KG

Telefon: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Telefax: +49 (0) 711 / 91 96 97-50   eMail: [email protected]

Doku Nr. 1121 Stand 08.01. 2018 RK/Aui

Содержание BLCT

Страница 1: ... n g m a n u a l t r a n s l a t i o n Safety category 4 EN 954 1 and IEC 61496 Part1 Part2 or EN 61496 Deployable to SIL 3 EN 61508 Performance Level PL e ISO 13849 1 BA ULCT_BLCT_GB Dok 1121 Stand 17 9 2019 RK Aui ULCT BLCT with blanking Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 50 eMail info fiessler de Fiessler Elektronik GmbH Co KG Doku Nr 1121 Stand ...

Страница 2: ...er de Internet www fiessler de Represented in all major countries Roboter MUTINGLAMPE Palette Three or more beam light grids with a range of up to 60 m Two beam light grids with transmitter receiver units and a deflecting mirror with a range of up to 10 m Output muting Differentiation between humans and material Two beam light grids with a range of up to 60 m Cross muting Differentiation between h...

Страница 3: ...ection 21 3 1 Receiver s connecting plug 21 3 2 Connection with restart interlock with contactor control 21 3 3 Connection without restart interlock without contactor control 22 3 4 Connection with restart interlock without contactor control 22 3 5 Connection without restart interlock with contactor control 22 3 6 Transmitter s connecting plug 22 4 Safety notes 23 5 Auxiliary functions with safety...

Страница 4: ...l safety switchgears permit muting and clocked operation refer to Chapter 5 Features Safety category 4 EN 954 1 and IEC 61496 Part1 Part2 or EN 61496 deployable to SIL 3 EN 61508 Performance Level PL e ISO 13849 1 Contactor control and restart interlock Integrated functions can be programmed without a PC Directly controllable contactors valves Switching capacity 0 5 A 24 V Beam spacing 8 33 mm 25 ...

Страница 5: ...e start button once the protective field has been cleared again Protective field heights lengths ranges resolutions and beam count 1 System description 1 2 Design and function 1 3 Overview table Test bar diameter Size of obstruction Protective field height mm Length L mm Beam count Beam count 100 200 161 261 12 24 4 8 300 400 500 500 361 461 36 48 561 60 12 16 20 600 700 800 900 661 761 72 84 861 ...

Страница 6: ...eiver indicate the current operating status Display on interruption of a light beam If one or more light beams are interrupted the number of the uppermost interrupted beam as seen from the connecting plug is displayed On light grids comprising more than 99 light beams the right hand decimal point also shines if the 122nd beam is interrupted for instance If a light beam numbered higher than 200 is ...

Страница 7: ...de is called up If you hold down the button for 2 seconds or longer the currently displayed operating mode is saved and remains solidly lit on the display This procedure brief actuation of the button can be repeated as often as necessary After you have removed the bridge between OSSD2 and UB and reset the voltage the saved operating mode becomes effective Indication of operating mode The stored op...

Страница 8: ... F4 Error during change of operating mode The start button was held down too briefly for changing the operating mode during power on Or the bridge from OSSD2 to 24 VDC was detached during a change of operating mode refer to the section on changing operating modes on Page 7 F5 Internal error Power on the device once again If F5 is still displayed an internal error has occurred In this case the devi...

Страница 9: ...de reinforced with glass beads Plexiglass for light entry and exit Operating data Protection type Protection class IP 65 III Ambient operating temperature Storage temperature 10 to 50 C 25 to 70 C Electrical data Transmitter ULCT S Receiver ULCT E BLCT E Supply voltage2 Current consumption 24 V DC 20 15 SELF PELF Max 250 mA 24 V DC 20 SELF PELF Max 250 mA without load Outputs Inputs Electrical con...

Страница 10: ... of the housing 25 5 mm 0 5 34 5 mm 0 3 Length Protective field height mm Length mm Mounting distance BFA mm 100 200 162 262 200 300 300 400 500 600 362 462 400 500 562 662 600 700 700 800 900 1000 762 862 800 900 962 1062 1000 1100 1100 1200 1300 1400 1162 1262 1200 1300 1362 1462 1400 1500 1500 1562 1600 16 5 mm FIESSLER E L E K T R O N I K Mounting distance BFA Fiessler Elektronik GmbH Co KG Te...

Страница 11: ...00 108 120 ULCT 1100 132 ULCT 1200 144 ULCT 1300 156 ULCT 1400 168 1100 1200 132 144 1300 1400 156 168 11 12 13 14 15 17 18 19 ULCT 1500 180 1500 180 20 System Protective field height mm Beam count Reaction time ms BLCT 100 12 BLCT 200 24 100 200 12 24 7 9 BLCT 300 36 BLCT 400 48 BLCT 500 60 BLCT 600 72 300 400 36 48 500 600 60 72 10 12 14 15 BLCT 700 84 BLCT 800 96 BLCT 900 108 BLCT 1000 120 700 ...

Страница 12: ...safety clearance Valid to a resolution of 40 mm Example 1 Safety light curtain ULCT100 12 Reaction time 5 ms Resolution d 14 mm Machine run on time t2 75 ms Example 2 Safety light curtain ULCT500 20 Reaction time 6 ms Resolution d 30 mm ULSG reaction time 6 ms Machine run on time t2 75 ms 12 2 Assembly 2 2 Safety clearance S K x T C At S 100 mm to 500 mm At S 500 mm S 2000 mm s T C S 1600 mm s T C...

Страница 13: ...refer to Page 12 t1 Protective mechanism s reaction time t2 Machine s run on time If the protective field is at a height of 300 mm above the floor there is a danger of slipping beneath it This must be considered when assessing risks Accordingly at H 300 mm 1200 0 4 x H 850 mm The clearance a to the end of the protective field between the last beam and the hazard zone s front edge must not exceed E...

Страница 14: ...ect e g container ULCT receiver ULCT transmitter Direction of approach Interrupted beam Central beam Container To prevent reflective objects from hindering a clear view and detection of obstruc tions ULCT BLCT safety light curtains must be mounted at a minimum clearance a Figure 14 1 from such reflective objects Table 14 2 Installation range clearance Fiessler Elektronik GmbH Co KG Telefon 49 0 71...

Страница 15: ...hine must be 75 mm In the normal operating procedure Figure 15 2a the operator places workpieces in the seated position To allow for the machine s run on time the ULCT BLCT safety light curtain a is mounted at a distance before the hazard zone refer to Chapter 2 2 At the protection height selected here an exposed gap results above the light curtain Figure 15 2b shows how reaching over the light cu...

Страница 16: ...curtains Table of Contents Empfänger Sender Empfänger Sender Empfänger Sender Empfänger Sender Empfänger Sender Empfänger Sender FIESSLER E L E K T R O N I K Receiver Transmitter Receiver Transmitter Receiver Transmitter Receiver Transmitter Receiver Transmitter Receiver Transmitter Fiessler Elektronik GmbH Co KG Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 5...

Страница 17: ...wivel fixture is to be attached by means of the accompanying plastic bolt The long swivel fixture is to be attached using the lock nuts of the ULCT BLCT light curtain s M12 connector Depending on the required type of mounting lateral or rear the fixture must be installed as explained further below Rear mounting Short swivel fixture with fixing screw attached via a plastic bolt Long swivel fixture ...

Страница 18: ... After adjustment the fixing screw must be tightened to prevent accidental move Subsequently the fastening screws must be tightened Step 1 Step 2 Step 7 Supplied parts The crossed out parts are needed only if the swivel range proves insufficient 8 nuts M3 8 adjustment screws M3 x 8 Insert 2 each of the accom panying adjustment screws via the through bores into the M3 nuts pressed in at the rear Th...

Страница 19: ...ope of delivery Refer to Page 10 of Chapter 1 8 dimensions for mounting clearances Step 8 Step 5 Fasten the long swivel fixture via the connector s M12 nuts The widening element can be fitted to permit swivelling of the TLCT in all directions beyond the edges 1st light beam is interrupted Also refer to Page 6 The long swivel fixture is meant for the side with the M12 connector The short swivel fix...

Страница 20: ...justment screws on one shackle before adjusting the other shackle FIESSLER E L E K T R O N I K Adjustment screws Another means of mounting is to position a block available from Fiessler Elektronik in the slot on the rear of the ULCT A threaded bolt is then screwed into the block via a through bore Ensure plane parallel mounting of the transmitter and receiver Since fine adjustment is not possible ...

Страница 21: ...r wall Barrier grille or wall Barrier grille or wall FIESSLER E L E K T R O N I K 3 Electrical connection 3 1 3 2 Connection of the transmitter and receiver Connector for the ULCTE BLCTE receiver Pin 1 white Start Enabling of start with restart interlock max 24V DC 20 Pin 2 brown UB 24V DC 20 SELV PELV Pin 3 green Pin 4 yellow EDM Contactor control max 24V DC 20 Pin 5 grey OSSD1 Safety output 1 ma...

Страница 22: ...EDM 1 white Start 2 brown UB 4 yellow EDM 5 grey OSSD1 6 pink OSSD2 7 blue UB 24V DC 20 0V K1 K2 k1 k2 X X X X X X X To interrupt hazardous movement If a hazardous movement enters the sphere of contactors K1 and K2 the normally open contacts of K1 and K2 must be connected in series Enabling of start Observe the safety notes on Page 23 Connection without restart interlock with contactor control EDM...

Страница 23: ...struction It must be possible for hazardous machine condition to be terminated by the sensor function Safe functionality of the entire system is ensured only under observance of this operating manual and relevant accident prevention regulations Forming part of the light curtain s scope of delivery this operating manual must be kept where the light curtain has been installed All instructions in thi...

Страница 24: ...ng types can be saved and invoked again via a selector switch optional 2KP optional 3KP Connections for 2 6 light curtains Emergency stop circuit monitor Protective doors emergency stop switches Two handed start Start enabling via a two handed switch 2 stage output deactivation Deactivation of control drives e g robots LCD display 2 x 8 characters Status and error messages Override After irregular...

Страница 25: ...he test rod through the protective field once directly before the transmitter once directly before the receiver and once halfway between the two see Figure 25 4 The green and yellow LEDs must remain off in this process This is done to detect any deflection by reflective components initialized inside the protective field g Indication of current resolution and protective field The current resolution...

Страница 26: ...ective field occasionally or regularly interrupting no more than 1 beam in the process 7 Floating blanking with 2 beam reduced resolution Fig 26 3 8 1 beam reduced resolution Fig 26 4 9 2 beam reduced resolution Fig 26 5 10 Ignore 1 beam just once Fig 26 6 Combination of 5th and 9th blanking modes for an object which moves inside the protective field and thin movable objects e g hoses and cables w...

Страница 27: ...EDs flash at about 1 Hz Green red LEDs flash at about 1 Hz 7 Floating blanking with 2 beam reduced resolution Fig 27 3 8 1 beam reduced resolution Fig 27 4 9 2 beam reduced resolution Fig 27 5 10 Ignore 1 beam just once Fig 27 6 Like item 5 but The blanked region must interrupt at least 4 neighbouring beams One or a maximum of two neighbouring beams at a time except for the synchronizing beam may ...

Страница 28: ...objects to be blanked must be located inside the protective field 3 Move the key switch to the programming setting Wait until the green LED on the switching device indicates readiness for programming 4 Remove the key switch The connected BLCT light curtain indicates the set blanking function learns it as well as the blanking position and then indicates a clear protective field BPSG Switching devic...

Страница 29: ...1 beam reduced resolution Fig 29 4 9 2 beam reduced resolution Fig 29 5 10 Ignore 1 beam just once Fig 29 6 11 Ignore 2 beams just once Fig 29 7 FIESSLER E L E K T R O N I K Selector switch operation Display Selector switch 1 Selector switch 2 Selector switch 3 Selector switch 4 Selector switch 5 Table of Contents Not flashing Blanking off Display during regular operation LEDs The red and yellow L...

Страница 30: ... them Refer to Chapter 2 3 on installation conditions on Page 16 Reaction times safety clearances The reaction time on interruption of a cascaded light grid increases by 3 ms per series connected light grid This must be taken into account when calculating safety clearances Protective fields must always be assembled using components belonging together e g main sensor as receiver and main sensor as ...

Страница 31: ...ety clearance Resolution see tables on Page 11 Light grid s intrinsic reaction time see tables on Page 11 Calculated reaction time Safety clearance e g S K xT C t2 75 ms Main sensor ULCTK 600 72 Downstream sensor 1 ULCTK 800 96 14 mm C 0 mm 14 mm C 0 mm 10 ms 12 ms 10 ms 12 ms 3 ms 15 ms S 170 mm S 180 mm Downstream sensor 2 ULCT 200 8 30 mm C 128 mm 5 ms 5 ms 6 ms 11 ms S 172 mm 128 mm S 300 mm T...

Страница 32: ...e first and second downstream sensors is identical to that between the main sensor and first downstream sensor But note that one receiver is always connected to one transmitter and vice versa Table of Contents Fiessler www ELEKTRONIK fiessler de Fiessler www ELEKTRONIK fiessler de built in cable gland with connected 4 pol cable 0 3 m Length optional 4 pol interconnecting cable 2 m Length Refer to ...

Страница 33: ...ng and optical alignment of cascaded light grids Machine control and voltage supply Transmitter Transmitter Receiver Receiver Transmitter Transmitter Yellow LED shines Yellow LED shines Yellow LED flashes about once a second Step 2 Align downstream sensor 2 Step 3 Align the main sensor last Green or yellow LED depending on the operating mode on the main sensor receiver shines when alignment is cor...

Страница 34: ...n cascaded light grids Receiver Receiver Receiver Receiver Receiver Transmitter Transmitter Transmitter Transmitter Transmitter Transmitter Receiver Machine control and voltage supply Machine control and voltage supply Transmitter Transmitter Transmitter Receiver Fiessler Elektronik GmbH Co KG Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 50 eMail info fiessle...

Страница 35: ...Brief and secure bypass of ULCT safety light curtains during material conveyance e g entry into and exit out of a production cell or high rack warehouse Reliable distinctions are made here between movements by humans and material Run on distance Fig 35 2 The distance covered by hazardous movement following deactivation e g travel of a ram or a point on a roller s surface Run on time The time taken...

Страница 36: ...hecks whether the connected switching elements relays contactors and valves are released Only then can the switching outputs be enabled again This prevents a failure of the switching elements relays contactors and valves used to control hazardous movement Restart interlock This function prevents automatic enabling of the switching outputs following interruption and subsequent clearing of the prote...

Страница 37: ...2 cable connection receiver 5 m Length Other lengths on request 4 pol M12 extension cable for cascaded light grids 2 m Length 8 pol M12 extension cable for cascaded light grids 2 m Length 4 pol M12 Round plug connector Screw terminals 227g 5 m Length 100g 2 m Length XC M12 8pol 5m XC M12 4pol 2m K 148g 2 m Length 28g XC M12 8pol 2m K 4 pol M12 Round plug connector Screw terminals 55g Spare parts S...

Страница 38: ...0 156 ULCT 1400 168 ULCT 1500 180 112 1300 1400 1361 1461 1500 1600 1561 1696 156 168 UC1300 156 UC1400 168 180 208 UC1500 180 17 USC1300 156 USC1400 168 UEC1300 156 UEC1400 168 USC1500 180 9 UEC1500 180 5 FIESSLER E L E K T R O N I K Type Order code Complete system BLCT 100 12 Protective field height mm 100 Length L mm 161 Beam count 12 Complete system BC100 12 Transmitter BSC100 12 Receiver BEC1...

Страница 39: ...o KG refuses to accept any warranty claims if the device has been opened or if it has been modified Returning a unit If a unit proves defective and needs to be returned the following details will greatly help us in repairing the fault quickly Exact fault description Has the machine with the light curtain exhibited other faults Have you noticed other failures malfunctions etc in the past etc In whi...

Страница 40: ...r normative documents EN 61496 1 IEC 61496 2 EN 61496 1 2 EN 62061 2005 EN ISO 13849 1 EN 954 following the provisions of Directive 2006 42 EG 2004 108 EG The protection goals of the Low Voltage Directive 2006 95 EC have been com plied with in accordance of Annex I No 1 5 1 of the Machinery Directive déclaration de conformité conforme appendice II 1 A 2006 42 EG Nous Fiessler Elektronik GmbH Co KG...

Страница 41: ...1 FIESSLER E L E K T R O N I K Fiessler Elektronik GmbH Co KG Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 50 eMail info fiessler de Doku Nr 1121 Stand 08 01 2018 RK Aui ...

Страница 42: ...f Contents FIESSLER E L E K T R O N I K Fiessler Elektronik GmbH Co KG Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 50 eMail info fiessler de Doku Nr 1121 Stand 08 01 2018 RK Aui ...

Страница 43: ...f Contents FIESSLER E L E K T R O N I K Fiessler Elektronik GmbH Co KG Telefon 49 0 711 91 96 97 0 Internet http www fiessler de Telefax 49 0 711 91 96 97 50 eMail info fiessler de Doku Nr 1121 Stand 08 01 2018 RK Aui ...

Страница 44: ...y equipment complies with national and European standards Development takes place in consultation with the relevant trade associations Certification is received followed rigorous tests by the Technical Inspection Board Fiessler Elektronik GmbH Co KG Buchenteich 14 D 73773 Aichwald Telefon 49 0 711 91 96 97 0 Fax 49 0 711 91 96 97 50 Email info fiessler de Internet www fiessler de Represented in al...

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