Fiessler ULVT User manual

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ISO 9001
DIN EN ISO 9001
ISO 9001: 2008
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Infrared accident prevention safety curtains ESPE Type 4
ULVT
BLVT
ULVTK
BLVTK
INHALT:
Safety instructions
Application notes
Installation
Electric Connection
Commissioning
Specifications Accessories
FIESSLER
E L E K T R O N I K
ULVT BLVT (with blanking features)
Muting, cycle operation .... with safety switching units as option
ULVTK / BLVTK (Cascading of Light Curtains)
Operating instructions
translation
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23
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Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]
Fiessler Elektronik GmbH & Co. KG Doku Nr. 958 Stand 22.01.2018 RK

For over 50 years,
we have proved to be specialists in the area of optoelectronics.
Our experience is your gain. Tell us your problems, and we will be
pleased to advise you.
Area laser Scanner Singel-Beam safety light bar-
rier with extended range (up
to 150 m)
Press Brake Protection Sy-
stem AKAS®
Safety switching mats Differentiation between man
and machine by the use of
the Muting function
3- and multi-beam light grid
range until 60 m
two-beam light grid with
transmitter/receiver unit and
mirror unit, range up to 10 m
Outgoing muting
Differentiation between man
and material
two-beam light grid
range until 60 m
Cross muting
Differentiation between man
and machine / material
Fiessler Elektronik GmbH & Co.KG
DE-73773 Aichwald
Phone: ++49(0)711-91 96 97-0
Fax: ++49(0)711-91 96 97-50
Email: [email protected]
Internet: www.fiessler.de
Representations in all major industrial nations.
FIESSLER
E L E K T R O N I K
Roboter
MUTINGLAMPE
Palette
Roboter
MUTINGLAMPE
Palette
We also invest in environmental protection
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Fiessler Elektronik GmbH & Co. KG Doku Nr. 958 Stand 22.01.2018 RK Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]

Sector Contents Page
1 Safety Instructions 5
1.1 Prerequisites for the utilisation of the safety light curtains 5
2Terminology 6
3 System Description and Technical Data 8
3.1 Features 8
3.2 Application Areas 8
3.3 Structure and Function 9
3.4 Tables: Protective fields,constructional lengths, ranges, resolutions, beam spacing, number of beams 9
3.5 LED-displays (in general) 10
3.6 Operating modes selector (with/without restart interlock, with/without contactor check, equivalent/antivalent outputs) 10
3.7 Technical data 11
3.8 Dimensions drawing (Light curtain and standard fastening brackets) 12
4 Installation 13
4.1 Response times ULVT, BLVT, cascaded systems and optional safety switching units 13
4.2 Safety distance from the hazardous areas 14
4.2.1 - vertical protection for hazardous areas (≤40 mm resolution) 14
4.2.2 - horizontal protection for hazardous areas 15
4.2.3 - vertical protection for hazardous areas by light grids (> 40 mm resolutiion and single beams) 16
4.3 Construction requirements 17
4.3.1 - Installation without additional screening 17
4.3.2 - Protection against reaching over or under barriers 17
4.3.3 - Protection against avoiding barriers through cascading or additional screening 17
4.3.4 - Distance from reflective surfaces 18
4.3.5 - Arrangement of two safety light barriers 18
4.4 Mounting and Adjustment 19
4.4.1 Adjustment Instructions with standard fastening brackets / Isolated mounting on EMV disturbances 19
4.4.2 Option: angular brackets (dimension drawing included) 20
4.4.3 Option: rubber-metal connection (to avoid intense vibrations) 21
4.4.4 Option: multi-sided screening by using tilted mirrors (dimension drawing included) 21
4.4.5 Option: Assembly columns / Shock Protection (dimension drawing included) 23
5 Electric Connection ULVT / BLVT 25
5.1 Integrated connector plug 25
5.2 Electric connection ratings 25
5.3 Connectors 25
5.4 Connection examples - without optional safety switching units 26
5.4.1 ULVT 500/2R: connecting advice 26
5.4.2 Safety mode with restart interlock/ with valve or contactor check 26
5.4.3 Safety mode without restart interlock/ without valve or contactor check 26
5.4.4 SPS drive 26
6Commissioning 27
6.1 Commissioning 27
6.2 Adjustment instructions / LED-displays 27
6.3 Trouble-shooting / LED-displays 28
chapters 7 ... 11 --->>
Table of contents
FIESSLER
E L E K T R O N I K
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Fiessler Elektronik GmbH & Co. KG Doku Nr. 958 Stand 22.01.2018 RK Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]

chapter contents Page
7BLVT-Blanking functions (Blanking) 29
7.1 Safety Advices 29
7.2 Typical applications of the different blanking functions 30
7.3 Important instructions and available resolutions of the different blanking functions 31
7.4 Programmer units for programming the blanking functions 32
7.5 Programming up to 5 different blanking patterns and activating them via selector switch 32
8Cascading of Light curtains 33
8.1 Additional safety advices tor cascaded Light grids 33
8.2 Application examples 33
8.3 How to utilize and to combine the systems (Cat. 4 und Cat. 2 ) 34
8.4 Order designations 34
8.5 Response time (examples) 35
8.6 Safety distance (example) 35
8.7 Installation 36
8.8 Connection 36
8.8.1 Connection example 1 36
8.8.2 Connection example 2 37
8.9 Commissioning 38
8.10 Commissioning / Protective Field States and LED- Displays 39
9 Additional functions with safety switching units 40
10 Accessories and Spare Parts 41
11 Notes 42
12 Service / Maintenance / Warranty 46
13 Declaration of conformity 47
14 Additional safety products 48
Table of contents
FIESSLER
E L E K T R O N I K
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Fiessler Elektronik GmbH & Co. KG Doku Nr. 958 Stand 22.01.2018 RK Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]

All safety instructions are marked with this symbol and must be observed under all circumstances!
1.1 Prerequisites for the utilisation of the safety light curtains:
1Safety advice Please observe!
The unintentional repetition of a hazardous movement
must be prevented by the appropriate safety facilities.
-The safety category (Type 4) of the accident-prevention
light barrier should be at least the same as safety category
of the machine.
Approval:
Approval of the construction and the tests should be
carried out by competent personnel who are in possession
of all information provided by the supplier of the machine
and the BWS.
Annual inspection:
The operator must ensure that a competent person is
assigned with the task of inspecting the light barrier on a
yearly basis. This person may, for example, comprise an
employee of the light barrier manufacturer or of the
operator.
The safety distance between the protective field and the
hazardous area must be large enough to ensure that when
penetrating the protective field, the hazardous areas cannot
be reached before the hazardous movement is interrupted
or ended.
Access to the hazardous area must only be possible
through the protective field (reaching under, over or around
the field must not be possible).
Passing through the light barrier must only be possible if
the restart interlock is activated subsequent to the light
barrier being interrupted.
A new command to activate the next hazardous movement
must only be implemented via a dead-man switch. It must
not be possible for this start button to be actuated from
within the hazardous area: The switch must be located at a
point from which the accessible area can be viewed without
obstruction.
The hazardous state of a machine must be interrupted by
the sensory function of the ESPE.
The safe operation of the entire system can only be ensured through adherence to these operating
instructions and the corresponding accident prevention regulations.
These operating instructions comprise part of the light barrier and must be retained at the installation site.
All specifications of these operating instructions must be observed at all times. These operating instructions provide the
user with important information concerning the proper use of the ULVT/BLVT safety light barriers. .
When using safety light barriers, the effective standards and guidelines must be observed! The local authorities or
trade associations will provide you with the relevant information. Currently effective conditions and the regulations of the trade
associations must also be adhered to.
Qualified personnel. Installation, commissioning and maintenance must only be carried out by qualified personnel.
Danger sign When operating a machine with ULVT/BLVT ... safety light barriers, it must be ensured that nobody is located
within a hazardous area. A danger sign to this effect must be attached to the machine.
Light barriers do not provide protection from flying objects resulting from the operation of the machine.
When using the ULVT/ BLVT with an external switching unit or similar succeeding controls, it must be ensured by ap-
propriate, either contructional or organisatorial means, that at least once within 24 hours, a close-down of the light curtain by
intentional interruption ot testing of the protective field takes place in order to prevent any unnoticed accumulation of mal-
functions.
Caution, daily inspection (after 24 hours at the latest): Before the start of a shift, the light barrier must be checked as
follows: Using the test rod*, the light barrier is to be interrupted on the transmitting side from start to finish in such a way that
the light field is only covered by this part. The green LED (or the yellow LED in the operating mode with restart interlock) must
not light up from start to finish.
* The diameter of the test rod must correspond to the obstacle size specified on the nameplate of the receiving side.Acht
When using the BLVT Blanking features, the additional safety advices and all other instructions in chapter 7 must be
observed!
When using the Cascading features, the additional safety advices and all other instructions in chapter 8 must be
observed!
FIESSLER
E L E K T R O N I K
Maintenance information: The ULVT/BLVT... system is maintenance-free depending on the construction. (This does not,
however, release the obligation to carry out the prescribed annual inspection pursuant to EN 61496, ZH 1/281 and/or ZH 1/
597.) On request by the customer, the Fiessler Elektronik company will carry out the initial approval and annual
inspection. In addition, customer-training seminars concerning the implementation of the annual inspection are held at
regular intervals.
The protective panels in front of the transmitter and receiver should simply be cleaned at regular intervals with a solvent-free
detergent. Solvents can damage the plexiglass panels of the transmitter and receiver. As an alternative, light barriers with
silicate glass are available.
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Fiessler Elektronik GmbH & Co. KG Doku Nr. 958 Stand 22.01.2018 RK Phone: +49 (0) 711 / 91 96 97-0 Internet: http://www.fiessler.de
Fax : +49 (0) 711 / 91 96 97-50 eMail: [email protected]