SICK deTem4 LT Muting A/P - Multiple light beam safety device Operating instructions

SICK
Brand
SICK
Model
deTem4 LT Muting A/P - Multiple light beam safety device
Type
Operating instructions
O P E R A T I N G I N S T R U C T I O N S
deTem4 LT Muting A/P
Multiple light beam safety device
Described product
deT
em4 LT Muting A/P
Manufacturer
SICK AG
Erwin-Sick-Str. 1
79183 Waldkirch
Germany
Legal information
T
his work is protected by copyright. Any rights derived from the copyright shall be
reserved for SICK AG. Reproduction of this document or parts of this document is only
permissible within the limits of the legal determination of Copyright Law. Any modifica‐
tion, abridgment or translation of this document is prohibited without the express writ‐
ten permission of SICK AG.
The trademarks stated in this document are the property of their respective owner.
© SICK AG. All rights reserved.
Original document
T
his document is an original document of SICK AG.
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Contents
1 About this document........................................................................ 6
1.1 Function of this document....................................................................... 6
1.2 Scope......................................................................................................... 6
1.3 Target groups of these operating instructions........................................ 6
1.4 Additional information.............................................................................. 6
1.5 Symbols and document conventions...................................................... 7
2 Safety information............................................................................ 8
2.1 General safety notes................................................................................ 8
2.2 Intended use............................................................................................. 8
2.3 Improper use............................................................................................. 8
2.4 Requirements for the qualification of personnel.................................... 8
3 Product description........................................................................... 10
3.1 Setup and function................................................................................... 10
3.2 Product characteristics............................................................................ 11
3.2.1 Device overview....................................................................... 11
3.2.2 Beam coding............................................................................ 13
3.2.3 Alignment aid........................................................................... 13
3.2.4 Restart interlock...................................................................... 13
3.2.5 Application diagnostic output................................................. 13
3.2.6 Muting....................................................................................... 14
3.2.7 C1 muting release................................................................... 14
3.2.8 Near Field Communication (NFC)........................................... 14
3.2.9 Status indicators...................................................................... 15
3.3 Example applications............................................................................... 17
4 Project planning................................................................................ 18
4.1 Manufacturer of the machine.................................................................. 18
4.2 Operating entity of the machine.............................................................. 18
4.3 Design........................................................................................................ 19
4.3.1 Scanning range and beam separation................................... 19
4.3.2 Minimum distance from the hazardous point....................... 19
4.3.3 Minimum distance from reflective surfaces.......................... 21
4.3.4 Protection against interference from systems in close prox‐
imit
y to each other................................................................... 23
4.3.5 Muting....................................................................................... 25
4.4 Integration in the electrical control system............................................. 33
4.4.1 Restart interlock...................................................................... 35
4.4.2 External device monitoring (EDM).......................................... 36
4.4.3 Application diagnostic output................................................. 37
4.4.4 Muting lamp............................................................................. 37
4.4.5 Muting....................................................................................... 37
4.4.6 Connection diagrams.............................................................. 38
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4.5 Testing plan............................................................................................... 40
4.5.1 Test rod check.......................................................................... 41
4.5.2 Visual check of the machine and the protective device........ 42
5 Mounting............................................................................................. 44
5.1 Safety......................................................................................................... 44
5.2 Unpacking.................................................................................................. 44
5.3 Mounting the muting arms....................................................................... 45
5.4 Mounting................................................................................................... 48
5.4.1 Mounting the QuickFix bracket............................................... 50
5.4.2 Mounting the FlexFix bracket.................................................. 52
6 Electrical installation........................................................................ 55
6.1 Safety......................................................................................................... 55
6.2 System connection (M12, 8-pin)............................................................. 57
6.3 Reset/override pushbutton connection (M12, 5-pin)............................ 57
6.4 Muting sensor connection (M12, 5-pin).................................................. 58
7 Configuration..................................................................................... 59
7.1 Overview.................................................................................................... 59
7.2 Factory settings......................................................................................... 59
7.2.1 Set to factory settings............................................................. 59
7.3 Configuration mode.................................................................................. 60
7.4 Configuring beam coding......................................................................... 60
7.5 Configuring the C1 muting release.......................................................... 61
7.6 Configuring muting................................................................................... 61
7.7 Configuring the restart interlock.............................................................. 62
7.8 Configuring application diagnostic output.............................................. 63
8 Commissioning.................................................................................. 64
8.1 Safety......................................................................................................... 64
8.2 Overview.................................................................................................... 64
8.3 Switching on.............................................................................................. 65
8.4 Alignment of the active and passive units.............................................. 65
8.4.1 Aligning the active and passive units..................................... 66
8.4.2 Alignment with the QuickFix bracket...................................... 66
8.4.3 Alignment with the FlexFix bracket or with the replacement
br
acket...................................................................................... 67
8.4.4 Indication of the alignment quality......................................... 68
8.5 Check during commissioning and modifications.................................... 69
9 Operation............................................................................................ 70
9.1 Overview.................................................................................................... 70
9.2 Safety......................................................................................................... 70
9.3 Regular thorough check........................................................................... 71
9.4 LEDs........................................................................................................... 72
CONTENTS
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10 Maintenance...................................................................................... 75
10.1 Safety......................................................................................................... 75
10.2 Regular cleaning....................................................................................... 75
10.3 Regular thorough check........................................................................... 76
11 Troubleshooting................................................................................. 77
11.1 Overview.................................................................................................... 77
11.2 Safety......................................................................................................... 77
11.3 Diagnostic LEDs........................................................................................ 77
11.3.1 Indications when switching on................................................ 78
11.3.2 Status indicator........................................................................ 80
11.3.3 Fault indicators........................................................................ 83
12 Decommissioning............................................................................. 86
12.1 Disposal..................................................................................................... 86
13 Technical data.................................................................................... 87
13.1 Data sheet................................................................................................. 87
13.2 Length of cable......................................................................................... 90
13.3 Table of weights........................................................................................ 90
13.4 Dimensional drawings.............................................................................. 91
14 Ordering information........................................................................ 94
14.1 Scope of delivery....................................................................................... 94
14.2 Ordering information................................................................................. 94
15 Accessories........................................................................................ 96
15.1 Brackets.................................................................................................... 96
15.2 Mounting accessories.............................................................................. 97
15.3 Weld spark guard...................................................................................... 97
15.4 Connectivity............................................................................................... 98
15.5 Alignment aid............................................................................................ 99
15.6 Cleaning agent.......................................................................................... 100
15.7 Test rods.................................................................................................... 100
15.8 Muting accessories................................................................................... 100
16 Annex.................................................................................................. 102
16.1 Compliance with EU directives................................................................. 102
16.2 Note on specified standards.................................................................... 103
16.3 Checklist for initial commissioning and commissioning........................ 104
17 List of figures..................................................................................... 105
18 List of tables....................................................................................... 106
CONTENTS
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1 About this document
1.1 Function of this document
These operating instructions contain the information needed during the life cycle of the
mult
iple light beam safety device.
Operating instructions of the multiple light beam safety device must be made available
to all people who work with the device.
Please read these operating instructions carefully and make sure that you understand
the content fully before working with the multiple light beam safety device.
1.2 Scope
These operating instructions only apply to the deTem4 LT Muting A/P multiple light
be
am safety devices with the following type label entries in the “Operating Instructions”
field:
•
8024642
This document is included with the following SICK part numbers (this document in all
available language versions):
8024642
1.3 Target groups of these operating instructions
Some chapters of these operating instructions are intended for certain target groups.
Ho
wever, the entire operating instructions are relevant for intended use of the product.
Table 1: Target groups and selected chapters of these operating instructions
Target group Chapters of these operating instructions
Project developers (planners, developers,
de
signers)
"Project planning", page 18
"Configuration", page 59
"Technical data", page 87
"Accessories", page 96
Installers "Mounting", page 44
Electricians "Electrical installation", page 55
Safety experts (such as CE authorized repre‐
sent
atives, compliance officers, people who
test and approve the application)
"Project planning", page 18
"Configuration", page 59
"Commissioning", page 64
"Technical data", page 87
"Checklist for initial commissioning and com‐
missioning", page 104
Operators "Operation", page 70
"T
roubleshooting", page 77
Maintenance personnel "Maintenance", page 75
"T
roubleshooting", page 77
1.4 Additional information
www.sick.com
T
he following information is available on the Internet:
•
This document in other languages
•
Data sheets and application examples
•
CAD data and dimensional drawings
1 A
BOUT THIS DOCUMENT
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•
C
ertificates (e.g. EU declaration of conformity)
•
Guide for Safe Machinery Six steps to a safe machine
1.5 Symbols and document conventions
The following symbols and conventions are used in this document:
Safety notes and other notes
DANGER
Indic
ates a situation presenting imminent danger, which will lead to death or serious
injuries if not prevented.
WARNING
Indic
ates a situation presenting possible danger, which may lead to death or serious
injuries if not prevented.
CAUTION
Indic
ates a situation presenting possible danger, which may lead to moderate or minor
injuries if not prevented.
NOTICE
Indic
ates a situation presenting possible danger, which may lead to property damage if
not prevented.
NOTE
Indic
ates useful tips and recommendations.
Instructions to action
b
The arrow denotes instructions to action.
1. The sequence of instructions for action is numbered.
2. Follow the order in which the numbered instructions are given.
✓
The check mark denotes the result of an instruction.
LED symbols
These symbols indicate the status of an LED:
o
The LED is off.
Ö
The LED is flashing.
O
The LED is illuminated continuously.
Active and passive units
T
hese symbols indicate the active and passive unit of the device:
This symbol indicates the active unit.
This symbol indicates the passive unit.
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2 Safety information
2.1 General safety notes
DANGER
If t
he safety component is integrated incorrectly, the dangerous state may be ended to
late.
b
Plan the integration of the safety component in accordance with the machine
requirements, see "Project planning", page 18.
2.2 Intended use
The deTem4 LT Muting A/P multiple light beam safety device is an electro-sensitive pro‐
t
ective device (ESPE) and is suitable for the following applications:
•
Single-sided access protection
The deTem4 LT Muting A/P multiple light beam safety device must only be used within
t
he limits of the prescribed and specified technical data and operating conditions at all
times.
Any instance of improper use, incorrect modification, or manipulation of the deTem4 LT
Muting A/P multiple light beam safety device shall void any warranty provided by SICK
AG; furthermore, SICK AG shall not accept any responsibility or liability for any resulting
damage and consequential damage.
2.3 Improper use
The multiple light beam safety device works as an indirect protective measure and can‐
no
t provide protection from pieces thrown from application nor from emitted radiation.
Transparent objects are not detected.
Among others, the multiple light beam safety device is not suitable for the following
applications:
•
Outdoors
•
Underwater
•
In explosion-hazardous areas
•
At altitudes over 3,000 m above sea level
•
In environments with increased levels of ionizing radiation
2.4 Requirements for the qualification of personnel
The protective device must be configured, installed, connected, commissioned, and ser‐
v
iced by qualified safety personnel only.
Project planning
For project planning, a person is considered competent when he/she has expertise and
experience in the selection and use of protective devices on machines and is familiar
with the relevant technical rules and national work safety regulations.
Mechanical mounting, electrical installation, and commissioning
For the task, a person is considered qualified when he/she has the expertise and expe‐
rience in the relevant field and is sufficiently familiar with the application of the protec‐
tive device on the machine to be able to assess whether it is in an operationally safe
state.
2 S
AFETY INFORMATION
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Configuration
F
or configuration, a person is considered competent when he/she has the expertise
and experience in the relevant field and is sufficiently familiar with the application of
the protective device on the machine that he/she can assess its work safety aspects.
Operation and maintenance
For operation and maintenance, a person is considered competent when he/she has
the expertise and experience in the relevant field and is sufficiently familiar with the
application of the protective device on the machine and has been instructed by the
machine operator in its operation.
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3 Product description
3.1 Setup and function
Overview
T
he multiple light beam safety device deTem4 LT Muting A/P is an electro-sensitive pro‐
tective device (ESPE) consisting of a sender and receiver unit (hereinafter referred to as
the active unit) and a deflection unit (hereinafter referred to as the passive unit). The
sender and receiver unit is located in the same housing.
The hazardous area is protected by the infrared light beams between the active unit
and the passive unit on the opposite side. The infrared beams of the active unit hit the
passive unit and are sent back to the active unit with a parallel offset.
When one or more light beams are completely interrupted, the protective device reports
the interruption in the light path to the secure output signal switching devices (OSSDs)
by a signal change. The machine or its control must safely analyze the signals (for
example using a safe control or safety relays) and stop the dangerous state.
The deTem4 LT Muting A/P multiple light beam safety device is used for muting applica‐
tions, i.e. for temporarily bridging the electro-sensitive protective device. Muting arms
are mounted on the active and passive units for this purpose. Two muting sensors are
attached to each muting arm for the active unit, and two reflectors on each muting arm
for the passive unit. The muting sensors perform the task of distinguishing between
people and materials. This enables materials to be transported into or out of a haz‐
ardous area without interrupting the work process. Depending on the number of muting
arms and the muting sensors attached to them, it is possible to perform either exit
monitoring or entry/exit monitoring.
Figure 1: Active and passive units
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Beam separation and number of beams
T
he beam separation is the distance between two adjacent light beams, measured
from the center of one beam to the center of the next.
Scanning range
The scanning range is the maximum dimension of the light path between active and
passive units.
The scanning range is reduced by using a weld spark guard.
Further topics
•
"D
ata sheet", page 87
•
"Weld spark guard", page 97
3.2 Product characteristics
3.2.1 Device overview
§
!
"
$
&
/
%
Figure 2: Overview of the active unit
!
End cap with integrated LED
"
Active unit
§
Terminal compartment
$
Connection for muting signal A
%
Connection for muting signal B
&
Connection for reset/override pushbutton, e.g., ER12
/
System connection
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$
%
)
(
?
?
&
/
!
"
§
Figure 3: Active unit with mounted muting arms
!
End cap with integrated LED
"
Active unit
§
Terminal compartment
$
Connection for muting signal A
%
Connection for muting signal B
&
Connection for reset/override pushbutton, e.g., ER12
/
System connection
(
Muting arm A
)
Muting arm B
?
Muting sensors
3 PRODUCT DESCRIPTION
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!
Figure 4: Overview of the passive unit for short scanning ranges
!
Light guide deflection
3.2.2 Beam coding
Depending on its configuration, the multiple light beam safety device operates with 1 of
2 be
am codings: code 1 or code 2. In order to avoid mutual interference between 2
neighboring multiple light beam safety devices, one can be operated with code 1 and
the other with code 2.
3.2.3 Alignment aid
Diagnostic LEDs are installed in the active unit of the multiple light beam safety device.
For a simple alignment of the passive unit, diagnostic LEDs 1 … 8 indicate the align‐
ment quality once the device has been switched on.
The alignment quality of the beams close to the system connection are indicated via
the diagnostic LEDs 1 … 4. The alignment quality of the beams distant from the system
connection are indicated via the diagnostic LEDs 5 … 8.
3.2.4 Restart interlock
The multiple light beam safety device has an integrated restart interlock. The function
c
an be configured during commissioning.
A restart interlock prevents the machine from starting again once the protective device
has been triggered. First, the operator must press a reset pushbutton to return the pro‐
tective device to monitoring status. Then, in a second step, the operator can restart the
machine.
The reset pushbutton can be connected locally at the system connection or at the con‐
nection for the reset/override pushbutton.
3.2.5 Application diagnostic output
The multiple light beam safety device has an application diagnostic output at the sys‐
t
em connection and at the connection for a reset/override pushbutton.
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Depending on the configuration, the application diagnostic output signals a certain sta‐
t
us of the protective device, e.g. if the reset pushbutton must be engaged.
For a signal of the protective device to be displayed, a light can be connected to the
application diagnostic output or the signal can be transmitted to the machine con‐
troller.
The following signals can be output over the application diagnostic output:
•
R
eset required
•
Muting status
•
Override required
3.2.6 Muting
Muting according to IEC 62046 temporarily bypasses the protective action of the multi‐
ple li
ght beam safety device so that material can be transported to or from a machine
or system. As a result, the work process remains uninterrupted.
The function is configured during commissioning.
The distinction between people and materials is made by 2 signals that are indepen‐
dent of each other. Based on the logical evaluation of these signals, the protective
device is bypassed if a valid muting condition is present. As soon as something other
than material enters the hazardous area, the work process is interrupted.
3.2.7 C1 muting release
The protective device has an internal muting release. The C1 muting release function
c
an be configured during commissioning and is located at In4 of the system connec‐
tion.
The C1 muting release function is a supplementary signal from an external source that
is only used for muting release and is required for every muting cycle.
3.2.8 Near Field Communication (NFC)
Overview
T
he active unit of the multiple light beam safety device has an integrated NFC interface
for transmitting diagnostic data of the protective device to an NFC-capable device.
The integrated NFC interface is intended for temporary use.
Diagnostic data
T
he following diagnostic data can be displayed in an NFC-capable device:
•
Device information and device status, e.g. name, serial number, type code, status
of OSSDs, muting status or quality of alignment
•
Configuration of the device, e.g. whether the restart interlock is activated
•
Fault diagnosis with specification of the error code, error description, diagnostic
LED and troubleshooting
An NFC-capable antenna is integrated behind the front screen of the multiple light
beam safety device for transmitting the data. The area is marked with the NFC-symbol.
Figure 5: NFC symbol
1)
1)
T
he N-Mark is a trademark or registered trademark of NFC Forum, Inc. in the United States and in other countries.
3 P
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Calling up diagnostic data
T
o be able to call up information, you need an NFC-capable device, e.g. a smartphone
and the SICK Safety Assistant app provided by SICK.
b
Hold the NFC-capable mobile device near the marked NFC-area on the lower end
of the active unit to call up the diagnostic data.
Complementary information
The diagnostic data can also be read out in the voltage-free state of the protective
device. However, you will receive more information if the protective device is supplied
with voltage.
3.2.9 Status indicators
Overview
T
he LEDs of the active unit signal the operational status of the multiple light beam
safety device.
$
§
1
2
3
4
5 6 7 8
!
OSSD
INFO
"
Figure 6: Status indicators of the active unit
Position LED color Display Labeling
!
Red/green OSSD status OSSD
"
Red/yellow/green Information display;
sho
ws the status of
the light path and
additional information
about the status dis‐
play
INFO
§
Blue/red/yellow/white Diagnostics 1, 2, 3, 4, 5, 6, 7, 8
$
Red/yellow/green End cap with inte‐
gr
ated LED
–
The integrated LED in the end cap of the active unit is responsible for the light behavior
of t
he INFO-LED.
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Further topics
•
"Dia
gnostic LEDs", page 77
3.2.9.1 Indication of diagnostic LEDs
Table 2: Colors and their meaning
Color Color Meaning
O
White Configuration status
O
Blue Alignment quality
O
Red Fault indication
O
Yellow Warning
o LED of
f. Ö LED flashes. O LED illuminates.
Table 3: Indication of the configuration status
Diagnostics LEDs Color Configuration
1
O W
hite
Reserved.
2
O W
hite
Reserved.
3
o
Beam coding 1 is configured.
O W
hite
Beam coding 2 is configured.
4
O W
hite
Restart interlock is configured.
5
O W
hite
Exit monitoring is configured if diagnostic LED
5 li
ghts up white and diagnostic LED 6 is off.
6
O W
hite
Entry/exit monitoring is configured if both diag‐
nos
tic LED 6 and diagnostic LED 5 light up
white.
7
O W
hite
C1 muting release is configured.
8
O W
hite
Reserved.
o LED of
f. Ö LED flashes. O LED illuminates.
Table 4: Indication of the alignment quality
Diagnostics LEDs Color Meaning
1 ... 4
O Blue
Display of alignment quality of the beams close
t
o the system connection.
If only one diagnostic LED lights up, the align‐
ment is insufficient. If all 4 diagnostic LEDs
light up, the alignment is excellent.
5 … 8
O Blue
Display of alignment quality of the beams dis‐
t
ant from the system connection.
If only one diagnostic LED lights up, the align‐
ment is insufficient. If all 4 diagnostic LEDs
light up, the alignment is excellent.
o LED of
f. Ö LED flashes. O LED illuminates.
Table 5: Fault indication
Diagnostics LEDs Color Meaning
1 ... 8
O R
ed
A red illuminated diagnostic LED signals the
f
unction at which an error has occurred.
1 ... 8
Ö R
ed
A red flashing diagnostic LED signals the rea‐
son f
or the error.
o LED of
f. Ö LED flashes. O LED illuminates.
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Table 6: Warnings
Diagnostics LED Color Meaning
1 ... 8
O Y
ellow
A yellow illuminated diagnostic LED signals
whic
h function is affected.
1 ... 8
Ö Y
ellow
A yellow flashing diagnostic LED signals the
r
eason for the warning.
o LED of
f. Ö LED flashes. O LED illuminates.
Example: If diagnostic LED 5 lights up yellow and diagnostic LED 3 flashes yellow, the
sensor g
ap monitoring was exceeded.
Further topics
•
"Diagnostic LEDs", page 77
3.3 Example applications
Figure 7: Access protection
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4 Project planning
4.1 Manufacturer of the machine
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Use of the multiple light beam safety device requires a risk assessment. Check
whether additional protective measures are required.
b
Comply with the applicable national regulations derived from the application (e.g.,
work safety regulations, safety rules, or other relevant safety guidelines).
b
Do not combine the components of the multiple light beam safety device with
components from other multiple light beam safety devices.
b
Apart from the procedures described in this document, the components of the
multiple light beam safety device must not be opened.
b
The components of the multiple light beam safety device must not be tampered
with or changed.
b
Improper repair of the protective device can lead to a loss of the protective func‐
tion. Do not carry out any repairs on the device components.
4.2 Operating entity of the machine
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Changes to the electrical integration of the multiple light beam safety device in the
machine control and changes to the mechanical mounting of the multiple light
beam safety device necessitate a new risk assessment. The results of this risk
assessment may require the operating entity of the machine to meet a manufac‐
turer’s obligations.
b
Apart from the procedures described in this document, the components of the
multiple light beam safety device must not be opened.
b
The components of the multiple light beam safety device must not be tampered
with or changed.
b
Improper repair of the protective device can lead to a loss of the protective func‐
tion. Do not carry out any repairs on the device components.
4 PROJECT PLANNING
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4.3 Design
Important information
DANGER
H
azard due to lack of effectiveness of the protective device
Persons and parts of the body to be protected may not be recognized in case of non-
observance.
b
Make sure that the following design requirements are met so that the multiple
light beam safety device can fulfill its protective function.
°
The active and passive units must be arranged such that persons or parts of
the body are safely detected when they enter the hazardous area.
°
Reaching under, over, and around as well as moving the multiple light beam
safety device must be prevented.
°
Check whether additional safety measures (e.g. restart interlock) are neces‐
sary when it is possible for people to be located between the protective
device and the hazardous point without being detected.
DANGER
H
azard due to lack of effectiveness of the protective device
Certain types of light radiation can influence the protective device, e.g., light radiation
from fluorescent lamps with electronic ballast installed in the path of the beam, or
beams from laser pointers directed at the active unit.
b
If this type of light radiation is present in the environment of the protective device,
take additional measures to ensure that the protective device does not become
dangerous.
Further topics
•
"Mount
ing", page 44
4.3.1 Scanning range and beam separation
Beam separation and number of beams
T
he beam separation is the distance between two adjacent light beams, measured
from the center of one beam to the center of the next.
Scanning range
The scanning range is the maximum dimension of the light path between active and
passive units.
Further topics
•
"Minimum distance from reflective surfaces", page 21
•
"Technical data", page 87
4.3.2 Minimum distance from the hazardous point
A minimum distance must be maintained between the multiple light beam safety
de
vice and the hazardous point. This distance is required to prevent a person or part of
the body from reaching the hazardous area before the dangerous state of the machine
state has completed.
PROJECT PLANNING 4
8024802/2020-07-17 | SICK O P E R A T I N G I N S T R U C T I O N S | deTem4 LT Muting A/P
19
Subject to change without notice
Calculating the minimum distance according to ISO 13855
T
he calculation of the minimum distance is based on international or national stan‐
dards and statutory requirements applicable at the place of installation of the machine.
If the minimum distance is calculated according to ISO 13855, then it depends on the
following points:
•
Machine stopping time (time interval between triggering the sensor function and
the end of the machine’s dangerous state)
•
Response time of the protective device
•
Approach speed of personnel
•
Type of approach: orthogonal (at right angles)
•
Parameters specified based on the application
For the USA (scope of OSHA and ANSI), different regulations may apply, e.g.:
a) Laws: Code of Federal Regulations, Title 29 (CFR29) Part 1910.217
b) Standards: ANSI B11.19
Complementary information
A
dditional information is available in the ISO 13855 standard and in the Guidelines
Safe Machinery.
SICK offers a stopping/run-down time measurement service in many countries.
Further topics
•
"T
echnical data", page 87
4.3.2.1 Calculating minimum distance from the hazardous point
Important information
DANGER
Minimum dis
tance from the hazardous point is too small
The dangerous state of the machine may not be stopped or not be stopped in a timely
manner due to a minimum distance that is too small.
b
Calculate the minimum distances for the machine in which the multiple light beam
safety device is integrated.
b
When mounting the multiple light beam safety device, observe the minimum dis‐
tance.
Approach
The example shows the calculation of the minimum distance for an orthogonal (at right
angles) approach to the multiple light beam safety device. Depending on the applica‐
tion and the ambient conditions, a different calculation may be required (e.g., at a dif‐
ferent angle to the direction of approach or an indirect approach).
1. Calculate S using the following formula:
S = 1,600 mm/s × T + C
where:
°
S = minimum dis
tance in millimeters (mm)
°
T = machine stopping time + response time of the protective device after
interruption in the light path in seconds (s)
4 P
ROJECT PLANNING
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O P E R A T I N G I N S T R U C T I O N S | deTem4 LT Muting A/P 8024802/2020-07-17 | SICK
Subject to change without notice
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SICK deTem4 LT Muting A/P - Multiple light beam safety device Operating instructions

SICK
Brand
SICK
Model
deTem4 LT Muting A/P - Multiple light beam safety device
Type
Operating instructions
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