SICK Safeguard Detector (Flexi Soft variant) Operating instructions

SICK
Brand
SICK
Model
Safeguard Detector (Flexi Soft variant)
Type
Operating instructions
O P E R A T I N G I N S T R U C T I O N S
Safeguard Detector
Safety System
Described product
S
afeguard Detector
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........................................................................ 5
1.1 Function of this document....................................................................... 5
1.2 Scope......................................................................................................... 5
1.3 Target groups and structure of these operating instructions................ 5
1.4 Further information................................................................................... 5
1.4.1 Example projects..................................................................... 6
1.5 Symbols and document conventions...................................................... 6
2 Safety information............................................................................ 8
2.1 General safety note.................................................................................. 8
2.2 Intended use............................................................................................. 8
2.3 Requirements for the qualification of personnel.................................... 9
3 Product description........................................................................... 10
3.1 Application description............................................................................. 10
3.2 Safety function.......................................................................................... 11
3.3 Safe state.................................................................................................. 11
3.4 System components................................................................................. 12
4 Project planning................................................................................ 14
4.1 Security...................................................................................................... 14
4.2 Prerequisites............................................................................................. 14
4.3 Setup location........................................................................................... 15
4.4 Response time.......................................................................................... 15
4.5 Integrating into the electrical control....................................................... 15
4.6 Testing plan............................................................................................... 16
4.6.1 Recommendations for regular checks................................... 16
4.6.2 Carrying out thorough checks................................................. 16
5 Mounting............................................................................................. 18
5.1 Placing the sensors.................................................................................. 18
5.2 Mounting the sensors............................................................................... 19
6 Electrical installation........................................................................ 20
6.1 Security...................................................................................................... 20
6.2 Wiring notes.............................................................................................. 20
6.3 Interfaces.................................................................................................. 21
7 Configuration..................................................................................... 22
7.1 Safety......................................................................................................... 22
7.2 Positioning and aligning the sensors....................................................... 22
7.3 Configuration software............................................................................. 22
7.4 Application logic........................................................................................ 23
8 Commissioning.................................................................................. 26
CONTENTS
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8.1 Validation................................................................................................... 26
9 Repair.................................................................................................. 28
9.1 Regular thorough check........................................................................... 28
10 Troubleshooting................................................................................. 29
11 Disposal.............................................................................................. 30
12 Technical data.................................................................................... 31
12.1 Safety-related parameters....................................................................... 31
12.2 General sensor data................................................................................. 31
12.3 Sensor dimensional drawing.................................................................... 32
13 Ordering information........................................................................ 33
13.1 Ordering information for the Safeguard Detector application package 33
13.2 Ordering information for accessories...................................................... 34
14 Annex.................................................................................................. 35
14.1 Compliance with EU directives................................................................. 35
14.2 Checklist for initial commissioning and commissioning........................ 36
15 Glossary.............................................................................................. 37
16 List of figures..................................................................................... 39
17 List of tables....................................................................................... 40
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
S
afeguard Detector application package. This document describes:
•
The system components
•
The project planning
•
The mounting and electrical installation
•
The configuration
•
The necessary thorough checks
•
The commissioning
•
The maintenance
•
The troubleshooting
•
The dismantling and disposal
1.2 Scope
These operating instructions are included with SICK part number 8019464 (all avail‐
able lan
guages of this document).
Furthermore, the following documents also contain information about individual compo‐
nents of the Safeguard Detector application package:
Table 1: Underlying operating instructions
Document Title Part number
Operating instructions Flexi Soft modular safety con‐
t
roller hardware
8012999
Operating instructions Flexi Soft in the Flexi Soft
Designer software
8012998
NOTICE
T
he operating instructions of the individual components apply. These operating instruc‐
tions contain requirements that have priority. If the operating instructions of the compo‐
nents contradict these operating instructions, the information given in these operating
instructions apply.
All operating instructions must be made available to all people who work with the appli‐
cation package.
Please read all operating instructions carefully and make sure that you understand the
content fully before working with the Safeguard Detector application package.
1.3 Target groups and structure of these operating instructions
These operating instructions are intended for the following target groups: project devel‐
oper
s (planners, developers, designers), installers, electricians, operators, and mainte‐
nance personnel.
The structure of these operating instructions is based on the life cycle phases of the
application: project planning, mounting, electrical installation, commissioning, opera‐
tion, and maintenance.
1.4 Further information
www.sick.com
T
he following information is available via the Internet:
ABOUT THIS DOCUMENT 1
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■
Other language versions of these operating instructions
■
Viewable and printable Flexi Soft operating instructions in different languages
■
The Flexi Soft Designer configuration software
■
Pre-configured project files for both sensor variants (2 Hz and 10 Hz)
■
Downloadable example applications
■
Guide for Safe Machinery (“Six steps to a safe machine”)
■
Type examination by TÜV Süd
1.4.1 Example projects
Example projects are available for this application package for the Flexi Soft Designer
c
onfiguration software. These are based on the components of the Safeguard Detector
application package.
The example projects can be downloaded at www.sick.com/Safeguard_Detector .
WARNING
T
he example projects are solely application examples for a safety function for fulfilling
machine safety. They can be used as a foundation for programming a specific safety
application of a machine, but qualified safety personnel must first make adjustments in
line with the specific safety requirements. The project planning software in the example
projects does not satisfy the safety requirements for your application without additional
programming.
The example projects have been tested and comply with the description of this docu‐
ment.
Table 2: Available example projects
Sensor variant Language Configuration checksum
2 Hz DE 0x4F8C33B9
10 Hz DE 0x41372A36
2 Hz EN 0x4F8C33B9
10 Hz EN 0xB27A2512
Use of example projects see "Applic
ation logic", page 23.
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.
1 ABOUT THIS DOCUMENT
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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
T
he 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.
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2 Safety information
This chapter contains general safety information about the Safeguard Detector applica‐
t
ion package. Further information about specific product use situations can be found in
the relevant chapters.
DANGER
W
hen using the Safeguard Detector application package, please also follow the safety
notes in the underlying operating instructions.
2.1 General safety note
The information and tools will not fulfill the safety requirements for your application
w
ithout further adjustments being made. The project planning provided by way of exam‐
ple is intended to serve as the basis to allow you to perform your own project planning
and programming in line with your specific requirements. What this means is that the
information and tools merely provide an example to demonstrate how a safety function
can be taken care of.
When it comes to your own project planning and programming, you will need to rely on
qualified staff given that it is your responsibility to ensure that the following require‐
ments are complied with at the very least:
b
Carrying out a risk assessment
b
Taking into account applicable standards
b
Verifying and validating the safety function
2.2 Intended use
MultiPulse photoelectric proximity sensor
T
he MultiPulse photoelectric proximity sensor (hereinafter referred to as “sensor”) is an
opto-electronic photoelectric proximity sensor with background suppression and is used
for the optical, non-contact detection of objects. If the product is used for any other pur‐
pose or modified in any way, any warranty claim against SICK AG shall become void.
Safeguard Detector application package
The Safeguard Detector Core application package is used on machines with material
transportation systems, such as a carton magazine on a packaging machine, to prevent
the risk of people getting injured by the empty material transportation system in the
event of interrupting the machine.
Overall, sensors and safety controllers are certified as a “logic unit for fulfilling a safety
function” according to the Machinery Directive, Annex IV, Item 21 and can be used for
safety-related tasks following these operating instructions.
The Safeguard Detector application package fulfills the requirements for a PDDB in
accordance with EN 60947-5-3.
The degree of risk corresponds to performance level d according to EN ISO 13849-1
and EN 60947-5-3, as well as SILCL2 according to EN 62061.
UL applications
T
he following must be observed for UL applications:
•
Only for use in applications in accordance with NFPA 79
•
The devices must be fused with a 1 A fuse that is suitable for 30 V DC
•
UL-listed adapters with connecting cables are available
•
The enclosure rating corresponds to UL enclosure type 1
2 S
AFETY INFORMATION
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2.3 Requirements for the qualification of personnel
The Safeguard Detector application package must be configured, mounted, connected,
c
ommissioned, and serviced by qualified safety personnel only.
Project planning
For project planning, a person is considered qualified 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 and commissioning
For mechanical mounting and commissioning, a person is considered qualified 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 to be able to assess
whether it is in an operationally safe state.
Electrical installation and validation
For electrical installation and commissioning, a person is considered qualified 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 to be able to assess
whether it is in an operationally safe state.
Configuration
For configuration, a person is considered qualified 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 to be able to assess whether it is in an operationally
safe state.
Operation and maintenance
For operation and maintenance, a person is considered qualified when he/she has the
expertise and experience in the relevant field and is sufficiently familiar with the appli‐
cation of the protective device on the machine and has been instructed by the user of
the machine in its operation.
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3 Product description
3.1 Application description
The Safeguard Detector Core application package is used on machines with material
t
ransportation systems, such as a carton magazine on a packaging machine, to prevent
the risk of people getting injured by the empty material transportation system in the
event of interrupting the machine.
The transportation opening to a packaging machine is monitored by at least two sen‐
sors. If there is carton in the magazine, an interruption is not possible because the
material acts like a physical guard. The same principle applies in other plants for other
objects acting as a physical guard (e.g., transport containers).
Figure 1: Material in the detection zone: carton magazine sufficiently filled
If t
he magazine is not sufficiently filled or is empty, a person can interrupt the machine.
This represents a dangerous state. The task of the Safeguard Detector application
package is to prevent this case by reacting in a safety-related manner and switching off
the system.
Figure 2: No material or too little material in the detection zone: carton magazine not sufficiently
f
illed
Limits of the system
T
he figure below shows the limits of the Safeguard Detector application package. The
system considered ends at the outputs of the SICK safety controller. Furthermore, the
user is solely responsible for the safe design of the entire system.
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RODUCT DESCRIPTION
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Figure 3: Block diagram of the safety chain and limits of the system
T
he Safeguard Detector application package represents the part of the safety chain
that combines the sensors and safety controller. This combination carries out a sub-
safety function. The safety chain can be expanded with additional logic elements
(e.g., a higher-level control).
3.2 Safety function
The sensors are evaluated by means of a SICK safety controller. If the system detects
t
hat the machine opening is not sufficiently covered by suitable objects, meaning that
an interruption or access to the hazardous point is not reliably prevented, the accord‐
ingly configured outputs of the safety controller are switched off.
The objects to be detected act as physical guards. They must be selected such that
they carry out their separating function sufficiently and reliably.
The separating function must also be effective during the lapsing of the safety function
response time (e.g., while hazardous system movements are stopping after the safety
function has been triggered).
DANGER
T
he technical process parameters must be set to ensure that so many objects are in
the infeed so that they still function as physical guards after the system is switched off
by the application package.
This means that the application package must switch off the system before the neces‐
sary number of objects in the infeed for maintaining protection is undercut. Otherwise,
this would mean that the user is at risk.
3.3 Safe state
In the safe state, the accordingly configured safe outputs are in the off state. The
machine is and remains switched off. The safe state is initiated in the following cases:
•
No object is detected in the protective field in the time in which the sensors are
being evaluated; the output of at least one sensor is therefore in the off state.
•
The connection between at least one sensor and the SICK safety controller has
been interrupted.
•
The power supply of at least one sensor and/or the SICK safety controller has
been interrupted.
•
An error is diagnosed in at least one sensor.
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•
T
he safety controller receives implausible output signals from the two sensors
beyond the duration of the configured maximum discrepancy time.
•
An internal error has occurred in the SICK safety controller or in one of its compo‐
nents.
3.4 System components
The Safeguard Detector application package consists of the following components:
•
A sensor pac
kage consisting of two identical MultiPulse photoelectric proximity
sensors (2x2 or 2x10 Hz).
•
A SICK safety controller
For product packages and accessories that can be ordered, see "Ordering information",
page 33.see "Ordering information", page 33.
Sensor technology
T
he sensor part of the system consists of two sensors, both of which are able to trigger
the safety function. As a result of this dual-channel structure (“1 out of 2”), the system
and sensor are single-failure-proof.
Two sensor variants with various pulse rates and response times are available.
Table 3: Safeguard Detector sensor package (with two MultiPulse photoelectric proximity sen‐
sors)
Designation Description Part number
SAPP02D-06A0002 2 MultiPulse photoelectric proximity sensors,
pulse r
ate: 2 Hz; detection zone:
30 … 100 mm; response time: 500 ms
1066074
SAPP02D-06A0001 2 MultiPulse photoelectric proximity sensors,
pulse r
ate: 10 Hz; detection zone:
30 … 100 mm; response time: 100 ms
1068895
NOTICE
•
T
he permissible sensor variants for the Safeguard Detector application package
cannot be configured. The customer is responsible for selecting the correct variant
and testing it during the validation.
•
Which sensor variant is suitable depends on the logic execution time of the safety
controller, among other things, see "General sensor data", page 31.see "General
sensor data", page 31.
•
Only sensor variants listed here may be used.
•
Only sensor pairs with the same pulse rate may be used. A 2 Hz sensor may not be
combined with a 10 Hz sensor.
The detection zone of the sensors is 30 to 100 mm:
•
Out
put Q vibrates at 2 or 10 Hz
1)
and the yellow status LED lights up if there is an
object in the detection zone.
•
Output Q switches off and the yellow status LED goes out if there is an object
within 0 … 30 mm.
1)
Depending on the selected sensor variant.
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Figure 4: Switching behavior of output Q
Safety controller
T
he logic part of the system consists of a Flexi Soft main module and at least one Flexi
Soft I/O module. The Flexi Soft modular safety controller can be configured using the
Flexi Soft Designer configuration software.
Table 4: Possible variants of the Flexi Soft main module
Designation Part number
FX3-CPU000000 1043783
FX3-CPU130002 1043784
FX3-CPU230002 1058999
FX3-CPU320002 1059305
Table 5: Possible variants of the Flexi Soft I/O modules
Designation Part number
FX3-XTIO84002 1044125
FX3-XTDI80002 1044124
FX3-XTDS84002 1061777
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4 Project planning
This chapter includes important information about the proper integration of the Safe‐
guar
d Detector application package for planners, developers, and designers.
4.1 Security
DANGER
D
angerous state of the machine
b
Make sure that the dangerous state of the machine is and remains switched off
during mounting, electrical installation, and commissioning.
b
Make sure that the safety controller outputs do not affect the machine during
mounting, electrical installation, and commissioning.
DANGER
H
azard due to lack of effectiveness of the protective device
If insufficiently mounted or subjected to excessive vibrations, the sensors may become
detached or damaged.
It is possible for people to interrupt the hazardous area when the machine is running.
b
Where necessary, take suitable vibration reduction measures.
DANGER
T
he path of the beam between the sensor and the object being detected must always
be kept free and must not be disrupted or manipulated by any other objects.
4.2 Prerequisites
Structural prerequisites
T
he system only detects the surfaces of objects and not intervention by a person into
the hazardous area of the machine. For this reason, ensure that the detected object
covers the hazardous area in a manner that sufficiently prevents access or interruption.
The distance between the object (e.g., carton blanks) and the machine must not be so
big that an interruption by a person is possible or else there may still be a hazard
despite an object having been detected (which is the movable physical guard).
If the object moves to the side in the magazine, an interruption opening may be cre‐
ated, which, in some circumstances, may not be detected by the sensors. Correspond‐
ing countermeasures must be taken by the machine user.
Optical properties of objects
DANGER
T
ransparent objects (film packing , bottles, etc.) may cause availability problems as a
result of their direction-changing effect on light and may lead to safety-relevant incor‐
rect switching. For this reason, such objects must be kept out of the sensing range of
the sensors.
The objects to be detected must have the following properties:
•
T
he remission of the objects must be between 6 % and 90 % of a diffusely scatter‐
ing nature. This corresponds to black to white carton surfaces.
•
Very dark and retroreflective or shiny objects may cause availability problems.
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4.3 Setup location
Positioning the sensors
It mus
t be ensured that enough objects are in the magazine to effectively prevent inter‐
vention.
The sensors must be positioned so that they trigger the safety function before the
respective quantity of objects is undercut.
4.4 Response time
When configuring the machine, the response time of the entire system must be taken
int
o consideration. If interruption is possible when a magazine is empty, the stopping
time of the system must be calculated and the distances to the hazardous points nec‐
essary based on this must be complied with.
When calculating the total response time, the following possible influences must be
taken into consideration:
•
Sensor response time
•
Safety controller response time
•
Signal transit time between OSSD and actuator
•
Actuator stopping/run-down time
4.5 Integrating into the electrical control
DANGER
If there is a foreign object in the sensor detection zone, this is not detected as an error
during normal operation. The same applies if the sensor becomes detached from its
position due to a mounting error and therefore constantly detects a foreign object, such
as the floor. An error of this kind is discovered by a plausibility check.
b
The logic program must check the plausibility of the sensor signals by evaluating
the discrepancy time, for examplesee "Application logic", page 23.
Restart interlock and reset
T
he sensors cannot differentiate between an object in the magazine and body parts. If
it is possible that a person could interrupt the hazardous area and therefore cancel out
the safe state, a restart interlock is required.
In this, the result of the series-connected frequency monitoringand the tolerant dual-channel
evaluation function blocks is sufficient as the condition for a restart.
The user is responsible for deciding whether or not a restart interlock is required.
Cross-circuit detection
T
he dual-channel integration of the sensors requires a detection or the prevention of
cross-circuits between the cables of the sensors to the SICK safety controller. This two
sensors must have separate power supplies and cabling in different rooms.
To protect the sensors from overvoltage, the sensors must be supplied with power via
the Flexi Soft safety controller, see "Wiring notes", page 20.
A corresponding configuration must be carried out in the SICK safety controller logic
program.
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4.6 Testing plan
The manufacturer of the machine and the operating entity must define all required thor‐
ou
gh checks. The definition must be based on the application conditions and the risk
assessment and must be documented in a traceable manner.
b
When defining the thorough check, please note the following:
°
Define the type and execution of the thorough check.
°
Define the frequency of the thorough check.
°
Notify the machine operators of the thorough check and instruct them
accordingly.
•
A thorough check must be carried out during commissioning and following modifi‐
cations, see "Validation", page 26.
•
In many cases, depending on the application conditions, the risk assessment
determines that regular checks are required, see "Recommendations for regular
checks", page 16.see "Recommendations for regular checks", page 16.
4.6.1 Recommendations for regular checks
In many cases, depending on the application conditions, the risk assessment deter‐
mine
s that regular checks are required.
The regular thorough checks serve to investigate the effectiveness of the protective
device and discover defects because of modifications or external influences (such as
damage or tampering).
The definition of the necessary intervals and reasons is dependent on vibrations on the
machine, among other things, which can be transferred onto the sensors.
Possible regular thorough check intervals or reasons:
•
When the batch is changed
•
When the system has been switched off because no object has been detected
(e.g., when the carton magazine is empty)
•
During repair or maintenance breaks
In many cases, it makes sense to carry out the following checks regularly:
•
Thorough visual check of the machine and the protective device, page 16
•
Thorough check of the principal function of the protective device, page 17
•
Inspection of whether the sensors are still in the correct position
•
Check of the relevant validation points, see "Validation", page 26
•
Thorough check of the relevant points on the checklist, see "Checklist for initial
commissioning and commissioning", page 36
If a thorough check discovers a fault, the machine must be shut down immediately. In
this case, the mounting and electrical installation of application package must be
checked by appropriately qualified safety personnel.
4.6.2 Carrying out thorough checks
Thorough visual check of the machine and the protective device
SIC
K recommends the following procedure:
b
Check whether the machine or the protective device has been modified or manipu‐
lated so that the effectiveness of the protective device may be impaired.
b
Check the following points in particular.
°
Has the machine been retrofitted?
°
Have machine parts been removed?
°
Have modifications been made to the surroundings of the machine?
°
Are there any defective cables or open cable ends?
°
Has the protective device been completely or partially dismantled?
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°
Is t
he protective device damaged?
°
Is the protective device severely contaminated?
°
Are the front screens of the sensors contaminated, scratched, or destructed?
°
Has the alignment of the sensors been changed?
°
Are there any objects (e.g., cables, reflective surfaces) in the detection zone?
If one of the points applies, the machine must be shut down immediately. In this case,
the machine and the protective device must be checked by appropriately qualified
safety personnel.
Thorough check of the principal function of the protective device
SIC
K recommends the following procedure:
b
Test the function of the protective device by triggering the protective function and
observing the reaction of the safe outputs using the reaction of the machine, for
example.
°
Move an object into the beam of light of the first sensor so that the beam of
light hits the object at a distance of < 30 mm from the sensor (minimum
sensing range = 30 ). The OSSD switching outputs of the Flexi Soft safety
controller must switch to the safe status and stop the dangerous movement.
°
Remove the material from the maximum sensing range of the sensor
(> 100 mm). The OSSD switching outputs of the Flexi Soft safety controller
must switch to the safe status and stop the dangerous movement.
°
Repeat the thorough checks with the second sensor.
If a thorough check discovers a fault, the machine must be shut down immediately. In
this case, the mounting and electrical installation of application package must be
checked by appropriately qualified safety personnel.
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5 Mounting
5.1 Placing the sensors
Correct distance between the sensors and the material
T
he sensors must be mounted so that the limits of the detection zone – i.e., the values
for the minimum and maximum distance to the object being detected – are complied
with. The minimum distance is 30 mm; the maximum permissible distance is 100 mm.
Sufficient distance between the light points of the sensors
The sensors must detect the material at two different points. Otherwise, reliable detec‐
tion is not possible.
Furthermore, the light points of the two sensors must be far enough from one another
to eliminate the risk of mutual interference between the sensors.
Positioning the sensors in relation to one another
T
he sensors should be positioned at a slight angle to the object being detected (see
figure 5). Otherwise, the beam of light could pass through a gap between the objects
and not be reflected inside the detection zone despite material being present. This can
lead to an unintended shut-down.
Furthermore, the sensors should be mounted at different heights. The paths of the
beams of the sensors must not run parallel to one another. These measures increase
availability because this practically eliminates the risk of mutual interference between
the sensors.
Figure 5: Sensors aligned at an angle to the material
5 MOUN
TING
18
O P E R A T I N G I N S T R U C T I O N S | Safeguard Detector 8019465/120N/2019-09-04 | SICK
Subject to change without notice
Interference of the sensors
DANGER
T
he following types of interference must be ruled out because they could impair the
safety function.
•
Mirrored, reflective, shiny, or transparent surfaces and holograms are not permit‐
ted in the detection zone.
•
No light source and no reflective or retroreflective objects may be located in the
extension of the beam path outside of the detection zone (i.e. behind the object to
be detected). If this condition cannot be ensured, the correct logic of the sensors
must be checked using a suitable test. The detection capability of the protective
device must be ensured.
•
Direct sunlight or very bright sunlight must be prevented from interrupting the
detection zone of the sensors.
•
The sensors must not be illuminated with low-frequency ambient light in the area
around 100 Hz or with high-frequency ambient light in the kHz range.
5.2 Mounting the sensors
b
T
he sensors are mounted using a suitable mounting bracket, see "Ordering infor‐
mation for accessories", page 34.
b
Use self-locking nuts.
b
Do not screw the fixing screws tightly yet because the sensor needs to be
realigned after electrical installation, see "Positioning and aligning the sensors",
page 22.see "Positioning and aligning the sensors", page 22.
b
The maximum permissible tightening torque of the fixing screws is 0.8 Nm.
MOUNTING 5
8019465/120N/2019-09-04 | SICK O P E R A T I N G I N S T R U C T I O N S | Safeguard Detector
19
Subject to change without notice
6 Electrical installation
6.1 Security
DANGER
H
azard due to electrical voltage
Hazard due to unexpected starting of the machine
b
Make sure that the machine is and remains disconnected from the power supply
during the electrical installation.
b
Make sure that the dangerous state of the machine is and remains switched off.
b
Always use a suitable power supply.
b
Make sure that the outputs of the safety controller have no effect on the machine
during electrical installation.
6.2 Wiring notes
Connecting the sensors
T
he sensors must be connected in a voltage-free state (U
v
= 0 V).
+ (L+)
-
(M)
Q
brn
blu
blk
1
3
4
Figure 6: Connection example for the MultiPulse photoelectric proximity sensor
PNP: load => M
Wiring the components
T
he components must be wired as shown in the figure.
Figure 7: Wiring the components
1
Supply voltage
2
Contactor
3
Lamp
4
Example actuator engineering
Power supply and overvoltage protection
T
he SICK safety controller must be supplied by a SELV/PELV power supply unit.
6 ELE
CTRICAL INSTALLATION
20
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SICK Safeguard Detector (Flexi Soft variant) Operating instructions

SICK
Brand
SICK
Model
Safeguard Detector (Flexi Soft variant)
Type
Operating instructions
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