Page is loading ...
OPERATING INSTRUCTIONS
S300
Safety Laser Scanner
GB
Safety Laser Scanner
S300
2 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
This document is protected by the law of copyright, whereby all rights established therein remain with the
company SICK AG. Reproduction of this document or parts of this document is only permissible within the limits of
the legal determination of Copyright Law. Alteration or abridgement of the document is not permitted without the
explicit written approval of the company SICK AG.
Safety Laser Scanner
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 3
Contents
Contents
1 About this document.........................................................................................................7
1
.1 Function of this document....................................................................................7
1.2 Target group ..........................................................................................................7
1.3 Scope .....................................................................................................................7
1.4 Depth of information.............................................................................................8
1.5 Abbreviations.........................................................................................................8
1.6 Symbols used ........................................................................................................9
2 On safety...........................................................................................................................10
2.1 Correct use ..........................................................................................................10
2.2 Specialist personnel............................................................................................10
2.3 Applications of the device...................................................................................10
2.4 General safety notes and protective measures ................................................11
2.5 Environmental protection ...................................................................................13
2.5.1 Disposal .............................................................................................13
2.5.2 Separation of materials ....................................................................13
2.6 Applicable directives and standards..................................................................14
3 Product description.........................................................................................................15
3.1 Device components ............................................................................................15
3.2 Special features ..................................................................................................15
3.2.1 S300 variants....................................................................................16
3.2.2 Possible applications for the S300 variants....................................16
3.3 Function...............................................................................................................17
3.3.1 Principles of operation......................................................................17
3.3.2 Field set comprising of protective field and warning field ..............19
3.3.3 Monitoring cases...............................................................................20
3.4 Applications .........................................................................................................21
3.4.1 Stationary applications .....................................................................21
3.4.2 Mobile applications...........................................................................23
3.5 Configurable functions........................................................................................24
3.5.1 Field sets ...........................................................................................24
3.5.2 Application and resolution................................................................25
3.5.3 Using the contour as a reference.....................................................25
3.5.4 External device monitoring (EDM)....................................................27
3.5.5 Application diagnostic output “Error/contamination”.....................27
3.5.6 Restart ...............................................................................................28
3.5.7 Multiple sampling..............................................................................30
3.5.8 Monitoring cases on the S300 Advanced and Professional...........30
3.5.9 Stand-by mode and park mode........................................................30
3.5.10 Static control inputs on the S300 Advanced and
Professional.......................................................................................31
3.5.11 Dynamic sampling with incremental encoders on the S300
Professional.......................................................................................33
3.5.12 Control input C on the S300 Professional for mobile
applications .......................................................................................33
3.5.13 Checking the monitoring case switching on the S300
Professional.......................................................................................33
3.5.14 Naming applications and laser scanners ........................................34
Safety Laser Scanner
S300
4 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
Contents
3.6 S300 in master/slave operation ....................................................................... 34
3
.6.1 Addressing the slave ........................................................................ 34
3.6.2 Control inputs.................................................................................... 34
3.6.3 Internal or external OSSDs............................................................... 35
3.6.4 Monitoring case switching................................................................ 35
3.7 Indicators and outputs ....................................................................................... 36
3.7.1 LEDs and 7>segment display............................................................36
3.7.2 Outputs.............................................................................................. 36
4 Mounting..........................................................................................................................37
4.1 Stationary application in horizontal operation.................................................. 38
4.1.1 Protective field size........................................................................... 38
4.2 Stationary vertical operation for access protection.......................................... 42
4.2.1 Safety distance ................................................................................. 42
4.3 Stationary vertical operation for hazardous point protection .......................... 44
4.3.1 Safety distance ................................................................................. 44
4.4 Mobile applications ............................................................................................ 45
4.4.1 Protective field length....................................................................... 46
4.4.2 Protective field width........................................................................ 48
4.4.3 Height of the scan plane ..................................................................49
4.5 Methods of preventing unprotected areas........................................................ 50
4.5.1 Near range ........................................................................................ 51
4.6 Time for monitoring case switching...................................................................52
4.7 Mounting steps ................................................................................................... 54
4.7.1 Direct mounting ................................................................................ 55
4.7.2 Mounting with mounting kit 1a or 1b .............................................. 55
4.7.3 Mounting with mounting kit 2 and 3 ............................................... 57
4.7.4 Information label Important information......................................... 57
4.7.5 Using multiple S300 safety laser scanners .................................... 58
5 Electrical installation ..................................................................................................... 60
5.1 System connection ............................................................................................. 60
5.1.1 Pin assignment on the system plug................................................. 61
5.1.2 OSSDs................................................................................................62
5.1.3 Functional earth................................................................................ 62
5.1.4 EFI connection .................................................................................. 62
5.1.5 Incremental encoder specification .................................................. 62
5.2 System plug assembly........................................................................................62
5.3 Pre-assembled system plugs ............................................................................. 64
Safety Laser Scanner
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 5
Contents
6 Application examples and connection diagrams ........................................................66
6.1 Stationary applications .......................................................................................66
6.1.1 Applications with one monitored area (S300 Standard) ................66
6.1.2 Applications with multiple monitored areas
(S300 Advanced) ..............................................................................67
6.2 Mobile applications.............................................................................................67
6
.2.1 Vehicle monitoring for unidirectional travel (S300 Standard)........67
6.2.2 Velocity-dependent vehicle monitoring for unidirectional
travel (S300 Professional)................................................................68
6.2.3 Velocity-dependent vehicle monitoring for bi-directional
travel (2 × S300 Professional in master/slave operation).............68
6.3 Connection diagrams..........................................................................................69
6.3.1 Restart interlock and external device monitoring ...........................69
6.3.2 Protective field switching with a static input pair............................70
6.3.3 Protective field switching with two static input pairs ......................70
6.3.4 Protective field switching with static and dynamic inputs ..............71
6.3.5 Protective field switching between two S300 with dynamic
and static inputs ...............................................................................71
6.3.6 Protective field switching between an S3000 and an S300
with static and dynamic inputs.........................................................72
7 Configuration ...................................................................................................................73
7.1 Default delivery status ........................................................................................73
7.2 Preparation of the configuration ........................................................................73
8 Commissioning ................................................................................................................74
8.1 Initial commissioning ..........................................................................................74
8.1.1 Power up sequence...........................................................................74
8.2 Test notes............................................................................................................75
8.2.1 Pre-commissioning tests...................................................................75
8.2.2 Regular inspection of the protective device by qualified
personnel...........................................................................................76
8.2.3 Daily testing of the protective device by a specialist or
authorised personnel........................................................................76
8.3 Re-commissioning...............................................................................................77
9 Care and maintenance....................................................................................................78
9.1 Cleaning optics cover..........................................................................................78
9.2 Replacing optics cover........................................................................................78
10 Diagnostics ......................................................................................................................80
10.1 In the event of faults or errors............................................................................80
10.2 SICK support........................................................................................................80
10.3 Error and status indications on the LEDs ..........................................................80
10.4 Error and status indications on the 7>segment display ....................................82
10.5 Extended diagnostics..........................................................................................85
Safety Laser Scanner
S300
6 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
Contents
11 Technical specifications ................................................................................................86
11.1 Characteristics ....................................................................................................86
11.2 OSSD response times......................................................................................... 86
11.3 Timing behaviour of the OSSDs ......................................................................... 88
11.4 Data sheet........................................................................................................... 90
11.5 Dimensional drawings ........................................................................................ 98
1
1.5.1 S300.................................................................................................. 98
11.5.2 Mounting kits .................................................................................... 99
11.5.3 Scan plane origin ............................................................................101
12 Ordering information ....................................................................................................102
12.1 Delivery S300 ...................................................................................................102
12.2 Available systems .............................................................................................102
12.3 Accessories/spare parts ..................................................................................102
12.3.1 Mounting kits ..................................................................................102
12.3.2 System plug S300 ..........................................................................103
12.3.3 Service cable...................................................................................103
12.3.4 Self assembly connecting cables ..................................................103
12.3.5 On the documentation....................................................................103
12.3.6 Safety relays....................................................................................104
12.3.7 Safety controllers............................................................................104
12.3.8 Bus nodes .......................................................................................104
12.3.9 Bus node accessories ....................................................................104
12.3.10 Miscellaneous.................................................................................105
13 Annex..............................................................................................................................106
13.1 Declaration of conformity.................................................................................106
13.2 Manufacturer’s checklist .................................................................................107
13.3 Glossary.............................................................................................................108
13.4 List of tables .....................................................................................................109
13.5 List of illustrations ............................................................................................110
Safety Laser Scanner Chapter 1
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 7
About this document
1 About this document
Please read this chapter carefully before working with this documentation and the S300.
1.1 Function of this document
These operating instructions are designed to address the technical personnel of the
machine manufacturer or the machine operator in regards to correct mounting, electrical
installation, commissioning, operation and maintenance of the S300 safety laser scanner.
These operating instructions do not provide instructions for operating the machine, the
system or the vehicle on which the safety laser scanner is, or will be, integrated.
Information on this is to be found in the appropriate operating instructions for the
machine, the system or the vehicle.
1.2 Target group
These operating instructions are addressed to planning engineers, machine designers and
the operators of machines and systems which are to be protected by one or several S300
safety laser scanners. They also address people who integrate the S300 into a machine, a
system or a vehicle, initialise its use, or who are in charge of servicing and maintaining the
device.
1.3 Scope
These operating instructions are applicable to the S300 safety laser scanner with the
following entry on the type label in the field Operating Instructions:
S300 Standard 1026820
S300 Advanced 1026821
S300 Professional 1026822
This document is part of SICK part number 8010946 (operating instructions “S300 —
Safety Laser Scanner” in all available languages).
For the configuration and diagnostics of these devices you require CDS (Configuration &
Diagnostic Software) version 3.2 or higher. To determine the version of your software
version, select the Module-Info... option in the ? menu.
Chapter 1 Safety Laser Scanner
S300
8 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
About this document
1.4 Depth of information
T
hese operating instructions contain information on the S300 safety laser scanner. They
have the following parts:
mounting
electrical installation
commissioning and configuration
care and maintenance
fault, error diagnosis and
troubleshooting
part numbers
accessories
conformity and approval
Planning and using protective devices such as the S300 also require specific technical
skills which are not detailed in this documentation.
General information on accident prevention using opto-electronic protective devices can
be found in the brochure “Safe Machines with opto-electronic protective devices”.
When operating the S300, the national, local and statutory rules and regulations must be
observed.
We also refer you to the SICK AG homepage on the Internet at
www.sick.com
Here you will find information on:
application examples
a list of frequently asked questions regarding the S300
these operating instructions in different languages for viewing and printing
1.5 Abbreviations
Automated Guided Vehicle
American National Standards Institute
American Wire Gauge = standardisation and classification of wires and cables by type,
diameter etc.
SICK Configuration & Diagnostic Software = software for the configuration and diagnostics
of the S300
External device monitoring = e.g. external device monitoring
Enhanced function interface = safe SICK device communication
Electromagnetic compatibility
Electrostatic discharge = electrostatic discharge
Electro-sensitive protective equipment
Fail-safe programmable logic controller
Output signal switching device = signal output of the protective device that is used to stop
the dangerous movement
Robotic Industries Association
Safety Data Link = SICK safety interface (OSSD and EFI)
Note
AGV
ANSI
AWG
CDS
EDM
EFI
EMC
ESD
ESPE
FPLC
OSSD
RIA
SDL
Safety Laser Scanner Chapter 1
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 9
About this document
1.6 Symbols used
R
ecommendations are designed to give you some assistance in your decision-making
process with respect to a certain function or a technical measure.
Refer to notes for special features of the device.
D
isplay indicators show the status of the 7>segment display on the S300:
Constant indication of characters, e.g. 8
Flashing indication of characters, e.g. 8
Alternating indication of characters, e.g. L and 2
LED symbols describe the status of an LED:
The “OSSDs in the OFF state” LED is illuminated continuously.
The “Error/contamination” LED is flashing.
The LED is deactivated.
Instructions for taking action are shown by an arrow. Read carefully and follow the
instructions for action.
Warning!
A warning indicates an actual or potential risk or health hazard. Observation and
implementation of the warning will protect you from accidents.
Read carefully and follow the warning notices!
Information is displayed in the software indicating to you which settings you can make in
the CDS (Configuration & Diagnostic Software).
Recommendation
Note
, ,
Take action …
WARNING
Chapter 2 Safety Laser Scanner
S300
10 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
On safety
2 On safety
This chapter deals with your own safety and the safety of the equipment operators.
Please read this chapter carefully before working with the S300 or with the machine
protected by the S300.
2.1 Correct use
The S300 safety laser scanner must be used only as defined in chapter 2.3 “Applications
of the device” on page 10. It must be used only by qualified personnel on the machine
where it has been installed and initialised by specialist personnel in accordance with these
operating instructions. It is only permitted to be used on machines on which the dangerous
state can be stopped immediately by the S300 and/or it is possible to prevent the
machine being placed in operation.
If the device is used for any other purposes or modified in any way — also during mounting
and installation — any warranty claim against SICK AG shall become void.
2.2 Specialist personnel
The S300 safety laser scanner must be installed, connected, commissioned and serviced
only by specialist personnel. Specialist personnel are defined as persons who
due to their specialist training and experience have adequate knowledge of the power-
driven equipment to be checked
and
who have been instructed by the responsible machine operator in the operation of the
machine and the current valid safety guidelines
and
are sufficiently familiar with the applicable official health and safety regulations,
directives and generally recognized engineering practice (e.g. DIN standards, VDE
stipulations, engineering regulations from other EC member states) that they can assess
the work safety aspects of the power-driven equipment
and
who have access to these operating instructions and who have read them.
As a rule these are specialist personnel from the ESPE manufacturer or also those persons
who have been appropriately trained at the ESPE manufacturer, are primarily involved in
checking ESPE and are allocated the task by the organisation operating the ESPE.
2.3 Applications of the device
The S300 safety laser scanner is used to protect persons and plant. It is intended to be
used to monitor hazardous areas indoors.
It is not allowed to use the S300 outdoors.
The S300 cannot provide protection from parts thrown out of the machine or radiation
emitted.
The S300 complies with the requirements in the standard on the radiated emissions as
defined for class A (industrial application); the S300 is therefore only suitable for use in an
industrial environment.
Note
Safety Laser Scanner Chapter 2
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 11
On safety
The safety level of the S300 corresponds to category 3 in accordance with EN 954>1,
t
ype 3 in accordance with IEC 61496 part 3 as well as SIL2 in accordance with
IEC/EN 61508. The S300 is suitable for:
hazardous area protection
hazardous point protection
access protection
vehicle protection (electrically powered industrial trucks)
Depending on the application, other protective devices and measures may be required in
addition to the safety laser scanner.
2.4 General safety notes and protective measures
Pay attention to the safety notes!
Please observe the following items in order to ensure the correct use of the S300 safety
laser scanner.
DESCRIPTION OF THE LASER WARNING LABEL:
IEC 60825>1:2001. Complies with 21 CFR 1040.10
and 1040.11 except for deviations pursuant to Laser
Notice No. 50, July 2001.
This device meets the norms: CDRH 21 CFR 1040.10 and 1040.11 as well as
IEC 60825>1 edition 1.2:2001>08. There the following note is required: “Caution — if
devices for operation or adjustment different to those given here are used or other
procedures are employed, hazardous exposure to radiation may occur!”
During the mounting, installation and usage of the S300, observe the standards and
directives applicable in your country. You will find an overview of the most important
regulations in section 2.6 “Applicable directives and standards” on page 14.
The national/international rules and regulations apply to the installation, commissioning,
use and periodic technical inspections of the S300 safety laser scanner, in particular …
– Machinery Directive 98/37/EC.
– Work Equipment Directive 89/655/EEC.
– the work safety regulations/safety rules.
– other relevant health and safety regulations.
Manufacturers and operators of the machine on which the S300 is used are responsible
for obtaining and observing all applicable safety regulations and rules.
The notes, in particular the test notes (see chapter 8 “Commissioning” on page 74) in
these operating instructions (e.g. on use, mounting, installation or integration into the
machine controller) must be observed.
Note
WARNING
Chapter 2 Safety Laser Scanner
S300
12 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
On safety
Changes to the configuration of the devices can degrade the protective function. After
e
very change to the configuration you must therefore check the effectiveness of the
protective device. The person who makes the change is also responsible for the correct
protective function of the device. When making configuration changes, please always
use the password hierarchy provided by SICK to ensure that only authorised persons
make changes to the configuration. The SICK service team is available to provide
assistance if required.
The tests must be carried out by specialist personnel or specially qualified and
authorised personnel and must be recorded and documented to ensure that the tests
can be reconstructed and retraced at any time.
The operating instructions must be made available to the operator of the machine where
the S300 is used. The machine operator is to be instructed in the use of the device by
specialist personnel and must be instructed to read the operating instructions.
The external voltage supply of the devices must be capable of buffering brief mains
voltage failures of 20 ms as specified in EN 60204. Suitable power supplies are
available as accessories from SICK (see section 12.3 “Accessories/spare parts” on
page 105).
Enclosed with these operating instructions is a checklist for checking by the
manufacturer and OEM (see section 13.2 “Manufacturer’s checklist” on page 107). Use
this checklist when checking the plant that is protected with the S300.
The term “dangerous state”
The dangerous state (standard term) of the machine is always shown in the drawings and
diagrams of this document as a movement of a machine part. In practical operation, there
may be other dangerous states:
machine movements
vehicle movements
electrical conductors
visible or invisible radiation
a combination of several risks and hazards
Safety Laser Scanner Chapter 2
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 13
On safety
2.5 Environmental protection
T
he S300 safety laser scanner is constructed in such a way that it adversely affects the
environment as little as possible and uses only a minimum of power and natural
resources.
At work, always act in an environmentally responsible manner.
2.5.1 Disposal
Unusable or irreparable devices should always be disposed as per the applicable national
regulations on waste disposal (e.g. European waste code 16 02 14).
We would be pleased to be of assistance on the disposal of this device. Contact your
local SICK representative.
Information on the individual materials in the S300 is given in chapter 11 “Technical
specifications” on page 90.
2.5.2 Separation of materials
Only appropriately trained personnel are allowed to separate materials!
Caution is required when dismantling devices. There is a risk of injuries.
Before you send the devices for appropriate recycling, it is necessary to separate the
different materials in the S300.
Separate the housing from the rest of the parts (in particular the circuit boards).
Send the separated parts for recycling as appropriate (see Tab. 1).
Components Disposal
Product
Housing Metal recycling (aluminium)
Motor bracket Metal recycling (zinc die-cast housing)
Optics cover Plastic recycling
Circuit boards, cables, connectors and
electrical connecting pieces
Electronic recycling
Packaging
Cardboard, paper Paper/cardboard recycling
Polyethylene packaging Plastic recycling
Notes
WARNING
Tab.
1
:
Overview on disposal
by components
Chapter 2 Safety Laser Scanner
S300
14 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
On safety
2.6 Applicable directives and standards
The most important directives and standards, valid for the use of opto-electronic protective
devices in Europe, are listed below. Further regulations may be of importance to you,
depending on the application. You can obtain further information of machine-specific
standards from national institutions (e.g. DIN, BSI, AFNOR etc.), the authorities or your
trade association.
If you operate the machine or vehicle in a country outside the European Union, please
contact the manufacturer of the plant and the local authorities and obtain information on
the regulations and standards applicable there.
Application and installation of protective devices
Machinery Directive 98/37/EC, e.g.:
Safety of machinery — Basic concepts, general principles for design (EN 12100)
Industrial automation systems — Safety of integrated manufacturing systems —- Basic
requirements (ISO 11161)
Safety of machinery — Electrical equipment of machines — Part 1: General requirements
(IEC/EN 60204)
Safety of machinery. Safety distances to prevent hazardous points being reached by the
upper limbs (EN 294, IEC 13852)
Safety requirements for robots (EN 775, ISO 10218)
Safety of industrial trucks. Driverless trucks and their systems (DIN/EN 1525)
Safety of machinery — The positioning of protective equipment in respect of approach
speeds of parts of the human body (EN 999, ISO 13 855)
Safety of machinery — Principles for risk assessment (EN 1050, ISO 14121)
Safety of machinery — Safety-related parts of control systems — Part 1: General
principles for design (EN 954 part 1, ISO 13849 part 2)
Safety of machines — electro-sensitive protective equipment — part 1: General
requirements (IEC/EN 61496>1) as well as part 3: Special requirements for AOPDDR
(IEC 61496>3)
Safety of machinery — Application of protective equipment to detect the presence of
persons (IEC/TS 62046)
Foreign standards, for example:
Performance Criteria for Safeguarding (ANSI B11.19)
Machine tools for manufacturing systems/cells (ANSI B11.20)
Safety requirements for Industrial Robots and Robot Systems (ANSI/RIA R15.06)
Safety Standard for guided industrial vehicles and automated functions of named
industrial vehicles (ANSI B56.5)
To some extent these standards require the protective device to have the safety level
“Control reliable”. The S300 safety laser scanner meets this requirement.
Please request our brochure on this subject “Safe Machines with opto-electronic protective
devices”.
Note
Recommendation
Safety Laser Scanner Chapter 3
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 15
Product description
3 Product description
This chapter provides information on the special features and properties of the S300
safety laser scanner. It describes the construction and the operating principle of the
device.
Please read this chapter before mounting, installing and commissioning the device.
3.1 Device components
The S300 safety laser scanner comprises three components:
the sensor with the opto-electronic acquisition system, the LEDs and the 7>segment
display
the optics cover with the window for the light output
the system plug with the configuration memory (the system plug contains all electrical
connections)
3.2 Special features
270° scanning angle
the surrounding contour can be monitored (contour change can e.g. be the opening of a
door to the outside)
integrated external device monitoring (EDM)
integrated restart interlock/restart interlock delay for which the parameters can be set
status display with LEDs and 7>segment display
minimum response time 80 ms
configuration using PC or notebook with SICK Configuration & Diagnostic Software
configuration memory in the system plug. In case of device replacement, the existing
configuration is automatically transferred to the S300 newly connected. In this way
downtimes can be significantly reduced.
increased resilience to external light and dust due to highly effective dazzle and particle
algorithms
Fig.
1
:
Device components
Optics cover
System plug
Sensor
LEDs and 7$segment
display
Window for light
output
Chapter 3 Safety Laser Scanner
S300
16 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
Product description
3.2.1 S300 variants
To cover different applications, three S300 variants are available.
Functions
Standard
Advanced
Professional
Protective field range [m] 2 2 2
warning field width
1)
[m] 888
Object resolution [mm] 30/40/
50/70
30/40/
50/70
30/40/
50/70
Switchable field sets 124
Programmable monitoring cases
2)
124
Pairs of output signal switching devices (OSSDs) 111
Source switching current of the OSSDs [mA] 250 250 250
Application diagnostic output “Warning field
interrupted”
Application diagnostic output
“error/contamination”
Application diagnostic output “Reset required”
External device monitoring (EDM)
Restart interlock/delay
Control inputs for switching between the
monitoring cases.
On the S300 Professional the inputs A and B can
be used as static (complementary or 1>of>n) and
as dynamic control inputs for incremental
encoders.
12
3)
Stand-by mode
EFI interface (safe SICK device communication)
configuration memory in the system plug
Data interface RS>422
3.2.2 Possible applications for the S300 variants
Typical application Functionality required Necessary variant
Protection of a robot cell One field set S300 Standard
Protection of an
insertion station
Up to two switchable field sets S300 Advanced
Freely moving vehicle Up to four switchable field sets S300 Professional
1)
Warning field range with a reflectivity of 30% (see Fig. 64 “Diagram of scanning ranges for various
reflectances” on page 86).
2)
If the S300 Advanced or Professional is used in a master/slave system as a slave, the number of monitoring
cases depends on the master connected (There can be up to 16 monitoring cases, the max. number of field
sets for the S300 remains unchanged).
3)
The application diagnostic output “Reset required” and the “Reset” input can also be configured as an
additional control input C.
Tab.
2
:
Functions of the
S300 variants
Tab.
3
:
Possible applications
for the S300 variants
Safety Laser Scanner Chapter 3
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 17
Product description
3.3 Function
T
he S300 safety laser scanner operates correctly as a protective device only if the
following conditions are met:
The control of the machine, system or vehicle must be electrical.
After integration in the control it must be possible to transfer the dangerous machine,
system or vehicle state to a safe state using the OSSDs on the S300 at any time, i.e.
before a person has reached the hazardous point or hazardous area.
The S300 must be mounted and configured such that it detects objects as they enter
the hazardous area (see chapter 4 “Mounting” on page 37 and chapter 8
“Commissioning” on page 74).
3.3.1 Principles of operation
The S300 is an optical sensor that scans its surroundings in two dimensions using infrared
laser beams. It is used to monitor hazardous areas on machines or vehicles.
The S300 works on the principle of time of flight measurement. It sends out very short
pulses of light (S). At the same time an “electronic stopwatch” is started. When the light is
incident on an object, it is reflected and received by the safety laser scanner (E). From the
time between sending and reception (t) the S300 calculates the distance to the object.
Fig.
2
:
Principle of operation,
time of flight measurement
by the S300
t
S
Receive pulse
Send pulse
S300
E
Chapter 3 Safety Laser Scanner
S300
18 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
Product description
In the S300 there is also a mirror rotating at constant speed that deflects the light pulses
such that they cover an arc of 270° . In this way an object can be detected in the
protective field within 270°.
The S300 sends a pulse of light with an angular resolution of 0.5°. In this way resolutions
from 30 to 70 mm can be achieved independent of the length of the protective field !
Due to its active scanning principle, the S300 does not require receivers or reflectors. This
has the following advantages:
Your installation effort is lower.
You can easily adapt the monitored area to the hazardous area on a machine.
In comparison with contact sensors, electro-sensitive scanning is nearly wear-free.
Fig.
3
:
Principle of operation,
rotation of the S300
Safety Laser Scanner Chapter 3
S300
8010948/24-12-05 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 19
Product description
3.3.2 Field set comprising of protective field and warning field
The S300 protects the hazardous area on a machine or a vehicle using the protective
field . As soon as the safety laser scanner detects an object in the protective field, it
switches the OSSDs to the OFF state and thus initiates the shutdown of the machine or
stop of the vehicle.
You can define the warning field such that the safety laser scanner detects an object
before the actual hazardous area and e.g. triggers a warning signal.
The maximum distance at which the safety laser scanner can detect an object is defined
by the distance measuring range .
Protective field and warning field form a pair, the so-called field set. Depending on the
variant used (see section “S300 variants” on page 16), you can define up to four field sets
and save these in the safety laser scanner. In this way you can switch the S300 Advanced
and S300 Professional safety laser scanners to a different field set in case of a change in
the monitoring situation (see section 3.3.3 “Monitoring cases” on page 20).
You can configure and transfer these field sets to the with the aid of the CDS S300. If the
hazardous area to be monitored changes, then you can re-configure the S300 in software
without additional mounting effort.
Fig.
4
:
Protective field,
warning field and distance
measuring range
Chapter 3 Safety Laser Scanner
S300
20 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 8010948/24-12-05
Product description
3.3.3 Monitoring cases
Depending on the variant used (see section “S300 variants” on page 16) up to four
monitoring cases can be defined and selected during operation using static or dynamic
control inputs. In this way, for instance, it is possible to monitor vehicles as a function of
the velocity.
With the aid of a monitoring case you can define for a field set …
the field conditions (control signals) for switching to the related field set.
which multiple sampling is used for the field set.
Fig.
5
:
S300
with two
monitoring cases on an AGV
Field set 2
Field set 1
Monitoring case 2
high velocity
Monitoring case 1
low velocity
/
