Leuze RSL 420P User manual

We reserve the right to make technical changes
EN • 2020-08-18 • 50137662
Original operating instructions
RSL 420P
Safety Laser Scanner with PROFIsafe Interface

© 2020
Leuze electronic GmbH + Co. KG
In der Braike 1
73277 Owen / Germany
Phone: [phone]
Fax: [phone]
www.leuze.com
[email protected]
Leuze electronic GmbH + Co. KG RSL 420P 2

Table of contents
Leuze electronic GmbH + Co. KG RSL 420P 3
Table of contents
1 About this document ............................................................................................7
1.1 Other applicable documents ................................................................................................... 7
1.2 Downloading configuration software from the Internet ........................................................... 7
1.3 Used symbols and signal words ............................................................................................. 7
1.4 Checklists................................................................................................................................ 8
2 Safety .....................................................................................................................9
2.1 Intended use ........................................................................................................................... 9
2.1.1 Vapors, smoke, dust, particles ..........................................................................................10
2.1.2 Stray light ..........................................................................................................................10
2.1.3 Obstructions in the protective field ....................................................................................10
2.2 Foreseeable misuse ............................................................................................................. 11
2.3 Competent persons .............................................................................................................. 11
2.4 Disclaimer ............................................................................................................................. 12
2.5 Laser safety notices – Laser class1 for wavelength range outside 400-700 nm ............... 12
2.6 Responsibility for safety........................................................................................................12
3 Device description ..............................................................................................13
3.1 Device overview....................................................................................................................14
3.1.1 Protective function of RSL400 safety sensors..................................................................14
3.1.2 Device and monitoring functions .......................................................................................15
3.2 USB connection .................................................................................................................... 15
3.3 Connection units ................................................................................................................... 15
3.4 Display elements .................................................................................................................. 17
3.4.1 RSL 400 LED indicator......................................................................................................17
3.4.2 LED indicator of PROFINET connection unit ....................................................................19
3.4.3 Alphanumerical display .....................................................................................................20
3.4.4 Field-of-view display..........................................................................................................22
3.5 Mounting system (optional)................................................................................................... 22
3.6 Loop guard (optional)............................................................................................................ 22
4 Configuration and diagnostic software SensorStudio...................................23
4.1 System requirements............................................................................................................23
4.2 Installing software ................................................................................................................. 23
4.3 User interface........................................................................................................................ 25
4.4 FDT frame menu................................................................................................................... 26
4.4.1 Project wizard....................................................................................................................26
4.4.2 DTM change......................................................................................................................27
4.4.3 User management.............................................................................................................27
4.4.4 Exiting SensorStudio ........................................................................................................27
4.5 Using configuration projects ................................................................................................. 28
4.5.1 Selecting access level .......................................................................................................30
4.5.2 IDENTIFICATION..............................................................................................................30
4.5.3 PROCESS.........................................................................................................................30
4.5.4 CONFIGURATION ............................................................................................................30
4.5.5 DIAGNOSIS ......................................................................................................................31
4.5.6 SETTINGS ........................................................................................................................31

Table of contents
Leuze electronic GmbH + Co. KG RSL 420P 4
5 Functions.............................................................................................................34
5.1 Authorization concept of safety sensor.................................................................................34
5.2 Function modes of safety sensor..........................................................................................35
5.2.1 One protective function .....................................................................................................36
5.3 Selectable resolution for hand, leg and body detection ........................................................ 36
5.4 Speed-dependent protective function for vehicles................................................................36
5.5 Response time......................................................................................................................36
5.6 Configurable start-up behavior ............................................................................................. 37
5.6.1 Automatic start/restart .......................................................................................................37
5.6.2 Start interlock/automatic restart.........................................................................................37
5.6.3 Start/restart interlock (RES) ..............................................................................................38
5.7 Field pair changeover ........................................................................................................... 38
5.7.1 Fixed selection of one field pair.........................................................................................39
5.7.2 Changeover of five field pairs in changeover mode Overlapped monitoring..................... 39
5.7.3 Changeover of ten field pairs in changeover mode Fixed changeover moment ...............40
5.8 Monitoring of field pair changeover....................................................................................... 42
5.9 Reference contour monitoring .............................................................................................. 42
5.10 Field pair monitoring ............................................................................................................. 42
5.11 Signaling functions................................................................................................................ 42
6 Applications ........................................................................................................43
6.1 Stationary danger zone guarding.......................................................................................... 43
6.2 Stationary point of operation guarding.................................................................................. 43
6.3 Mobile danger zone guarding ............................................................................................... 44
6.4 Danger zone safeguarding on side-tracking skates.............................................................. 46
7 Mounting..............................................................................................................47
7.1 Basic infos............................................................................................................................. 47
7.1.1 Calculation of safety distanceS ........................................................................................47
7.1.2 Suitable mounting locations ..............................................................................................48
7.1.3 Mounting the safety sensor ...............................................................................................48
7.1.4 Mounting examples ...........................................................................................................51
7.1.5 Information on protective field dimensioning .....................................................................53
7.2 Stationary danger zone guarding.......................................................................................... 56
7.3 Stationary point of operation guarding.................................................................................. 59
7.4 Mobile danger zone guarding on AGVs................................................................................ 60
7.4.1 Minimum distanceD..........................................................................................................61
7.4.2 Protective field dimensions................................................................................................62
7.5 Mobile side guarding on AGVs ............................................................................................. 63
7.6 Mounting accessories ........................................................................................................... 63
7.6.1 Mounting system ...............................................................................................................63
7.6.2 Loop guard ........................................................................................................................64
8 Electrical connection..........................................................................................65
8.1 Electrical supply.................................................................................................................... 66
8.2 Interfaces .............................................................................................................................. 66
8.3 Connection unit CU400P-3M12 ............................................................................................ 66
8.4 Connection unit CU400P-4M12 ............................................................................................ 68
8.5 Connection unit CU400P-AIDA............................................................................................. 69
8.6 Connection unit CU400P-AIDA-OF ...................................................................................... 71
8.7 Cable lengths according to the operating voltage................................................................. 73

Table of contents
Leuze electronic GmbH + Co. KG RSL 420P 5
9 Configuring the safety sensor ...........................................................................74
9.1 Defining safety configuration ................................................................................................ 74
9.2 Connecting safety sensor to PC ........................................................................................... 76
9.2.1 Connection via Ethernet cable ..........................................................................................76
9.2.2 Connection via Bluetooth ..................................................................................................76
9.2.3 Connection via USB ..........................................................................................................76
9.2.4 Communication between safety sensor and PC ...............................................................77
9.3 Determine the configuration project...................................................................................... 78
9.4 Configuring protective function ............................................................................................. 79
9.4.1 Creating simple safety configuration .................................................................................79
9.4.2 Entering administration parameters ..................................................................................79
9.4.3 Activate protective function ...............................................................................................79
9.4.4 Creating and configuring protective/warning field pairs.....................................................80
9.4.5 Configuring field pair monitoring........................................................................................82
9.5 Defining permissible field pair changeovers ......................................................................... 82
9.6 Saving configuration ............................................................................................................. 82
9.7 Transferring configuration project to safety sensor............................................................... 83
9.8 Selecting access level .......................................................................................................... 85
9.9 Reset safety configuration .................................................................................................... 85
10 Starting up the device ........................................................................................86
10.1 Switching on ......................................................................................................................... 86
10.2 Aligning the safety sensor..................................................................................................... 86
10.3 Unlocking start/restart interlock ............................................................................................ 86
10.4 Shutting down ....................................................................................................................... 87
10.5 Restarting.............................................................................................................................. 87
10.6 Starting up replacement scanner unit ................................................................................... 87
11 PROFIsafe and PROFINET .................................................................................89
11.1 Overview ............................................................................................................................... 89
11.2 GSDML file............................................................................................................................ 90
11.3 Integrating in a PROFIsafe network...................................................................................... 92
11.3.1 Network topology...............................................................................................................92
11.3.2 Addressing ........................................................................................................................92
11.3.3 Configuring the PROFINET control ...................................................................................92
11.4 Configuring for the Siemens TIA Portal ................................................................................ 93
11.4.1 Start RSL400 PROFIsafe .................................................................................................93
11.4.2 Prepare the control............................................................................................................93
11.4.3 Install the GSDML file........................................................................................................94
11.4.4 Start TIA Portal..................................................................................................................95
11.4.5 Load the device description file (GSDML file) ...................................................................96
11.4.6 Integrate the RSL400P in the project ...............................................................................96
11.4.7 Connect the RSL400P to the control................................................................................ 97
11.4.8 Add safety module.............................................................................................................98
11.4.9 Configure RSL400P header module .................................................................................99
11.4.10 Configure the safety module ...........................................................................................100
11.4.11 Conclude configuration....................................................................................................101

Table of contents
Leuze electronic GmbH + Co. KG RSL 420P 6
11.5 PROFINET project modules ............................................................................................... 101
11.5.1 Project modules for DAP1 ..............................................................................................101
11.5.2 Project modules for DAP2 ..............................................................................................103
11.5.3 Module [M1] ‑ SAFE_SIGNAL.........................................................................................105
11.5.4 Module [M2] ‑ SYSTEM_STATUS ..................................................................................110
11.5.5 Module [M3] – SCAN_NUMBER .....................................................................................111
11.5.6 Module [M4] – REFLECTOR_STATUS...........................................................................111
11.5.7 Module [M5] – PROTECTIVE_FUNCTION_A_STATUS ................................................111
11.5.8 Module [M6] – PROTECTIVE_FUNCTION_B_STATUS ................................................113
11.5.9 Module [M7] – PROTECTIVE_FUNCTION_A_VIOLATION ...........................................114
11.5.10 Module [M8] – PROTECTIVE_FUNCTION_B_VIOLATION ...........................................115
11.5.11 Module [M11] ‑ SAFE_SIGNAL_PS2V4..........................................................................115
11.5.12 Module [M11] ‑ SAFE_SIGNAL_PS2V6..........................................................................121
11.5.13 Module [M12] ‑ SYSTEM_STATUS ................................................................................127
11.5.14 Module [M13] – SYSTEM_DATA ....................................................................................129
11.5.15 Module [M14] – PROTECTIVE_FUNCTION_A_STATUS ..............................................129
11.5.16 Module [M15] – PROTECTIVE_FUNCTION_B_STATUS ..............................................131
11.5.17 Module [M16] – PROTECTIVE_FUNCTION_A_VIOLATION .........................................132
11.5.18 Module [M17] – PROTECTIVE_FUNCTION_B_VIOLATION .........................................133
11.6 Status messages of the PROFINET stack.......................................................................... 134
12 Testing ...............................................................................................................135
12.1 Before the initial start-up and following modifications......................................................... 135
12.1.1 Checklist for integrator – to be performed prior to the initial start-up and following
modifications ...................................................................................................................135
12.2 To be performed periodically by competent persons.......................................................... 137
12.3 Periodically by the operator ................................................................................................ 137
12.3.1 Checklist – periodically by the operator...........................................................................138
13 Diagnosis and troubleshooting .......................................................................139
13.1 What to do in case of failure? ............................................................................................. 139
13.2 Diagnostics displays ........................................................................................................... 139
14 Care, maintenance and disposal .....................................................................144
14.1 Changing scanner unit........................................................................................................ 144
14.2 Cleaning the optics cover ................................................................................................... 145
14.3 Servicing ............................................................................................................................. 146
14.4 Disposing ............................................................................................................................ 146
15 Service and support .........................................................................................147
16 Technical data ...................................................................................................148
16.1 General specifications ........................................................................................................ 148
16.2 Dimensions ......................................................................................................................... 152
16.3 Dimensioned drawings: Accessories .................................................................................. 154
16.4 PROFIsafe status profile..................................................................................................... 161
16.4.1 Project modules for DAP1 ..............................................................................................161
16.4.2 Project modules for DAP2 ..............................................................................................163
17 Standards and legal regulations .....................................................................165
18 Order guide and accessories...........................................................................166
19 EC Declaration of Conformity..........................................................................169

About this document
Leuze electronic GmbH + Co. KG RSL 420P 7
1 About this document
1.1 Other applicable documents
The information on the safety sensor is distributed over several documents to make working with the docu-
ments easier. You will find the documents and software for the safety sensor in the following table:
Purpose and target group of the document Document/software ti-
tle
Source
Software for users of the machine a) for safety sen-
sor diagnostics if a fault occurs and for machine de-
sign engineers for configuring the safety sensor
SensorStudio
DTM RSL400
Supplied with the safety
sensor on data carrier
Notes for the machine design engineer a) "Safe implementation
and operation"
(this document)
PDF, supplied with the
safety sensor on data
carrier
Notes for the machine design engineer a) for config-
uring the safety sensor (software instructions)
Online help for software Supplied with the safety
sensor on data carrier
Notices regarding mounting, alignment and connec-
tion of the safety sensor
"Quick Start Guide
RSL400"
Print document, supplied
with the safety sensor
a) Machine identifies the product that the safety sensor is installed in.
1.2 Downloading configuration software from the Internet
ÄCall up the Leuze home page: www.leuze.com.
ÄEnter the type designation or part number of the device as the search term.
ÄThe configuration software can be found on the product page for the device under the Downloads tab.
1.3 Used symbols and signal words
Tab.1.1: Warning symbols and signal words
Symbol indicating dangers to persons
Symbol indicating dangers from harmful laser radiation
Symbol indicating possible property damage
NOTE Signal word for property damage
Indicates dangers that may result in property damage if the measures for dan-
ger avoidance are not followed.
CAUTION Signal word for minor injuries
Indicates dangers that may result in minor injury if the measures for danger
avoidance are not followed.
WARNING Signal word for serious injury
Indicates dangers that may result in severe or fatal injury if the measures for
danger avoidance are not followed.
DANGER Signal word for life-threatening danger
Indicates dangers with which serious or fatal injury is imminent if the measures
for danger avoidance are not followed.

About this document
Leuze electronic GmbH + Co. KG RSL 420P 8
Tab.1.2: Other symbols
Symbol for tips
Text passages with this symbol provide you with further information.
Symbol for action steps
Text passages with this symbol instruct you to perform actions.
Symbol for action results
Text passages with this symbol describe the result of the preceding action.
Tab.1.3: Terms and abbreviations
CS Switching signal from a control
(Controller Signal)
DAP Device Access Point
DTM Software device manager of the safety sensor
(Device Type Manager)
FDT Software frame for management of device managers (DTM)
(Field Device Tool)
Field pair A protective field with an associated warning field
AGV Automated Guided Vehicle
GSDML Description file of the RSL400 PROFIsafe for integration in the control
Generic Station Description Markup Language
LED LED, display element in the safety sensor
(Light Emitting Diode)
OSSD Safety switching signal or safety-related switching output
(Output Signal Switching Device)
PFHdProbability of a dangerous failure per hour
(Probability of dangerous Failure per Hour)
PL Performance Level
Quad Two field pairs (four fields) that are monitored simultaneously in four field mode
TSS Transverse Side-tracking Skate
RES Start/restart interlock
(Start/REStart interlock)
SIL Safety Integrity Level
State ON: device intact, safety-related switching signals switched on
OFF: device intact, safety-related switching signals switched off
Locking: device, connection or actuation/operation faulty, safety-related switch-
ing signals switched off (lock-out)
1.4 Checklists
The checklists serve as a reference for the machine manufacturer or supplier (see chapter 12 "Testing").
They replace neither testing of the complete machine or system prior to the initial start-up nor their periodic
testing by a competent person. The checklists contain minimum testing requirements. Depending on the
application, other tests may be necessary.

Safety
Leuze electronic GmbH + Co. KG RSL 420P 9
2 Safety
Before using the safety sensor, a risk assessment must be performed according to valid standards (e.g.
ENISO12100, ENISO13849-1, IEC61508, ENIEC62061). The result of the risk assessment determines
the required safety level of the safety sensor (see chapter 16.1 "Safety-relevant technical data"). For
mounting, operating and testing, this document as well as all applicable national and international stan-
dards, regulations, rules and directives must be observed. Relevant and supplied documents must be ob-
served, printed out and handed to affected persons.
ÄBefore working with the safety sensor, completely read and observe the documents applicable to your
task.
In particular, the current version of the following national and international legal regulations apply for com-
missioning, technical tests and handling of safety sensors:
• Machinery Directive
• Low Voltage Directive
• Electromagnetic Compatibility Directive
• Use of Work Equipment Directive
• Directive on the restriction of the use of certain hazardous substances in electrical and electronic equip-
ment
• OSHA
• Safety regulations
• Accident-prevention regulations and safety rules
• Ordinance on Industrial Safety and Health and employment protection act
• Product Safety Law (ProdSG)
NOTICE
For safety-related information you may also contact local authorities (e.g., industrial inspec-
torate, employer's liability insurance association, labor inspectorate, occupational safety and
health authority).
2.1 Intended use
The safety sensor protects persons or body parts at points of operation, danger zones or access points of
machines and systems.
WARNING
A running machine may result in serious injury!
ÄMake certain that the safety sensor is correctly connected and that the protective function of
the protective device is ensured.
ÄMake certain that, during all conversions, maintenance work and inspections, the system is
securely shut down and protected against being restarted.
• The safety sensor may only be used after it has been selected in accordance with the respectively ap-
plicable instructions and relevant standards, rules and regulations regarding labor protection and safety
at work, and after it has been installed on the machine, connected, commissioned, and checked by a
competent person (see chapter 2.3 "Competent persons").
• When selecting the safety sensor it must be ensured that its safety-related capability meets or exceeds
the required Performance Level PLr ascertained in the risk assessment (see chapter 16.1 "Safety-rele-
vant technical data").
• The safety sensor may only be used in North America in applications that satisfy the requirements
specified by NFPA79.
• With the “access guarding” function, the safety sensor detects persons only when they enter the danger
zone but cannot tell whether there are any persons inside the danger zone. For this reason, a start/
restart interlock in the safety chain is essential in this case.
• The construction of the safety sensor must not be altered. When manipulating the safety sensor, the
protective function is no longer guaranteed. Manipulating the safety sensor also voids all warranty
claims against the manufacturer of the safety sensor.

Safety
Leuze electronic GmbH + Co. KG RSL 420P 10
• The safety sensor must be inspected regularly by a competent person to ensure proper integration and
mounting (see chapter 16.1 "Safety-relevant technical data").
• The safety sensor must be exchanged after a maximum of 20 years. Repairs or the exchange of wear
parts do not extend the mission time.
CAUTION
Observe intended use!
The protection of personnel and the device cannot be guaranteed if the device is operated in a
manner not complying with its intended use.
ÄOnly operate the device in accordance with its intended use.
ÄLeuzeelectronicGmbH+Co.KG is not liable for damages caused by improper use.
ÄRead these operating instructions before commissioning the device. Knowledge of the oper-
ating instructions is an element of proper use.
NOTICE
Comply with conditions and regulations!
ÄObserve the locally applicable legal regulations and the rules of the employer's liability insur-
ance association.
2.1.1 Vapors, smoke, dust, particles
Vapors, smoke, dust and all particles visible in the air can cause the machine to switch off unintentionally.
This can mislead the user into bypassing the safety devices.
ÄDo not use the safety sensor in environments in which heavy vapors, smoke, dust or other visible parti-
cles occur at the beam level.
2.1.2 Stray light
Light sources can impair the safety sensor's availability. Interfering light sources are:
• Infrared light
• Fluorescent light
• Strobe light
ÄEnsure that there are no interfering light sources at beam level.
ÄPrevent reflective surfaces at beam level.
ÄWhere applicable, take protective field addition distances into account.
ÄImplement all additional measures to ensure that any special application of any effected beam types
does not impair the safety sensor's operation.
2.1.3 Obstructions in the protective field
ÄDo not bring any additional window materials into the area monitored by the safety sensor.
NOTICE
No screen between optics cover and monitoring area!
ÄBetween the optics cover of the safety sensor and the monitored area, no further screen
may be mounted to protect the safety sensor.

Safety
Leuze electronic GmbH + Co. KG RSL 420P 11
2.2 Foreseeable misuse
Any use other than that defined under "Intended use" or which goes beyond that use is considered im-
proper use.
In principle, the safety sensor is not suitable as a protective device for use in the following cases:
• Danger posed by ejected objects or the spraying of hot or hazardous liquids from within the danger
zone.
• Applications in explosive or easily flammable atmospheres.
• Use for outdoor applications or under extreme temperature fluctuations.
Humidity, condensation and other weather influences can impair the protective function.
• Use on vehicles with combustion engines.
Alternators and ignition systems can cause EMC interferences.
NOTICE
Do not modify or otherwise interfere with the safety sensor!
ÄDo not carry out modifications or otherwise interfere with the safety sensor. The safety sen-
sor must not be tampered with and must not be changed in any way.
ÄThe safety sensor must not be opened. There are no user-serviceable parts inside.
ÄThe construction of the safety sensor must not be altered. When manipulating the safety
sensor, the protective function is no longer guaranteed.
ÄManipulating the safety sensor voids all warranty claims against the manufacturer of the
safety sensor.
ÄRepairs must only be performed by Leuze electronic GmbH + Co. KG.
2.3 Competent persons
Connecting, mounting, commissioning and adjustment of the safety sensor must only be carried out by
competent persons.
Prerequisites for competent persons:
• They have a suitable technical education.
• They know the rules and regulations for labor protection, safety at work and safety technology and can
assess the safety of the machine.
• They know the operating instructions for the safety sensor and the machine.
• They have been instructed by the responsible person on the mounting and operation of the machine
and of the safety sensor.
• They perform a task related to the subject matter shortly thereafter and keep their knowledge up to date
through continuous further training.
Certified electricians
Electrical work must be carried out by a certified electrician.
Due to their technical training, knowledge and experience as well as their familiarity with relevant standards
and regulations, certified electricians are able to perform work on electrical systems and independently de-
tect possible dangers.
In Germany, certified electricians must fulfill the requirements of accident-prevention regulations DGUV
(German Social Accident Insurance) provision 3 (e.g. electrician foreman). In other countries, there are re-
spective regulations that must be observed.

Safety
Leuze electronic GmbH + Co. KG RSL 420P 12
2.4 Disclaimer
LeuzeelectronicGmbH+Co.KG is not liable in the following cases:
• The safety sensor is not used as intended.
• Safety notices are not adhered to.
• Reasonably foreseeable misuse is not taken into account.
• Mounting and electrical connection are not properly performed.
• Proper function is not tested (see chapter 12 "Testing").
• Changes (e.g., constructional) are made to the safety sensor.
2.5 Laser safety notices – Laser class1 for wavelength range outside 400-700 nm
NOTICE
Additional measures for shielding the laser radiation are not necessary (safe for eyes).
ATTENTION
LASER RADIATION – CLASS 1 LASER PRODUCT
The device satisfies the requirements of IEC/EN 60825-1:2014 safety regulations for a product
of laser class1 and complies with 21 CFR 1040.10 except for conformance with IEC 60825-1
Ed. 3., as described in Laser Notice No. 56, dated May 8, 2019.
ÄObserve the applicable statutory and local laser protection regulations.
ÄThe device must not be tampered with and must not be changed in any way.
There are no user-serviceable parts inside the device.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.
2.6 Responsibility for safety
Manufacturer and operator must ensure that the machine and implemented safety sensor function properly
and that all affected persons are adequately informed and trained.
The type and content of all imparted information must not lead to unsafe actions by users.
The manufacturer of the machine is responsible for:
• Safe machine construction and information on any residual risks
• Safe implementation of the safety sensor, verified by the initial test performed by a competent person
• Imparting all relevant information to the operating company
• Adhering to all regulations and directives for the safe commissioning of the machine
The operator of the machine is responsible for:
• Instructing the operator
• Maintaining the safe operation of the machine
• Adhering to all regulations and directives for labor protection and safety at work
• Regular testing by competent persons

Device description
Leuze electronic GmbH + Co. KG RSL 420P 13
3 Device description
The safety sensors from the RSL400 series are optoelectronic, two-dimensional measuring safety laser
scanners. They satisfy the following standards:
RSL400
Type in accordance with IEC61496 3
Category in accordance with ISO13849 3
Safety Integrity Level (SIL) in accordance with IEC61508 2
SILCL in accordance with IEC62061 2
Performance Level (PL) in accordance with ISO13849-1 d
1
2
3
4
5
7
6
1 Scanner unit
2 Connection unit PROFINET (CU400P-3M12)
3 Optics cover
4 Alphanumerical display (displayed)
5 RSL400 LED indicators
6 Mini-B USB connection (behind protective cap)
7 RSL400 PROFINET LED indicators
Fig.3.1: Device overview of RSL400 safety laser scanners with PROFIsafe interface

Device description
Leuze electronic GmbH + Co. KG RSL 420P 14
All safety sensors of the RSL420P series are equipped as follows:
• Laser scanner with the range class S, M, L or XL:
Operating range
class
Operating range [m]
S 3.00
M 4.5
L 6.25
XL 8.25
• 24-digit alphanumerical display
• Integrated electronic spirit level for aligning the safety sensor
• LED indicator
• USB interface
NOTICE
ÄUse the USB connection only temporarily for configuration or diagnosis of the safety sensor.
ÄFor permanent connection, connect the safety sensor to the Ethernet connection of the con-
nection unit.
• Connection unit:
• Configuration memory
• Ethernet connection for communication and configuration with the PC/laptop
3.1 Device overview
The following table provides an overview of the possible uses, features and functions of the RSL400 safety
sensors with PROFIsafe interface.
Tab.3.1: Device overview
RSL420P RSL450P
RSL455P
Stationary danger zone guarding x x
Mobile danger zone guarding x x
Point of operation guarding x x
Safe output signals 1bit 4bit
Additional output signals See description of the process data
Number of changeover-capable protective/warning field
pairs
10 100
Four field mode (quads) - x
Measurement data output optimized for vehicle naviga-
tion
- Only RSL 455P
USB interface x x
3.1.1 Protective function of RSL400 safety sensors
The safety sensor transmits periodic light pulses via a rotating deflection unit. The light pulses are scattered
in all directions by obstacles, e.g. persons. A part of the light pulses is received again by the safety sensor
and evaluated. The safety sensor calculates the precise position of the object from the propagation time of
the radiated light and the current angle of the deflection unit at that time. If the object is within a predefined
area, the protective field, the safety sensor performs a safety-related switching function. It switches the
safety-related switching outputs off.

Device description
Leuze electronic GmbH + Co. KG RSL 420P 15
Only when the protective field is free again does the safety sensor reset the safety-related switching func-
tion, either automatically or following acknowledgment, depending on the operating mode.
The safety sensor can even detect people when they are wearing very dark clothes, which have a very
weak diffuse reflectance.
3.1.2 Device and monitoring functions
• Monitoring and release of field pair changeover
3.2 USB connection
The safety sensor features a Mini-B type USB socket as a service interface for configuration and diagnosis.
This interface can be used with a device firmware version V4.5 and higher.
NOTICE
ÄUse the USB connection only temporarily for configuration or diagnosis of the safety sensor.
ÄFor permanent connection, connect the safety sensor to the Ethernet connection of the con-
nection unit.
NOTICE
ÄAfter use, seal the USB connection using a protection cap. Make sure that the protection
cap is felt to engage when sealing. The IP degree of protection specified in the technical
data is only achieved when the protection cap is closed.
3.3 Connection units
The safety sensor is mounted, connected and aligned using the connection unit.
Functions of connection unit:
• Attachment point for mounting, either directly or using an optional mounting system.
When devices are swapped out, the connection unit remains mounted and aligned.
• EMC wiring for signal inputs/outputs and supply using connection cable
• Connector bushing and EMC for the Ethernet TCP/IP communication and configuration interface to the
PC/laptop
• Memory for the configuration files and automatic parameter transfer in the event of device swap-out
• Quick-release connection to the scanner unit for easy device swap-out (see "Quick Start Guide
RSL400").
NOTICE
To ensure the IP protection and leak tightness of the devices, the supplied protection caps must
always be placed on unused connections.
Connection unit CU400P-3M12
• Three connections with M12 connectors / sockets

Device description
Leuze electronic GmbH + Co. KG RSL 420P 16
2 31
1 M12 connector, A-coded, voltage supply, I/O signal RSL
2 M12 socket, D-coded, PROFINET/PROFIsafe communication, input
3 M12 socket, D-coded, PROFINET/PROFIsafe communication, output
Fig.3.2: Device with connection unit CU400P-3M12
Connection unit CU400P-4M12
• Four connections with M12 connectors / sockets for power and communication
4321
1 M12 connector, L-coded, voltage supply
2 M12 socket, D-coded, PROFINET/PROFIsafe communication, input
3 M12 socket, D-coded, PROFINET/PROFIsafe communication, output
4 M12 socket, L-coded, voltage supply
Fig.3.3: Device with connection unit CU400P-4M12
Connection unit CU400P-AIDA
• Four push/pull connectors for power and communication
• PROFINET/PROFIsafe connection via copper cable

Device description
Leuze electronic GmbH + Co. KG RSL 420P 17
1
2 31
1 AIDA sockets, PROFINET, push-pull, 5-pin, voltage supply
2 AIDA socket, PROFINET, RJ45 push-pull, 8-pin, Ethernet, input
3 AIDA socket, PROFINET, RJ45 push-pull, 8-pin, Ethernet, output
Fig.3.4: Device with connection unit CU400P-AIDA
Connection unit CU400P-AIDA-OF
• Four push/pull connectors for power and communication
• PROFINET/PROFIsafe connection via fiber optics
1
2 31
1 AIDA sockets, PROFINET, push-pull, 5-pin, voltage supply via copper cable
2 AIDA socket, PROFINET, SCRJ push-pull, 2-pin, PROFINET/PROFIsafe communication via fiber-optic cable, in-
put
3 AIDA socket, PROFINET, SCRJ push-pull, 2-pin, PROFINET/PROFIsafe communication via fiber-optic cable, out-
put
Fig.3.5: Device with connection unit CU400P-AIDA-OF
3.4 Display elements
The display elements of the safety sensors simplify start-up and fault analysis.
3.4.1 RSL 400 LED indicator
Located on the connection unit are the LEDs for displaying the operating state.

Device description
Leuze electronic GmbH + Co. KG RSL 420P 18
• Protective function A: LEDs 1, 2, 3
1 2 3 4 5 6
1 LED1, red/green
2 LED2, yellow
3 LED3, blue
4 LED4, blue
5 LED5, yellow
6 No function
Fig.3.6: LED indicators
Tab.3.2: Meaning of the LEDs
LED Color State Description
1 Red/green OFF Device switched off
Red Safety signal off
Red, flashing Error
Green Safety signal on
2 Yellow OFF RES deactivated
RES activated and enabled
Flashing Protective field occupied
ON RES activated and blocked but ready to be unlocked
Protective field free and linked sensor enabled (if applicable)
3 Blue OFF Free warning field
ON Warning field interrupted
4 Blue OFF Four field mode: warning field3 free
ON Four field mode: warning field3 interrupted
5 Yellow Flashing Four field mode: warning field2 interrupted

Device description
Leuze electronic GmbH + Co. KG RSL 420P 19
3.4.2 LED indicator of PROFINET connection unit
The PROFINET connection units are equipped with an additional LED indicator for displaying the
PROFINET/PROFIsafe communication status.
PWR Power LED, green/red
PS PROFIsafe LED, green/red
NET NET LED, green/red/orange
LNK/ACT1
LNK/ACT2
Link LEDs, green/orange
Fig.3.7: LED indicators of PROFINET connection units
Tab.3.3: Meaning of the LEDs
LED Color State Description
PWR Green/red Supply voltage of the PROFINET connection unit
OFF Device not supplied with power or switched off
Red Error during self test or internal communication problems
Green,
flashing
PROFINET wave function active
Green,
continuous
light
Device switched on, supply voltage applied, no internal error
PS Green/red PROFIsafe LED
OFF PROFIsafe communication not initialized or switched off
Green,
flashing
Device in passive state or PROFINET wave function active
Green,
continuous
light
Device on PROFIsafe active
Red, flash-
ing
PROFIsafe configuration failed
Red, con-
tinuous
light
PROFIsafe communication error

Device description
Leuze electronic GmbH + Co. KG RSL 420P 20
LED Color State Description
NET Red/green/
orange
Ethernet communication
OFF PROFINET communication not initialized or inactive
Green,
flashing
PROFINET bus initialization or PROFINET wave function ac-
tive
Green,
continuous
light
PROFINET active, data exchange with IO controller active
Orange,
flashing
Ethernet topology error
Red, flash-
ing
Ethernet configuration failed, no data exchange or exchange
of invalid data
Red, con-
tinuous
light
Bus error, no communication
LNK/ACT1
LNK/ACT2
Green/or-
ange
Ethernet link
OFF No Ethernet link present
Green,
continuous
light
Ethernet link active, no current data transmission
Green /
orange,
flashing
Ethernet link active, current data transmission
3.4.3 Alphanumerical display
In normal operation, the 24-digit alphanumerical display of the safety sensor shows the monitored protec-
tive and warning field pairs. It also provides assistance during detailed error diagnostics (see chapter 13
"Diagnosis and troubleshooting").
Tab.3.4: Alphanumerical displays
Display Description Example
Upon startup without configuration/upon initial commissioning
Sensor type Sensor type 420P-M
Software version Software version of the device V5.1
Sensor serial number Sensor serial number SN: 21513123456
Sensor name / Network name Name of the sensor / network A123456789
IP: DHCP/FIX DHCP or permanent IP address IP: DHCP
IP: 10.25.45.2
Bluetooth on/off Bluetooth detection ON/OFF Bluetooth ON