Datasensing SH4 ADVANCED Installation and operation manual

SH4 ADVANCED
PRODUCT REFERENCE GUIDE
Safety Light Curtains

Datasensing S.r.l.
Strada S. Caterina 235
41122 Modena
Italy
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Fax [phone]
© 2022 Datasensing S.r.l.
All rights reserved. Without limiting the rights under copyright, no part of this documentation may be repro-
duced, stored in or introduced into a retrieval system, or transmitted in any form or by any means, or for any
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hereby granted a non-exclusive, revocable license to reproduce and transmit this documentation for the
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including copyright notices, contained in this documentation and shall ensure that all notices appear on any
reproductions of the documentation. Electronic versions of this document may be downloaded from the
Datasensing website (www.datasensing.com).
Disclaimer
Datasensing has taken reasonable measures to provide information in this manual that is complete and
accurate, however, Datasensing shall not be liable for technical or editorial errors or omissions contained
herein, nor for incidental or consequential damages resulting from the use of this material. Datasensing
reserves the right to change any specification at any time without prior notice.
Trademarks
Datasensing and the Datasensing logo are trademarks of Datasensing S.r.l.
Patents
See www.patents.datasensing.com for patent list.
This product is covered by one or more of the following patents:
Utility patents: IT1363719, IT1427575, US10188007
ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)

PRODUCT REFERENCE GUIDE iii
TABLE OF CONTENTS
PREFACE .................................................................................................................VII
About this Manual .......................................................................................................... vii
Manual Conventions .......................................................................................................................... vii
Technical Support .......................................................................................................... vii
Support Through the Website ........................................................................................................... vii
Warranty ...................................................................................................................... viii
CHAPTER 1. GENERAL INFORMATION.......................................................................1
General Description ......................................................................................................... 1
Model Description ............................................................................................................ 3
Compliance ...................................................................................................................... 4
European Declaration of Conformity ..................................................................................................4
UKCA Declaration of Conformity ........................................................................................................4
Laser Safety .........................................................................................................................................4
CHAPTER 2. INSTALLATION .....................................................................................6
Package Contents ............................................................................................................ 6
Precautions to be observed for the choice and installation .................................................. 7
How to choose the device ................................................................................................. 8
Detection capability .............................................................................................................................8
Height of the detection zone ...............................................................................................................9
Minimum installation distance .........................................................................................................10
Practical examples ....................................................................................................................11
Typical applications ........................................................................................................ 12
Example 1: Operating point protection on drilling machines ..........................................................12
Example 2: Bending presses ............................................................................................................12
Example 3: Paper cutting machines .................................................................................................13
Example 4: Milling machines ............................................................................................................13
Safety information ......................................................................................................... 14
General information on device positioning ....................................................................... 15
Minimum distance from reflecting surface (DSR) ...........................................................................16
Distance between homologous devices ...........................................................................................17
Emitter and receiver orientation ......................................................................................................19
Use of deviating mirrors ...................................................................................................................19
Controls after first installation .........................................................................................................20
CHAPTER 3. MECHANICAL MOUNTING.................................................................... 22
CHAPTER 4. CONNECTIONS .................................................................................... 26
Electrical Connection ...................................................................................................... 26
Pin-out and configuration pin connection ........................................................................................26
I/O Configuration ...............................................................................................................................28
Input signals ..............................................................................................................................28
Output signals ...........................................................................................................................28
Signals Logic Level ...................................................................................................................28
Notes on connections .......................................................................................................................29
Example: connection to the safety relay SE-SR2 ....................................................................29
............................................................................................................................................................30

CONTENTS
iv SH4 ADVANCED
CHAPTER 5. SH4 DESIGNER ................................................................................... 32
Get the APP ...................................................................................................................33
How to connect to the ESPE ............................................................................................34
User Interface ................................................................................................................35
Menu toolbar .....................................................................................................................................36
Configuration .....................................................................................................................................37
Standard button ........................................................................................................................38
Safety function toolbar .............................................................................................................38
Configuration area ....................................................................................................................38
Monitoring .........................................................................................................................................42
Information ........................................................................................................................................42
Change device password ..................................................................................................................43
Change Wi-Fi settings .......................................................................................................................43
Firmware update ...............................................................................................................................43
Factory Reset ....................................................................................................................................43
User Manual ......................................................................................................................................43
Offline Configuration .........................................................................................................................44
Report Check .....................................................................................................................................45
CHAPTER 6. ALIGNMENT PROCEDURE.................................................................... 48
Alignment ......................................................................................................................48
Alignment Procedure ........................................................................................................................49
User interface indication with light curtain in alignment mode ......................................................50
SH4-14/30-XXXX-A-X-X ...........................................................................................................50
LED meanings ...........................................................................................................................50
SH4-2/3/4-XXXX-A-X-X models ...............................................................................................52
LED meanings ...........................................................................................................................52
Integrated Laser Aimer (SH4-14/30-XXXX-A-X-X models only) .......................................53
Integrated Led Aimer (SH4-2/3/4-XXXX-A-X-X models only) ...........................................53
CHAPTER 7. FUNCTIONS ........................................................................................ 54
Restart mode .................................................................................................................55
Automatic Restart .............................................................................................................................55
Manual Restart ..................................................................................................................................56
Configuration of Restart mode .........................................................................................................57
Reset .............................................................................................................................58
EDM ..............................................................................................................................59
Configuration .....................................................................................................................................60
Anti Interference coding .................................................................................................61
Configuration RX ...............................................................................................................................61
Configuration TX ................................................................................................................................61
Test ...............................................................................................................................62
Emission Range Selection (SH4-X-XXXX-X models only) .................................................63
Muting ...........................................................................................................................64
Configuration: ....................................................................................................................................65
Typical Muting application and safety light curtain connection ......................................................66
Muting mode selection .....................................................................................................................66
L muting (2 signals/2 sensors) ................................................................................................67
T muting (2 signals/4 sensors) .................................................................................................69
T muting (4 signals/4 sensors; time or sequence monitoring) ..............................................71
Partial Muting ....................................................................................................................................74
Auto-Dynamic Partial Muting ...................................................................................................75
Muting enabling .................................................................................................................................76
Muting inputs filter ............................................................................................................................76
Muting signaling devices ..................................................................................................................77
Electrical Connection ................................................................................................................78
Override ........................................................................................................................79
Blanking (SH4-XX-XXXX-X models only) .........................................................................81
Configuration: ....................................................................................................................................82
External Teach-In Blanking (SH4-XX-XXXX-X models only) ...........................................................83
Blanking Signaling ............................................................................................................................84

CONTENTS
PRODUCT REFERENCE GUIDE v
Reduced resolution (SH4-XX-XXXX-X models only) ......................................................... 85
Muting+blanking (SH4-XX-XXXX-X models only) ............................................................. 86
Configuration: ....................................................................................................................................87
CHAPTER 8. USER INTERFACE DIALOGUE............................................................... 88
SH4-14/30-XXXX-A-12-(5) models ................................................................................ 88
LED meanings ...........................................................................................................................88
RX Side dialogue ................................................................................................................................89
TX Side dialogue ................................................................................................................................92
SH4-2/3/4-XXXX-A-12-(5) Models ................................................................................. 93
LED meanings ...........................................................................................................................93
RX Side dialogue ................................................................................................................................94
TX Side dialogue ................................................................................................................................97
CHAPTER 9. PERIODICAL CHECKS .......................................................................... 98
General information and useful data ............................................................................... 99
CHAPTER 10. DEVICE MAINTENANCE................................................................... 100
Product disposal .......................................................................................................... 100
APPENDIX A. TECHNICAL DATA ........................................................................... 101
APPENDIX B. AVAILABLE MODELS AND RESPONSE TIMES................................... 104
Models ........................................................................................................................ 104
Pairing table ....................................................................................................................................105
Response Times ........................................................................................................... 105
SH4-14-XXXX-X-X models ..............................................................................................................105
SH4-30-XXXX-X-X models ..............................................................................................................105
SH4-2/3/4-XXXX-X-X models .........................................................................................................106
................................................................................................................................... 107
APPENDIX C. OVERALL DIMENSIONS ................................................................... 108
SSH4-14-XXXX-X-X .................................................................................................... 108
SH4-30-XXXX-X-X ...................................................................................................... 109
SH4-2/3/4-XXXX-X-X .................................................................................................. 110
................................................................................................................................... 110
APPENDIX D. INCLUDED ACCESSORIES................................................................ 111
Metal Angled fixing Bracket .......................................................................................... 111
APPENDIX E. ACCESSORIES ................................................................................. 113
Brackets ...................................................................................................................... 113
Metal Angled Fixing Bracket ...........................................................................................................113
Angled fixing bracket mounting with orientable and anti-vibration supports .............................114
Rotating Bracket .............................................................................................................................115
................................................................................................................................... 115
Protective tubes and stands .......................................................................................... 116
Protective Stands ............................................................................................................................116
Mounting kit ............................................................................................................................116
Plate Kit for Protective Stands .......................................................................................................117
Mounting with SG-P SB ..........................................................................................................117
Columns and floor stands ...............................................................................................................118
Mirrors ........................................................................................................................ 119
Deviating mirrors ............................................................................................................................119
Mounting kit for SG-DM with SE-S column and floor stands .......................................................120
Mounting kit SG-DM on SG-PSB (ST-PS-DM) ...............................................................................120
Connection cables ........................................................................................................ 121
12-poles M12 cables (Receiver main connector) ..........................................................................121
5-poles M12 cables (Transmitter main connector) .......................................................................121
5-poles M12 cables (Receiver/Transmitter secondary connector) ...............................................121

CONTENTS
vi SH4 ADVANCED
Cascade cables (5-poles M12 male/female) ..................................................................................121
(SH-LP) Laser pointer .................................................................................................. 122
Safety Units ................................................................................................................. 123
Safety unit ........................................................................................................................................123
EDM relay box .................................................................................................................................123
Accessories for Muting ................................................................................................. 124
External Muting Lamps ..................................................................................................................124
Muting cables ..................................................................................................................................125
Couple arms ....................................................................................................................................125
SH-T-ARMS .............................................................................................................................125
SH-L-ARMS .............................................................................................................................125
Connection Box ...............................................................................................................................126
APPENDIX F. CASCADE SYSTEM .......................................................................... 129
Overview ..................................................................................................................... 129
Connection ................................................................................................................... 131
RX connection ..................................................................................................................................131
TX connection ..................................................................................................................................132
Protected Area .............................................................................................................133
Operation ..................................................................................................................... 133
User Interface Dialogue ................................................................................................134
LED meanings .........................................................................................................................134
RX Side dialogue .............................................................................................................................135
TX Side dialogue ..............................................................................................................................136
Response Time .............................................................................................................137
Recovery Time .............................................................................................................137
...................................................................................................................................138
APPENDIX G. GLOSSARY ..................................................................................... 140

PRODUCT REFERENCE GUIDE vii
PREFACE
ABOUT THIS MANUAL
This Product Reference Guide (PRG) is provided for users seeking advanced technical
information, including connection, programming, maintenance and specifications. The
Quick Reference Guide (QRG) and other publications associated with this product can
be downloaded free of charge from the website listed on the back cover of this manual.
Manual Conventions
The symbols listed below are used in this manual to notify the reader of key issues or
procedures that must be observed when using the laser marker:
TECHNICAL SUPPORT
Support Through the Website
Datasensing provides several services as well as technical support through its website.
Log on to (www.datasensing.com).
For quick access, from the home page click on the search icon , and type in the name of
the product you’re looking for. This allows you access to download Data Sheets, Manu-
als, Software & Utilities, and Drawings.
NOTE: Notes contain information necessary for properly diagnosing,
repairing and operating the safety light curtain.
CAUTION: This symbol advises you of actions that could damage equipment
or property.
WARNING: This symbol advises you of actions that could result in harm or
injury to the person performing the task.

PREFACE
viii SH4 ADVANCED
WARRANTY
Datasensing warrants that the Products shall be free from defects in materials and workmanship
under normal and proper use during the Warranty Period. Products are sold on the basis of
specifications applicable at the time of manufacture and Datasensing has no obligation to
modify or update Products once sold. The Warranty Period shall be three years from the date of
shipment by Datasensing, unless otherwise agreed in an applicable writing by Datasensing.
Datasensing will not be liable under the warranty if the Product has been exposed or subjected
to any: (1) maintenance, repair, installation, handling, packaging, transportation, storage,
operation or use that is improper or otherwise not in compliance with Datasensing’s instruction;
(2) Product alteration, modification or repair by anyone other than Datasensing or those
specifically authorized by Datasensing; (3) accident, contamination, foreign object damage,
abuse, neglect or negligence after shipment to Buyer; (4) damage caused by failure of a
Datasensing-supplied product not under warranty or by any hardware or software not supplied
by Datasensing; (5) any device on which the warranty void seal has been altered, tampered with,
or is missing; (6) any defect or damage caused by natural or man-made disaster such as but not
limited to fire, water damage, floods, other natural disasters, vandalism or abusive events that
would cause internal and external component damage or destruction of the whole unit,
consumable items; (7) use of counterfeit or replacement parts that are neither manufactured
nor approved by Datasensing for use in Datasensing-manufactured Products; (8) any damage or
malfunctioning caused by non-restoring action as for example firmware or software upgrades,
software or hardware reconfigurations etc.; (9) loss of data; (10) any consumable or equivalent
(e.g. cables, power supply, batteries, etc.); or (11) any device on which the serial number is
missing or not recognizable.
THE DATASENSING WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES,
WHETHER WRITTEN, EXPRESS, IMPLIED, STATUTORY OR OTHERWISE, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR
PURPOSE. DATASENSING SHALL NOT BE LIABLE FOR ANY DAMAGES SUSTAINED BY BUYER
ARISING FROM DELAYS IN THE REPLACEMENT OR REPAIR OF PRODUCTS UNDER THE ABOVE.
THE REMEDY SET FORTH IN THE WARRANTY STATEMENT IS THE BUYER’S SOLE AND EXCLUSIVE
REMEDY FOR WARRANTY CLAIMS. NO EXTENSION OF THIS WARRANTY WILL BE BINDING UPON
DATASENSING UNLESS SET FORTH IN WRITING AND SIGNED BY DATASENSING'S AUTHORIZED
REPRESENTATIVE. DATASENSING'S LIABILITY FOR DAMAGES ON ACCOUNT OF A CLAIMED
DEFECT IN ANY PRODUCT DELIVERED BY DATASENSING SHALL IN NO EVENT EXCEED THE
PURCHASE PRICE OF THE PRODUCT ON WHICH THE CLAIM IS BASED. DATASENSING SHALL NOT
BE LIABLE FOR DAMAGES RELATING TO ANY INSTRUMENT, EQUIPMENT, OR APPARATUS WITH
WHICH THE PRODUCT SOLD UNDER THIS AGREEMENT IS USED. Further details on warranty
coverage, rights and conditions are addressed under and regulated by the Terms and Conditions
of Sales of Datasensing available at https://www.datasensing.com/terms_conditions_sales.

PRODUCT REFERENCE GUIDE 1
CHAPTER 1
GENERAL INFORMATION
GENERAL DESCRIPTION
The safety light curtains are optoelectronic multi-beam devices that are used to protect
working areas that, in presence of machines, robots, and automatic systems in general,
can become dangerous for operators that can get in touch, even accidentally, with mov-
ing parts.
The light curtains are intrinsic safety systems used as accident-prevention protection
devices and are manufactured in accordance with the international Standards in force
for safety, in particular:
NORM DESCRIPTION
EN 61496-1: 2020
Safety of machinery: electro-sensitive protective equipment.
Part 1: General prescriptions and tests.
EN 61496-2: 2020
Safety of machinery: electro-sensitive protective equipment - par-
ticular requirements for equipment using active optoelectronic pro-
tective devices.
EN ISO 13849-1: 2015
Safety of machinery. Safety-related parts of control systems.
Part 1: General principles for design.
EN 61508-1: 2010
Functional safety of electrical/electronic/programmable electronic
safety-related systems.
Part 1: General requirements.
EN 61508-2: 2010
Functional safety of electrical/electronic/programmable electronic
safety-related systems.
Part 2: Requirements for electrical/electronic/programmable elec-
tronic safety-related systems.
EN 61508-3: 2010
Functional safety of electrical/electronic/programmable electronic
safety-related systems.
Part 3: Software requirements.
EN 61508-4: 2010
Functional safety of electrical/electronic/programmable electronic
safety-related systems.
Part 4: Definitions and abbreviations.
EN 62061:2005/A2:2015
Safety of machinery. Functional safety of electrical/ electronic/pro-
grammable electronic safety-related control systems.

GENERAL INFORMATION
2 SH4 ADVANCED
The device, consisting in one emitting and one receiving unit housed inside strong alu-
minum profiles, generates infrared beams that detect any opaque object positioned
within the light curtain detection field.
The emitting and the receiving units are equipped with command and control functions
(no external control unit is required).
Electrical connections are made through removable pig-tails which attaches to the light
curtain through a custom connector (the same for all models) and provides one or two
M12 standard connectors from 5 to 12pin.
The synchronization between the emitter and the receiver takes place optically by
means of both the first and the last optic: no electrical connection between the two
units is required and one (of two) sync beam can be part of a blanked area.
The microprocessors guarantee the check and the management of the beams that are
sent and received through the units: the microprocessors - through some LEDs - inform
the operator about the general conditions of the light curtain and about eventual faults.
As soon as an object, a limb or the operator's body accidentally interrupts the beams
sent by the emitter, the receiver immediately switches off the OSSD output and blocks
the machine (if correctly connected to the OSSD).
The SH4 safety light curtains are used in all automation fields where it is necessary to
control and protect the access to dangerous zones. In particular they are used in Manu-
facturing industry, especially the three main vertical markets: Automotive, Electronics,
Food & Beverage. Most common vertical applications: Robotics, Metalworking, Intra-
logistic and Material Handling (incl. Packaging and Assembling), General Manufacturing.
The unit consists of modular optical units, that are made of one or more transmitter and
receiver pairs.
Each optical unit can be composed by bars containing a lot of optical units, according to
kind of model.
Receiver part is the main controller of all function, it checks and decides about safety
action in case of failure has other generic issue.
Emitter is a one task device: it runs continuously, lighting in sequence it's IR-photo emit-
ters.
NOTE: This manual contains all the information necessary for the selection
and operation of the safety devices.
However, specialized knowledge not included in this technical description
is required for the planning and implementation of a safety light curtain on
a power-driven machine.
As the required knowledge may not be completely included in this manual,
we suggest the customer to contact Datasensing Technical Service for any
necessary information relative to the functioning of the light curtains and
the safety rules that regulate the correct installation.

MODEL DESCRIPTION
PRODUCT REFERENCE GUIDE 3
MODEL DESCRIPTION
SH4 safety light curtains are described by their model description which indicates the
characteristics listed in the diagram below. Not all combinations are available. For a
complete list of combinations see the Models tab on the Product page of the website.
SH4 - xx - xxxx - x - x - x
Detection
capability or
n. of beams
Monitored
height in mm Functionality Rx main connector
Rx secondary
connector
14 mm 300 to 2250 B = Base 5 pin M12 5 pin M12
30 mm S = Standard 8 pin M12 none
2 beams SM = Standard Muting 12 pin M12
3 beams A= Advanced
4 beams C = Cascade
NOTE: For 14/30 mm resolutions protected height starts from 300 mm up
to 2250 mm with 150 mm modularity.
BASE STANDARD STANDARD MUTING ADVANCED
FUNCTION
Automatic Restart Manual / Automatic Restart
Reset
External Device Monitoring (EDM)
Alignment Function
2-signals T Muting / L Muting
Single Override
2-signals muting dependent Override
Partial muting (half protection height)
Muting input filtering and timeout setting
Anti-interference coding
4-signals Muting
Dynamic partial muting
Partial Muting
(at beams level)
Fixed Blanking1
1. 1 Up to 5 simultaneous fixed or floating blanking zones can be used.
External signal fixed2
blanking teach-in
2. The response time depends on model height and the activation of anti interference code: for details refer to Response
times table
Floating Blanking
Reduced resolution
Integrated aimer
CONFIGURATION
- By wiring By Dip-Switch By APP via Wi-Fi
NOTE: This Product Reference Guide describes the ADVANCED models. For
Standard Muting and Base/Standard models refer to relative Product Ref-
erence Guide.

GENERAL INFORMATION
4 SH4 ADVANCED
COMPLIANCE
European Declaration of Conformity
Hereby, Datasensing S.r.l. declares that the full text of the European Declaration of Con-
formity is available at: www.datasensing.com. Select the link from the downloads sec-
tion of the product page.
UKCA Declaration of Conformity
Hereby, Datasensing S.r.l. declares that the full text of the UKCA Declaration of Confor-
mity is available at: www.datasensing.com. Select the link from the downloads section
of the product page.
Laser Safety
The following information applies to Laser Aimer system, used on SH4 Advanced 14/
30mm. The laser radiation is visible to the human eye and is emitted from the window
indicated in the figure below.
LASER RADIATION - DO NOT STARE INTO BEAM
CLASS 2 LASER PRODUCT
MAX OUTPUT RADIATION 1 mW
EMITTER WAVE LENGTH 630-660nm
IEC 60825-1 (2014).
Figure 1: Laser label on TX unit

COMPLIANCE
PRODUCT REFERENCE GUIDE 5

6 SH4 ADVANCED
CHAPTER 2
INSTALLATION
PACKAGE CONTENTS
Package contains the following objects:
• Receiver (RX)
• Emitter (TX)
• Quick Guide of safety light curtain
• Periodical checklist and maintenance schedule
• 4 angled fixing brackets and specific fasteners
• 2 additional angled fixing brackets for models with heights equal or greater than
1200 mm.

PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND INSTALLATION
PRODUCT REFERENCE GUIDE 7
PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND
INSTALLATION
• The outputs (OSSD) of the ESPE must be used as machine stopping devices and
not as command devices.
• The machine must have its own START command.
• The dimension of the smallest object to be detected must be larger than the reso-
lution level of the device.
• The ESPE must be installed in an environment complying with the characteristics
indicated in Technical Data, starting on page 73.
• The ESPE must not be installed close to strong and/or flashing light sources, in par-
ticular close to the front window of receiving unit.
• The presence of intense electromagnetic disturbances could affect device’s cor-
rect operation.
• This condition shall be carefully assessed with the advice of Datasensing Technical
Service.
• The operating distance of the device can be reduced in presence of smog, fog or
airborne dust.
• A sudden change in environment temperature, with very low minimum peaks, can
generate a small condensation layer on the lenses and thus jeopardize correct
operation.
CAUTION: Make sure that the protection level assured by the light curtain
device is compatible with the real danger level of the machine to be con-
trolled, according to EN ISO 13849-1: 2015 or EN 62061:2005/A2: 2015.

INSTALLATION
8 SH4 ADVANCED
HOW TO CHOOSE THE DEVICE
There are at least three different main characteristics that should be considered when
choosing a safety light curtain, after having evaluated the risk assessment.
Detection capability
The detection capability (or resolution) of the device is the minimum diameter that an
opaque object must have in order to obscure at least one of the beams that constitute
the detection zone and to actuate the sensing device.
The resolution is related to the part of the body to be protected.
As shown in the following figure the resolution only depends on the geometrical charac-
teristics of the lenses, diameter and distance between centers, and is independent of
any environmental and operating conditions of the safety light curtain.
Figure 2: Detection capability
The resolution value is obtained applying the following formula:
R = I + d
where:
I = Interaxes between two adjacent optics
d = Lens diameter
R = 14 mm Finger protection
R = 30 mm Hand protection
Operating distance
Protected height
R
opaque
object
d
I

HOW TO CHOOSE THE DEVICE
PRODUCT REFERENCE GUIDE 9
Height of the detection zone
The controlled height is the height protected by the safety light curtain.
In SH4-14/30 Protected Height is equal to ESPE total length: no dead zone is present.
In SH4-2/3/4, first beam center is positioned at 130 mm from light curtain bottom, pro-
tected height is defined as the distance between uppermost and lowermost beam
centreline.
Figure 3: Detection zone
Referring to the figure above the protected height is reported in the table here below.
MODEL PROTECTED HEIGHT (mm)
SH4-14/30-0300-X-X
300
SH4-14/30-0450-X-X
450
SH4-14/30-0600-X-X
600
SH4-14/30-0750-X-X
750
SH4-14/30-0900-X-X
900
SH4-14/30-1050-X-X
1050
SH4-14/30-1200-X-X
1200
SH4-14/30-1350-X-X
1350
SH4-14/30-1500-X-X
1500
SH4-14/30-1650-X-X
1650
SH4-14/30-1800-X-X
1800
SH4-14/30-1950-X-X
1950
SH4-14/30-2100-X-X
2100
SH4-14/30-2250-X-X
2250
SH4-2-0500-X(X)-X-(X)
500
SH4-3-0800-X(X)-X-(X)
800
SH4-4-0900-X(X)-X-(X)
900
SH4-4-1200-X(X)-X-(X)
1200
PROTECTED
AREA
Protected height
Operating distance
PROTECTED
AREA
Protected height 130mm
Operating distance
SH4-14/30 SH4-2/3/4

INSTALLATION
10 SH4 ADVANCED
Minimum installation distance
The safety device must be positioned at a specific safety distance (Operating distance).
This distance must ensure that the dangerous area cannot be reached before the dan-
gerous motion of the machine has been stopped by the Safety Control System.
The safety distance depends on 4 factors, according to the EN ISO 13855 Standard:
• Response time of the ESPE (the time between the effective beam interruption and
the opening of the OSSD contacts)
• Machine stopping time including Safety Control System computing and actuating
time if present.
• ESPE resolution
• Approaching speed of the object to be detected
Figure 4: Installation distance (vertical positioning)
The following formula is used for the calculation of the safety distance:
S = K (t1 + t2) + C
where:
• S = Minimum safety distance in mm
• K = Speed of the object, limb or body approaching the dangerous area in mm/s
• t1 = Response time of the ESPE in seconds (see appendix “Technical Data”.)
• t2 = Machine stopping time in seconds (including the Safety Control System)
• C = Additional distance based on the possibility to insert the body or one of the
body parts inside the dangerous area before the protective device trips.
• C = 8 (R - 14) for devices with resolution ≤ 40 mm
• C = 850 mm for devices with resolution > 40 mm
• R = Resolution of the system
When devices with > 40 mm resolution are used, the height of the top beam has to be ≥
900 mm (H2) from machine supporting base while the height of the bottom beam has
to be ≤ 300 mm (H1).
NOTE: K value is:
2000 mm/s if the calculated value of S is ≤ 500 mm
1600 mm/s if the calculated value of S is > 500 mm

HOW TO CHOOSE THE DEVICE
PRODUCT REFERENCE GUIDE 11
If the safety light curtain must be mounted in a horizontal position (see figure below)
the distance between the dangerous area and the most distant optical beam must be
equal to the value calculated using the following formula:
S = 1600 mm/s (t1 + t2) + 1200 - 0.4 H
where:
• S = Minimum safety distance in mm
• t1 = Response time of the ESPE in seconds (see appendix “Technical Data”.)
• t2 = Machine stopping time in seconds (including the Safety Control System)
• H = Beam height from ground; this height must always be less than 1,000 mm
Figure 5: Installation distance (horizontal positioning)
Practical examples
Let's suppose to have a light curtain with height = 600 mm
To calculate the distance of the device from the ESPE, in a vertical position, the follow-
ing formula is used:
S = K*T + C
where:
• S = Minimum safety distance in mm
• t1 = ESPE response time
• t2 = Machine stopping time (including the Safety Control System)
• T = (t1 +t2) Overall system stopping performance
• C = 8 * (R - 14) for devices with resolution ≤ 40 mm
• R = Resolution of the system
In all cases, if K = 2000 mm/s, then S > 500 mm.
Distance will have to be recalculated using K = 1600 mm/s.
NOTE: The reference standard is EN ISO 13855 “Safety of machinery -
Positioning of safeguards with respect to the approach speeds of parts of
the human body”.
The following information is to be considered as indicative and concise.
For correct safety distance please refer to complete standard EN ISO 13855

INSTALLATION
12 SH4 ADVANCED
TYPICAL APPLICATIONS
Example 1: Operating point protection on drilling machines
The operator positions the part and takes it back after machining. The operator must be
protected against possible abrasions while working.
Solution: SH4 14mm safety light curtain is especially suitable for this kind of applica-
tion, which requires the installation of the device directly on the machine.
Advantages: Highly reduced profile size guarantees installation flexibility for machine
dimensions.
Example 2: Bending presses
The safety device must protect the operator from being squashed between the top and
bottom tool or the machined part during the fast approach phase.
Solution: If only one beam of the safety light curtain is darkened while the press is mov-
ing down, the mobile tool bar will stop.
Advantages: The safety light curtain can be used in most bending operations thanks to
its easy installation and compact dimensions.
As well as offering excellent reliability, SH4 ensures increased plant productivity as it
reduces the dead times necessary for machine accessing, adjustment and maintenance.