Datalogic SG4-14-090-OO-P, SG4-14-075-OO-P, SG4-14-060-OO-P, SG4-14-120-OO-P, SG4-14-135-OO-P Instruction Manual
...
SG4 EXTENDED
Instruction Manual
ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)
Datalogic Automation S.r.l.
Via Lavino, 265
40050 - Monte S. Pietro
Bologna - Italy
“SG4 EXTENDED” Instruction Manual
Ed.: 02/2014 rev.C
© 2012-2014 Datalogic Automation S.r.l. ALL RIGHTS RESERVED. Protected to the fullest extent
under U.S. and international laws. Copying, or altering of this document is prohibited without express
written consent from Datalogic Automation S.r.l.
Datalogic and the Datalogic logo are registered trademarks of Datalogic S.p.A. in many countries,
including the U.S.A. and the E.U.
All brand and product names mentioned herein are for identification purposes only and may be
trademarks or registered trademarks of their respective owners.
Datalogic 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.
03/02/14
iv
CONTENTS
GENERAL VIEW ....................................................................................................... viii
LED DESCRIPTION ................................................................................................... viii
1 GENERAL INFORMATION .............................................................................................. 1
1.1 General Description .................................................................................................... 1
1.1.1 General Description of the safety light curtains .............................................. 1
1.1.2 Package Contents .......................................................................................... 3
1.2 New features compared to SG4 BASE....................................................................... 3
1.3 How to Choose the Device ......................................................................................... 4
1.3.1 Resolution ....................................................................................................... 4
1.3.2 Controlled height ............................................................................................. 5
1.3.3 Minimum installation distance ......................................................................... 6
1.4 Typical Applications .................................................................................................... 8
1.5 Safety informations ..................................................................................................... 9
2 INSTALLATION .............................................................................................................. 10
2.1 Precautions to be observed for the choice and installation ...................................... 10
2.2 General Information on Device Positioning .............................................................. 11
2.2.1 Minimum distance from reflecting surfaces ................................................... 12
2.2.2 Distance between homologous devices........................................................ 13
2.2.3 Emitter and Receiver Orientation .................................................................. 16
2.2.4 Use of deviating mirrors ................................................................................ 16
2.2.5 Checks after first installation ......................................................................... 17
3 MECHANICAL MOUNTING ............................................................................................ 19
4 ELECTRICAL CONNECTIONS ...................................................................................... 21
4.1 Notes on connections ............................................................................................... 24
5 ALIGNMENT PROCEDURE ........................................................................................... 26
6 FUNCTION SETTING ..................................................................................................... 28
6.1 Reset to Factory configuration ................................................................................. 30
6.2 Function List ............................................................................................................. 31
7 FUNCTIONS ................................................................................................................... 33
7.1 Restart mode ............................................................................................................ 33
7.2 Test .......................................................................................................................... 35
7.3 Reset ........................................................................................................................ 36
7.4 EDM ......................................................................................................................... 36
7.5 EDM SELECTION .................................................................................................... 38
7.6 Reduction range ....................................................................................................... 38
7.7 Muting ....................................................................................................................... 40
7.7.1 Muting function disable ................................................................................. 41
7.7.2 Muting signalling devices .............................................................................. 41
7.7.3 Typical muting application and safety light curtain connection ..................... 41
7.7.4 Muting direction ............................................................................................ 41
7.7.5 Muting timeout .............................................................................................. 45
7.7.6 Muting Filter .................................................................................................. 46
7.7.7 Partial muting ................................................................................................ 47
v
7.8 Override .................................................................................................................... 48
7.8.1 Override mode .............................................................................................. 49
7.8.2 Override timeout ........................................................................................... 50
7.8.3 Override restart ............................................................................................. 51
7.9 Blanking .................................................................................................................... 54
7.9.1 Fixed Blanking .............................................................................................. 55
7.9.2 Fixed Blanking with increased tolerance....................................................... 56
7.9.3 Floating Blanking with total surveillance ....................................................... 56
7.9.4 Floating Blanking with partial surveillance .................................................... 56
7.9.5 Reduced Resolution ..................................................................................... 57
7.9.6 Dimension ..................................................................................................... 57
7.9.7 Position ......................................................................................................... 57
7.9.8 Tolerance ...................................................................................................... 57
7.10 Cascade .......................................................................................................... 63
7.11 PNP/NPN ........................................................................................................ 63
7.12 Coding ............................................................................................................. 65
8 DIAGNOSTIC .................................................................................................................. 67
8.1 User interface ........................................................................................................... 67
9 PERIODICAL CHECKS .................................................................................................. 71
9.1 GENERAL INFORMATION AND USEFUL DATA .................................................... 71
9.2 WARRANTY ............................................................................................................. 72
10 DEVICE MAINTENANCE ............................................................................................... 73
10.1 Product disposal .............................................................................................. 73
11 TECHNICAL DATA ......................................................................................................... 74
12
LIST OF AVAILABLE MODELS ..................................................................................... 75
13 OVERALL DIMENSIONS ............................................................................................... 77
14 OUTFIT ........................................................................................................................... 78
15 ACCESSORIES .............................................................................................................. 80
15.1 Brackets fixing ................................................................................................. 80
15.2 Muting lamp ..................................................................................................... 83
15.3 Deviating mirrors ............................................................................................. 84
15.4 Columns and floor stands ................................................................................ 86
15.5 Lens shield (PMMA) ........................................................................................ 87
15.6 Protective stands ............................................................................................. 88
15.7 Plate for protective stands ............................................................................... 89
15.8 Test Piece ....................................................................................................... 89
15.9 SG4-Dongle Ethernet adaptor ......................................................................... 90
15.10 Safety relay ..................................................................................................... 91
15.11 connection cables ............................................................................................ 92
15.12 Muting Arms .................................................................................................... 95
GLOSSARY ................................................................................................................ 98
vi
FIGURES INDEX
Fig. 1 – Resolution ...................................................................................................... 4
Fig. 2 – Controlled height............................................................................................ 5
Fig. 3 – Minimum installation distance (vertical) ......................................................... 6
Fig. 4 – Minimum installation distance (horizontal) ..................................................... 7
Fig. 5 – Incorrect device positioning ......................................................................... 11
Fig. 6 – Correct device positioning ........................................................................... 11
Fig. 7 ........................................................................................................................ 12
Fig. 8 ........................................................................................................................ 12
Fig. 9 – Minimum distance from reflecting surfaces .................................................. 12
Fig. 10 ...................................................................................................................... 13
Fig. 11 – Distance between homologous devices ..................................................... 13
Fig. 12 ...................................................................................................................... 14
Fig. 13 – Interference between adjacent light curtains ............................................. 15
Fig. 14 – Light curtains orientation ............................................................................ 16
Fig. 15 – Use of deviating mirrors ............................................................................. 16
Fig. 16 – Path of the test piece ................................................................................. 17
Fig. 17 – Fixed brackets mounting procedure ........................................................... 19
Fig. 18 – Anti-vibration dampers ............................................................................... 19
Fig. 19 – Light curtain dimensions ............................................................................ 20
Fig. 20 – Connection to safety relay ......................................................................... 24
Fig. 21 – Correct connection of the load ................................................................... 25
Fig. 22 – Incorrect connection of the load (I) ............................................................ 25
Fig. 23 – Incorrect connection of the load (II) ........................................................... 25
Fig. 24 – Incorrect connection of the load (III) .......................................................... 25
Fig. 25 – Behaviour of OSSDs .................................................................................. 25
Fig. 26 – Description of the beams ........................................................................... 26
Fig. 27 – Alignment timings ...................................................................................... 26
Fig. 28 – ACM configuration cycle ............................................................................ 29
Fig. 29 – Safety report .............................................................................................. 30
Fig. 30 – Restart timings (auto) ................................................................................ 33
Fig. 31 – Restart connection (auto) .......................................................................... 33
Fig. 32 – Restart timings (manual) ............................................................................ 34
Fig. 33 – Restart connection (manual) ...................................................................... 34
Fig. 34 – Test timings ............................................................................................... 35
Fig. 35 – Reset timings ............................................................................................. 36
Fig. 36 – EDM timings .............................................................................................. 37
Fig. 37 – EDM connection ........................................................................................ 37
Fig. 38 – Reduction Range ....................................................................................... 38
Fig. 39 – Examples of muting application ................................................................. 40
Fig. 40 – Typical Muting Application ......................................................................... 41
Fig. 41 – T muting timings ........................................................................................ 42
Fig. 42 – T muting connection .................................................................................. 43
Fig. 43 – L muting timings......................................................................................... 43
Fig. 44 – L muting connection ................................................................................... 44
Fig. 45 – Muting timeout ........................................................................................... 45
Fig. 46 – Muting filter disabled .................................................................................. 46
Fig. 47 – Muting filter enabled .................................................................................. 46
Fig. 48 – Override connection ................................................................................... 48
Fig. 49 – Override timings (level trigger) ................................................................... 49
vii
Fig. 50 – Override timings (edge trigger) .................................................................. 49
Fig. 51 – Override timeout timings ............................................................................ 50
Fig. 52 – Override restart connection ....................................................................... 51
Fig. 53 – Override restart timings (auto) ................................................................... 52
Fig. 54 – Override restart timings (normal) ............................................................... 53
FIG. 55 – PNP CONNECTION ........................................................................................ 63
Fig. 56 – PNP timings ............................................................................................... 63
FIG. 57 – NPN CONNECTION ........................................................................................ 64
Fig. 58 – NPN timings ............................................................................................... 64
Fig. 59 – No code ..................................................................................................... 65
Fig. 60 – Code 1 and code 2 .................................................................................... 65
viii
GENERAL VIEW
SG4 EXTENDED
LED DESCRIPTION
The microprocessor guarantees the check and the management of the beams that are sent
and received through the units: the microprocessor – through some LEDs – informs the
operator about the general conditions of the safety light curtain, both for settings and for
diagnostics (see chapter 6 and 8).
GENERAL INFORMATION
1
1
1 GENERAL INFORMATION
1.1 GENERAL DESCRIPTION
1.1.1 General Description of the safety light curtains
The safety light curtains of the SG4 series are optoelectronic multibeam 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
moving parts.
The light curtains of the SG4 series are Type 4 intrinsic safety systems used as accidentprevention protection devices and are manufactured in accordance with the international
Standards in force for safety, in particular:
EN 61496-1/AC: 2010 Safety of machinery: electrosensitive protective equipment.
Part 1: General prescriptions and tests.
IEC 61496-2: 2006 Safety of machinery: electrosensitive protective equipment -
Particular requirements for equipment using active optoelectronic
protective devices.
EN ISO 13849-1: 2008 (Cat.4, PL e) Safety of machinery. Safety-related parts of control
systems.
Part 1: General principles for design
EN 61508-1: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 1: General requirements
EN 61508-2: 2000 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 2: Requirements for electrical/electronic/programmable electronic
safety-related systems
EN 61508-3: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 3: Software requirements
EN 61508-4: 1998 (SIL 3) Functional safety of electrical/electronic/programmable
electronic safety-related systems.
Part 4: Definitions and abbreviations
EN 62061: 2005 (SIL CL3) Safety of machinery. Functional safety of electrical/
electronic/programmable electronic safety-related control systems.
The device, consisting of one emitter and one receiver housed inside strong aluminium
profiles, generates infrared beams that detect any opaque object positioned within the light
curtain detection field. The emitter and the receiver are equipped with the command and
control functions. The connections are made through a M12 connector located in the lower
side of the profile. The synchronisation between the emitter and the receiver takes place
optically, i.e. no electrical connection between the two units is required. The microprocessor
guarantees the check and the management of the beams that are sent and received through
the units: the microprocessor – through some LEDs – informs the operator about the general
conditions of the safety light curtain (see chapter 8 “Diagnostic”).
SG4 EXTENDED INSTRUCTION MANUAL
2
1
The device consists in 2 units that, according to the model, are composed by one or several
emitting and receiving modules. The receiver is the main controller for all functions. It
monitors all safety actions in case of failure and performs general functions as well.
During installation, an user interface facilitates the alignment of both units (see chapter 5
“Alignment procedure”).
As soon as an object, a limb or the operator’s body accidentally interrupts one or some of the
infrared beams sent by the emitter, the receiver immediately opens the OSSD outputs and
blocks the MPCE machine (if correctly connected to the OSSD).
Some parts or sections of this manual containing important information for the user or
installing operator are preceded by a note:
The information provided in the paragraphs following this symbol is
very important for safety and may prevent accidents.
Always read this information accurately and carefully follow the advice
to the letter.
GUI
The paragraphs containing descriptions reported on the GUI too are
written with this character.
This manual contains all the information necessary for the selection and operation of the
safety devices.
However, specialised 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 Datalogic Technical Service for any necessary information relative to the
functioning of the SG light curtains and the safety rules that regulate the correct installation
(see chapter 9).
GENERAL INFORMATION
3
1
1.1.2 Package Contents
Package contains the following objects:
Receiver (RX)
Emitter (TX)
Installation Quick Guide of SG4 EXTENDED curtain
Biannual checklist and periodical maintenance schedule
CD with instruction manual and other documents
4 angled fixing brackets and specific fasteners
2 additional angled fixing brackets for models with heights included between 1200
and 1800 mm
1.2 NEW FEATURES COMPARED TO SG4 BASE
With respect to SG4 BASE series, safety light curtains of SG4 EXTENDED series have some
new important features:
Higher operating distance
New profile compatible with SE accessories
Advanced alignment function for receiver and transmitter units
Muting function
Partial muting
Selectable muting timeout
Override
Override status
Blanking function (fixed and floating)
Teach-in
Tolerance
Reduction Range
Null dead zone (the controlled height of the light curtain is equivalent to the light
curtain’s height)
Basic configuration with push-buttons (BCM)
Advanced configuration with Grafic User Interface (ACM)
Ethernet connection to pc
PNP/NPN
Coding
Cascade
Possibility of copying the setting of one light curtain and saving it into other light
curtains
Possibility of having a log report about the configuration
SG4 EXTENDED INSTRUCTION MANUAL
4
1
1.3 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.
1.3.1 Resolution
The resolution of the device is the minimum dimension that an opaque object must have in
order to obscure at least one of the beams that constitute the sensitive area.
The resolution strictly depends on the part of the body to be protected.
R =14mm finger protection
Type 4
R = 30 mm hand protection
Type 4
As shown in Fig. 1, the resolution only depends on the geometrical characteristics of the
lenses, diameter and distance between centres, and is independent of any environmental
and operating conditions of the safety light curtain.
Operating Distance
opaque
object
R
d
I
Fig. 1 – Resolution
The resolution value is obtained applying the following formula:
R = I + d
where:
I = Distance between two adjacent optics
d = Lens diameter
GENERAL INFORMATION
5
1
1.3.2 Controlled height
The controlled height is the height protected by the safety light curtain
Fig. 2 – Controlled height
The height controlled by the SG4 EXTENDED is the whole height of the light curtain.
Referring to the figure above the protected height is reported in the table here below.
Model Protected height (mm)
SG4-xx-030-OO-P
300
SG4-xx-045-OO-P
450
SG4-xx-060-OO-P
600
SG4-xx-075-OO-P
750
SG4-xx-090-OO-P
900
SG4-xx-105-OO-P
1050
SG4-xx-120-OO-P
1200
SG4-xx-135-OO-P
1350
SG4-xx-150-OO-P
1500
SG4-xx-165-OO-P
1650
SG4-xx-180-OO-P
1800
xx = Resolution (14mm - 30mm)
SG4 EXTENDED INSTRUCTION MANUAL
6
1
1.3.3 Minimum installation distance
The safety device must be positioned at a specific safety distance (Fig. 3).
This distance must ensure that the dangerous area cannot be reached before the dangerous
motion of the machine has been stopped by the ESPE.
The safety distance depends on 4 factors, according to the EN ISO 13855 Standard (which
replaces EN999):
Response time of the ESPE (the time between the effective beam interruption and the
opening of the OSSD contacts)
Machine stopping time (the time between the effective opening of the contacts of the
ESPE and the real stop of the dangerous motion of the machine)
ESPE resolution
Approaching speed of the object to be detected
Fig. 3 – Minimum installation distance (vertical)
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/sec
t1 = Response time of the ESPE in seconds (see chapter 11)
t2 = Machine stopping time in seconds
d = Resolution of the system
C = Additional distance based on the possibility to insert the body or one of body parts inside the
dangerous area before the protective device trips.
C = 8 (d -14) for devices with resolution ≤ 40 mm
C = 850 mm for devices with resolution > 40 mm
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
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).
If the safety light curtain must be mounted in a horizontal position (Fig. 4), 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
GENERAL INFORMATION
7
1
where:
S = Minimum safety distance in mm.
t1 = Response time of the ESPE in seconds (see chapter 11)
t2 = Machine stopping time in seconds.
H = Beam height from ground; this height must always be less than 1,000 mm.
Fig. 4 – Minimum installation distance (horizontal)
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 following
formula is used:
S = K*T + C
where:
T = t1 + t2
t
1
= ESPE response time + SE-SR2 relay release time (max 80 ms)
t
2
= Machine total stopping time.
C = 8 * (d – 14) for devices with resolution <= 40 mm
D = resolution
In all cases, if K = 2000mm/sec then S > 500 mm. Distance will have then to be recalculated
using K = 1600 mm/sec.
WARNING: the reference standard is EN ISO 13855 (replaces EN
999) “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.
SG4 EXTENDED INSTRUCTION MANUAL
8
1
1.4 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: SG4 EXTENDED 14 mm safety light
curtain is especially suitable for this kind of
application, which requires the installation of the
device directly on the machine.
Benefits: 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 SG4
EXTENDED safety light curtain is darkened
while the press is moving down, the mobile
tool bar will stop.
Benefits: 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, SG4 EXTENDED ensures increased plant productivity as
it reduces the dead times necessary for machine accessing, adjustment and maintenance.
Example 3: Paper cutting machines
These machines typically cut paper to a specific size for newspapers or special applications.
The operator must be protected against abrasion or cuts by cutter blades.
Solution: SG4 EXTENDED safety light
curtain is especially suitable for this kind
of application, which require the
installation of the device directly on the
machine.
Benefits: Highly reduced profile and the
two side slots ensure installation
flexibility for machine dimensions.
GENERAL INFORMATION
9
1
Example 4: Milling machines
A milling machine is a machine tool used for
the shaping of metals and other solid
materials. Operator hands and body must be
protected from being dragged, entangled or
cut by the tool / spindle.
Solution: SG4 EXTENDED series safety
light curtain is the best solution considering
the required safety levels and application
type. When even just one of the light curtain
beams is interrupted, the machine is immediately stopped.
Benefits: Highly reduced profile size guarantees installation flexibility for machine
dimensions.
1.5 SAFETY INFORMATIONS
For a correct and safe use of the safety light curtains of the SG4
series, the following points must be observed:
The stopping system of the machine must be electrically controlled
This control system must be able to stop the dangerous movement of the machine
within the total machine stopping time T as reported in par. 1.3.3 and during all
working cycle phases
Mounting and connection of the safety light curtain must be carried out by qualified
personnel only, according to the indications included in the special sections (see
chapters 2, 3, 4, 5) and in the applicable standards
The safety light curtain must be securely placed in a particular position so that access
to the dangerous zone is not possible without the interruption of the beams (see
chapters 2, 3)
The personnel operating in the dangerous area must be well trained and must have
adequate knowledge of all the operating procedures of the safety light curtain
The TEST button must be located outside the protected area because the operator
must check the protected area during all Test and Reset operations
Please carefully read the instructions for the correct functioning before powering the light
curtain.
SG4 EXTENDED INSTRUCTION MANUAL
10
2
2 INSTALLATION
2.1 PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND
INSTALLATION
Make sure that the protection level assured by the SG4 device
(Type 4) is compatible with the real danger level of the machine
to be controlled, according to EN ISO 13849-1 or EN 62061.
Use only matched pair with same serial no.
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
resolution level of the device
The ESPE must be installed in a room complying with the technical characteristics
indicated in chapter 11.
Do not install anything close to strong and/or flashing light sources or close to similar
devices
The presence of intense electromagnetic disturbances could affect device’s correct
operation. This condition shall be carefully assessed by seeking the advice of
Datalogic 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 so jeopardise functioning.
INSTALLATION
11
2
2.2 GENERAL INFORMATION ON DEVICE POSITIONING
The safety light curtain should be carefully positioned, in order to reach a very high protection
standard; access to the dangerous area must only be possible by passing through the
protecting safety light beams.
Fig. 5 shows some examples of possible access to the machine from
the top and the bottom sides. These situations may be very
dangerous and so the installation of the safety light curtain at a
sufficient height in order to completely cover the access to the
dangerous area (Fig. 6) becomes necessary.
Fig. 5 – Incorrect device positioning
Fig. 6 – Correct device positioning
Under standard operating conditions, machine starting must not be possible while operators
are inside the dangerous area.
When the installation of the safety light curtain very near to the dangerous area is not
possible, a second light curtain must be mounted in a horizontal position in order to prevent
any lateral access, as shown in Fig. 8.
If the operator is able to enter in the dangerous area, an additional
mechanical protection must be mounted to prevent the access.
NO
YES
SG4 EXTENDED INSTRUCTION MANUAL
12
2
Fig. 7
Fig. 8
2.2.1 Minimum distance from reflecting surfaces
Reflecting surfaces placed near the light beams of the safety device (over, under or laterally)
can cause passive reflections. These reflections can affect the recognition of an object inside
the controlled area. Moreover, if the RX receiver detects a secondary beam (reflected by the
side-reflecting surface) the object might not be detected, even if the object interrupts the
main beam.
DANGEROUS AREA
Reflecting surface
Reflecting surface
Fig. 9 – Minimum distance from reflecting surfaces
It is important to position the safety light curtain according to the minimum distance
from reflecting surfaces.
NO
YES
INSTALLATION
13
2
The minimum distance depends on:
operating distance between emitter (TX) and receiver (RX);
real aperture angle of ESPE (EAA); especially:
for ESPE type 4 EAA = 5° ( = ± 2,5°)
Diagram of Fig. 10 shows the minimum distance from the reflecting surface (Dsr), based on
the operating distance:
Fig. 10
The formula to get Dsr is the following:
Dsr (m) = 0.15 for operative distances < 3 m
Dsr (m) = 0.5 x operating distance (m) x tg 2 for operative distances 3 m
2.2.2 Distance between homologous devices
If different safety devices have to be installed in adjacent areas, the emitter of one device
must not interfere dangerously with the receiver of the other device.
The TXB interfering device must be positioned outside a minimum Ddo distance from the
TXA – RXA emitter-receiver couple axis.
Fig. 11 – Distance between homologous devices
This minimum Ddo distance depends on:
the operating distance between emitter (TXA) and receiver (RXA)
the effective aperture angle of the ESPE (EAA)
ESPE
Type 4
SG4 EXTENDED INSTRUCTION MANUAL
14
2
The following graphic shows the distance from the interfering devices (D
do
) according to the
operating distance (D
op
) of the couple ( TXA – RXA ).
Fig. 12
The following table shows, for convenience, the values of the minimum installation distances
relative to some operating distances:
Operating distance
(m)
Minimum installation distance
(m)
3 0,3
6 0,4
10 0,5
19 0,6
WARNING: the interfering device (TXB) must be positioned at the
same Ddo distance, calculated as shown above, even if closer to
TXA respect to RXA.
When several safety devices have to be installed in adjacent areas, the interference between
the emitter of one device and the receiver of the other must be avoided.
INSTALLATION
15
2
Fig. 13 provides an example of possible interference between different devices and two
possible solutions.
TX RX TX RX
RX TX TX RX
TX RX TX RX
opaque surface
Fig. 13 – Interference between adjacent light curtains
If two light curtains have to be mounted near each other as reported in the first example of
Fig. 13, coding function can resolve this situation (refer to par. 7.12)
NO
YES
YES
SG4 EXTENDED INSTRUCTION MANUAL
16
2
2.2.3 Emitter and Receiver Orientation
The two units shall be assembled parallel each other, with the beams arranged at right
angles with the emission and receiving surface, and with the connectors pointing to the same
direction.
The configurations shown in Fig. 14 must be avoided:
Fig. 14 – Light curtains orientation
2.2.4 Use of deviating mirrors
The control of any dangerous area, with several but adjacent access sides, is possible using
only one safety device and well-positioned deviating mirrors.
Fig. 15 shows a possible solution to control three different access sides, using two mirrors
placed at 45° with respect to the beams.
Fig. 15 – Use of deviating mirrors
The operator must respect the following precautions when using the deviating mirrors:
The alignment of the emitter and the receiver can be a very critical operation when
deviating mirrors are used. Even very small displacements of the mirror is enough to
lose alignment. The use of Datalogic laser pointer accessory is recommended under
these conditions
The minimum safety distance (S) must be respected for each single section of the
beams.
The effective operating range decreases by about 15% by using only one deviating
mirror, the percentage further decreases by using 2 or more mirrors (for more details
refer to the technical specifications of the mirrors used).
NONO
INSTALLATION
17
2
The following table shows the operating distances relating to the number of mirrors used.
Do not use more than three mirrors for each device.
The presence of dust or dirt on the reflecting surface of the mirror causes a drastic
reduction in the range.
2.2.5 Checks after first installation
The control operations to carry-out after the first installation and before machine start-up are
listed hereinafter. The controls must be carried-out by qualified personnel, either directly or
under the strict supervision of the person in charge of machinery Safety.
Check that:
ESPE remains in SAFE state intercepting the beams along the protected area using
the specific test piece (TP-14 or TP-30), following the Fig. 16 scheme.
Fig. 16 – Path of the test piece
number of mirrors operating distance
(30 mm)
operating distance
(14 mm)
0 20 m 7 m
1 16,5 m 5,1 m
2 13,7 m 4,3 m
3 11,6 m 3,7 m
SG4 EXTENDED INSTRUCTION MANUAL
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ESPE has to be correctly aligned, press slightly on the product side in both directions
the red LED must not turn on
The activation of the TEST function (on TX side) causes the opening of the OSSD
outputs (red LED, OSSD on RX side, ON and controlled machine stop)
The response time at machine STOP, including the ESPE and machine response
times, must be included in the limits defined in the calculation of the safety distance
(refer to chapter 2)
The safety distance between the dangerous parts and ESPE must comply with the
requirements indicated in chapter 2
A person must not access or remain between ESPE and the dangerous parts of the
machine
Access to the dangerous areas of the machine must not be possible from any
unprotected area
ESPE must not be disturbed by external light sources, ensuring that it remains in
NORMAL OPERATION condition for at least 10-15 minutes and, placing the specific
test piece in the protected area, in the SAFE state for the same period
Verify the correspondence of all the accessory functions, activating them in the
different operating conditions
MECHANICAL MOUNTING
19
3
3 MECHANICAL MOUNTING
The emitting (TX) and receiving (RX) units must be installed with the relevant sensitive
surfaces facing each other. The connectors must be positioned on the same side and the
distance must be included within the operating range of the model used (see chapter 11).
The two units must be positioned the most aligned and parallel possible.
The next step is the fine alignment, as shown in chapter 5.
Outfit angled fixing brackets kit, for units mounting, must be used as described below (Fig.
17).
Adjustable supports for adjusting unit inclinations around the axes are available on request
(see chapter 15).
To mount the angled fixing brackets kit, place the threaded pins metallic insert into the
dedicated side seat of the terminator cap side light curtain closing cap; slide the insert
towards the metallic drawn profile groove. Fix the bracket against the profile by tightening the
M5 hexagonal nuts. It’s possible to slide the bracket group along their dedicated rail and fix it
once again just working on the above mentioned nuts.
Fig. 17 – Fixed brackets mounting procedure
In case of applications with particularly strong vibrations, vibration dampers, together with
mounting brackets, are recommended to reduce the impact of the vibrations.
Fig. 18 – Anti-vibration dampers
The recommended mounting positions according to the light curtain length are shown in Fig.
19 and in the following table.
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3
Fig. 19 – Light curtain dimensions
MODELS L (mm)
A
(mm) B (mm) C (mm)
SG4-xx-030-OO-P
306.3 86.3 110 -
SG4-xx-045-OO-P
456.3 236.3 110 -
SG4-xx-060-OO-P
606.2 306.2 150 -
SG4-xx-075-OO-P
756.2 406.2 175 -
SG4-xx-090-OO-P
906.1 506.1 200 -
SG4-xx-105-OO-P
1056.1 606.1 225 -
SG4-xx-120-OO-P
1206 966 150 453
SG4-xx-135-OO-P
1356 1066 175 503
SG4-xx-150-OO-P
1505.9 1166 200 553
SG4-xx-165-OO-P
1655.9 1266 225 603
SG4-xx-180-OO-P
1805.8 1366 250 652.9
xx = Resolution (14mm - 30mm)
ELECTRICAL CONNECTIONS
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4
4 ELECTRICAL CONNECTIONS
All electrical connections to the emitting and receiving units are made through some
particular cables; these cables are composed of a rectangular 18 pin connector on light
curtain side and M12 male connector(s) on the other side.
The Muting cable allows to have on the receiving unit one M12 12-pole connector and one
M12 5-pole connector.
The Blanking cable allows to have on the receiving unit one M12 12-pole connector.
The emitting unit has one M12 5-pole connector (both in Muting and Blanking mode).
The cables have to be connected on the bottom side of the light curtains (leds and push
button side) by removing the white cap that is present.
Take care that the terminator cap (CVL-5196, see chapter 14) is connected on the top side of
the light curtains. If this connection misses, Master and Slave units go in critical
Communication failure.
N.B.: since the RX connections are different for M12 12-poles of muting cable and M12
12-poles of blanking cable, it’s important to use the correct cable for each
configuration (connector with two M12 with the muting configuration and connector
with one M12 with the blanking configuration)
PIG-TAIL CABLE MUTING CONFIGURATION FOR RECEIVER
(CS-R1-75-B-002)
M12 12 pin:
1. 24V (brown)
2. 0V (blue)
3. RESET/RESTART/ALIGN (white)
4. OVERRIDE1 (green)
5. OSSD2 (pink)
6. EDM (yellow)
7. MUTING DISABLE (black)
8. OSSD1 (grey)
9. OVERRIDE2 (red)
10. MUTING LAMP (violet)
11. OVERRIDE STATUS (grey-pink)
12. EARTH (red-blue)
M12 5 pin:
1. 24V (brown)
2. MUTING2 (white)
3. 0V (blue)
4. MUTING1 (black)
5. N.C. (grey)
SG4 EXTENDED INSTRUCTION MANUAL
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4
PIG-TAIL CABLE BLANKING CONFIGURATION FOR RECEIVER
(CS-G1-70-B-002)
M12 12 pin:
1. 24V (brown)
2. 0V (blue)
3. RESET/RESTART/ALIGN (white)
4. TEACH IN (green)
5. OSSD2 (pink)
6. EDM (yellow)
7. N.C. (black)
8. OSSD1 (grey)
9. TOLERANCE (red)
10. LAMP (violet)
11. N.C. (grey-pink)
12. EARTH (red-blue)
PIG-TAIL CABLE FOR EMITTER (CS-G1-50-B-002)
M12 5 pin:
1. 24V (brown)
2. TEST (white)
3. 0V (blue)
4. EARTH (black)
5. NOT USED (grey)
M12 Connectors pinout
12 pin 5 pin
MUTING CONFIGURATION
LINE
LAYOUT
CONNECTION
BEHAVIOUR
RESET active on high level in failure lockout
RESTART active on high level at runtime
ALIGNMENT active on high level at startup
OVERRIDE 1 active on high level at runtime
OVERRIDE 2 active on low level at runtime
EDM
SEE PAR. 7.4 FOR
CONNECTIONS
must be ossds antivalent at runtime with edm
enabled
MUTING DISABLE muting disabled on high level at runtime
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