Datalogic SG4-14-015-OO-E, SG4-30-045-OO-E, SG4-30-030-OO-E, SG4-14-045-OO-E, SG4-14-060-OO-E Instruction Manual

Datalogic S.r.l.
Via S. Vitalino 13
40012 Calderara di Reno
Italy

“SG4 BASE” Instruction Manual
Ed.: 07/2017 Rev.B

ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)

© 2012 – 2017 Datalogic S.p.A. and/or its affiliates  ALL RIGHTS RESERVED.  Without limiting the rights
under copyright, no part of this documentation may be reproduced, stored in or introduced into a retrieval
system, or transmitted in any form or by any means, or for any purpose, without the express written
permission of Datalogic S.p.A. and/or its affiliates.

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 other trademarks and brands are property 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.

CE COMPLIANCE

CE marking states the compliance of the product with essential requirements listed in the applicable
European directive. Since the directives and applicable standards are subject to continuous updates, and
since Datalogic promptly adopts these updates, therefore the EU declaration of conformity is a living
document. The EU declaration of conformity is available for competent authorities and customers through
Datalogic commercial reference contacts. Since April 20th, 2016 the main European directives applicable to
Datalogic products require inclusion of an adequate analysis and assessment of the risk(s). This evaluation
was carried out in relation to the applicable points of the standards listed in the Declaration of Conformity.
Datalogic products are mainly designed for integration purposes into more complex systems. For this reason
it is under the responsibility of the system integrator to do a new risk assessment regarding the final
installation.

Warning

This is a Class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.

SG4 BASE

5/74

1 GENERAL INFORMATION ........................................................................................................ 7

1.1 General description ..................................................................................................................... 7

1.2 Package contents ....................................................................................................................... 8

1.3 New features compared to SE4-PLUS (EDM) ............................................................................ 9

1.4 How to choose the device ......................................................................................................... 10

1.4.1 Detection capability ................................................................................................................... 10

1.4.2 Height of the detection zone ..................................................................................................... 11

1.4.3 Minimum installation distance ................................................................................................... 12

1.5 Typical applications ................................................................................................................... 14

1.6 Safety information ..................................................................................................................... 16

2 INSTALLATION ........................................................................................................................ 17

2.1 Precautions to be observed for the choice and installation ...................................................... 17

2.2 General information on device positioning ................................................................................ 18

2.2.1 Minimum distance from reflecting surfaces .............................................................................. 19

2.2.2 Distance between homologous devices ................................................................................... 21

2.2.3 Emitter and Receiver Orientation .............................................................................................. 23

2.2.4 Use of deviating mirrors ............................................................................................................ 24

2.2.5 Controls after first installation.................................................................................................... 25

3 MECHANICAL MOUNTING ..................................................................................................... 26

4 ELECTRICAL CONNECTIONS................................................................................................ 28

4.1 Pin-out and configuration pin connection .................................................................................. 28

4.1.1 MODELS SG4-xx-xxx-OO-X ..................................................................................................... 28

4.1.2 MODELS SG4-xx-xxx-OO-E ..................................................................................................... 29

4.2 Notes on connections ............................................................................................................... 31

4.3 Earth connection ....................................................................................................................... 33

5 ALIGNMENT PROCEDURE ..................................................................................................... 34

5.1 Correct alignment procedure .................................................................................................... 35

6 FUNCTIONS SETTING ............................................................................................................ 37

6.1 Reset mode ............................................................................................................................... 37

7 FUNCTIONS ............................................................................................................................. 38

7.1 Test ........................................................................................................................................... 38

7.2 Reset ......................................................................................................................................... 39

7.3 EDM .......................................................................................................................................... 40

7.4 Alignment aid function ............................................................................................................... 41

8 USER INTERFACE AND DIAGNOSTICS ............................................................................... 42

8.1 User interface ............................................................................................................................ 42

8.2 Diagnostic messages ................................................................................................................ 43

9 PERIODICAL CHECKS ............................................................................................................ 46

9.1 General information and useful data ......................................................................................... 47

9.2 Warranty .................................................................................................................................... 47

10 DEVICE MAINTENANCE ......................................................................................................... 48

10.1 Product disposal ....................................................................................................................... 48

11 TECHNICAL DATA .................................................................................................................. 49

12 AVAILABLE MODELS ............................................................................................................. 50

13 OVERALL DIMENSIONS ......................................................................................................... 52

14 INCLUDED ACCESSORIES .................................................................................................... 53

SG4 BASE

6/74

15 ACCESSORIES ........................................................................................................................ 54

15.1 (ST-KSTD) Metal angled fixing bracket .................................................................................... 54

15.2 (ST-KPxMP) Plastic angled fixing bracket ................................................................................ 56

15.3 (ST-K4ROT) Metal rotating fixing bracket ................................................................................. 58

15.4 (SG-PSB) Protective stands ..................................................................................................... 59

15.5 (SG-P) Plate kit for protective stands ....................................................................................... 60

15.6 (SE-S) Columns and floor stands ............................................................................................. 61

15.7 (SG-DM) Deviating mirrors ....................................................................................................... 62

15.8 (SG-IP69K) PMMA protection tubes ......................................................................................... 64

15.9 (SG-LS) PMMA lens shield ....................................................................................................... 65

15.10 (TP) Test piece ......................................................................................................................... 66

15.11 Connection cables .................................................................................................................... 67

15.12 (SG-LP) Laser pointer ............................................................................................................... 68

15.13 (SE-SR2) Safety relay ............................................................................................................... 69

15.14 (CSME-03VU24-Y14) EDM relay box ....................................................................................... 69

16 GLOSSARY .............................................................................................................................. 70

SG4 BASE

7/74

NORM

DESCRIPTION

EN 61496-1: 2013

Safety of machinery: electrosensitive protective equipment.
Part 1: General prescriptions and tests.

EN 61496-2: 2013

Safety of machinery: electrosensitive protective equipment - Particular requirements
for equipment using active optoelectronic protective 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 electronic safety­related 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/programmable
electronic safety-related control systems.

1 GENERAL INFORMATION

1.1 GENERAL DESCRIPTION

The safety light curtains 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 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:

The device, consisting of one emitter and one receiver contained inside 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 one or more connectors as specified in cfr.ELECTRICAL CONNECTIONS

page 27.
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 (cfr.USER INTERFACE AND DIAGNOSTICS page 42).

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 (cfr.ALIGNMENT PROCEDURE page

33).

As soon as an object, or 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 or trigger Safety State over connected
safety Fieldbus.

SG4 BASE

8/74

Notes and detailed descriptions about particular characteristics of the safety devices in
order to better explain their functioning. Special instructions regarding the installation
process.

Some parts or sections of this manual containing important information for the user or installing operator are
preceded by a note:

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 light curtains and the
safety rules that regulate the correct installation (cfr. USER INTERFACE AND DIAGNOSTICS page 42).

1.2 PACKAGE CONTENTS

Package contains the following objects:

 Receiver (RX)
 Emitter (TX)
 Quick Guide of safety light curtain
 Periodical checklist and maintenance schedule
 Mini-DVD 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

SG4 BASE

9/74

1.3 NEW FEATURES COMPARED TO SE4-PLUS (EDM)

With respect to SE4-PLUS (EDM) series, the SG4 BASE safety light curtain series presents new important
features:

 Higher operating distance
 Shorter response time (see cfr.TECHNICAL DATA page 49)
 Range enlargement with 150 to 1800 mm controlled heights
 New profile compatible with SE accessories
 New fastening system with rotating brackets
 TEST line with reversed activation logics (active high)
 Advanced alignment for receiver and transmitter units

Furthermore, SG4 BASE has 2 selectable functions, i.e.:

 EDM function
 Manual/automatic Restart

SG4 BASE

10/74

R=14 mm

Finger protection

R=30 mm

Hand protection

Fig 1 - Detection capability

1.4 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.

1.4.1 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 Fig 1 - page 10, 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.

The resolution value is obtained applying the following formula:

where:
I=Interaxes between two adjacent optics
d=Lens diameter

R = I + d

SG4 BASE

11/74

Fig 2 - Detection Zone

Model 14mm

Model 30mm

Controlled height

Hp (mm)

SG4-14-015-OO-E/X

SG4-30-015-OO-E/X

150

SG4-14-030-OO-E/X

SG4-30-030-OO-E/X

300

SG4-14-045-OO-E/X

SG4-30-045-OO-E/X

450

SG4-14-060-OO-E/X

SG4-30-060-OO-E/X

600

SG4-14-075-OO-E/X

SG4-30-075-OO-E/X

750

SG4-14-090-OO-E/X

SG4-30-090-OO-E/X

900

SG4-14-105-OO-E/X

SG4-30-105-OO-E/X

1050

SG4-14-120-OO-E/X

SG4-30-120-OO-E/X

1200

SG4-14-135-OO-E/X

SG4-30-135-OO-E/X

1350

SG4-14-150-OO-E/X

SG4-30-150-OO-E/X

1500

SG4-14-165-OO-E/X

SG4-30-165-OO-E/X

1650

SG4-14-180-OO-E/X

SG4-30-180-OO-E/X

1800

1.4.2 Height of the detection zone

The controlled height is the height protected by the safety light curtain.

SG4 BASE

12/74

Fig 3 - Installation distance (vertical positioning)

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 cfr.TECHNICAL DATA page 49)

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 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

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

1.4.3 Minimum installation distance

The safety device must be positioned at a specific safety distance (Fig 3 - page 12).
This distance must ensure that the dangerous area cannot be reached before the dangerous 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

The following formula is used for the calculation of the safety distance:

S = K (t1 + t2) + C

where:

SG4 BASE

13/74

S =

Minimum safety distance in mm.

t1

=

Response time of the ESPE in seconds (cfr. TECHNICAL DATA page 49)

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.

Fig 4 - Installation distance (horizontal positioning)

S =

Minimum safety distance in mm.

t1 = ESPE response time

t2 = Machine total stopping time (Including 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

SG4-14-060-OO-E/X

SG4-30-030-OO-E/X

T

0.393 sec

0.394 sec

C

0 mm

128 mm

S

641.6 mm

758.4 mm

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.

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 - page 13) 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:

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:

In all cases, if K = 2000mm/sec then S will be > 500 mm.
Distance will have then to be recalculated using K = 1600 mm/sec.

SG4 BASE

14/74

Fig 5 - Operating point protection on drilling machines

Fig 6 - Bending presses

1.5 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: SG 14mm safety light curtain is especially suitable for this kind of application, 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 moving 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, SG ensures increased plant productivity as it reduces the dead times
necessary for machine accessing, adjustment and maintenance.

SG4 BASE

15/74

Fig 7 - Paper cutting machines

Fig 8 - Milling machines

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: SG 30mm safety light curtain is especially suitable for this kind of application, which require the
installation of the device directly on the machine.

Advantages: Highly reduced profile and the two side slots ensure installation flexibility for machine dimensions.

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: SG 30mm 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.

Advantages: Highly reduced profile size guarantees installation flexibility for machine dimensions.

SG4 BASE

16/74

For a correct and safe use of the safety light curtains, the following points must be
observed:

Please carefully read the instructions for the correct functioning before powering the
light curtain on.

1.6 SAFETY INFORMATION

 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 per paragraph Minimum installation distance page 12 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 (refer to sections INSTALLATION page 17, MECHANICAL
MOUNTING page 26, ELECTRICAL CONNECTIONS page 27, ALIGNMENT PROCEDURE page 33) 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 (refer section INSTALLATION page 17).

 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.

Only for models SG4-xx-xxx-OO-E:

 The TEST button must be located outside the protected area because the operator must check the protected

area during all Test operation.

 The RESET/RESTART button must be located outside the protected area because the operator must check

the protected area during all Reset/Restart operations.

SG4 BASE

17/74

Make sure that the protection level assured by the light curtain device is compatible
with the real danger level of the machine to be controlled, according to EN ISO 13849-1:
2015 or EN 62061:2005/A2: 2015.

2 INSTALLATION

2.1 PRECAUTIONS TO BE OBSERVED FOR THE CHOICE AND INSTALLATION

 Use only matched emitter and receiver pairs 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 an environment complying with the characteristics indicated in TECHNICAL

DATA page 49.

 The ESPE must not be installed close to strong and/or flashing light sources, in particular close to the front

window of receiving unit.

 The presence of intense electromagnetic disturbances could affect device’s correct operation.
 This condition shall be carefully assessed with 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 thus jeopardize correct operation.

SG4 BASE

18/74

Fig 9 - Wrong light curtain positioning

Fig 10 - Correct light curtain positioning

Fig 11 - Wrong light curtain positioning

Fig 12 - Correct light curtain positioning

Fig 9 - page 18 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 sufficient height in order to completely cover the access to
the dangerous area (Fig 10 - page 18) becomes necessary.

If the operator is able to enter in the dangerous area, an additional mechanical
protection must be mounted to prevent the access.

2.2 GENERAL INFORMATION ON DEVICE POSITIONING

The safety light curtain should be carefully positioned in order to provide the necessary protection. Access to the
dangerous area must only be possible by passing through the protecting safety light beams.

Under standard operating conditions, machine starting must not be possible while operators are inside the
dangerous area.

Where it is not possible to install safety light curtain very near to the dangerous zone, a second light curtain must
be mounted in a horizontal position in order to prevent any lateral access, as shown in Fig 12 - page 18.

SG4 BASE

19/74

Fig 13 - Distance from reflecting surfaces

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.

It is important to position the safety light curtain according to the minimum distance from reflecting surfaces.
The minimum distance depends on:

 operating distance between emitter (TX) and receiver (RX);
 real aperture angle of ESPE (EAA); especially:

SG4 BASE

20/74

Fig 14 - Minimum distance from reflective surface

for ESPE Type 4 EAA = 5° (α = ± 2.5°)

The formula to get Dsr is the following:
For ESPE Type 4:
Dsr (m) = 0.13 for operating distance < 3 m
Dsr (m) = 0.5 x operating distance (m) x tg 2a for operating distance >= 3 m

SG4 BASE

21/74

Fig 15 - Distance between homologous devices

Fig 16 - ESPE Type4

Operating distance (m)

Minimum installation distance (m)

3

0,3 6 0,4

10

0,5

19

0,6

The interfering device (TXB) must be positioned at the same Ddo distance, calculated as
shown above, even if closer to TXA respect to RXA.
Installation precautions have to be taken to avoid interference between homologous
devices. A typical situation is represented by the installation areas of several adjacent
safety devices aligned one next to the other, for example in plants with different
machines.

2.2.2 Distance between homologous devices

The following graphic shows the distance from the interfering devices (Ddo) according to the operating distance
(Ddo) of the couple ( TXA – RXA ).

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 emitter­receiver couple axis.

This minimum Ddo distance depends on:

 the operating distance between emitter (TXA) and receiver (RXA)
 the effective aperture angle of the ESPE (EAA)

The following table shows, for convenience, the values of the minimum installation distances relative to some
operating distances:

SG4 BASE

22/74

Fig 17 - Recommended positioning for homologous devices

If two light curtains have to be mounted near each other as reported in the first example
of Fig 17 - page 22.

The figure provides two examples:

SG4 BASE

23/74

Fig 18 - Wrong light curtain TX-RX orientations

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 the figure must be avoided:

SG4 BASE

24/74

Fig 19 - Use of deviating mirrors

Number of mirrors

Operating Distance (14mm)

Operating Distance (30mm)

0

6.0 m

19 m

1

4.8 m

15.2 m

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.

The figure shows a possible solution to control two different access sides, using one mirror placed at 45° with
respect to the beams.

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 20% by using only one deviating mirror.

The following table shows estimated operating distances relating to the number of mirrors used.

 The presence of dust or dirt on the reflecting surface of the mirror causes a drastic reduction in the range.

SG4 BASE

25/74

Fig 20 - Path of the test piece

Only for SG4-xx-xxx-OO-E models:
The activation of the TEST function causes the opening of the OSSD outputs (red LED

on and controlled machine stop).

2.2.5 Controls 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.

Verify that:
 ESPE remains blocked ( lit RED) intercepting the beams along the protected area using the specific test

piece, following the scheme in Fig 20 - page 25.

TP-14 for light curtains with 14 mm resolution:SG4-14-xx-x
TP-30 for light curtains with 30 mm resolution:SG4-30-xx-x

 ESPE has to be correctly aligned, press slightly on the product side in both directions the red LED must not

turn on .

 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 cfr.INSTALLATION page 17).

 The safety distance between the dangerous parts and ESPE must comply with the requirements indicated in

cfr..INSTALLATION page 17).

 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 operating function for

at least 10-15 minutes and placing the specific test piece in the protected area in the SAFE condition for the
same period.

 Verify the correspondence of all the accessory functions, activating them in the different operating conditions.

SG4 BASE

26/74

Fig 21 - Angle brackets

Fig 22 - Rotating brackets

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 cfr.TECHNICAL DATA page 49).

The two units shall be positioned so as to be aligned and parallel as much as possible.
The next step is the fine alignment, as shown in chapter ALIGNMENT PROCEDURE page 33.

Two types of brackets can be used to fix the two units:
Angled fixing brackets are supplied with all models (Fig 21 - page 26).

Adjustable supports for correcting unit inclination on the axes are available on request (see cfr.ACCESSORIES
page 54).

Rotating brackets (Fig 22 - page 26), available upon request, can be used as an alternative or together with
angled brackets.

For fixing with rotating bracket, refer to Fig 23 - page 27.

SG4 BASE

27/74

Fig 23 - Fixing brackets

Fig 24 - Dimensions (mm)

VERSION

L (mm)

A (mm)

B (mm)

C (mm)

015

216.3

108

54

-

030

366.2

216

75

-

045

516.3

316

100

-

060

666.2

366

150

-

075

816.3

466

175

-

090

966.2

566

200

-

105

1116.2

666

225

-

120

1266.3

966

150

483

135

1416.2

1066

175

533

150

1566.3

1166

200

583

165

1716.3

1266

225

633

180

1866.3

1366

250

683

Anti-vibration shock absorbers together with fixing brackets are recommended in applications with particularly
strong vibrations to reduce the impact of the vibrations.

Fig 23 - page 27 and table below show the recommended mounting positions according to the safety light curtain
length.

SG4 BASE

28/74

Fig 25 - Receiver

1 =

brown

= +24 VDC

2 =

white

= OSSD1

3 =

blue

= 0 V

4 =

black

= OSSD2

5 =

grey

= NOT USED

Fig 26 - Emitter

1 =

brown

= +24 VDC

2 =

white

= NOT USED

3 =

blue

= 0 V

4 =

black

= NOT USED

4 ELECTRICAL CONNECTIONS

4.1 PIN-OUT AND CONFIGURATION PIN CONNECTION

4.1.1 MODELS SG4-xx-xxx-OO-X

All electrical connections to the emitting and receiving units are made through a male M12 connector, located on
the lower part of the two units.

For receiver a M12 5-poles connector is used, while for emitter a M12 4-poles connector is used.

RECEIVER (RX):

EMITTER (TX):

SG4 BASE

29/74

Fig 27 - Receiver

1 =

white

= RESET/RESTART (*)

2 =

brown

= +24 VDC

3 =

green

= EDM SELECTION

4 =

yellow

= EDM

5 =

grey

= OSSD1

6 =

pink

= OSSD2

7 =

blue

= 0 V

8 =

red

= MANUAL/AUTOMATIC RESTART

Fig 28 - Emitter

1 =

brown

= +24 VDC

2 =

white

= TEST

3 =

blue

= 0 V

4 =

black

= NOT USED

4.1.2 MODELS SG4-xx-xxx-OO-E

All electrical connections to the emitting and receiving units are made through a male M12 connector, located on
the lower part of the two units.

For receiver a M12 8-pole connector is used, while for emitter a M12 4-pole connector is used.

RECEIVER (RX):

(*) automatic RESTART --> RESET function
manual RESTART --> RESET / RESTART function

To set manual restart, connect Pin 8 (MAN/AUTO) with Pin 6 (OSSD2).
To set automatic restart, connect Pin 8 (MAN/AUTO) with Pin 5 (OSSD1).
To deactivate EDM function, connect Rx Pin 3 to 24VDC on Receiver.

EMITTER (TX):

SG4 BASE

30/74

Function

Connection to

Status

TEST

+24 VDC

Not connected or 0V

TEST ON

TEST OFF

RESET

+24 VDC

Not connected or 0V

RESET ON

RESET OFF

SELECT RANGE

+24 VDC

Not connected or 0V

SHORT (9 m)
LONG (19 m)

EDM

Normally closed

contact for a force-guided relay

-

ENABLE EDM

+24 VDC

Not connected or 0V

EDM OFF

EDM ON

MAN/AUTO RESTART SELECTION

OSSD1
OSSD2

AUTOMATIC RESTART

MANUAL RESTART

SG4 BASE

31/74

Fig 29 - Connection to SE-SR2 Safety Relais

The TEST button must be located in such a way that the operator can check the
protected area during any test (see cfr.FUNCTION SETTING page 36).

The RESET/RESTART button must be located in such a way that the operator can check
the protected area during any reset operation (see cfr.FUNCTION SETTING page 36).

4.2 NOTES ON CONNECTIONS

For the correct operation of the safety light curtains, the following precautions regarding the electrical connections
have to be respected:

 Do not place connection cables in contact with or near high-voltage cables and/or cable undergoing high

current variations (e.g. motor power supplies, inverters, etc.).

 Do not connect in the same multi-pole cable the OSSD wires of different light curtains.
Only fori SG4-xx-xxx-OO-E models:

 The TEST wire must be connected through a N.O. button to the supply voltage of the ESPE.
 The RESET/RESTART wire must be connected through a N.O. button to the supply voltage of the ESPE.

 The device is already equipped with internal overvoltage and overcurrent suppression devices.
 The use of other external components is not recommended.

Example: connection to the safety relay SE-SR2

The figures show the connection between the safety light curtains and the safety relay of the SE-SR2 series
functioning in the Automatic Restart mode (left side) and Manual Restart with monitoring (right side).

 Do not use varistors, RC circuits or LEDs in parallel at relay inputs or in series at OSSD outputs.
 The OSSD1 and OSSD2 safety contacts cannot be connected in series or in parallel, but can be used

separately, conforming to the plant’s safety requirements.

 If one of these configurations is erroneously used, the device enters into the output failure condition (see

cfr.USER INTERFACE AND DIAGNOSTICS page 42).

SG4 BASE

32/74

Fig 30 - OSSDs connection

Fig 31 - Behaviour of OSSDs

 Connect both OSSDs to the device to control.
 Failure to connect an OSSD to the activating device jeopardizes the system safety degree that the light curtain

has to control.

SG4 BASE

33/74

Fig 32 - Ground connection configuration

Electrical protections

Class I

Class III

Ground Connection

Compulsory

Not necessary

Ground connection symbol

Compulsory

Not necessary

Power supply by generators SELV / PELV

Recommended

Compulsory

4.3 EARTH CONNECTION

Safety light curtain units are preset for easy ground connection. A special compartment, positioned onto caps and
marked with the special symbol shown in Fig 32 - page 33, allows connection with ground cable by means of an
additional screw coming with the equipment.

Ground connection configuration is the most common and guarantees the best immunity against electromagnetic
disturbances. Safety light curtain can function even without ground connection.

This condition has to be carefully evaluated according to the EMC disturbance immunity and necessary insulation
class considering the plant or entire system where the light curtain is installed.

 The ground connection of the two units is not necessary for Class III, while the use of a duly-insulated low-

voltage feeder type SELV or PELV is compulsory. In this case, we recommend covering the earth symbol
present on the caps of the two units with a blank sticker.

 The ground connection of the two units is compulsory for Class I, while the use of a duly-insulated feeder type

SELV or PELV is not compulsory but anyway recommended.

The following table is a summary of SG2-E electrical protections.

SG4 BASE

34/74

Fig 33 -

Fig 34 - Receiver & Emitter

5 ALIGNMENT PROCEDURE

The alignment between the emitting and the receiving units is necessary to obtain the correct operation of the light
curtain.

A good alignment prevents outputs instability caused by dust or vibrations.
The alignment is perfect if the optical axes of the first and the last emitting unit's beams coincide with the optical

axes of the corresponding elements of the receiving unit.

The beam used to synchronise the two units is the first after the connector.
SYNC is the optics connected with this beam and LAST is the optics connected to the last beam after the SYNC

unit.

Signals are clearly identified through symbols allowing immediate reading, independent of bars directions. A short
description of the signalling LEDs is necessary to avoid misunderstandings.

SG4 BASE

35/74

Display

LED

NORMAL OP.

LED SAFE

(BREAK)

Condition

Alignment status

ON

OFF

Each beam is over the min.

operating threshold and the

number of beam

over the threshold is included

between 25 and 50%

ON

OFF

Each beam is over the min.

operating threshold and the

number of beam

over the threshold is included

between 50 and 75%

ON

OFF

Each beam is over the min.

operating threshold and the

number of beam

over the threshold is included

between 75 and 100%

MAXIMUM

Ensure that the green LED ( NORMAL OP.) is steady ON.

5.1 CORRECT ALIGNMENT PROCEDURE

The light curtain alignment can be effected only after having completed the mechanical installation and the
electrical connections as described above.

Compare alignment results with those given in the following table:

SG4-xx-xxx-OO-X:

a. Delimit the area in which the green LED (( ) is steady through some micro adjustments - for the first and

then for the second unit - so to have the maximum alignment (4) and then place both units in the centre of this
area.

b. Fix the two units firmly using brackets. Verify that the green LED ( ) on the RX unit is ON and beams are

not interrupted, then verify that the red LED SAFE (BREAK) turns ON if even one single beam is
interrupted (condition where an object has been detected).This verification shall be made with the special

cylindrical “Test Piece” having a size suitable to the resolution of the device used (refer cfr.Controls after first
installation page 24.

c. Switch OFF and ON the device in normal operating mode.

The alignment level is monitored also during device standard operating mode via display (see cfr.Diagnostic
messages page 42)

Once the curtain has been aligned and correctly fastened, the display signal is useful both to check the alignment
and show a change in the environmental conditions (occurrence of dust, light disturbance and so on) via signal
level monitoring.

SG4 BASE

36/74

Display

LED

NORMAL OP.

LED

SAFE (BREAK)

LED yellow

SYNC

LED yellow

LAST

Condition

Alignment

status

OFF

ON

ON

ON

SYNC NOK
LAST NOK
SYNC OK
LAST NOK

Not

aligned

OFF

ON

OFF

ON

SYNC OK
LAST OK

Not

aligned

OFF

ON

OFF

OFF

MIDDLE OPTICS NOK

Not

aligned

ON

OFF

OFF

OFF

Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 0 and 25%

MINIMUM

align.

ON

OFF

OFF

OFF

Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 25 and 50%

-

ON

OFF

OFF

OFF

Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 50 and 75%

- ON

OFF

OFF

OFF

Each beam is over the min.
operating threshold and the
number of beam over
the threshold is included
between 75 and 100%

MAXIMUM

align.

Ensure that the green LED ( NORMAL OP.) is steady ON.

SG4-xx-xxx-OO-E:

a. Keep the receiver in a steady position and set the emitter until the yellow LED ( SYNC) is OFF. This

condition shows the alignment of the first synchronisation beam.

b. Rotate the emitter, pivoting on the lower optics axis, until the yellow LED ( LAST) is OFF.

c. Delimit the area in which the green LED ( ) is steady through some micro adjustments - for the first and

then for the second unit - so to have the maximum alignment (4) and then place both units in the centre of this
area.

d. Fix the two units firmly using brackets. Verify that the green LED ( ) on the RX unit is ON and beams are

not interrupted, then verify that the red LED SAFE (BREAK) turns ON if even one single beam is
interrupted (condition where an object has been detected). This verification shall be made with the special

cylindrical “Test Piece” having a size suitable to the resolution of the device used (refer cfr. Controls after first
installation page 24).

e. Switch OFF and ON the device in normal operating mode.

The alignment level is monitored also during device standard operating mode via display (cfr.USER INTERFACE
AND DIAGNOSTICS page 42).

Once the curtain has been aligned and correctly fastened, the display signal is useful both to check the alignment
and show a change in the environmental conditions (occurrence of dust, light disturbance and so on) via signal
level monitoring.

SG4 BASE

37/74

Fig 35 - Time chart (Manual Restart)

Carefully assess risk conditions and reset modes.
In applications protecting access to dangerous areas, the automatic reset mode is
potentially unsafe if it allows the operator to pass completely beyond the sensitive area
(see Fig 12 - page 18).
In this case, the reset, using for example the manual reset of the SE-SR2 relay,
(cfr.Notes on connections page Errore. Il segnalibro non è definito. might be necessary.

6 FUNCTIONS SETTING

6.1 RESET MODE

SG4-xx-xxx-OO-E models:

The interruption of a beam due to an opaque object causes the opening of OSSD outputs and the stop of the safety
light curtain SAFE (BREAK) condition.

ESPE standard operation can be reset (OSSD safety contact closing = NORMAL OP. condition ) in two
different ways:

 Automatic restart - After its activation ESPE resets to standard operating condition once the object has

been removed from the controlled area.

 Manual restart - After its activation ESPE resets to standard operating condition only once the reset

function has been enabled and provided that the object has been removed from the controlled area. This
condition, called interlock, is signalled on the display (see cfr.USER INTERFACE AND DIAGNOSTICS

page 42).

Time chart (Manual Restart)

The automatic or manual restart can be selected by connecting the receiver (see cfr.ELECTRICAL
CONNECTIONS page 27).

SG4 BASE

38/74

Fig 36 - Test timings

7 FUNCTIONS

This chapter deals with all the functions of the light curtain.

7.1 TEST

The TEST function can be activated by keeping a normally open external contact (TEST push-button), open for at
least 0.5 seconds.

The TEST signal is active high.

SG4 BASE

39/74

Fig 37 - Reset timings

7.2 RESET

The RX light curtain has a RESET function which is activated after an internal error.
The reset can be made only in case of optical error, OSSD error EDM or manual/automatic restart selection (see

cfr.USER INTERFACE AND DIAGNOSTICS page 42).

The RESET function can be activated by keeping a normally open external contact (RESET/RESTART push­button), open for at least 5 seconds.

The RESET signal is active high.

SG4 BASE

40/74

Fig 38 -

Fig 39 - OSSD status

The decimal dot on the display shows that the function is enabled.

7.3 EDM

The light curtain has a function for monitoring actuation external devices (EDM). This function can be enabled or
deactivated.

EDM enabled:

 Disconnect or connect to the ground pin 3 of receiver M12 8-pole connector (EDM enabling = ON).
 Connect EDM input (pin 4 of M12 8-pole - RX) to a 24 VDC normally closed contacts of the device to be

monitored.

EDM deactivated:

 Connect to 24 VDC pin 3 of receiver M12 8-pole connector (EDM enabling = OFF).
 Disconnect or connect to the ground EDM input (pin 4 of M12 8-pole - RX).

This function checks normally closed contact switch on OSSD status change.

TC >= 350 msec: 350 msec: time after OSSD OFF-ON switch when EDM test is performed.
T0 >= 100 msec: time after OSSD ON-OFF switch when EDM test is performed.

SG4 BASE

41/74

Fig 40 -

The alignment level is monitored also during device standard operating mode via
display (see cfr.USER INTERFACE AND DIAGNOSTICS page 42).
Once the curtain has been aligned and correctly fastened, the display signal is useful
both to check the alignment and show any changes in the environmental conditions
(occurrence of dust, light disturbance and so on).

OSSDs are not active on the alignment mode.

7.4 ALIGNMENT AID FUNCTION

Light curtain is equipped with a system which informs the operator on the alignment obtained.
The alignment function can be activated when powering the device, by keeping the normally open

RESET/RESTART contact closed for at least 0.5 seconds (see Fig 30 - page 32).

When the best alignment has been reached, restart the device to return to the standard operating mode, by
powering off and on again the Rx unit.

SG4 BASE

42/74

Fig 41 - Signalling LEDs

8 USER INTERFACE AND DIAGNOSTICS

8.1 USER INTERFACE

Curtain operating status is displayed onto a 1-digit display both on receiver and emitter.
Light curtain also has four LEDs on the receiver and two LEDs on the emitter.

Fig 41 - page 42 shows all signalling LEDs modes: OFF, ON and BLINKING.

SG4 BASE

43/74

Function

State

Meaning

LED

DIGIT

Normal operation

Emission

(OSSD ON)

(green ON)

Light curtain working in normal operating

conditions

Interruption

(OSSD OFF)

(red ON)

Light curtain working in safety block

conditions.

Signal level

Minimum (1 bar)

Medium (2 bar)

Maximum (3 bar)

Function

Type

Check and repair

LED

DIGIT

Error status

OSSD error

(red ON)

Check OSSD connections. Make sure that
they are not in contact with one another or

with the supply cables, then Reset.

If the failure continues contact DATALOGIC.

Internal error

(red ON)

Switch OFF and switch ON the power supply

circuit. If the failure continues contact

DATALOGIC.

Optical error

(red ON)

Reset. If the failure continues contact

DATALOGIC.

Function

State

Meaning

LED

DIGIT

Normal operation

Emission

(green ON yellow

ON)

Light curtain in normal operating condition

Function

Type

Check and repair

LED

DIGIT

Error status

Internal error I

(green ON)

Switch OFF and switch ON the power supply

circuit. If the failure continues contact

DATALOGIC.

Optical error

(green ON)

Switch OFF and switch ON the power supply

circuit. If the failure continues contact

DATALOGIC.

No power supply

(LEDs OFF)

Check connections and input voltage correct

value. If the failure continues contact

DATALOGIC.

8.2 DIAGNOSTIC MESSAGES

The operator can evaluate the main causes of the system stop or failure through the display and signalling LEDs.

Diagnostic messages SG4-xx-xxx-OO-X models

For Receiver:

For Emitter:

SG4 BASE

44/74

Function

State

Meaning

LED

DIGIT

Normal operation

Alignment

See ALIGNMENT PROCEDURE page 33

TEST

(red ON)

Light curtain being tested. OSSD status shall

be OFF

Emission

(OSSD ON)

(green ON)

Light curtain working in normal operating

conditions

Interruption

(OSSD OFF)

(red ON)

Light curtain working in safety block

conditions.

Interlock

Beams free

(red ON

yellow ON)

Light curtain in interlock, waiting for restart.

OSSD status must be OFF

Interlock

Beams

interrupted

(red ON

yellow ON)

Light curtain in interlock. OSSD status must

be OFF

Signal level

Minimum (1 bar)

Medium (2 bar)

Maximum (3 bar)

EDM enabled

EDM function is selected

-

Function

Type

Check and repair

LED

DIGIT

Error status

OSSD error

(red ON)

Check OSSD connections. Make sure that
they are not in contact with one another or

with the supply cables, then Reset.

If the failure continues contact DATALOGIC.

Internal error

(red ON)

Switch OFF and switch ON the power supply

circuit.

If the failure continues contact DATALOGIC.

Optical error

(red ON)

Reset. If the failure continues contact

DATALOGIC.

EDM error

(red ON)

Check EDM connections and lines.

If the failure continues contact DATALOGIC.

Restart selection

error

(red ON)

Check the man/auto restart connection.

If the failure continues contact DATALOGIC.

No power supply

(LEDs OFF)

Check connections and input voltage value.

If the failure continues contact DATALOGIC.

Diagnostic messages SG4-xx-xxx-OO-E models

For Receiver:

SG4 BASE

45/74

Function

State

Meaning

LED

DIGIT

Normal operation

TEST

(green ON)

Light curtain being tested. OSSD status on

the receiver must be OFF

Emission

(green ON yellow

ON)

Light curtain in normal operating condition

Function

Type

Check and repair

LED

DIGIT

Error status

Internal error

(green ON)

Switch OFF and switch ON the power supply

circuit.

If the failure continues contact DATALOGIC.

Optical error

(green ON)

Switch OFF and switch ON the power supply

circuit.

If the failure continues contact DATALOGIC.

No power supply

(LEDs OFF)

Check connections and input voltage correct

value.

If the failure continues contact DATALOGIC.

For Emitter:

SG4 BASE

46/74

9 PERIODICAL CHECKS

The following is a list of recommended check and maintenance operations that should be periodically carried-out
by qualified personnel (cfr. Controls after first installation page 24)

Check that:
 The ESPE stays locked ( ) during beam interruption along the entire protected area, using the suitable

“Test Piece” (according to the Fig 20 - page 25 scheme).

 The ESPE is correctly aligned. Press slightly product side, in both directions and the red LED must not

turn ON.

 The response time upon machine STOP (including response time of the ESPE and of the machine) is within

the limits defined for the calculation of the safety distance (see cfr.INSTALLATION page 17).

 The safety distance between the dangerous areas and the ESPE are in accordance with the instructions

included in INSTALLATION page 17.

 Access of a person between ESPE and machine dangerous parts is not possible nor is it possible for him/her

to stay there.

 Access to the dangerous area of the machine from any unprotected area is not possible.
 The ESPE and the external electrical connections are not damaged.

The frequency of checks depends on the particular application and on the operating conditions of the safety light
curtain.

SG4 BASE

47/74

Safety MUST be a part of our conscience.

9.1 GENERAL INFORMATION AND USEFUL DATA

The safety devices fulfil their safety function only if they are correctly installed, in accordance with the Standards in
force.

If you are not certain to have the expertise necessary to install the device in the correct way, DATALOGIC is at
your disposal to carry out the installation.

The device uses fuses that are not self-resetting. Consequently, in presence of short-circuits causing the cut-off of
these fuses, both safety light curtains (RX and TX) shall be sent to DATALOGIC Repair Service Department.

A power failure caused by interferences may cause the temporary or trigger Safety State over connected safety
Fieldbus, but the safe functioning of the light curtain will not be compromised.

9.2 WARRANTY

The warranty period for this product is 36 months.
See the General Terms and Conditions of Sales at www.datalogic.com for further details.

DATALOGIC will not be liable for any damages to persons and things caused by the non-observance of the correct
installation modes and device use.

In presence of a non-functioning device, always return the emitting and receiving units for repair or replacement.

SG4 BASE

48/74

10 DEVICE MAINTENANCE

DATALOGIC safety light curtains do not require special maintenance operations.

To avoid the reduction of the operating distance, optic protective front surfaces must be cleaned at regular
intervals.

Use soft cotton cloths damped in water.
Do not apply too much pressure on the surface in order to avoid making it opaque.

Please do not use on plastic surfaces or on light curtain painted surfaces:

 alcohol or solvents
 wool or synthetic cloths
 paper or other abrasive materials

10.1 PRODUCT DISPOSAL

Under current Italian and European laws, DATALOGIC is not obliged to take care of product disposal at the end of
its life.

DATALOGIC recommends to dispose of the product in compliance with local laws or contact authorised waste
collection centres.

SG4 BASE

49/74

SAFETY CATEGORY:

Type 4 (rif. EN 61496-1: 2013)

SIL 3 (rif. EN 61508)

SIL CL 3 (ref. EN 62061:2005/A2: 2015)

PL e, Cat. 4 (rif. EN ISO 13849-1: 2015)

PFHd [1/h] = 2,64E-09

MTTFd [years] = 444

ELECTRICAL DATA

Power supply (Vdd):

24 VDC ± 20%

Consumption (TX):

2.5 W max

Consumption (RX):

3.5 W max (without load)

Outputs:

2 PNP

Short-circuit protection:

1.4 A max

Output current:

0.5 A max su ciascuna uscita

Output voltage – status ON:

Vdd –1 V min

Output voltage – status OFF:

0.2 V max

Capacitive load:

2.2 uF @ 24Vcc max

Response times:

see chapter
AVAILABLE MODELS AND RESPONSE TIMES page 50

Controlled height:

150..1800 mm

Auxiliary functions:

Reset / Test / EDM

Electrical protection:

Classe I / Classe III (see chapter ELECTRICAL CONNECTIONS
page 27)

Connections:

for receiver:

M12 5-pole (SG4-xx-xxx-OO-X)
M12 8-pole (SG4-xx-xxx-OO-E)

for emitter:

M12 4-pole

Cables length (for power supply):

50 m. max

OPTICAL DATA

Emitting light (λ):

Infrared, LED (950 nm)

Resolution:

14 - 30 mm

Operating distance:

0.2…19 m per 30 mm

0.2…6 m per 14 mm

Ambient light rejection:

EN 61496-2: 2013

MECHANICAL AND ENVIRONMENTAL DATA

Operating temperature:

0…+ 55 °C

Storage temperature:

- 25…+ 70 °C

Temperature class:

T6

Humidity:

15…95 % (no condensation)

Mechanical protection:

IP 65 EN 60529

Vibrations:

Width 0.35 mm, Frequency 10 … 55 Hz
20 sweep per axis, 1octave/min EN 60068-2-6

Shock resistance:

16 ms (10 G) 1,000 shocks per axis EN 60068-2-29

Housing material:

Painted aluminium (yellow RAL 1003)

Front side material:

PMMA

Cover material:

PC LEXAN

Weight:

1.35 kg per linear meter for single unit

11 TECHNICAL DATA

SG4 BASE

50/74

Model

Controlled

height (mm)

No. Beams

Response time

(msec)

Resolution (mm)

SG4-14-015-OO-E/X

150

16

11

14

SG4-14-030-OO-E/X

300

32

15

14

SG4-14-045-OO-E/X

450

48

18

14

SG4-14-060-OO-E/X

600

64

22

14

SG4-14-075-OO-E/X

750

80

25

14

SG4-14-090-OO-E/X

900

96

29

14

SG4-14-105-OO-E/X

1050

112

33

14

SG4-14-120-OO-E/X

1200

128

36

14

SG4-14-135-OO-E/X

1350

144

40

14

SG4-14-150-OO-E/X

1500

160

43

14

SG4-14-165-OO-E/X

1650

176

47

14

SG4-14-180-OO-E/X

1800

192

50

14

SG4-30-015-OO-E/X

150 8 9

30

SG4-30-030-OO-E/X

300

16

11

30

SG4-30-045-OO-E/X

450

24

13

30

SG4-30-060-OO-E/X

600

32

14

30

SG4-30-075-OO-E/X

750

40

16

30

SG4-30-090-OO-E/X

900

48

18

30

SG4-30-105-OO-E/X

1050

56

19

30

SG4-30-120-OO-E/X

1200

64

21

30

SG4-30-135-OO-E/X

1350

72

23

30

SG4-30-150-OO-E/X

1500

80

25

30

SG4-30-165-OO-E/X

1650

88

26

30

SG4-30-180-OO-E/X

1800

96

28

30

12 AVAILABLE MODELS

SG4 BASE

51/74

Product

PL

CAT

SIL

SIL

CL

PFHd

(1/h)

T1

(years

)

MTTFd
(years)

DC

SFF

HFT

SG4-14-120-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-14-135-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-14-150-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-14-165-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-14-180-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-015-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-030-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-045-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-060-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-075-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-090-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-105-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-120-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-135-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-150-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-165-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4-30-180-OO-E/X

e 4 3 3 2,64E-09

20

444

98,80%

99,30%

1

SG4 BASE

52/74

Fig 42 - Dimensions (mm)

MODEL 14mm

MODEL 30mm

L1 (mm)

L2 (mm)

SG4-14-015-OO-E/X

SG4-30-015-OO-E/X

233.3

153.3

SG4-14-030-OO-E/X

SG4-30-030-OO-E/X

383.2

303.2

SG4-14-045-OO-E/X

SG4-30-045-OO-E/X

533.2

453.3

SG4-14-060-OO-E/X

SG4-30-060-OO-E/X

683.2

603.2

SG4-14-075-OO-E/X

SG4-30-075-OO-E/X

833.2

753.3

SG4-14-090-OO-E/X

SG4-30-090-OO-E/X

983.2

903.2

SG4-14-105-OO-E/X

SG4-30-105-OO-E/X

1133.2

1053.2

SG4-14-120-OO-E/X

SG4-30-120-OO-E/X

1283.3

1203.3

SG4-14-135-OO-E/X

SG4-30-135-OO-E/X

1433.2

1353.2

SG4-14-150-OO-E/X

SG4-30-150-OO-E/X

1583.3

1503.3

SG4-14-165-OO-E/X

SG4-30-165-OO-E/X

1733.3

1653.3

SG4-14-180-OO-E/X

SG4-30-180-OO-E/X

1883.3

1803.3

13 OVERALL DIMENSIONS

SG4 BASE

53/74

MODEL

DESCRIPTION

ST-KSTD

Angled fixing bracket (4 pcs kit)

Fig 43 - Dimensions (mm)

14 INCLUDED ACCESSORIES

Metal angled fixing bracket (ST-KSTD)

SG4 BASE

54/74

MODEL

DESCRIPTION

CODE

ST-KSTD

Angled fixing bracket (4 pcs kit)

95ACC1670

Fig 44 - ST-KSTD

15 ACCESSORIES

(dimensions in mm)

15.1 (ST-KSTD) METAL ANGLED FIXING BRACKET

SG4 BASE

55/74

MODEL

DESCRIPTION

CODE

ST-K4OR

Orientable supports (4 pcs kit)

95ACC1680

ST-K6OR

Orientable supports (6 pcs kit)

95ACC1690

ST-K4AV

Antivibration supports (4 pcs kit)

95ACC1700

ST-K6AV

Antivibration supports (6 pcs kit)

95ACC1710

Fig 45 - Angled fixing bracket

Fig 46 - Angled fixing bracket + Orientable support

Fig 47 - Angled fixing bracket + Antivibration support

Fig 48 - Angled fixing bracket + Orientable support + Antivibration support

Angled fixing bracket mounting with orientable and antivibration supports

SG4 BASE

56/74

MODEL

DESCRIPTION

CODE

ST-KP4MP

Angled fixing bracket (4 pcs kit)

95ASE1100

ST-KP6MP

Angled fixing bracket (6 pcs kit)

95ASE1110

Fig 49 - ST-KPxMP

15.2 (ST-KPXMP) PLASTIC ANGLED FIXING BRACKET

SG4 BASE

57/74

MODEL

DESCRIPTION

CODE

ST-K4OR

Orientable supports (4 pcs kit)

95ACC1680

ST-K6OR

Orientable supports (6 pcs kit)

95ACC1690

ST-K4AV

Antivibration supports (4 pcs kit)

95ACC1700

ST-K6AV

Antivibration supports (6 pcs kit)

95ACC1710

Fig 50 - Angled fixing bracket

Fig 51 - Angled fixing bracket + Orientable support

Fig 52 - Angled fixing bracket + Antivibration support

Fig 53 - Angled fixing bracket + Orientable support + Antivibration support

Angled fixing bracket mounting with orientable and antivibration supports

SG4 BASE

58/74

MODEL

DESCRIPTION

CODE

ST-K4ROT

Rotating fixing bracket (4 pcs kit)

95ACC1280

Fig 54 - Dimensions (mm)

15.3 (ST-K4ROT) METAL ROTATING FIXING BRACKET

SG4 BASE

59/74

MODEL

DESCRIPTION

L (mm)

CODE

SG-PSB 600

Protective stand H=600 mm

600

95ASE2240

SG-PSB 1000

Protective stand H=1000 mm

1000

95ASE2250

SG-PSB 1200

Protective stand H=1200 mm

1200

95ASE2260

SG-PSB 1650

Protective stand H=1650 mm

1650

95ASE2270

SG-PSB 1900

Protective stand H=1900 mm

1900

95ASE2280

Fig 55 - Dimensions (mm)

MODEL

DESCRIPTION

CODE

ST-PS4-SG-SE

Mounting kit (4 pcs kit)

95ASE1750

ST-PS6-SG-SE

Mounting kit (6 pcs kit)

95ASE1760

Fig 56 - Fixing kit

15.4 (SG-PSB) PROTECTIVE STANDS

Mounting kit

SG4 BASE

60/74

MODEL

DESCRIPTION

CODE

SG-P

Plate kit with springs

95ASE2290

Fig 57 - Dimensions (mm)

Fig 58 - Mounting

15.5 (SG-P) PLATE KIT FOR PROTECTIVE STANDS

Mounting with SG-PSB

SG4 BASE

61/74

MODEL

DESCRIPTION

L(mm)

X (mm)

CODE

SE-S 800

Column and floor stand H= 800 mm

800

30x30

95ACC1730

SE-S 1000

Column and floor stand H= 1000 mm

1000

30x30

95ACC1740

SE-S 1200

Column and floor stand H= 1200 mm

1200

30x30

95ACC1750

SE-S 1500

Column and floor stand H= 1500 mm

1500

45x45

95ACC1760

SE-S 1800

Column and floor stand H= 1800 mm

1800

45x45

95ACC1770

Fig 59 - Dimensions (mm)

15.6 (SE-S) COLUMNS AND FLOOR STANDS

SG4 BASE

62/74

MODEL

DESCRIPTION

L1 (mm)

L2 (mm)

L3 (mm)

CODE

SG-DM 600

Deviating mirror version 600 mm

545

376

580

95ASE1680

SG-DM 900

Deviating mirror version 900 mm

845

676

880

95ASE1690

SG-DM 1200

Deviating mirror version 1200 mm

1145

976

1180

95ASE1700

SG-DM 1650

Deviating mirror version 1650 mm

1595

1426

1630

95ASE1710

SG-DM 1900

Deviating mirror version 1900 mm

1845

1676

1880

95ASE1720

Fig 60 - Dimensions ( mm)

MODEL

DESCRIPTION

CODE

SG-DM 150

Deviating mirror version 150 mm

95ASE1670

Fig 61 - SG-DM 150 Dimensions (mm)

15.7 (SG-DM) DEVIATING MIRRORS

The image includes the mirror SG-DM and a mounting kit ST-DM.

The image includes the mirror SG-DM and a mounting kit ST-DM.

SG4 BASE

63/74

MODEL

DESCRIPTION

CODE

ST-DM

SG-DM mounting kit (2 pcs kit)

95ASE1940

Fig 62 - Mounting kit

MODEL

DESCRIPTION

CODE

ST-PS-DM

Deviating mirror SG-DM mounting kit (2 T-nuts)

95ASE1770

Fig 63 - Mounting kit

Mounting kit for SG-DM with SE-S column and floor stands

For each SG-DM mirror order 1 mounting kit ST-DM.

Mounting kit SG-DM on SG-PSB (ST-PS-DM)

For each SG-DM mirror order 1 mounting kit ST-PS-DM.

SG4 BASE

64/74

MODEL

DESCRIPTION

L (mm)

CODE

SG -IP69K 150

Tubular IP69K H=150mm

373,5

95ASE1290

SG -IP69K 300

Tubular IP69K H=300mm

520,7

95ASE1300

SG -IP69K 450

Tubular IP69K H=450mm

670,8

95ASE1310

SG -IP69K 600

Tubular IP69K H=600mm

820,7

95ASE1320

SG -IP69K 750

Tubular IP69K H=750mm

970,8

95ASE1330

SG -IP69K 900

Tubular IP69K H=900mm

1120,7

95ASE1340

SG -IP69K 1050

Tubular IP69K H=1050mm

1270,7

95ASE1350

SG -IP69K 1200

Tubular IP69K H=1200mm

1420,8

95ASE1360

SG -IP69K 1350

Tubular IP69K H=1350mm

1570,7

95ASE1370

SG -IP69K 1500

Tubular IP69K H=1500mm

1720,8

95ASE1380

SG -IP69K 1650

Tubular IP69K H=1650mm

1870,8

95ASE1390

SG -IP69K 1800

Tubular IP69K H=1800mm

2020,8

95ASE1400

Fig 64 - Dimensions (mm)

Fig 65 - Mounting kit

15.8 (SG-IP69K) PMMA PROTECTION TUBES

SG4 BASE

65/74

MODEL

DESCRIPTION

CODE

SG-LS 150

Lens shield H=150 mm (5 pcs)

95ASE1450

SG-LS 300

Lens shield H=300 mm (5 pcs)

95ASE1460

SG-LS 450

Lens shield H=450 mm (5 pcs)

95ASE1460

SG-LS 600

Lens shield H=600 mm (5 pcs)

95ASE1470

SG-LS 750

Lens shield H=750 mm (5 pcs)

95ASE1480

SG-LS 900

Lens shield H=900 mm (5 pcs)

95ASE1490

SG-LS 1050

Lens shield H=1050 mm (5 pcs)

95ASE1500

SG-LS 1200

Lens shield H=1200 mm (5 pcs)

95ASE1510

SG-LS 1350

Lens shield H=1350 mm (5 pcs)

95ASE1520

SG-LS 1500

Lens shield H=1500 mm (5 pcs)

95ASE1530

SG-LS 1650

Lens shield H=1650 mm (5 pcs)

95ASE1540

SG-LS 1800

Lens shield H=1800mm (5 pcs)

95ASE1560

Fig 66 - Dimensions (mm)

MODEL

L

Li

Lo

Fig 67 – Mounting kit

n°

2+2

bracket

015

245

160

30

030

392

345

45

045

540

400

60

060

686

520

75

075

832

590

115

090

980

640

175

105

1126

740

200

n°

3+3

bracket

120

1274

445

200

135

1422

520

200

150

1568

595

200

165

1715

670

200

180

1860

745

200

Each package contains what is necessary to protect a single unit (TX or RX ).
To protect both TX and RX , two pieces of the same code are needed.

15.9 (SG-LS) PMMA LENS SHIELD

SG4 BASE

66/74

MODEL

DESCRIPTION

CODE

TP-14

Test piece Ø 14mm L=300mm

95ACC1630

TP-20

Test piece Ø 20mm L=300mm

95ACC1640

TP-24

Test piece Ø 24mm L=200mm

95ASE2570

TP-30

Test piece Ø 30mm L=300mm

95ACC1650

TP-34

Test piece Ø 34mm L=200mm

95ASE2580

TP-35

Test piece Ø 35mm L=300mm

95ACC1660

TP-40

Test piece Ø 40mm L=300mm

95ACC1820

TP-50

Test piece Ø 50mm L=300mm

95ACC1790

TP-90

Test piece Ø 90mm L=300mm

95ACC1800

15.10 (TP) TEST PIECE

SG4 BASE

67/74

MODEL

DESCRIPTION

CODE

CS-A1-02-U-03

4-pole M12 cable (axial) 3 m

95ASE1120

CS-A1-02-U-05

4-pole M12 cable (axial) 5 m

95ASE1130

CS-A1-02-U-10

4-pole M12 cable (axial) 10 m

95ASE1140

CS-A1-02-U-15

4-pole M12 cable (axial) 15 m

95ASE1150

CS-A1-02-U-25

4-pole M12 cable (axial) 25 m

95ASE1160

MODEL

DESCRIPTION

CODE

CS-A1-03-U-03

5-pole M12 cable (axial) 3 m UL2464

95ASE1170

CS-A1-03-U-05

5-pole M12 cable (axial) 5 m UL2464

95ASE1180

CS-A1-03-U-10

5-pole M12 cable (axial) 10 m UL2464

95ASE1190

CS-A1-03-U-15

5-pole M12 cable (axial) 15 m UL2464

95ASE1200

CS-A1-03-U-25

5-pole M12 cable (axial) 25 m UL2464

95ASE1210

CS-A1-03-U-50

5-pole M12 cable (axial) 50 m UL2464

95A252700

MODEL

DESCRIPTION

CODE

CS-A1-06-U-03

8-pole M12 cable (axial) 3 m UL2464

95ASE1220

CS-A1-06-U-05

8-pole M12 cable (axial) 5 m UL2464

95ASE1230

CS-A1-06-U-10

8-pole M12 cable (axial) 10 m UL2464

95ASE1240

CS-A1-06-U-15

8-pole M12 cable (axial) 15 m UL2464

95ASE1250

CS-A1-06-U-25

8-pole M12 cable (axial) 25 m UL2464

95ASE1260

CS-A1-06-U-50

8-pole M12 cable (axial) 50 m UL2464

95A252710

15.11 CONNECTION CABLES

4-pole M12 cables

5-pole M12 cables

8-pole M12 cables

SG4 BASE

68/74

MODEL

DESCRIPTION

CODE

SG-LP

Laser pointer

95ASE5590

Fig 68 - Dimensions (mm)

Fig 69 - Laser pointer

15.12 (SG-LP) LASER POINTER

The laser pointer of the SG-LP series represents a valid alignment and installation support for the safety light
curtain series.

The pointer can be moved along the light curtain profile to verify the complete device alignment (top and bottom).

SG4 BASE

69/74

MODEL

DESCRIPTION

CODE

SE-SR2

Type 4 safety relay - 3 NQ 1 NC

95ACC6170

Fig 70 - Safety relay

MODEL

DESCRIPTION

CODE

CSME-03VU24-Y14

EDM Relay

95ASE1270

Fig 71 - EDM Relay

15.13 (SE-SR2) SAFETY RELAY

The drawing show the connection between the safety light curtain and the Type 4 safety relay of the SE-SR2 series
operating in the automatic Restart mode.

15.14 (CSME-03VU24-Y14) EDM RELAY BOX

SG4 BASE

70/74

16 GLOSSARY

Detection zone: zone within which a specified test piece will be detected by the ESPE

Safety light curtain: it is an active optoelectronic protective device (AOPD) including an integrated system

consisting of one or several emitting elements and one or several receiving elements forming a detection area with
a detecting capacity specified by the supplier.

Detection capability (or Resolution): the minimum dimension which an opaque object must have in order to
interrupt at least one beams of the ESPE whatever is position across the protected height.

Force-guided contacts: Relay contacts are force guided when they are mechanically connected so that they must
switch simultaneously on input change.

If one contact of the series remains “welded”, no other relay contact is able to move.
That relay characteristic allows the use of EDM function.

OSSD (Output signal switching device): part of the ESPE connected to machine control system.
When the sensor is enabled during standard operating conditions, it switches to disabled status.
ESPE (Electro-sensitive protective equipment): assembly of devices and/or components working together to

activate the protective disabling function or to detect the presence of something and including at least: a sensor,
command/control devices and output signal switching devices.

AOPD (Active optoelectronic protective device): its detection function is achieved thanks to the use of
optoelectronic receivers and emitters detecting the optical beams interruptions inside the device caused by an
opaque object present inside the specified detecting area.

An active optoelectronic protective device (AOPD) can operate both in emitter-receiver mode and in retro-reflective
light curtains.

Protective device: device having the function to protect the operator against possible risks of injury due to the
contact with machine potentially-dangerous parts.

Min.installation distance: min. distance necessary to allow machine dangerous moving parts to completely stop
before the operator can reach the nearest dangerous point. This distance shall be measured from the middle point
of the detecting area to the nearest dangerous point. Factors affecting min. installation distance value are machine
stop time, total safety system response time and light curtain resolution.

EDM (External device monitoring): device used by the ESPE to monitor the status of the external command
devices.

MPCE (Machine primary control element): electrically-powered element having the direct control of machine
regular operation so as to be the last element, in order of time, to operate when the machine has to be enabled or
blocked.

Emitter (TX): unit emitting infrared beams, consisting of a set of optically-synchronised LEDs. The emitting unit,
combined with the receiving unit (installed in the opposite position), generates an optical “curtain”, i.e. the detecting
area.

Restart interlocking device (=RESTART): device preventing machine automatic restart after sensor activation
during a dangerous phase of machine operating cycle, after a change of machine operating mode, and after a
variation in machine start control devices.

Start interlocking device (= START): device preventing machine automatic start if the ESPE is live or the voltage
is disabled and enabled once again.

SG4 BASE

71/74

Interlock: operating state of ESPE in Manual Restart Mode when all beams are free but the Restart command

hasn’t been received yet.

Normal Operation: operating state of ESPE when all beams are free, OSSD LED lit GREEN in SL light curtain
OSSD1 and OSSD2 are switchen ON.

N.O.: normally opened

N.C.: normally closed

Machine operator: qualified person allowed to use the machine.

Qualified operator: a person who holds a professional training certificate or having a wide knowledge and

experience and who is acknowledged as qualified to install and/or use the product and to carry out periodical test
procedures.

Working point: machine position where the material or semifinished product is worked.

Receiver (RX): unit receiving infrared beams, consisting of a set of optically-synchronised phototransistors. The

receiving unit, combined with the emitting unit (installed in the opposite position), generates an optical “curtain”, i.e.

the detecting area.

Crossing hazard: situation under which an operator crossing the area controlled by the safety device and this
latter stops and keeps the machine stopped until the hazard is eliminated, and then enters the dangerous area.
Now the safety device could not be able to prevent or avoid an unexpected restart of the machine with the operator
still present inside the dangerous area.

Risk: probability of occurrence of an injury and severity of the injury itself.

Block condition (=BREAK): status of the light curtain taking place when a suitably-sized opaque object (see

cfr.XREF-1:313]) interrupts one or several light curtain beams.
Under these conditions, OSSD1 and OSS2 light curtain outputs are simultaneously switched OFF within the device

response time.

Safe State: operating state of ESPE when at least one beam is intercepted, OSSD LED lit RED in [INLINE-1:44
light curtain. OSSD1 and OSSD2 are both switched OFF.

Response time: maximum time between the occurrence of the event leading to the actuation of the sensing
device and the output signal switching devices (OSSD) achieving the OFF-state

Test piece: opaque object having a suitable size and used to test safety light curtain correct operation.

Type (of ESPE): the Electro-sensitive Protective Equipment (ESPE) have different reactions in case of faults or

under different environmental conditions.
The classification and definition of the "type" (ex. type 2, type 4, according to EN 61496-1: 2013) defines the

minimum requirements needed for ESPE design, manufacturing and testing.

Dangerous area: area representing an immediate or imminent physical hazard for the operator working inside it or
who could get in contact with it.

SG4 BASE

72/74

Fig 1 - Detection capability ......................................................................................................... 10

Fig 2 - Detection Zone................................................................................................................ 11

Fig 3 - Installation distance (vertical positioning) ........................................................................ 12

Fig 4 - Installation distance (horizontal positioning) ................................................................... 13

Fig 5 - Operating point protection on drilling machines .............................................................. 14

Fig 6 - Bending presses ................................ ................................ ................................ ............. 14

Fig 7 - Paper cutting machines .................................................................................................. 15

Fig 8 - Milling machines ............................................................................................................. 15

Fig 9 - Wrong light curtain positioning ........................................................................................ 18

Fig 10 - Correct light curtain positioning .................................................................................... 18

Fig 11 - Wrong light curtain positioning ...................................................................................... 18

Fig 12 - Correct light curtain positioning ..................................................................................... 18

Fig 13 - Distance from reflecting surfaces .................................................................................. 19

Fig 14 - Minimum distance from reflective surface ..................................................................... 20

Fig 15 - Distance between homologous devices ................................ ................................ ........ 21

Fig 16 - ESPE Type4 ................................................................................................................. 21

Fig 17 - Recommended positioning for homologous devices ..................................................... 22

Fig 18 - Wrong light curtain TX-RX orientations ................................ ................................ ......... 23

Fig 19 - Use of deviating mirrors ................................................................................................ 24

Fig 20 - Path of the test piece .................................................................................................... 25

Fig 21 - Angle brackets ................................................................ ................................ .............. 26

Fig 22 - Rotating brackets .......................................................................................................... 26

Fig 23 - Fixing brackets .............................................................................................................. 27

Fig 24 - Dimensions (mm) .......................................................................................................... 27

Fig 25 - Receiver ........................................................................................................................ 28

Fig 26 - Emitter .......................................................................................................................... 28

Fig 27 - Receiver ........................................................................................................................ 29

Fig 28 - Emitter .......................................................................................................................... 29

Fig 29 - Connection to SE-SR2 Safety Relais ............................................................................ 31

Fig 30 - OSSDs connection ........................................................................................................ 32

Fig 31 - Behaviour of OSSDs ..................................................................................................... 32

Fig 32 - Ground connection configuration .................................................................................. 33

Fig 33 - ....................................................................................................................................... 34

Fig 34 - Receiver & Emitter ........................................................................................................ 34

Fig 35 - Time chart (Manual Restart) ......................................................................................... 37

Fig 36 - Test timings .................................................................................................................. 38

Fig 37 - Reset timings ................................................................................................ ................ 39

Fig 38 - ....................................................................................................................................... 40

Fig 39 - OSSD status ................................................................................................................. 40

Fig 40 - ....................................................................................................................................... 41

Fig 41 - Signalling LEDs............................................................................................................. 42

Fig 42 - Dimensions (mm) .......................................................................................................... 52

Fig 43 - Dimensions (mm) .......................................................................................................... 53

Fig 44 - ST-KSTD ...................................................................................................................... 54

Fig 45 - Angled fixing bracket ..................................................................................................... 55

Fig 46 - Angled fixing bracket + Orientable support ................................................................... 55

Fig 47 - Angled fixing bracket + Antivibration support ................................................................ 55

Fig 48 - Angled fixing bracket + Orientable support + Antivibration support .............................. 55

Fig 49 - ST-KPxMP .................................................................................................................... 56

Fig 50 - Angled fixing bracket ..................................................................................................... 57

Fig 51 - Angled fixing bracket + Orientable support ................................................................... 57

SG4 BASE

73/74

Fig 52 - Angled fixing bracket + Antivibration support ................................................................ 57

Fig 53 - Angled fixing bracket + Orientable support + Antivibration support .............................. 57

Fig 54 - Dimensions (mm) .......................................................................................................... 58

Fig 55 - Dimensions (mm) .......................................................................................................... 59

Fig 56 - Fixing kit ........................................................................................................................ 59

Fig 57 - Dimensions (mm) .......................................................................................................... 60

Fig 58 - Mounting ....................................................................................................................... 60

Fig 59 - Dimensions (mm) .......................................................................................................... 61

Fig 60 - Dimensions ( mm) ......................................................................................................... 62

Fig 61 - SG-DM 150 Dimensions (mm) ...................................................................................... 62

Fig 62 - Mounting kit .................................................................................................................. 63

Fig 63 - Mounting kit .................................................................................................................. 63

Fig 64 - Dimensions (mm) .......................................................................................................... 64

Fig 65 - Mounting kit .................................................................................................................. 64

Fig 66 - Dimensions (mm) .......................................................................................................... 65

Fig 67 – Mounting kit ............................................................................................................... 65

Fig 68 - Dimensions (mm) .......................................................................................................... 68

Fig 69 - Laser pointer ................................................................................................................. 68

Fig 70 - Safety relay ................................................................................................................... 69

Fig 71 - EDM Relay .................................................................................................................... 69

SG4 BASE

74/74