SG2 BASE
Instruction Manual
ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)
Datalogic Automation S.r.l.
Via Lavino, 265
40050 - Monte S. Pietro
Bologna - Italy
SG2 BASE Instruction Manual
Ed.: 10/2012
© 2012 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.
11/10/2012
INDEX
1. GENERAL INFORMATION ........................................................................................................................1
1.1. General description of the safety light curtains................................................................................................ 1
1.1.1. Package contents..........................................................................................................................................................................2
1.2. New features compared to the SF2 Series...................................................................................................... 2
1.3. How to choose the device ............................................................................................................................... 3
1.3.1. Resolution.....................................................................................................................................................................................3
1.3.2. Controlled height .........................................................................................................................................................................4
1.3.3. Minimum installation distance.....................................................................................................................................................5
1.4. Typical applications ......................................................................................................................................... 8
1.5. Safety information.......................................................................................................................................... 10
2. INSTALLATION MODE............................................................................................................................11
2.1. Precautions to be observed for the choice and installation of the device ..................................................... 11
2.2. General information on device positioning..................................................................................................... 12
2.2.1. Minimum installation distance.................................................................................................................................................. 13
2.2.2. Minimum distance from reflecting surfaces ............................................................................................................................. 14
2.2.3. Emitter and receiver orientation............................................................................................................................................... 16
2.2.4. Installation of several adjacent safety light curtains ............................................................................................................... 17
2.2.5. Use of deviating mirrors........................................................................................................................................................... 18
2.2.6. Controls after first installation ................................................................................................................................................. 19
3. MECHANICAL MOUNTING .....................................................................................................................20
4. ELECTRICAL CONNECTIONS................................................................................................................23
4.1. Notes on connections .................................................................................................................................... 24
4.2. Earth connection............................................................................................................................................ 26
5. ALIGNMENT PROCEDURE.....................................................................................................................27
5.1. Correct alignment procedure ......................................................................................................................... 29
6. FUNCTIONING MODE .............................................................................................................................30
6.1. Reset mode ................................................................................................................................................... 30
6.2. 6.2. Test function........................................................................................................................................... 30
6.3. Reset function ............................................................................................................................................... 30
7. DIAGNOSTIC FUNCTIONS .....................................................................................................................31
7.1. User interface ................................................................................................................................................ 31
7.2. Diagnostic messages .................................................................................................................................... 32
8. PERIODICAL CHECKS............................................................................................................................33
8.1. General information and useful data.............................................................................................................. 34
8.2. Warranty........................................................................................................................................................ 34
9. DEVICE MAINTENANCE .........................................................................................................................35
9.1. Product disposal ............................................................................................................................................ 35
10. TECHNICAL DATA ..................................................................................................................................36
11. LIST OF AVAILABLE MODELS ..............................................................................................................37
12. OVERALL DIMENSIONS .........................................................................................................................39
13. OUTFIT .....................................................................................................................................................40
13.1. Angled fixing bracket mounting ..................................................................................................................... 41
14. ACCESSORIES........................................................................................................................................42
14.1. Rotating fixing bracket ................................................................................................................................... 42
14.2. Deviating mirrors ........................................................................................................................................... 43
14.3. Columns and floor stands.............................................................................................................................. 44
14.4. Protective stands........................................................................................................................................... 45
14.5. Test piece...................................................................................................................................................... 45
14.6. Connection cables......................................................................................................................................... 46
14.7. Safety relay ................................................................................................................................................... 47
15. GLOSSARY..............................................................................................................................................48
Instruction Manual SG2 BASE
1
1. GENERAL INFORMATION
1.1. General description of the safety light curtains
The safety light curtains of the SG2 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 SG2 series are Type 2 intrinsic safety systems used as accident-prevention
protection devices and are manufactured in accordance with the international Standards in force for
safety, in particular:
CEI IEC 61496-1: 2004 Safety of machinery: electro-sensitive protective equipment. Part 1:
General prescriptions and tests.
CEI IEC 61496-2: 2006 Safety of machinery: electro-sensitive protective equipment -
Particular requirements for equipment using active optoelectronic
protective devices.
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 section 7 “Diagnostic
functions”).
The device consists in 2 units that, according to the model, are composed by one or several emitting
and receiving modules.
The receiver checks the control operations and safety actions.
During installation, two yellow LEDs facilitate the alignment of both units (see section 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 operator are preceded
by a note:
Notes and detailed descriptions about particular characteristics of the safety devices in order to better
explain their functioning.
Special instructions regarding the installation process.
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.
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
AUTOMATION Technical Service for any necessary information relative to the functioning of the SG2
light curtains and the safety rules that regulate the correct installation (see section 8 “Periodical
checks”).
SG2 BASE Instruction Manual
2
1.1.1. Package contents
Package contains the following objects:
Receiver (RX)
Emitter (TX)
Quick Guide for first installation
CD with user manual and other documents
Checklist and periodical maintenance schedule
4 angled fixing brackets and specific fasteners
2 angled fixing brackets for models with heights included between 1200 and 1800 mm
1.2. New features compared to the SF2 Series
The SG2-B safety light curtains, compared to the SF2 series, present the following new features:
Increased operating distance
Range enlargement with 150 to 1800 mm controlled heights
Reduced response times
New fastening system with rotating brackets
New mechanical profile compatible with SE accessories
Different positioning of synchronisation optics (the first one from the reference line)
Different mechanical mounting
Instruction Manual SG2 BASE
3
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 = 30 mm hand protection
Type 2
R = 50 mm
R = 90 mm
presence control
As shown in Fig.1, the resolution only depends on the geometrical characteristics of the lenses,
diameter and distance between centres, and is independent from any environmental and operating
conditions of the safety light curtain.
Fig. 1
The resolution value is obtained applying the following formula:
R = I + d
where:
I = Distance between two adjacent optics
d = Lens diameter
SG2 BASE Instruction Manual
4
1.3.2. Controlled height
The controlled height is the height protected by the safety light curtain ( Hp )
Fig. 2
The SG2-B controlled height is delimited by the yellow line pad-printed on the front glass and by the
dimensions listed in the table:
Model
Controlled height Hp
(mm)
SG2-30-015-OO-X 150
SG2-kk-030-OO-X 300
SG2-kk-045-OO-X 450
SG2-kk-060-OO-X 600
SG2-kk-075-OO-X 750
SG2-kk-090-OO-X 900
SG2-kk-105-OO-X 1050
SG2-kk-120-OO-X 1200
SG2-kk-135-OO-X 1350
SG2-kk-150-OO-X 1500
SG2-k-165-OO-X 1650
SG2-kk-180-OO-X 1800
kk = Resolution (30mm – 50 mm – 90 mm)
Hp
Reference
Instruction Manual SG2 BASE
5
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-999 Standard:
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
The following formula is used for the calculation of the safety distance:
S = K (t
1
+ t2) + C
where:
S = Minimum safety distance in mm.
K = Speed of the object, limb or body approaching the
dangerous area in mm/sec.
t
1
= Response time of the ESPE in seconds (see section 9
“Technical data”)
t
2
= 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 40mm
C = 850 mm for devices with resolution 40mm.
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
SG2 BASE Instruction Manual
6
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 (t
1
+ t2) + 1200 – 0.4 H
where:
S = Minimum safety distance in mm.
t
1
= Response time of the ESPE in seconds
(
see section 9 “Technical data”)
t2 = Machine stopping time in seconds.
H = Beam height from ground; this height must always be less than 1,000 mm.
Fig. 4
Instruction Manual SG2 BASE
7
Practical examples:
Let's suppose to have a light curtain with height = 600 mm
1) 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
C = 850 for devices with resolution > 40 mm
d = Resolution of the system.
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.
SG2-30-060 SG2-50-060 SG2-90-060
T
0.398 sec 0.393 sec 0.391 sec
C
128 mm 850 mm 850 mm
S
764.8 mm 1478.8 mm 1475.6 mm
2) To calculate the distance of the device from the ESPE, in a horizontal position, the following formula
is used:
S = 1600 * T + 1200 – 0.4 * H
where:
H = Beam min. height from ground 15 * (d – 50)
D = resolution
SG2-50-060 SG2-90-060
T
- 0.3 sec 0.391 sec
H
- 0 mm 600 mm
S
- 1828.8 mm 1585.6 mm
WARNING
: the reference standard is EN-999 “Machine safety - the positioning of the protective
device based on the approaching speed of the human body”.
This information is just an indication and a kind of summary.
For safety distance correct calculation, it is compulsory to refer to the whole EN999 standard.
SG2 BASE Instruction Manual
8
1.4. Typical applications
The safety light curtains of the SG2 series are used in all automation fields where the control and
protection of the access to dangerous areas are necessary.
In particular, they are used to stop the moving of mechanical parts in:
- Automatic machines;
- Machines for packaging, material handling, storing;
- Weaving machines, wood working machines, ceramic working machines;
- Automatic and semiautomatic assembly lines;
- Automatic warehouses.
In food industry applications, DATALOGIC AUTOMATION Technical Service has to verify the
compatibility of the material of the safety light curtain housing with any chemical agents used
in the production process.
Example 1: Hand protection on moulding machines
In order to protect the light curtain against dust and humidity, the IP69K protective enclosure is used.
The aim is to prevent operator's hands from being squashed during the final product stacking process.
In addition, the solution must not interfere with the manufacturing process. Working premises are
characterised by a humidity of 85% and a temperature of 25 °C. Moreover, washing with cold highpressure waterjets is frequent, as well as the use of alkaline detergents or acids.
Solution
:
the IP69K protective enclosure, made from an acrylic PMMA tube, is an effective protection without
traps for dirt or contamination. The cap’s O’ring prevents water or dirt from entering the tube and at
the same time, prevents also internal condensation. The cable connecting the enclosure to the light
curtain is protected and fixed thanks to a PG gland that prevents water or dirt from entering the tube.
Advantages
:
the use of SG2 with the IP69K enclosure ensures reliable protection under extreme environmental
conditions. Not only does the IP69K protective enclosure meet hygiene, washing resistance,
availability and safety requirements, but also ergonomic and productivity requirements, as the
protected area remains always accessible when the machine is stopped.
Instruction Manual SG2 BASE
9
Example 2: Cooling and conditioning systems
Cooling and conditioning systems, as well as automotive
equipment and components are checked inside a machine, to
detect possible leaks by a helium mass spectrometer. The
point where these parts are positioned inside the measuring
chamber requires a Type 2 protection ensuring a certain
space saving and an easy access to the protected area.
Solution:
the SG2 safety light curtain series represents the ideal
solution if the safety requirements and the application are
considered. When even just one of the light curtain beams is
interrupted, the test machine is immediately stopped.
Advantages:
the SG2 light curtain meets the customer's needs when easy access is necessary in presence of
machine stops. Easy installation, configuration and use are other advantages.
Example 3: Automatic warehouses
Operator protection in automatic warehouses.
Solution:
the SG2 safety light curtain series represents the ideal solution if the safety requirements and the
application are considered. When even just one of the light curtain beams is interrupted, the carousel
is immediately stopped.
Advantages:
the SG2 light curtain meets the customer's needs when easy access is necessary in presence of
machine stops. Easy installation, configuration and use are other advantages.
SG2 BASE Instruction Manual
10
1.5. Safety information
For a correct and safe use of the safety light curtains of the SG2 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 per par. 1.1.3, and during all working cycle phases.
Mounting and connection of the safety light curtain must be carried out only by qualified personnel,
according to the indications included in the special sections (refer to sections 2; 3; 4; 5) and in the
applicable Standards.
The safety light curtain must be securely installed in a particular position so that access to the
dangerous zone is not possible without the interruption of the beams (see section 2 “Installation
mode”).
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.
Instruction Manual SG2 BASE
11
2. INSTALLATION MODE
2.1. Precautions to be observed for the choice and installation of the device
Make sure that the protection level assured by the SG2 device (Type 2) is compatible with the real
danger level of the machine to be controlled, according to EN 954-1 and EN13849.
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 section
10 “Technical data”.
Do not place the device near intense and/or flashing light sources and, in particular, close to receiving
unit front surface.
The presence of intense electromagnetic disturbances could affect device correct operation. This
condition shall be carefully assessed by seeking the advice of DATALOGIC AUTOMATION 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.
SG2 BASE Instruction Manual
12
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.5a 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.5b) becomes necessary.
Fig.5a
Fig.5b
Under standard operating conditions, machine starting must not be possible while operators are inside
the dangerous area.
NO
YES
Instruction Manual SG2 BASE
13
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.6b).
If the operator is able to enter the dangerous area, an additional mechanical protection must be
mounted to prevent the access.
Fig.6a
Fig.6b
2.2.1. Minimum installation distance
Refer to par.1.3.3. “Minimum installation distance”
NO
YES
SG2 BASE Instruction Manual
14
2.2.2. 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 compromise the recognition of an object inside the
controlled area.
However, 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.
Fig. 7
Instruction Manual SG2 BASE
15
It is thus 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 opening angle of ESPE (EAA); in particular:
for ESPE type 2 EAA = 10° ( = 5°)
Diagram of Fig. 8 shows the min. distance from the reflecting surface (Dsr), based on the operating
distance:
Fig. 8
The formula to get Dsr is the following:
Dsr
(m) = 0.27 for oper. distances < 3 m
Dsr (m) = 0,5 operating distance (m) x tg 2 for oper. distances 3 m
ESPE
Type 2
O
perating distance
Di
stance
f
rom re
fl
ect
i
ng sur
f
ace
(D
sr
)
SG2 BASE Instruction Manual
16
2.2.3. Emitter and receiver orientation
The two units shall be installed parallel to each other, with the beams orthogonal respect to the
emitting and receiving directions, with the connectors positioned in the same manner.
The configurations shown in Fig. 9 must be avoided:
Fig.9
NO
NO
Instruction Manual SG2 BASE
17
2.2.4. Installation of several adjacent safety light curtains
When several safety devices must be installed in adjacent areas, interferences between the emitter of
one device and the receiver of the other must be avoided.
Fig.10 provides an example of possible interferences between different devices and two pertinent
solutions.
Fig.10
NO
YES
YES
RX
TX
SG2 BASE Instruction Manual
18
2.2.5. 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.11 shows a possible solution to control three different access sides, using two mirrors placed at
45° with respect to the beams.
Fig. 11
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 a very small mirror displacement is enough to lose alignment. The use of the
DATALOGIC AUTOMATION 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).
The following table shows the operating distances relating to the number of mirrors used.
number of mirrors operating distance
1 16.5 m
2 13.7 m
3 11.6 m
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.
Instruction Manual SG2 BASE
19
2.2.6. 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 (
) intercepting the beams along the protected area using the specific test
piece, following the Fig.12 scheme.
TP30 for light curtains with 30 mm resolution: SG2-30-XX-X
TP50 for light curtains with 30 mm resolution: SG2-50-XX-X
TP90 for light curtains with 30 mm resolution: SG2-90-XX-X
Fig. 12
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 causes the opening of the OSSD outputs (red LED 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 section 2 “Installation
modes”).
The safety distance between the dangerous parts and ESPE must comply with the requirements
indicated in section 2 “Installation modes”.
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.
SG2 BASE Instruction Manual
20
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 section 10 “Technical data”).
The two units must be positioned the most aligned and parallel possible.
The next step is the fine alignment, as shown in section 5 “Alignment Procedure”.
Two types of brackets can be used to fix the two units:
Angled fixing brackets
Angled fixing brackets are supplied with all SG2-B models (Fig.13).
Adjustable supports for correcting unit inclination on the axes are available on request (see section.14
“Accessories”).
For fixing with angled brackets, refer to Fig.13.
Fig. 13
Instruction Manual SG2 BASE
21
Rotating brackets
Rotating brackets (Fig.14), available upon request, can be used as an alternative or together with
angled brackets.
For fixing with rotating bracket, refer to Fig.14.
Fig. 14
In case of applications with particularly strong vibrations, vibration dampers, together with mounting
brackets, are recommended to reduce the impact of the vibrations.
Fig. 15
The recommended mounting positions according to the light curtain length are shown in Fig.15 and in
the following table.
SG2 BASE Instruction Manual
22
MODELS L (mm) A (mm) B (mm) C (mm)
SG2-30-015-OO-X
216.3 108 54 -
SG2-kk-030-OO-X
366.2 216 75 -
SG2-kk-045-OO-X
516.3 316 100 -
SG2-kk-060-OO-X
666.2 366 150 -
SG2-kk-075-OO-X
816.3 466 175 -
SG2-kk-090-OO-X
966.2 566 200 -
SG2-kk-105-OO-X
1116.2 666 225 -
SG2-kk-120-OO-X
1266.3 966 150 483
SG2-kk-135-OO-X
1416.2 1066 175 533
SG2-kk-150-OO-X
1566.3 1166 200 583
SG2-kk-165-OO-X
1716.3 1266 225 633
SG2-kk-180-OO-X
1866.3 1366 250 683
kk = Resolution (30mm – 50 mm – 90 mm)
Instruction Manual SG2 BASE
23
4. ELECTRICAL CONNECTIONS
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-pole connector is used, while for emitter
a M12 4-pole connector is used.
RECEIVER (RX):
4
5
3
1
2
0 V
OSSD1
TEST/RESET
+24 VDC
OSSD2
1 = brown = +24 VDC
2 = white = OSSD 1
3 = blue = 0 V
4 = black = OSSD 2
5 = grey = TEST/RESET
EMITTER (TX):
3
4
2 1
NOT USED
0 V
+24 VDC
NOT U SED
1 = brown = +24 VDC
2 = white = NOT USED
3 = blue = 0 V
4 = black = NOT USED
SG2 BASE Instruction Manual
24
4.1. Notes on connections
For the correct functioning of the SG2 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;
The TEST/RESET wire must be connected through a N.O. button to the supply voltage of the ESPE.
The TEST/RESET button must be located in such a way that the operator can check the protected
area during any Test and Reset operation. (see section 6 “Functioning mode”).
The device is protected internally against overvoltage and overcurrent. The use of other external
components is not recommended.
Example: connection with safety relay
The figures show the connection between the safety light curtains and the safety relay of the SE-SR2
series functioning in the Automatic Start mode (left side) and Manual Start 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 (Fig.16).
If one of these configurations is erroneously used, the device enters into the output failure condition
(see section 7 “Diagnostic functions”).
Instruction Manual SG2 BASE
25
Connect both OSSDs to the activating device. Failure to connect an OSSD to the activating device
jeopardises the system safety degree that the light curtain has to control
Fig. 16 Fig. 17
Fig. 18 Fig. 19
YES
NO
NO
NO
SG2 BASE Instruction Manual
26
4.2. Earth connection
SG2 safety light curtain units are preset for easy ground connection. A special compartment,
positioned onto caps and marked with the special symbol shown in Figure 20, allows connection with
ground cable by means of an additional screw coming with the equipment.
Fig. 20
Ground connection configuration is the most common and guarantees the best immunity against
electromagnetic disturbances. SG2-E 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-B electrical protections.
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
Instruction Manual SG2 BASE
27
5. ALIGNMENT PROCEDURE
The alignment between the emitting and the receiving units is necessary to obtain the correct
functioning 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.
Fig.21
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.
Receiver
Emitter
Fig. 22
last optics (LAST
)
first optics = synchronisation optics (SYNC
)
LAST
SYNC
ON
NORMAL
OP.
SAFE(BREAK)
NORMAL
OP.
SG2 BASE Instruction Manual
28
The standard installation described hereinafter is the one shown in Fig. 22, i.e. with the bar assembled
with the connectors pointing down.
Two yellow LEDs (
LAST, SYNC) on SG2 receiver, facilitates the alignment procedure. During
standard operation, the LEDs indicate the safety light curtain status, as shown in the table.
FUNCTIONING STATUS
LED colour
Symbol
Normal
Status
NORMAL OP.
Stop
Status
SAFE(BREAK)
Yellow
OFF ON OFF OFF
Yellow
OFF ON ON OFF
Red
OFF ON ON ON
Green
ON OFF OFF OFF
- Standard
condition:
- Not interrupted
beams
- Units not aligned
- Top side not
aligned
- Highest beam
interrupted
- Bottom side
not aligned
-
Lowest beam
interrupted
Units aligned, but at
least one of beams
(the highest and
lowest excluded) is
interrupted
Instruction Manual SG2 BASE
29
5.1. Correct alignment procedure
The light curtain alignment can be effected only after having completed the mechanical installation and
the electrical connections. The following procedure has to be followed:
Check the green LED (
) and the yellow LED ( ) on the TX unit. If ON, the emitter is running
correctly;
Verify that the sensitive area from the safety light curtain is free;
Verify that one of the following conditions is present on the RX unit:
1. STANDARD CONDITION - NORMAL OP.
Green LED (
) ON and red LED ( ) OFF.
Both yellow LEDs (
, ) are OFF.
Units are aligned.
2. STOP CONDITION - SAFE (BREAK)
Green LED (
) OFF and red LED ( ) ON.
The status of both yellow LEDs (
, ) does not matter.
Units are not aligned.
Continue with the following steps to pass from condition 2 to condition 1:
- Keep the receiver in a steady position and set the emitter until the yellow LED (
SYNC) is
OFF. This condition shows the effective alignment of the first synchronisation beam.
- Rotate the emitter, pivoting on the lower optics axis, until the yellow LED (
LAST) is OFF.
Under these conditions, the SAFE LED shall turn ON.
NOTE
: Ensure that the green LED is steady ON.
- Delimit the area in which the LED
is steady through some micro adjustments - for the first
and then for the second unit - then place both units in the centre of this area.
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 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.
NOTE
: Passing the Test Piece along the whole sensitive area and at any distance from the two units,
the red LED (
) shall be always ON and never change status.
A daily test is recommended.
SG2 BASE Instruction Manual
30
6. FUNCTIONING MODE
6.1. Reset mode
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
.
The ESPE will automatically restart its standard operation (NORMAL OP. condition ) as soon as
the object is removed.
WARNING:
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. 6b). In this case, the
reset, using for example the manual reset of the SE-SR2 relay, (page 26) might be necessary.
6.2. 6.2. Test function
The TEST function can be activated by keeping a normally open external contact (TEST push-button),
closed for at least 0.5 seconds.
The TEST signal is active high.
6.3. Reset function
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 or OSSD error (See sect. 7 “Diagnostic Functions”)
The RESET function can be activated by keeping a normally open external contact
(RESET/RESTART push-button), closed for at least 5 seconds.
The RESET signal is active high
.
Instruction Manual SG2 BASE
31
7. DIAGNOSTIC FUNCTIONS
7.1. User interface
The operator can visualise the operating condition of the light curtains through the four LEDs
positioned on the receiver unit and two LEDs on the emitter unit.
Fig.23 shows all signalling LEDs modes: OFF, ON and BLINKING.
Fig. 23
LED OFF
LED BLINKING
LED ON
SG2 BASE Instruction Manual
32
7.2. Diagnostic messages
The operator is able to check the main causes of the system stop and failure, using the same LEDs
used for visualising the functions.
For Receiver:
Function Status Meaning LED
TEST
(red ON)
Light curtain being tested, the OSSD status shall be OFF
Emission
(OSSD ON)
(green ON)
Light curtain working and in standard operating conditions
Normal operation
Interruption
(OSSD OFF)
(red ON)
Light curtain working and in safety block conditions.
Function Type Check and repair LED
OSSD error
(yellow and red
BLINKING)
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 AUTOMATION
Internal error
(red ON, yellow
BLINKING)
Switch OFF and switch ON the supply circuit; if the failure
continues contact DATALOGIC AUTOMATION
Optical error
(red ON, yellow
BLINKING)
Reset. If the failure continues contact DATALOGIC
AUTOMATION
Error status
No power supply
(LEDs OFF)
Check connections and input voltage correct value.
If the failure continues contact DATALOGIC AUTOMATION
For Emitter:
Function Status Meaning LED
Test
(green ON)
Light curtain being tested, the OSSD status must be OFF
Normal operation
Emission (green ON
yellow ON)
Light curtain working in normal operating conditions
Function Type Check and repair LED
Internal error
(green ON
yellow BLINKING)
Switch OFF and switch ON the power supply circuit. If the
failure continues contact DATALOGIC AUTOMATION
Optic error
(green ON
yellow BLINKING)
Switch OFF and switch ON the power supply circuit. If the
failure continues contact DATALOGIC AUTOMATION
Error status
No power supply
(LEDs OFF)
Check connections and input voltage value. If the failure
continues contact DATALOGIC AUTOMATION
Instruction Manual SG2 BASE
33
8. PERIODICAL CHECKS
The following is a list of recommended check and maintenance operations that should be periodically
carried out by qualified personnel.
Check that:
The ESPE stays locked (
) during beam interruption along the entire protected area, using the
suitable “Test Piece”. (*)
The ESPE is correctly aligned: by slightly pressing product side, in both directions, the red LED shall
not come ON
.
Enabling the TEST function, the OSSD outputs should open (the red LED
is ON and the
controlled machine stops).
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 section 2 “Installation mode”).
The safety distance between the dangerous areas and the ESPE are in accordance with the
instructions included in section 2 “Installation mode”.
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.
(*) according to the Fig.12 scheme
Verify that:
ESPE remains blocked (
) intercepting the beams along the protected area using the specific test
piece, following the Fig.12 scheme.
TP30 for light curtains with 30 mm resolution: SG2-30-XX-X
TP50 for light curtains with 50 mm resolution: SG2-50-XX-X
TP90 for light curtains with 90 mm resolution: SG2-90-XX-X
SG2 BASE Instruction Manual
34
8.1. General information and useful data
Safety MUST be a part of our conscience.
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 AUTOMATION Customer Service 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 units shall be sent to DATALOGIC AUTOMATION service department.
A power failure caused by interferences may cause the temporary opening of the outputs, but the safe
functioning of the light curtain will not be compromised.
8.2. Warranty
DATALOGIC AUTOMATION guarantees each brand new SG2 system, under standard use conditions,
against manufacturing defects in material and workmanship for a period of 36 (thirty-six) months from
the date of manufacturing.
DATALOGIC AUTOMATION will not be liable for any damages to persons and things caused by
failure to stick to the correct installation modes and device use.
Warranty validity is subject to the following conditions:
User shall notify DATALOGIC AUTOMATION the failure within thirty-six months from product
manufacturing date.
Failure or malfunction shall not have been originated directly or indirectly by:
use for unsuitable purposes;
failure to comply with the intended use prescriptions;
negligence, unskillfulness, wrong maintenance;
repairing, changes, adaptations not made by DATALOGIC AUTOMATION personnel, tampering with
the device, etc.;
accidents or crashes (even due to transportation or by force majeure causes);
other causes not depending from DATALOGIC AUTOMATION
If the device does not work, send both units (receiver and emitter) to DATALOGIC AUTOMATION.
The Customer is responsible for all transport charges and damage risks or material loss during
transport, unless otherwise agreed.
All replaced products and parts become a property of DATALOGIC AUTOMATION.
DATALOGIC AUTOMATION does not accept any warranty or right other than the above-described
ones. No requests for compensation for expenses, activities stop or other factors or circumstances
somehow connected to the failure of the product or one of its parts to operate cannot be put forward
for any reason.
In case of problems, please contact DATALOGIC AUTOMATION Service Department:
Tel.: +39 051 6765611
Fax.: +39 051 6759324
Instruction Manual SG2 BASE
35
9. DEVICE MAINTENANCE
SG2 safety light curtains do not require special maintenance operations.
To avoid the reduction of the operative distance, optics protective front surfaces shall be cleaned at
regular intervals.
To this end, use soft cotton cloths damped in water; do not apply too much pressure onto the surface so
as not to make it dull.
Please do not use on plastic surfaces or light curtain painted surfaces:
alcohol or solvents
wool or synthetic cloths
paper or other abrasive materials
9.1. Product disposal
Under current Italian and European laws, DATALOGIC AUTOMATION is not obliged to take care of
product disposal at the end of its life.
DATALOGIC AUTOMATION recommends to dispose of the product in compliance with local laws or
contact authorised waste collection centres.
SG2 BASE Instruction Manual
36
10. TECHNICAL DATA
The product technical specifications are given below.
ELECTRICAL DATA
Power supply (Vdd):
24 Vdc 20%
Unit current draw (TX): 2 W max
Unit current draw (RX): 3.5 W max (without load)
Outputs: 2 PNP
Short-circuit protection: 1.4 A max
Output current: 0.5 A max / each output
Output voltage – status ON: Vdd –1 V min
Output voltage – status OFF: 0.2 V max
Capacitive load 2.2 uF @ 24Vdc max
Response times: See table below
Protected height: 150..1800mm
Safety category: Type 2
Auxiliary functions: Reset / Test
Electrical protection: Class I / Class III (see sect.4.2)
Connections: M12-4 poles for emitter
M12-5 poles for receiver
Cables length (for power supply): 50 m. max
OPTICAL DATA
Emitting light ( ) :
Infrared, LED (950 nm)
Resolution: 30 - 50 - 90 mm
Operating distance: 0.2…19 m
Ambient light rejection: IEC-61496-2
MECHANICAL AND ENVIRONMENTAL DATA
Operating temperature: -10…+ 55 °C
Storage temperature: -25…+ 70 °C
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
Caps material: PC MAKROLON
Weight (single unit): 1.3 kg / linear metre
Instruction Manual SG2 BASE
37
11. LIST OF AVAILABLE MODELS
Model Protected Height
(mm)
No.
Beams
Response time
(msec)
Resolution
(mm)
SG2-30-015-OO-X 150 8 8 30
SG2-30-030-OO-X 300 16 9 30
SG2-30-045-OO-X 450 24 11 30
SG2-30-060-OO-X 600 32 12 30
SG2-30-075-OO-X 750 40 14 30
SG2-30-090-OO-X 900 48 15 30
SG2-30-105-OO-X 1050 56 17 30
SG2-30-120-OO-X 1200 64 18 30
SG2-30-135-OO-X 1350 72 20 30
SG2-30-150-OO-X 1500 80 21 30
SG2-30-165-OO-X 1650 88 23 30
SG2-30-180-OO-X 1800 96 24 30
SG2-50-030-OO-X 300 9 9 50
SG2-50-045-OO-X 450 13 10 50
SG2-50-060-OO-X 600 17 11 50
SG2-50-075-OO-X 750 21 12 50
SG2-50-090-OO-X 900 25 14 50
SG2-50-105-OO-X 1050 29 15 50
SG2-50-120-OO-X 1200 33 16 50
SG2-50-135-OO-X 1350 37 17 50
SG2-50-150-OO-X 1500 41 18 50
SG2-50-165-OO-X 1650 45 19 50
SG2-50-180-OO-X 1800 49 20 50
SG2-90-030-OO-X 300 5 9 90
SG2-90-045-OO-X 450 7 10 90
SG2-90-060-OO-X 600 9 11 90
SG2-90-075-OO-X 750 11 12 90
SG2-90-090-OO-X 900 13 13 90
SG2-90-105-OO-X 1050 15 14 90
SG2-90-120-OO-X 1200 17 15 90
SG2-90-135-OO-X 1350 19 16 90
SG2-90-150-OO-X 1500 21 17 90
SG2-90-165-OO-X 1650 23 18 90
SG2-90-180-OO-X 1800 25 19 90
SG2 BASE Instruction Manual
38
EN ISO 13849-1
EN 954-1
EN IEC 61508
EN IEC 62061
Prob. of danger
failure/hour
Life span
Mean Time to
Dangerous Failure
Average Diagnostic
Coverage
Safe Failure Fraction
Hardware Fault
Tolerance
Product PL CAT SIL SIL CL
PFHd
(1/h)
T1
(years)
MTTFd
(years)
DC SFF HFT
SG2-30-015-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-030-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-045-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-060-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-075-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-090-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-105-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-120-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-135-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-150-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-165-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-30-180-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-030-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-045-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-060-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-075-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-090-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-105-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-120-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-135-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-150-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-165-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-50-180-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-030-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-045-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-060-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-075-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-090-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-105-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-120-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-135-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-150-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-165-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
SG2-90-180-OO-X d 2 2 2 1,04E-08 20 273 97,50% 98,40% 0
Instruction Manual SG2 BASE
39
12. OVERALL DIMENSIONS
38
L2
50.5
14
L1
Ø16
12.5
M12
32.3
36.9
M2 n°3
x2
Ø16
MODEL L
1
L
2
SG2-30-015-OO-X
233.3 153.3
SG2-kk-030-OO-X
383.2 303.2
SG2-kk-045-OO-X
533.2 453.3
SG2-kk-060-OO-X
683.2 603.2
SG2-kk-075-OO-X
833.2 753.3
SG2-kk-090-OO-X
983.2 903.2
SG2-kk-105-OO-X
1133.2 1053.2
SG2-kk-120-OO-X
1283.3 1203.3
SG2-kk-135-OO-X
1433.2 1353.2
SG2-kk-150-OO-X
1583.3 1503.3
SG2-kk-165-OO-X
1733.3 1653.3
SG2-kk-180-OO-X
1883.3 1803.3
kk = Resolution (30mm – 50 mm – 90 mm)
SG2 BASE Instruction Manual
40
13. OUTFIT
Angled fixing bracket
Instruction Manual SG2 BASE
41
13.1. Angled fixing bracket mounting
MOUNTING A
MOUNTING B
Angled fixing bracket
Angled fixing bracket + Adjustable support
Angled fixing bracket + Antivibration support
Angled fixing bracket + Adjustable support + Antivibration support
MODEL
DESCRIPTION
ST-KSTD
Fixing brackets for angle mounting (4 pcs kit)
ST-K4AV
Antivibration support (4 pcs kit)
ST-K6AV
Antivibration support (6 pcs kit)
ST-K4OR
Supporti orientabili (kit 4pz.)
ST-K6OR
Supporti orientabili (kit 6pz.)
SG2 BASE Instruction Manual
42
14. ACCESSORIES
14.1. Rotating fixing bracket
MODEL DESCRIPTION
CODE
ST-K4ROT Rotating fixing bracket (kit 4pz.)
95ASE1280
Instruction Manual SG2 BASE
43
14.2. Deviating mirrors
MODEL DESCRIPTION CODE
SG-DM 150 Deviating mirror version 150 mm 95ASE1670
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
SG2 BASE Instruction Manual
44
14.3. Columns and floor stands
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
Instruction Manual SG2 BASE
45
14.4. Protective stands
Ø6.6 N°2
sp.2
100
86
sm.50x45° N°4
6060
MODEL DESCRIPTION L (mm) CODE
SE-P 150 Protective stand H = 273 mm 273
95ACC1780
SE-P 300 Protective stand H = 420 mm 420
95ACC1790
SE-P 450 Protective stand H = 567 mm 567
95ACC1800
SE-P 600 Protective stand H = 714 mm 714
95ACC1810
SE-P 750 Protective stand H = 861 mm 861
95ACC1820
SE-P 800 Protective stand H = 969 mm 969
95ACC1830
SE-P 900 Protective stand H = 1069 mm 1069
95ACC1840
SE-P 1050 Protective stand H = 1155 mm 1155
95ACC1850
SE-P 1200 Protective stand H = 1302 mm 1369
95ACC1860
SE-P 1350 Protective stand H = 1449 mm 1449
95ACC1870
SE-P 1500 Protective stand H = 1596 mm 1596
95ACC1880
SE-P 1650 Protective stand H = 1743 mm 1743 95ACC1890
14.5. Test piece
MODEL DESCRIPTION CODE
TP-30 Test piece Ø 30 mm
95ASE1650
TP-50 Test piece Ø 50 mm
95ASE1790
TP-90 Test piece Ø 90 mm
95ASE1800
SG2 BASE Instruction Manual
46
14.6. Connection cables
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
CS-A1-03-U-03
5-pole M12 cable (axial) 3 m 95ASE1170
CS-A1-03-U-05
5-pole M12 cable (axial) 5 m 95ASE1180
CS-A1-03-U-10
5-pole M12 cable (axial) 10 m 95ASE1190
CS-A1-03-U-15
5-pole M12 cable (axial) 15 m 95ASE1200
CS-A1-03-U-25
5-pole M12 cable (axial) 25 m 95ASE1210
CS-A1-06-U-03
8-pole M12 cable (axial) 3 m 95A252700
CS-A1-06-U-05
8-pole M12 cable (axial) 5 m 95ASE1220
CS-A1-06-U-10
8-pole M12 cable (axial) 10 m 95ASE1230
CS-A1-06-U-15
8-pole M12 cable (axial) 15 m 95ASE1240
CS-A1-06-U-25
8-pole M12 cable (axial) 25 m 95ASE1250
Instruction Manual SG2 BASE
47
14.7. Safety relay
The drawing shows the connection between the safety light curtain and the Type 4 safety relay of the
SE-SR2 series functioning in the automatic Start mode (left side) and manual Start with monitoring (right
side).
MODEL DESCRIPTION CODE
SE-SR2 Type 4 safety relay - 3 NO 1NC 95ACC6170
SG2 BASE Instruction Manual
48
15. GLOSSARY
ACTIVE OPTOELECTRONIC PROTECTIVE DEVICE (AOPD): 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.
BLOCK CONDITION (=BREAK): status of the light curtain taking place when a suitably-sized opaque
object (see DETECTING CAPACITY) 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.
CONTROLLED MACHINE: machine having the potentially-dangerous points protected by the light
curtain or by another safety system.
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.
DANGEROUS AREA: area representing an immediate or imminent physical hazard for the operator
working inside it or who could get in contact with it.
DETECTING CAPACITY (= RESOLUTION): limit of the parameter of the sensor function specified by
the supplier, that will enable the electrosensitive protective equipment (ESPE). In case of an active
optoelectronic protective device (AOPD), with resolution we mean the minimum dimension, which an
opaque object must have in order to interrupt at least one of the beams that constitute the sensitive
area.
ELECTROSENSITIVE PROTECTIVE EQUIPMENT (ESPE): 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.
EMITTER: 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.
FINAL SWITCHING DEVICE (FSD): part of the control system connected to machine safety and
breaking the circuit towards machine primary command element (MPCE) when the output signal
switching device (OSSD) reaches the inactive condition.
MACHINE OPERATOR: qualified person authorised for machine use.
MACHINE PRIMARY COMMAND ELEMENT (MPCE): 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.
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. The factors
affecting min. installation distance value are: machine stop time, safety system overall response time,
barrier resolution.
N.O.: normally opened
N.C.: normally closed
OFF STATUS: status when the output circuit is interrupted and does not allow current stream.
ON STATUS: status when the output circuit is operational and allows current stream.
Instruction Manual SG2 BASE
49
OUTPUT SIGNAL SWITCHING DEVICE (OSSD): part of the electrosensitive protective equipment
(ESPE) connected to machine control system that, when the sensor is triggered during standard
operating mode, is switched to the inactive status.
PROTECTED AREA: area where a specified test object is detected by the ESPE.
PROTECTIVE DEVICE: device having the function to protect the operator against possible risks of
injury due to the contact with machine potentially-dangerous parts.
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 of the product
and to carry out periodical test procedures.
RECEIVER: 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.
RESPONSE TIME: max. time elapsing between the occurrence of the event leading to sensor activation
and the reaching of the inactive state by the output signal switching device (OSSD).
RESTART INTERLOCK (= 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.
RISK: probability of occurrence of an injury and severity of the injury itself.
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.
START INTERLOCK (= START): device preventing machine automatic start when the ESPE is
powered, or when the power supply is cut and then restored.
TEST PIECE: opaque object having a suitable size and used to test safety light curtain correct
operation.
TYPE (OF ESPE): the Electrosensitive 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 IEC 61496-1) defines the minimum requirements needed for ESPE design,
manufacturing and testing.
WORKING POINT: machine position where the material or semifinished product is worked.
www.automation.datalogic.com
Loading...