ipf electronic OY36 User guide

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Original Instruction Manual Safety Light Curtain OY36
Devices for bodyprotection
Safety Category Type 4
Simple installation and configuration
Diagnostics inside
Compact profile (35x41,2xlength)
Short response time
Self testing
Connection with M12-Connector

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TABLE OF CONTENTS
1. GENERAL INFORMATION......................................................................................3
1.1. General Description of the safety light curtains.........................................................3
1.1.1. Package contents.....................................................................................................4
1.2. How to choose the device.........................................................................................5
1.2.1. Resolution ................................................................................................................5
1.2.2. Controlled height ......................................................................................................6
1.2.3. Minimum installation distance ..................................................................................6
1.3. Typical applications ..................................................................................................7
1.4. Serial Number .......................................................................................................... 7
1.5. Safety information ....................................................................................................8
2. INSTALLATION MODE ...........................................................................................9
2.1. Precautions to be observed for the choice and installation ....................................... 9
2.2. General information on device positioning .............................................................. 10
2.2.1. Minimum installation distance................................................................................. 10
2.2.2. Minimum distance form reflecting surfaces............................................................. 11
2.2.3. Distance between homologous devices.................................................................. 13
2.2.4. Emitter and receiver orientation.............................................................................. 15
2.2.5. Use of deviation mirrors.......................................................................................... 15
2.2.6. Controls after first installation ................................................................................. 16
3. MECHANICAL MOUNTING ................................................................................... 17
4. ELECTRICAL CONNECTIONS..............................................................................20
4.1. Notes on connections ............................................................................................. 21
5. ALIGNMENT PROCEDURE ..................................................................................24
5.1. Correct light curtain alignment procedure ............................................................... 24
6. FUNCTIONING MODE........................................................................................... 25
6.1. DIP-switch selectable functions .............................................................................. 25
6.2. Standard configuration ........................................................................................... 26
6.3. Reset mode............................................................................................................ 26
6.4. Test function........................................................................................................... 28
6.5. Reset function ........................................................................................................ 29
6.6. EDM function.......................................................................................................... 30
7. DIAGNOSTIC FUNCTIONS ...................................................................................31
7.1. Visualisation of the functions .................................................................................. 31
7.2. Alignment mode ..................................................................................................... 31
7.3. Operating mode...................................................................................................... 31
7.4. Fault and diagnostic messages .............................................................................. 32
8. PERIODICAL CHECKS ......................................................................................... 34
8.1. Maintenance........................................................................................................... 34
8.2. General information and usefull data ...................................................................... 34
8.3. Warranty................................................................................................................. 35
9. TECHNICAL DATA................................................................................................ 36
10. LIST OF AVAILABLE MODELS ............................................................................ 37
11. OVERALL DIMENSIONS.......................................................................................38
12. OUTFIT ..................................................................................................................39
12.1. Angled fixing bracket mounting............................................................................... 40
13. ACCESSOIRES .....................................................................................................41
14. GLOSSARY ...........................................................................................................47
15. EC-DECLARATION OF CONFORMITY................................................................. 50

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1. GENERAL INFORMATION
1.1. General Description of the safety light curtains
The safety light curtains of the OY36 series are optoelectronic multibeam devices that are used
to protect working areas that, in presence of machines, robots, and automatic systems in gen-
eral, can become dangerous for operators that can get in touch, even accidentally, with moving
parts.
The light curtains of the OY36 series are Type 4 intrinsic safety systems used as accident-
prevention protection devices and are manufactured in accordance with the international
Standards in force for safety, in particular:
EN 61496-1: 2015 Safety of machinery - Electro-sensitive protective equipment - Part 1:
General requirements and tests
EN 61496-2: 2013 Safety of machinery - Electro-sensitive protective equipment - Part 2:
Particular requirements for equipment using active opto-electronic
protective devices
The device, consisting of one emitter and one receiver housed inside strong aluminium pro-
files, 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 con-
nections 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 electri-
cal connection between the two units is required.
The microprocessors guarantee the check and the management of the beams that are sent
and received through the units: the microprocessors –through some LEDs –inform the oper-
ator about the general conditions of the light curtain and about eventual faults (see section 7
“Diagnostic functions”).
During installation, two yellow LEDs facilitate the alignment of both units (see section 5 “Align-
ment procedures”).
As soon as an object, a limb or the operator’s body accidentally interrupts the beams sent by
the emitter, the receiver immediately opens the OSSD output and blocks the machine (if cor-
rectly connected to the OSSD).
Note: The following abbreviations, defined by the Standards in force, will be used in this
manual:
AOPD Active opto-electronic protective device
ESPE Electro-sensible protective equipment
OSSD Output signal switching device
TX Transmitter
RX Receiver
EDM External Devices Monitoring

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Some parts or sections of this manual containing important information for the user or in-
stalling 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 regard 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 information necessary for the selection and operation of the safety
devices.
However, special knowledge not included in this technical description is required for the plan-
ning 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 con-
tact the technical service of ipf electronic for any necessary information relative to the func-
tioning of the OY36 light curtains and the safety rules that regulate the correct installation.
1.1.1. Package contents
Package contains the following objects:
•Receiver (RX)
•Emitter (TX)
•Installation Quick Guide of OY36 curtain
•CD with instruction manual and other documents
•4 angled fixing brackets and specific fasteners

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1.2. 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:
1.2.1. 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.
As shown in Fig.1, the resolution only depends on the geometrical characteristics of the
lenses, diameter and distance between centres, and is independent of any environmental
and operating conditions of the safety light curtain.
Fig. 1
The resolution value is obtained applying the following formula:
R = I + d
where:
I = Distance between two adjacent optics
d = Lense Diameter
The following table shows the values of the optic interaxis (I), the resolution (R) and the optic
diameter (d), of the safety light curtains.
Article-No.
Optic in-
teraxis [mm]
(I)
Number of
Optics (n)
Resolution [mm]
(R)
Ø Optics [mm]
(d)
Operating
distance
[m]
OY360110
500
2
515
15
0.5 … 50
OY360111
400
3
415
15
0.5 … 50
OY360112
300
4
315
15
0.5 … 50
OY360113
400
4
415
15
0.5 … 50

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1.2.2. Controlled height
It is important to distinguish between “Height of the sensitive area” and “Height of the con-
trolled area” (see Fig.2).
- The height of the sensitive area is the distance between the lower and the upper limits
respectively of the first and the last lens.
- The height of the controlled area is the effectively protected area; it delimits the area
where an opaque object with larger or equal dimensions respect to the resolution of the
safety light curtain may certainly cause the interruption of a beam.
Fig. 2
1.2.3. Minimum Installation Distance
It is important to carefully calculate the distance between the point where the safety device
will be placed and the possible danger associated with the machine to be protected (see
section 2 "Installation mode"for the calculation of the safety distance).

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1.3. Typical applications
The OY36 safety light curtains of the series are used in all automation fields where control and
protection of the access to dangerous zones is necessary.
In particular they are used to stop the moving mechanical parts in:
- Palletisers / depalletisers;
- Packaging machines, handling machines, storing machines;
- Automatic and semi–automatic assembly lines;
- Automatic warehouses;
- Robotics.
In food industry applications, ipf electronic 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.
1.4. Serial Number
The serial number is printed on the backside of the device.
Make sure that the assigned pair (transmitter –receiver) is provided with the same serial
number
The serial number consists of 9 positions:
S Y Y M# # # # #
Manufacturing Pole:
B = Italien
H = Ungarn
- - -
Manufacturing Year:
10 = 2010
11 = 2011
12 = 2012
- - -
5 digit progressive
serial number for
manufaturing pole,
to be reset at every
month beginning
Manufacturing Month
A = January
B = February
C = March
D = April
E = May
F = June
G = July
H = August
I = September
L = October
M = November
N = December

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1.5. Safety Information
The following points must be observed for a correct and safe use of the OY36 safety de-
vice:
•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 1.3.3, and during all working
cycle phases.
•Mounting and connection of the safety light curtain must be carried out by qualified
personnel only, according to the indications included in the special sections (refer to
sections 2; 3; 4; 5; 6) 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 sec-
tion 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 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.
•The function of the external device monitoring (EDM) is active only if the specific wire
is correctly connected to the device. Please carefully read the instructions for the cor-
rect functioning before powering the light curtain.
•Please carefully read the instructions for the correct functioning before powering the
light curtain.

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2. INSTALLATION MODE
2.1. Precautions to be observed for the choice and installation
Make sure that the protection level assured by the OY36 device (Type 4) is compatible with
the real danger level of the machine to be controlled, according to EN 954-1 and EN 13849-
1.
•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 indi-
cated in section 9 "Technical Data".
•Do not install device near strong and/or flashing light sources or close to similar devices.
•The presence of intense electromagnetic disturbances could jeopardise device function-
ing. This condition shall be carefully assessed by seeking the advice of ipf electronic Tech-
nical 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 gener-
ate a small condensation layer on the lenses and so jeopardise functioning.

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2.2. General information on device positioning
The safety light curtain should be carefully positioned, to reach a very high protection stand-
ard. Access to the dangerous area must only be possible by passing through the protecting
safety light beams.
2.2.1 Minimum installation distance
The safety device must be placed at a specific safety distance (Fig.3). This distance must
ensure that the danger zone cannot be reached before the dangerous motion of the ma-
chine has been stopped by the ESPE.
The safety distance depends on 4 factors, according to the EN 999, 775 and 294 Stand-
ards:
1 Response time of the ESPE (the time between the effective beam interruption and the
opening of the OSSD contacts).
2 Machine stopping time (the time between the effective opening of the contacts of the
ESPE and the real stop of the dangerous movement of the machine).
3 ESPE resolution.
4 Approaching speed of the object to be detected.
Fig. 3
The following formula is used for the calculation of the safety distance:
S = K (t1 + t2) + C
where:
S = Minimum safety distance in mm.
K = Speed of the object, limb or body approaching the dangerous area in mm/sec.
t1 = Response time of the ESPE in seconds (see section 9 "Technical data")
t2 = Machine stopping time in seconds.
d = Resolution of the system.
C = 850 mm for device with resolution > 40mm.

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Note: The value of K is:
2,000mm/s if the calculated value of S is ≤ 500mm
1,600mm/s if the calculated value of S is > 500mm
When devices with > 40mm resolution are used, the height of the top beam has to be ≥ 900mm
(H2) while the height of the bottom beam has to be ≤300mm (H1).
2.2.2. Minimum distance from reflecting surfaces
Reflecting surfaces placed near the light beams of the OY36 device (over, under or laterally) can
cause passive reflections. These reflections can compromise the recognition of an object inside the
controlled area (see Fig.4).
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. 4
It is thus important to position the safety light curtain according to the minimum distance from re-
flecting surfaces.

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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 aperture angle of ESPE (EAA); especially:
for ESPE type 4 EAA = 5° (α = ± 2,5°)
Diagram of Fig. 5 shows the minimum distance from the reflecting surface (Dsr), based on
the operating distance:
Fig. 5
The formula to get Dsr is the following
•Dsr (m) = 0,15 for operating distances < 3m
•Dsr (m) = 0,5 x operating distance (m) x tan 2αfor operating distances 3m

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2.2.3. Distance between homologous devices
If different safety devices have to be installed in adjacent areas, the emitter of one device
must not interfere dangerously with the receiver of the other device.
The TXBinterfering device must be positioned outside a minimum Ddo distance from the TXA
–RXAemitter-receiver couple axis.
Fig. 6
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 graphic shows the distance from the interfering devices (Ddo) according to the
operating distance (Dop) of the couple ( TXA–RXA).
Fig. 7
The following table shows, for convenience, the values of the minimum installation dis-
tances relative to some operating distances:
Operating distance
(m)
Minimum installation
distance (m)
3
0.30
6
0.50
10
0.65
19
0.80

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WARNING: the interfering device (TXB) must be positioned at the same Ddo distance, cal-
culated as shown above, even if closer to TXArespect 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.
Fig. 8 provides two examples:
Fig. 8
TX
YES
NO
YES
RX
TX

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2.2.4. 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 orientated towards the same
direction.
The configurations shown in Fig. 9 must be avoided:
Fig. 9
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.10 shows a possible solution to control three different access sides, using two mirrors
placed at 45° respect to the beams.
Fig. 10
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 devi-
ating mirrors are used. Even a very small angular displacement of the mirror is enough to
loose alignment. A laser pointer (available as an accessory) can be used to avoid this
problem.
•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 make refer
to the technical specifications of the mirrors used).
NO NO

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•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 re-
duction in the range.
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 di-
rectly 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.11 scheme.
Fig. 11
•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 controller 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 mode").
•The safety distance between the dangerous parts and ESPE must comply with the
requirements indicated in section 2 "Installation mode".
•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 unpro-
tected area.
•ESPE must not be disturbed by external light sources, ensuring that it remains in nor-
mal 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.

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3. MECHANIAL MOUNTING
The emitting (TX) and receiving (RX) bars 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 9 "Technical data").
Once positioned the two units, the two bars should be aligned and parallel as much as possible.
The next step, if necessary, is the fine alignment, as shown in section 5 "Alignment proce-
dures".
To mount the device, use the threaded pins supplied, inserting them into the slots on the two
bars.
Angled fixing brackets
Angled fixing brackets are sup-
plied with all OY36 models
(Fig.12).
Fixing brackets can be used
where no large mechanical com-
pensation is required during the
alignment operation.
Adjustable supports for correcting
unit inclination on the axes are
available on request (see section
13 "Accessories").
For fixing with angled brackets,
refer to Fig.12.
Fig. 12

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Rotating brackets
Should it prove necessary to adjust the angular position of the light curtain, it is recommended
to use the AO000249 rotating mounting brackets, which, thanks to the cylindrical surfaces of
the caps, allow the product to rotate 360° around its own axis.
For further information, please refer to chapter 13 "Accessories".
Fig. 13
The rotating supports for the correction of the bar inclination of ±5° max. are available on
request (see section 13 "Accessories").
In case of applications with particularly strong vibrations, anti-vibration shock absorbers, to-
gether with threaded pins, rigid brackets and/or rotating supports, are recommended to re-
duce the impact of the vibrations.
Fig. 14

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The recommended mounting positions according to the light curtain length are shown in Fig.15
and in the following table.
Fig. 15
MODEL
L* (mm)
A (mm)
B (mm)
C (mm)
OY360110
653
342
150
-
OY360111
953
542
200
-
OY360112
1,053
602
220
-
OY360113
1,353
942
200
472

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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- connector 8-pin is
used, while for emitter a M12- connector 4-pin is used.
RECEIVER (RX):
1 = white = TEST / START
2 = brown = +24V DC
3 = green = NOT USED
4 = yellow = EDM
5 = grey = OSSD 1
6 = pink = OSSD 2
7 = blue = 0V
8 = red = NOT USED
Transmitter (TX):
1 = brown = +24 VDC
2 = white = NOT USED
3 = blue = 0V
4 = black = NOT USED