Használati útmutató IFM OY446S

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Letöltés PDF
Oldal 1/117
704860 / 04 12 / 2018
Original operating instructions
Photoelectric safety sensors
(safety light curtain / safety light grid)
with IP69K protective tube
Protected area width (range) 0...15 m
OY4xxS
UK
2
Contents
1 Preliminary note 4
...................................................................................................
1.1 Symbols used 4
................................................................................................
1.2 Warning signs used 4
.......................................................................................
2 Safety instructions 5
...............................................................................................
2.1 Safety-related requirements regarding the application 6
..................................
3 Items supplied......................................................................................................7
4 Functions and features 7
........................................................................................
5 Function ...............................................................................................................
8
6 Installation............................................................................................................9
6.1 Installation instructions 9
..................................................................................
6.2 Calculation of the minimum safety distance ................................................
11
6.3 Vertical installation of the safety light curtains / light grids 12
...........................
6.3.1 Safety light curtains: resolution 30 mm 12
...............................................
6.3.2 Safety light grids 2, 3 and 4 beams 13
....................................................
6.4 Horizontal installation of the safety light curtains 13
.........................................
6.5 Fixing and optical alignment 14
........................................................................
6.5.1 Optical alignment 14
................................................................................
6.6 Distance of reflective surfaces 15
.....................................................................
6.7 Multiple systems 17
..........................................................................................
6.8 Use of corner mirrors 18
...................................................................................
7 Electrical connection 19
..........................................................................................
7.1 Wiring diagram transmitter...........................................................................19
7.2 Wiring diagram receiver 20
...............................................................................
8 Operating modes 21
...............................................................................................
8.1 Automatic operation 22
.....................................................................................
8.2 Manual operation 22
.........................................................................................
8.3 Connection of external feedback contacts 23
..................................................
8.4 Test function 23
.................................................................................................
8.4.1 Internal test function 23
...........................................................................
9 Operating and display elements 24
........................................................................
9.1 LED indicators for optical alignment 24
............................................................
9.1.1 Alignment in the automatic mode 24
.......................................................
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9.1.2 Alignment in the manual mode 25
...........................................................
9.2 LED states 26
...................................................................................................
10 Operation .........................................................................................................
27
10.1 Switching state of the outputs 27
....................................................................
10.1.1 The safe state 27
...................................................................................
10.1.2 The switched state 27
............................................................................
10.1.3 Interface classification 27
......................................................................
10.2 Functional test of the safety light curtains 28
.................................................
11 Scale drawing 29
..................................................................................................
11.1 Safety light curtain 29
.....................................................................................
11.2 Safety light grid 30
..........................................................................................
11.2.1 Position of the light beams 31
................................................................
12 Technical Data 32
.................................................................................................
12.1 Heating ......................................................................................................
33
12.2 Safety light curtains: 30 mm resolution 33
......................................................
12.3 Safety light curtains: 40 mm resolution 34
......................................................
12.4 Safety light grids 2, 3 and 4 beams 34
...........................................................
13 Troubleshooting ...............................................................................................
34
13.1 Fault diagnosis transmitter 34
........................................................................
13.2 Fault diagnosis receiver 35
.............................................................................
14 Maintenance, repair and disposal 36
....................................................................
15 Terms and abbreviations 37
..................................................................................
16 Annex ...............................................................................................................
38
16.1 Check list 38
...................................................................................................
4
1 Preliminary note
The instructions are part of the unit. They are intended for authorised persons
according to the EMC and low voltage directives and safety regulations.
The instructions contain information about the correct handling of the product.
Read the instructions before use to familiarise yourself with operating conditions,
installation and operation.
Adhere to the safety instructions.
1.1 Symbols used
►Instructions
> Reaction, result
→Cross-reference
LED off
LED on
LED flashes
Important note
Non-compliance can result in malfunction or interference.
Information
Supplementary note.
Access prevention hand protection
Access prevention bodies or parts of bodies
Primary guarding bodies or parts of bodies
Access prevention body protection
1.2 Warning signs used
WARNING
Warning of serious personal injury.
Death or serious irreversible injuries may result.
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2 Safety instructions
• Follow the operating instructions.
• In case of non-observance of notes or standards, specially when tampering
with and / or modifying the unit, any liability and warranty is excluded.
• The unit must be installed, connected and put into operation by a qualified
electrician trained in safety technology.
• The applicable technical standards for the corresponding application must be
complied with.
• For the installation the standards EN 60204, EN 999 and ISO 13855 have to be
observed.
• In case of malfunction of the unit please contact the manufacturer. Tampering
with the unit is not allowed.
• Disconnect the unit externally before handling it. Disconnect all relay load
circuits that are supplied independently.
• After set-up the system has to be subjected to a complete function check.
• Only use the unit under the specified operating conditions (→ 12 Technical
data). In case of special operating conditions please contact the manufacturer.
• In case of any questions concerning safety - if required - contact the safety
expert in charge of your country.
WARNING
In case of improper handling of the product, the safety and physical
integrity of operators and machinery cannot be guaranteed.
Death or serious irreversible injuries may result.
►Observe all notes on installation and handling in these instructions.
►The photoelectric safety sensors must only be used under the specified
operating conditions and in accordance with use as prescribed below.
6
2.1 Safety-related requirements regarding the application
It must be ensured that the safety requirements of the respective application
correspond to the requirements stated in these instructions.
Observe the following requirements:
► Adhere to the specified operating conditions (→ 12 Technical data). Use of the
photoelectric safety sensors in the vicinity of ionising radiation is not permitted.
Furthermore, their use in the vicinity of chemically and biologically active media
is to be checked, if necessary.
►Material resistance tests of the photoelectric safety sensors with a protective
tube have been carried out for applications in the food industry. For the tested
chemicals see the respective ECOLAB certificate or contact your ifm branch
office.
►Adhere to the principle of normally closed operation for all external safety
circuits connected to the system.
►If the photoelectric safety sensors go into the state defined as safe due to an
internal fault, measures have to be taken to maintain the safe state when the
installation resumes operation.
►Replace damaged units.
The protective function of the photoelectric safety sensors is only ensured with the
following conditions:
• The machine control can be electrically controlled and the hazardous machine
motion can be stopped immediately at any time of the operation cycle.
• There is no danger for machine operators due to ejection of materials or
machine parts.
• The hazardous area is only accessible via the protected area.
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3 Items supplied
• 2 photoelectric safety sensors (1 transmitter and 1 receiver) with IP69K
protective tube
• 1 operating instructions photoelectric safety sensors with IP69K protective
tube, reference number 704860
If one of the above-mentioned components is missing or damaged, please contact
one of the ifm branch offices.
4 Functions and features
transmitter (T) receiver (R)
P = protected area; I = protected area width (range) H = protected area height
The OY4xxS safety light curtains / light grids are multi-beam optoelectronic
protective devices to IEC 61496 and consist of one transmitter and one receiver.
8
5 Function
The protected area (P) is generated between the transmitter and the receiver and
is defined by the protected area height (H) and the protected area width (range)
(I).
The protected area height is the height protected by the safety light curtain / safety
light grid. It depends on the design (→ 12 Technical data).
If the safety light curtains are installed horizontally, this value indicates the depth
of the protected area.
The protected area width (range) is the maximum distance between transmitter
and receiver (→ 12 Technical data).
If the protected area is clear, the two outputs (OSSDs) of the receiver are active.
If an object (O) with a diameter greater than or equal to the resolution (d) enters
the protected area, the outputs are switched off.
The resolution (d) (detection capability) of the safety light curtain depends on the
lens diameter (B) and the lens distance (C) and remains constant at all application
conditions.
transmitter (T) receiver (R)
O = object
C = lens distance
B = lens diameter
d = resolution
 
To ensure that an object (O) is reliably detected in the protected area the
dimensions of the object (O) must be at least as great as the resolution (d).
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6 Installation
6.1 Installation instructions
The following conditions are to be ensured before installation of the photoelectric
safety sensors:
• The degree of protection of the electro-sensitive equipment (ESPE) has to
correspond with the risk assessment of the machine to be monitored.
• The safety system ensures a safety function and is not required for the
operation of a machine.
• It must be possible to stop any hazardous motion of the machine immediately.
In this respect the shutdown delay of the machine has to be determined.
• The object to be detected must be greater than or equal to the resolution of the
photoelectric safety sensor.
Install the photoelectric safety sensors so that the hazardous area can only
be accessed via the protected area. Depending on the application other
mechanical protective equipment may be necessary.
The operating conditions at the mounting location must not affect the functioning
of the photoelectric safety sensors. Please note especially:
• The transmitter and the receiver must not be affected by intensive light sources
(emitters, sunlight etc.).
• The ambient temperature must be within the range indicated (→ 12 Technical
data).
• Fogging of the lenses due to considerable temperature fluctuations can affect
the functioning of the photoelectric safety sensors. Take appropriate measures
to prevent this.
• Certain operating conditions can affect the functioning of the photoelectric
safety sensors. For mounting locations where fog, rain, smoke or dust may
occur, it is recommended to take appropriate measures.
• The standards EN 999 and ISO 13855 must be adhered to.
10
Observe the following illustrations for correct installation of the photoelectric
safety sensors.
Correct installation
Wrong installation
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6.2 Calculation of the minimum safety distance
There must be a minimum safe distance between the photoelectric safety sensor
and the point of danger. This distance must be ensured so that the point of danger
cannot be accessed before the hazardous state of the machine has been stopped.
►Install the photoelectric safety sensor at a distance
that is greater than or equal to the minimum safety
distance (S) so that the hazardous area (A) can
only be accessed after complete standstill of the
hazardous machine motion.
According to the European Standard EN 999:2008 the
following formula is to be used to calculate the minimum
safety distance (S):
S = K (t1 + t2) + C
C = 8 (d - 14)
A = hazardous area
H = protected area height
S = minimum safety distance
C = additional distance
S
Minimum safety distance mm
K
Speed of approach of the object towards the hazardous area mm/s
t1
Total response time of the protective equipment, from release to switching off s
t2
Total response time of the machine, from the stop signal to switching off or to
passing into the state defined as safe
s
C
Additional distance mm
d
Resolution (detection capacity) mm
Non-compliance with the minimum safety distance may lead to restrictions
to or loss of the safety function.
12
Application example:
A = hazardous area
S = min. safety distance
6.3 Vertical installation of the safety light curtains / light grids
6.3.1 Safety light curtains: resolution 30 mm
These designs are suitable for access prevention of hands (hand
protection).
They must not be used for finger protection!
The minimum safety distance (S) is determined using the
following formula:
S = 2000 (t1 + t2) + 8 (d - 14)
This formula applies to minimum safety distances (S)
between 100 and 500 mm. If the calculation shows that S
is greater than 500 mm, the distance can be reduced to a
minimum value of 500 mm by using the following formula:
S = 1600 (t1 + t2) + 8 (d - 14)
A = hazardous area
H = height
S = min. safety distance
G = reference level
If due to the special configuration of the machine it should be possible to reach
the hazardous area from above, the highest light beam of the safety light curtain
should be at a height (H) (measured from the reference level (G)) whose value is
determined to the specifications in ISO 13855.
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6.3.2 Safety light grids 2, 3 and 4 beams
These versions are suitable for access prevention for entire bodies.
They must not be used for the protection of hands or body parts!
The minimum safety distance (S) is determined using the
following formula:
S = 1600 (t1 + t2) + 850
The height (H1) of the upper light beam measured from the
reference level (G) must not be shorter than 900 mm while
the height (H2) of the lowest light beam must not exceed
300 mm (ISO 13855).


A = hazardous area
Hx = height
S = min. safety distance
G = reference level
6.4 Horizontal installation of the safety light curtains
These versions are suitable for primary guarding for bodies or parts of
bodies.
With horizontal installation it has to be noted that the distance between the outer
border of the hazardous area (A) and the outer light beam of the safety light
curtain is greater than or equal to the minimum safety distance (S). It is calculated
as follows:
S = 1600 (t1 + t2) + 1200 – 0.4 H
with H being the height of the protected area of the
reference level (G) of the machine;
H = 15 (d - 50)
In this example the following applies: H < 1 m (to ISO
13855).
A = hazardous area
H = height
S = min. safety distance
G = reference level
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6.5 Fixing and optical alignment
Correct alignment of the transmitter and the receiver is decisive for the
proper function of the photoelectric safety sensors.
►Install the transmitter and the receiver so that they are exactly opposite each
other.
6.5.1 Optical alignment
T R T R T R T T
T = transmitter; R = receiver
►Align the transmitter and the receiver so that they are in parallel at the same
height and the cables face the same direction.
►
Fix the transmitter and the receiver.
The indication LEDs of the receiver help to correctly align the photoelectric safety
sensors. (→ 9.1 LED indicators for optical alignment)
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6.6 Distance of reflective surfaces
Reflective surfaces close to photoelectric safety sensors can disable the
safety function of the system.
The minimum distance (D) depends on the protected area width (I) taking into
consideration the projection and receiving angles.
The minimum distance (D) between reflective surfaces and the protected
area (P) must be observed. In case of non-compliance an object which
has to be detected cannot be sensed. In case of improper handling of
the product, the safety and physical integrity of operators and machinery
cannot be guaranteed.
transmitter (T) receiver (R)
D = minimum distance; I = protected area width (range); P = protected area
►After installation test by intended interruption of the protected area (P) if
reflective surfaces affect the function of the photoelectric safety sensors.
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Minimum distance to reflective surfaces
D = minimum distance in [mm]; I = protected area width (range) [m]
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6.7 Multiple systems
The use of several safety light curtains / safety light grids can lead to
malfunction and disable the protective function.
The safety light curtains / safety light grids are to be installed so that the beam
sent by the transmitter of a system can only be detected by the respective
receiver.
The following important rules for installation are to be observed to avoid mutual
interference of several systems:
Arrangement A Arrangement B
R1 T1 T2 R2 T1 R1
Possible arrangements:
A: Position of both transmitters
next to each other
B: Position transmitter 1 and
receiver 2 on top of each other
C: Combination in "L" shape
Arrangement C
R1
R2 T2
T2 T = transmitter; R = receiver
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6.8 Use of corner mirrors
To protect and monitor hazardous areas with access from several sides one or
several corner mirrors can be used (available as accessory). By using mirrors the
light beam emitted by the transmitter can be sent via several access sides.
►To obtain a reflection angle of 90° the mirrors are to be oriented in an angle of
inclination of 45°.
The following image shows an application where U-shaped access protection is
implemented using two mirrors.
receiver transmitter (R) (T)
A = hazardous area
M = corner mirror
S = minimum safety distance
Dx = side length
►Install the corner mirrors so that the minimum safety distance (S) is adhered to
at each side of the hazardous area.
►During installation make sure that the reflecting area is plane and that no
vibrations affect the safety device.
• The range is the sum of the length of all sides (D1 + D2 + D3) of the access to
the protected area. The maximum range of the photoelectric safety sensors is
reduced by 15% for each mirror.
• Do not use more than three mirrors.
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7 Electrical connection
►
Disconnect power. Also disconnect any independently supplied relay load
circuits.
The nominal voltage is 24 V DC. This voltage may vary between 19.2 V and
28.8 V.
In case of a single fault the operating voltage must not exceed a maximum
of 28.8 V DC. Therefore a safe separation between current supply and
transformer is necessary.
To guarantee functional reliability an output capacity of min. 2000 µF / A has
to be ensured if a power supply with diode bridge is used.
►Connect the units as indicated in the following tables:
7.1 Wiring diagram transmitter
Core colours Name Type Description
brown L+ (24 V DC)
Input
Operating voltage
white Range 0 Configuration protected area width
blue L- (0 V DC) Operating voltage
green Range 1 Configuration protected area width
grey FE Functional earth
red 24 V AC / DC Heating 24 V AC / DC
yellow 0 V DC Heating 0 V DC
pink n.c. not connected
The protected area width (range) to be used is configured via range 0 and
range 1.
Configuration protected area width (range)
Range 0 Range 1 Description
24 V 0 V Selection range low (0...7 m)
0 V 24 V Selection range high (3...15 m)
0 V 0 V Transmitter in test function (→ 8.4 Test function)
24 V 24 V No function, configuration error
For proper function of the safety light curtains the white and green cores
of the transmitter have to be connected according to the indications in the
above table.
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7.2 Wiring diagram receiver
Core colours Name Type Description
white OSSD1 Output Static safety-related output 1
brown 24 V DC – Operating voltage 24 V DC
green OSSD2 Output Static safety-related output 2
yellow K1_K2/Restart Input External feedback contacts
grey SEL_A Input Safety light curtains operating mode
pink SEL_B Input
blue 0 V DC – Operating voltage 0 V DC
red FE – Functional earth
violet 24 V AC / DC – Heating 24 V AC / DC
black 0 V DC – Heating 0 V DC
Note: Lay the cables of the photoelectric safety sensors separately from
sources of interference such as power lines.
►Connect the transmitter and the receiver to the functional earth.
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8 Operating modes
The different operating modes of the safety light curtains / light grids of the
OY4xxS series can be set via the respective connections to the receiver.
Operating modes Connections
yellow grey pink
AAutomatic K1_K2
Connection to:
L+ (24 V DC)
SEL_A
Connection to:
L+ (24 V DC)
SEL_B
Connection to:
L- (0 V DC)
PK
YE
RD
GY
L+
L
BAutomatic with monitoring of the
feedback contacts
K1_K2
Connection to:
L+ (24 V DC)
(via NC of
the feedback
contacts)
SEL_A
Connection to:
L+ (24 V DC)
SEL_B
Connection to:
L- (0 V DC)
PK
YE
RD
GY
L+
L
CManual K1_K2 /restart
Connection to:
L+ (24 V DC)
(via start button)
SEL_A
Connection to:
L- (0 V DC)
SEL_B
Connection to:
L+ (24 V DC)
GY
YE
RD
PK
L+
L
DManually with monitoring of the
feedback contacts
K1_K2 /restart
Connection to:
L+ (24 V DC)
(via start button
and NC of
the feedback
contacts)
SEL_A
Connection to:
L- (0 V DC)
SEL_B
Connection to:
L+ (24 V DC)
GY
YE
RD
PK
L+
L
1: Feedback contact 1
2: Feedback contact 2
3: Restart
Core colours:
YE (yellow), GY (grey), PK (pink), RD (red)
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8.1 Automatic operation
If the safety light curtains / light grids are used in the automatic mode, monitored
start is not possible.
The safety light curtains / light grids automatically return to operation with clear
protected area, the outputs (OSSDs) are activated.
Verify if this is compatible with the risk analysis of your machine.
In the automatic mode the OSSD1 and OSSD2 outputs follow the status of the
safety light curtains / light grids :
Protected area clear Outputs = active logic "1"
Protected area interrupted Outputs = deactivated logic "0"
8.2 Manual operation
Operation in the manual mode (Start / Restart) is always necessary when passage
to a hazardous area is to be monitored (persons can be present in the hazardous
area after accessing the protected area without being detected).
The start / restart button has to be outside the hazardous area. It has to be
installed so that the hazardous area and access can be clearly seen. It must not
be possible to activate the start / restart button from within the hazardous area.
In the manual mode the safety light curtains / safety light grids comply
with the function as "trip device" to IEC 61496. Non-compliance with this
standard can lead to a hazard for people.
The OSSD1 and OSSD2 safety outputs are activated when the protected area
is clear and the restart command is entered via a start button or via a respective
pulse on the K1_K2/Restart input.
If the safety light curtains / light grids are released by a person or an object, a
restart command (24 V on the K1_K2/Restart input) has to be released. Pulse
duration > 100 ms.
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8.3 Connection of external feedback contacts
External feedback contacts can be integrated in the automatic or manual
operating mode. The feedback contacts have to be connected in series between
the operating voltage and K1_K2 / Restart (→ 8 Operating modes / table, fig. B).
With manual function a start button has additionally to be switched in series
(→ 8 Operating modes / table, fig. D).
8.4 Test function
For the test function the photoelectric safety sensors can e.g. be tested by a
process control system or a control module (→ 7.1 Table Configuration protected
area width).
The test pulse interrupts the light emission by the transmitter and the outputs carry
a 0 signal (→ 10.1 Switching states of the outputs).
The minimum duration of the test command is 4 ms.
8.4.1 Internal test function
Type 4 safety light curtains / light grids continuously perform internal tests. The
faults are detected within the response time of the respective model leading to
switch-off (response times → 12 Technical data).
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9 Operating and display elements
transmitter receiver
1: LED 3 colours (red/green/orange) 2: LED 2 colours (yellow/blue)
3: LED 2 colours (red/green)
9.1 LED indicators for optical alignment
The indication LEDs of the receiver help to correctly align the photoelectric safety
sensors.
9.1.1 Alignment in the automatic mode
Description
Receiver
2-colour LED 2-colour LED
red green yellow blue
Receiver does not detect any light beams
Receiver detects some light beams
Receiver detects all light beams with a weak
signal
Receiver detects all light beams
►Align the transmitter so that the green LED of the receiver lights.
►
Securely fasten the transmitter and the receiver.
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9.1.2 Alignment in the manual mode
In the manual operating mode the yellow LED lights instead of the green one. The
light curtain / light grid will then wait for the manual release.
Description
Receiver
2-colour LED 2-colour LED
red green yellow blue
Receiver does not detect any light beams
Receiver detects some light beams
Receiver detects all light beams with a weak
signal
Receiver detects all light beams
►Align the transmitter so that the green LED of the receiver lights.
►
Securely fasten the transmitter and the receiver.
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9.2 LED states
The blue LED is lit when the signal is weak (→ 9.1).
Description
Transmitter Receiver
LED LED LED
red green
orange
red green yellow blue
Activating the system,
input test
Fault
(→ 13 Troubleshooting)
Test condition
Normal operating
conditions *)
Protected area interrupted,
outputs deactivated
Protected area clear,
outputs deactivated,
waiting for restart
Protected area clear,
outputs activated
*) The green LED flashes twice when the system is switched on if the unit has been
configured with a high range.
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10 Operation
10.1 Switching state of the outputs
The safety light curtains / light grids have two outputs (OSSDs) on the receiver;
the status depends on the condition of the protected area.
All short-circuits between the outputs or between an output and the current supply
(24 V DC or 0 V DC) are detected by the safety light curtains / light grids as a fault.
Output Binary states Description
OSSD1 1 Condition
protected area clear.
OSSD2 1
OSSD1 1 0 0 Condition
protected area interrupted or fault detected.
OSSD2 0 1 0
10.1.1 The safe state
The safe state is when the output is switched off (zero-current state: logic "0") of
min. one of the outputs (OSSDs).
If one of the outputs is switched off, the subsequent safety-related logic unit must
bring the complete system into the state defined as safe.
10.1.2 The switched state
In switched state the receiver provides a current of 24 V DC (logic "1") to both
outputs.
Output characteristics
The output characteristics follow the characteristics of the input according to
IEC 61496:
Logic "1" 24 V DC max. 400 mA
Logic "0" < 0.2 mA≤ 1.5 V DC
10.1.3 Interface classification
The interface of the devices complies with interface type C class 3 according to
the ZVEI position paper CB 24I Ed. 2.0
Identification key
Interface type Suitable interface type
Source C3 Receiver C1 C2 C3
28
10.2 Functional test of the safety light curtains
Check the proper function of the safety light curtains before work starts.
For the functional test a test object in accordance with a resolution of the safety
light curtains has to be used.
For information about available test rods see:
www.ifm.com → Products → Accessories.
►Let the test object enter the protected area and move it slightly downwards.
First of all in the centre and then close to the transmitter and the receiver.
►Make sure that the red LED on the receiver is continuously lit during the
movement in the protected area.
Observe the notes on installation of the safety light curtains → 14
Maintenance, repair and disposal.
Notes on setup → 17.1 Check list.
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11 Scale drawing
11.1 Safety light curtain
R
137 66
7
T
L
10,5 12
50
20
2
18
56
76
T:
R:
L:
transmitter
receiver
total length*
1: LED 3 colours (red/green/orange)
2: LED (yellow)
3: LED 2 colours (red/green)
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11.2.1 Position of the light beams
Model Beams Position of the light beams measured from the lower edge of
the protective tube [mm]
OY421S 2 177 - 677
OY422S 3 177 - 577 - 977
OY423S 4 177 - 477 - 777 - 1077
32
12 Technical Data
Conforms to the requirements of:
Type 4 IEC 61496-1, SIL 3 IEC 61508, SILcl 3 IEC 62061,
ISO 13849-1:2015 category 4 PL e
Electrical design DC / PNP
Operating voltage 24 DC (19.2…28.8)
Current consumption
Transmitter [mA] 42
Receiver [mA] 83
Outputs (OSSDs) 2 x PNP
Max. current load per output [mA] 400 (24 V)
Max. capacitive load CL_max [µF] 0.82
Power-on delay time [s] < 2
Mission time TM [h] 175200
EMC IEC 61496-1
Vibration IEC 61496-1
Shock IEC 61496-1
Ambient temperature [°C] -10…55
Max. perm relative air humidity [%] 95
Protection IP 65 / IP 67 / IP 69K / III
Housing material
Transparent protective tube PMMA
Protective cap POM
Clamp High-grade stainless steel (316L/1.4404)
Sealing ring Silicone
Type of light Infrared light 950 nm
Display LED yellow, LED green, LED red, LED blue,
LED orange
Connection
Transmitter PVC cable / 15 m / 8 x 0.34 mm²
Receiver PVC cable / 15 m / 10 x 0.34 mm²
Max. cable length [m] 100 *)
*) for wire cross-section 0.34 mm²
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12.1 Heating
OY441S
OY442S
OY443S
OY444S
OY445S
OY446S
OY447S
OY448S
OY449S
OY450S
Current consumption
Transmitter [mA] 83 167 250 333 375 417 417 417 417 417
Receiver [mA] 83 167 250 333 375 417 417 417 417 417
OY421S OY422S OY423S
Current consumption
Transmitter [mA] 333 417 417
Receiver [mA] 333 417 417
12.2 Safety light curtains: 30 mm resolution
OY441S
OY442S
OY443S
OY444S
OY445S
OY446S
OY447S
OY448S
OY449S
OY450S
OY452S
Total length L [mm] 342 492 642 792 942 1092 1242 1392 1542 1692 1692
Protected area height [mm] 160 310 460 610 760 910 1060 1210 1360 1510 1510
Response time [ms] 3 4 5 6 6.5 7.5 8.5 9.5 10 11 11
Safety-related reliability
PFHD
[1/h] 9.2-09 1.0-08 1.2-08 1.3-08 1.4-08 1.5-08 1.7-08 1.8-08 1.9-08 2.0-08 2,0-08
Test pulse duration ti
[µs]
80 80 80 80 80 80 80 80 80 80 80
Test pulse interval T
[ms]
3,0 4,0 4,8 5,8 6,6 7,6 8,4 9,4 10,2 11,2 11,2
Ratio ti / T
[%]
2,7 2,0 1,7 1,4 1,2 1,1 1,0 0,9 0,8 0,7 0,7
34
12.3 Safety light curtains: 40 mm resolution
OY451S
Total length L [mm] 1842
Protected area height [mm] 1660
Response time [ms] 14
Safety-related reliability
PFHD
[1/h] 1,5-08
Test pulse duration ti
[µs]
80
Test pulse interval T
[ms]
8,8
Ratio ti / T
[%]
0,9
12.4 Safety light grids 2, 3 and 4 beams
OY421S
OY422S
OY423S
Number of beams 2 3 4
Total length L [mm] 782 1082 1182
Protected area height [mm] 510 810 910
Response time [ms] 2.5 2.5 2.5
Safety-related reliability
PFHD
[1/h] 9.2-09 1.0-08 1.1-08
Test pulse duration ti
[µs]
80 80 80
Test pulse interval T
[ms]
2,3 2,4 2,5
Ratio ti / T
[%]
3,5 3,3 3,2
13 Troubleshooting
The LEDs of the transmitter and the receiver indicate faulty operating states
(→ 9 Operating and display elements). For a detailed fault description see the
following tables.
13.1 Fault diagnosis transmitter
LED Possible cause Troubleshooting
red 2 consecutive
pulses
Faulty connection Check the white and green cores.
red 3/4 consecutive
pulses
Internal fault Send device to ifm branch office for repair.
35
UK
13.2 Fault diagnosis receiver
LED Possible cause Troubleshooting
red 2 consecutive
pulses
Wrong configuration Check connections.
red 3 consecutive
pulses
Feedback external
contactor missing
Check the connection to the external
feedback contacts.
red 4 consecutive
pulses
Interfering
transmitter detected
Find interfering transmitter and take one
of the following measures:
- Reduce the range of the interfering
transmitter from high to low.
- Exchange position of transmitter and
receiver.
- Change location of the interfering
transmitter so that the receiver is not
influenced.
- Screen the beams coming from the
interfering transmitter using a mat
protective device.
red 5 consecutive
pulses
Fault
OSSD outputs
Check connections.
If the defect remains, send device to ifm
branch for repair.
red 6/7 consecutive
pulses
Internal fault Send device to ifm branch office for
repair.
yellow Weak signal - Check alignment of transmitter and
receiver.
- Clean protective tube, check range.
- Waiting for restart pulse.
37
UK
15 Terms and abbreviations
Blanking Optional function ensuring that objects are
in the protected area which are larger than
the detection capacity without the OSSDs
switching off.
ESPE Electro-Sensitive Protective
Equipment
CCF Common Cause Failure
DCavg Average Diagnostic
Coverage
Muting Temporary bridging of a safety function by
safety-related parts of the control system.
MTTFdMean Time To Dangerous
Failure
OSSD Output Signal Switching
Device
Static safety-related output.
PFH
(PFHD)
Probability of (dangerous)
Failure per Hour
PL Performance Level Capability of safety-related parts to perform
a safety function at predictable conditions to
fulfil the expected risk reduction.
SIL Safety Integrity Level SIL 1-4 to IEC 61508. The higher the SIL the
lower the probability that a safety function
will fail.
SILcl Safety Integrity Levelclaim limit (to IEC 62061)
TMMission Time
T1 Test Interval
Technical data and further information at www.ifm.com
38
16 Annex
16.1 Check list
This check list serves as help for setting up the safety light curtains / light grids.
The requirements in this check list should to be met, however depending on the
application and the directives / standards referred to.
1. Were the directives / standards valid for safety of machinery complied with?
2. Is access prevention / primary guarding of the point of danger only possible
through the protected area of the safety light curtains / light grids?
3. Have steps been taken to prevent reaching under, over or around the light
guards to prevent attempts to defeat them?
4. Has the stop or shutdown delay of the machine been measured and adapted
according to the installation of the safety light curtains / light grids?
5. Have the safety light curtains / light grids been duly fixed and secured against
loosening or movement?
6. Have the safety light curtains / light grids been checked according to the
function and maintenance descriptions in these operating instructions?
7. Has external monitoring (EDM) of the control unit (e.g. contactor, valve etc.)
been used?
8. Is the state defined as safe for switching on / off of the safety light curtains /
light grids initiated?
9. Is /are there any soiling or scratches on the light-emitting surface?
10. Are the installation instructions of these operating instructions adhered to?
This check list does not replace checking or setup by a person trained in
safety matters.

Termékspecifikációk

Márka: IFM
Kategória: nincs kategorizálva
Modell: OY446S

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