IFM OG5062, OG5061 Operating instructions

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Operating instructions
Retro-reflective sensor
OG laser
701168 / 03 04 / 2000
UK
2
Contents
Function and features ����������������������������������������������������������������������������������������������3
Electrical connection������������������������������������������������������������������������������������������������3
Installation ���������������������������������������������������������������������������������������������������������������4
Adjustment aid ������������������������������������������������������������������������������������������������������5
Commissioning ��������������������������������������������������������������������������������������������������������5
Setting of the sensitivity with stationary objects ������������������������������������������������������5
Setting of the sensitivity with moving object ������������������������������������������������������������6
Setting of the maximum sensitivity ��������������������������������������������������������������������������7
Locking / Unlocking �������������������������������������������������������������������������������������������������8
Operation �����������������������������������������������������������������������������������������������������������������8
Function check output ������������������������������������������������������������������������������������������8
Maintenance ������������������������������������������������������������������������������������������������������������8
3
UK
WARNING
Visible laser light, laser protection class 2�
Use of controls or settings other than those specified herein can result in hazardous
radiation exposure�
Do not stare into the laser beam!
Apply the enclosed labels (laser warning) in the immediate vicinity of the unit�
Adhere to the caution and warning notes on the product label�
Use the enclosed label for the power supply cable�
Function and features
In conjunction with a prismatic reflector or reflective tape the retro-reflective
sensor detects objects and materials without contact and indicates their presence
by a switched signal�
Range (r): see type label (value referred to prismatic reflector with Ø 80 mm)�
The highly focussed units detect very small objects� Therefore you must use a
suitable prismatic reflector (e� g� E20722)�
Electrical connection
Isolate power, then connect the unit�
Connect the unit as follows:
DC PNP
BN
BK
BU
L+
L
BU
BK
BN
L+
L
L
L+
1
2
4
3
L
L+
3
2
4
1
Pin 2 = fc-output
4
DC NPN
L
BN
BK
BU
L+
L
BU
BK
BN
L+
L
L+
3
4
2
1
L
L+
1
4
2
3
Pin 2 = fc-output
Core colours (for sensors with cable connection): BN = brown, BU = blue,
BK = black�
Programming of the output function (light-on or dark-on) by wiring�
Load of the function check output (fc output): max� 10 mA�
Installation
21
Pushbutton
LEDs red, green, yellow
Fix prismatic reflector / reflective tape in desired position� Align the photocell
towards the reflector; the light spot must hit the prismatic reflector
Maximum range is only possible with precise alignment��
1:
2:
5
UK
Do not align the beam towards the fixing screw of the prismatic reflector
Mount the unit so that the mounting position cannot change (in particular
avoid high vibrations!)�
Laser units with a very small light spot diameter are highly focussed; the
slightest change in the mounting position will result in misalignment�
Adjustment aid
To make alignment easier the intensity of the light spot is increased during the
setting until it becomes clearly visible� In the operating mode (after step 3 of the
setting) the transmitted light is set to normal intensity
Commissioning
The retro-reflective sensor is supplied ready to operate (plug and play) set at the
max� sensing range� This is sufficient if the retro-reflective sensor can operate
with maximum excess gain (highest contrast)� The following setting procedures
should only be necessary in less straightforward applications, for example if partly
transparent objects must be detected�
Setting of the sensitivity with stationary objects
1
Activate the programming mode of the unit without object�
Press for about 2 s until the red LED flashes�
The red LED goes out; the yellow and green LEDs flash alternately
The unit is in the programming mode�
>
>
6
2
Setting with object�
Press once�
The yellow and green LEDs go out for approx� 1 s, then flash again alternately
>
3
Einstellung ohne Objekt�
Press once�
The yellow and green LEDs go out for approx� 1 s, then the green LED is on�
The unit is in the operating mode�
>
>
You can also proceed in reverse order: first setting without the object, then with
the object�
If the setting of the sensitivity is not possible (e�g� object signal and
background signal are about the same), the red LED flashes after step
3 for approx� 2 s� The unit then passes into the operating mode with the
sensitivity being unchanged�
Setting of the sensitivity with moving object
1
Activate the programming mode of the unit without object�
Press for about 2 s until the red LED flashes�
The red LED goes out; the yellow and green LEDs flash alternately
The unit is in the programming mode�
>
>
7
UK
2
During the measurement (approx� 1 s) allow at least two objects to move through
the sensing area of the lens�
Press once�
The yellow and green LEDs go out for approx� 1 s, then flash again alternately
>
3
During the measurement (approx� 1 s) allow at least two objects to move through
the sensing area of the lens�
Press once�
The yellow and green LEDs go out for approx� 1 s, then the green LED is on�
The unit is in the operating mode�
>
>
If the setting of the sensitivity is not possible (e�g� object signal and
background signal are about the same), the red LED flashes after step
3 for approx� 2 s� The unit then passes into the operating mode with the
sensitivity being unchanged�
Setting of the maximum sensitivity
Go into the programming mode (step 1)�
Align the unit so that no light is reflected�
Press the setting button twice (see steps 2 and 3)�
8
Locking / Unlocking
Press for 10 s�
The red LED lights for a short time,
then the yellow and green LEDs flash
alternately; after 10 s the LEDs go out,
the unit is locked�
Press for 10 s
After 10 s the LEDs go out, locking is
cancelled�
Operation
Check the safe functioning of the sensor� Display by LEDs�
LED green lights Unit is ready for operation�
LED yellow lights Output is switched�
LED red lights Error in object detection, e�g� maladjustment,
soiling of the lenses
LEDs yellow + red
Flash alternately, 2 Hz: output short-circuited�
Flash alternately, 1 Hz: internal malfunction,
(output is not switched)�
Function check output
(not for sensors with cable connection)
Switches in the case of incorrect object detection (error in object detection,
maladjustment, soiling of the lenses) after approx� 4 s, it switches back approx�
4 s after the object is again correctly detected�
Immediately switches in the case of a short circuit of the switching output, it
switches back approx� 2 s after the fault has been rectified�
Immediately switches in the case of an internal fault, it is only switched back by
turning off the operating voltage and then on again�
Maintenance
Keep the lens of the sensor free from soiling�
For cleaning do not use any solvents or cleaning agents which could damage the
plastic lenses�
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