IFM Electronic Efector 200 OG laser Manual de usuario

Operating instructions

Retro-reflective sensor

OG laser

701168 / 03 04 / 2000

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

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

L+

Pin 2 = fc-output

DC NPN

L+

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

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��

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

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�

Setting with object�

Press once�

►

The yellow and green LEDs go out for approx� 1 s, then flash again alternately�

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

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�

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�

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)�

•

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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