OL5022 - Photoelectric sensor IFM - Free user manual and instructions

Product type	Photoelectric sensor
Brand	IFM
Model	OL5022
Category	Reflex photoelectric sensor
Detection technology	Reflex with honeycomb reflector or reflective adhesive tape
Typical range	Up to 80 mm with honeycomb reflector ∅80 mm (exact value on label)
Light source	Red laser, class 2
Supply voltage	10-30 V DC
Visual indicators	Red, yellow, green LED
Output function	Switching (light/dark), diagnostic output
Programming	Adjustment button for sensitivity and output function
Connection	4-pin connector (pin 2 = diagnostic output)
Mounting	Bracket mounting, precise alignment required
Maintenance	Clean lenses with a soft cloth, no solvents
Safety	Class 2 laser radiation, do not stare into beam
Warning	Laser warning labels to be affixed near the sensor

Frequently Asked Questions - OL5022 IFM

How to adjust the sensitivity of the OL5022 sensor?

To adjust the sensitivity, activate programming mode by pressing the adjustment button for about 2 seconds until the red LED flashes. Then follow the steps to measure with and without the object depending on whether the object is static or moving. The yellow and green LEDs flash alternately in programming mode.

What to do if the sensor does not detect objects correctly?

Check the alignment of the sensor and reflector. Clean the lenses if dirty. If the red LED is on, it indicates a detection error (misalignment or contamination). Adjust the sensitivity or realign the beam.

What is the meaning of the LEDs on the sensor?

Green LED on = device operational; Yellow LED on = output switched; Red LED on = detection error; Yellow+red flash alternately at 2 Hz = short circuit, at 1 Hz = internal error.

Does the sensor use a laser? Is it dangerous?

Yes, it uses a class 2 red laser radiation. Do not look directly into the beam axis. The provided warning labels must be affixed near the sensor.

How to electrically connect the OL5022?

Disconnect power before connection. Use a 4-pin connector: pin 1 = L+, pin 3 = L- (common), pin 4 = L- (or other depending on diagram), pin 2 = diagnostic output. Refer to the diagram on the label or page 17 of the manual.

Can the sensor be used without a reflector?

No, it is a reflex sensor that requires a honeycomb reflector or reflective adhesive tape to operate. The beam is reflected by the reflector back to the sensor.

How to clean the OL5022 sensor?

Clean the lenses with a soft, dry cloth. Do not use solvents or abrasive products that could damage the plastic lenses.

What to do if the red LED flashes after a sensitivity adjustment?

If the red LED flashes after step 3, it means adjustment is not possible (object and background signals too similar). The sensor returns to operating mode without changing sensitivity. Try changing the alignment or use a different reflector.

What is the function of the diagnostic output?

The diagnostic output (pin 2) switches in case of detection error (misalignment, contamination) after about 4 seconds, in case of short circuit immediately, and in case of internal error (requires power cycle). It resets after error correction.

How to change the output function (light to dark)?

Activate programming mode by pressing the button for about 2 seconds until the red LED flashes quickly. After 8 seconds, the LEDs turn off and the output function is inverted. The yellow and green LEDs flash alternately during the procedure.

USER MANUAL OL5022 IFM

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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 ∅ 80mm).

The highly focussed units detect very small objects. Therefore you must use a suitable prismatic reflector (e.g. E20722).

Laser radiation; laser protection class 2.

Do not look directly into the beam!

The enclosed labels (warning laser) must be applied in close proximity to the unit.

Electrical connection

Isolate power, then connect the unit (see page 17 or type label).

Programming of the output function (see page 11).

Load of the function check output (fc output): max. 10mA.

Installation and alignment

LEDs red, yellow, green setting button

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.

Attention: 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.

NB: 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. ←→ Press for about 2s until the red LED flashes.
	The red LED goes out; the yellow and green LEDs flash alternately.The unit is in the programming mode.
2	Set the sensitivitywithobiect.
	The yellow and green LEDs go out for approx. 1s,then flash again alternately.

3	Set the sensitivitywithoutobject.
	The yellow and green LEDs go out for approx. 1s,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. 2s. The unit then passes into the operating mode with the sensitivity being unchanged.

Setting of the sensitivity with moving objects

1	Activate the programming mode of the unit.Pre
	The red LED goes out; the yellow and green LEDs flash alternately. The unit is in the programming mode.

2	During the measurement (approx. 1s) 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. 1s, then flash again alternately.

3	During the measurement (approx. 1s) 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. 1s, 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. 2s. 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).

Programming the output function

Press for 10s.

The red LED starts to flash fast after 2 s. Then the yellow and green LED's flash alternately. After 8 s all LED's go off, the output function has changed from light-on mode to dark-on mode (or vice versa).

Operation

Check the safe functioning of the diffuse reflection sensor. Display by LEDs and by the function check output.

LED green is lit Unit is ready for operation.
LED yellow is lit Output is switched.
LED red is lit	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

• 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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Appuyer pendant 10s.