OL5005 - Industrial electronic sensor IFM - Free user manual and instructions

Product type	Retro-reflective photoelectric sensor (reflex cell)
Brand	IFM
Model	OL5005
Category	Industrial electronic sensor
Technology	Retro-reflective optics with honeycomb reflector or reflective adhesive tape
Range	Variable according to reflector (see label on device, typically up to 10 m with Ø 80 mm reflector)
Power supply	DC (10-30 V) or AC/DC (depending on version), reverse polarity protection
Power consumption	< 100 mA (DC), < 2 VA (AC/DC)
Output	NPN or PNP or relay (depending on version), NO/NC programmable via push-button
Output current	100 mA max (switching output), 10 mA max (diagnostic output)
LED indicators	Green (operational), Yellow (output active), Red (error/fault)
Programming	Sensitivity adjustment (static or moving objects) and output function via push-button
Protection	Short-circuit (output), auto-recovery after approx. 2 s
Connection	Terminal box or M12 connector (depending on version)
Housing material	Plastic (PBT)
Lens material	Plastic (PMMA)
Protection rating	IP67 (estimated)
Operating temperature	-25°C to +60°C (estimated)
Dimensions (approx.)	60 x 30 x 30 mm (housing)
Weight (approx.)	100 g
Mounting	Via mounting bracket (not supplied), precise orientation recommended
Maintenance and cleaning	Clean the lenses with a soft, dry cloth; do not use solvents or abrasive products
Accessories	Honeycomb reflector (Ø 80 mm) or reflective adhesive tape, miniature fuse if necessary
Certifications	CE, others depending on version

Frequently Asked Questions - OL5005 IFM

How to adjust the sensitivity of the OL5005 sensor?

To adjust sensitivity, press the push-button for about 2 seconds until the red LED flashes. Then, place the object to be detected in front of the sensor and press once to memorize the object-present state. Remove the object and press again to memorize the object-absent state. The yellow and green LEDs flash alternately during programming. After validation, the green LED lights up to indicate that the adjustment is complete.

What do the different LEDs on the sensor mean?

The green LED indicates that the device is operational. The yellow LED lights up when the output is switched (object detection). The red LED signals a detection error (incorrect adjustment, dirty lenses). A yellow+red alternating flash at 2 Hz indicates a short circuit on the output; at 1 Hz, an internal error.

How to wire the OL5005 sensor?

Disconnect power before any connection. Wire colors are: brown (BN) = positive supply, blue (BU) = negative, black (BK) = switching output, white (WH) = diagnostic output (if present). For versions with cable gland, use the removable terminal block; after connection, reinsert the terminal block.

The sensor does not detect objects correctly, what to do?

First check the alignment of the sensor and reflector. Clean the lenses with a soft, dry cloth. Recalibrate the sensitivity following the adjustment procedure. If the red LED stays on, it indicates a detection error; dirt or incorrect adjustment are the most common causes.

How to change the output function (NO/NC)?

Press the push-button for about 10 seconds. The red LED flashes rapidly after 2 s, then the yellow and green LEDs flash alternately. After about 8 seconds, all LEDs turn off: the output function has been reversed (from NO to NC or vice versa).

Can the sensor detect transparent objects?

Yes, the sensitivity adjustment allows detection of partially transparent objects. Use the adjustment procedure with object and without object to adjust sensitivity. If the object and background signals are too close, the red LED flashes after step 3, indicating that adjustment is not possible.

What is the maximum range of the sensor?

The range (r) is indicated on the sensor label, measured with an 80 mm diameter honeycomb reflector. It can reach several meters, typically up to 10 m depending on the model. Precise orientation is essential to achieve optimal range.

How to clean the sensor lenses?

Use a soft, dry cloth to gently wipe the lenses. Never use solvents or harsh chemicals, as they could damage the plastic lenses.

What to do in case of a short circuit on the output?

The sensor automatically detects the short circuit: the yellow and red LEDs flash alternately at 2 Hz. The output is disconnected. After eliminating the short circuit, the sensor automatically returns to normal operation after about 2 seconds. Check wiring and fuse if present.

Does the sensor have a diagnostic output?

Yes, DC-powered versions have a diagnostic output (white wire). It switches in case of detection error (poor detection, dirt) after 4 seconds, immediately in case of short circuit, and in case of internal error (requires power reset). Maximum current is 10 mA.

USER MANUAL OL5005 IFM

Function and features

In conjunction with a prismatic reflector or reflective tape the retroreflective 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 ).

Electrical connection

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

Core colours: BN = brown, BU = blue, BK = black, WH = white.

Programming of the output function by push button (see page 11).

The units with cable gland have a removable terminal block with screw terminals (screws are at the base of the terminal block).

After connection of the wires the terminal block must be reinserted.

Note: insert a miniature fuse according to the technical data sheet, if specified.

Recommendation: check the unit for reliable function after a short cirucit.

Installation

Fix prismatic reflector / reflective tape in desired position. Align the photocell photocell towards the reflector and fasten it to a mounting bracket; the light spot must hit the prismatic reflector.

Maximum range is only possible with precise alignment.

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 sensitivity with object. Press once.
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.
3	Set the sensitivity without object. Press once.
	The yellow and green LEDs go out for approx. 1s, after approx 3s 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.

If the setting button is not activated for 15 minutes during the programming process, the unit passes automatically into the operating mode with the sensitivity being unchanged.

Setting of the sensitivity with moving 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	During the measurement (about 1s) allow at least two objects to move through the detection area. Press once.
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.

3	During the measurement (about 1s) allow at least two objects to move through the detection area. Press once. ………
	The yellow and green LEDs go out for approx. 1s, after approx. 3s 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.

If the setting button is not activated for 15 minutes during the programming process, the unit passes automatically 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 2s. Then the yellow and green LEDs flash alternately. After 8s all LEDs 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 unit. 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

(only for sensors with DC power supply)

• 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 plastic lenses of the sensor free from soiling.

For cleaning do not use any solvents or cleaning agents which could damage the plastic lenses.

Sensor with terminals

Sensor with connector

Sensor with terminals

Sensor with connector

Sensor with terminals