OA5105 - Motion detector IFM - Free user manual and instructions

Product type	Reflex motion detector (non-contact)
Brand	IFM
Model	OA5105
Range	Up to 80 mm with honeycomb reflector
Supply voltage	10-30 V DC
Power consumption	Less than 50 mA
LED indicators	Green (power), Red (reception), Yellow (output)
Adjustment functions	Sensitivity, output function, delay
Switching output	NPN/PNP (depending on configuration)
Electrical connection	Cable or M12 connector (typical)
Operating temperature	-25 to +70 °C
Protection rating	IP67
Housing material	Stainless steel (estimated)
Weight	Approximately 50 g
Dimensions	Approximately Ø30 x 60 mm
Maintenance and cleaning	Clean lenses regularly with a soft cloth
Safety	Disconnect power before connection; use a miniature fuse according to datasheet
Spare parts and repairability	Honeycomb reflector available; no internal spare parts
General information	Manual available at notice-facile.com in PDF

Frequently Asked Questions - OA5105 IFM

What is the detection range of the IFM OA5105?

The range is up to 80 mm with a honeycomb reflector or reflective adhesive tape. Check the label for the exact value.

How do I connect the IFM OA5105 detector?

Disconnect the power supply. Connect strictly according to the label instructions. Insert a miniature fuse if specified. After a short circuit, verify proper operation.

What do the LEDs on the detector mean?

Green LED on = power supply OK. Red LEDs on = light reception (no object). Red LEDs flashing = dirty lenses or incorrect adjustment. Yellow LED on = output switched.

How do I adjust the sensitivity of the detector?

Use selector 3 to choose the delay mode. Sensitivity adjustment is done via selectors S1 and delay functions (rising/falling edge) as described in the manual.

How do I clean the IFM OA5105 detector?

Clean the lenses regularly with a soft dry cloth to avoid dirt that affects detection.

What is the required supply voltage for the OA5105?

The supply voltage is typically 10 to 30 V DC. Check the label for exact specifications.

How do I set the delay?

With selector 3, choose mode a or b. Use S1 to set the edge (rising/falling) and delay t. A pulse during t resets the delay.

What should I do if the red LEDs are flashing?

Red LEDs flash when reception is degraded (dirty lenses, misalignment). Clean the lenses and realign the detector with the reflector. The diagnostic output emits a 5 Hz signal.

Does the detector work without a reflector?

No, the OA5105 is a reflex sensor that requires a reflector (honeycomb or adhesive tape) to operate. Without a reflector, it cannot detect objects.

Where can I download the manual for the IFM OA5105?

The manual is available for free in PDF format on the notice-facile.com website. You can download it directly or request a translation by email.

USER MANUAL OA5105 IFM

Functions 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: see type label (values referred to prismatic reflector with 80mm ).

Controls and indicators

Electrical connection

Disconnect power before connecting the sensor.

Connection strictly to the indications on the type label.

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

Recommendation: check the unit for reliable function after a short circuit

Installation

Fix the prismatic reflector / reflective tape in desired position. Align the photocell and fix it by means of a mounting device.

Following electrical connection the photocell can be set exactly by means of the LED display:

• The red LEDs light if setting is exact.
• They flash if setting is inexact.
  Maximum range only with precise alignment.

Setting

Set the sensitivity, the output function, the time function as well as the type and duration of the time delay.

Switch 3 = a

The signal "no object present" is transferred to the switching output after a delay.

• In the case of S1 = the output switches OFF after the falling edge + t.
• In the case of S1 = the output switches ON after the falling edge + t.

A pulse during the time t triggers the timer again.

Switch 3 = b

The signal "object present" is transferred to the switching output after a delay.

In the case of S1 = the output switches ON after the rising edge + t.
In the case of S1 = the output switches OFF after the rising edge + t.

A pulse during the time t triggers the timer again.

Operation

Check the safe functioning of the photocell.

Display by LEDs and function-check output.

• Green LED is lit = supply voltage o.k.
• Red LEDs are lit = light reception (no object between photocell and reflector).
• Red LEDs flashing = reception deteriorating (e.g. by soiling of the lenses or maladjustment).
• Yellow LED is lit = output switched.

The function check output indicates a wrong object detection (soiling of the lenses, maladjustment) by means of a 5Hz signal. When the object is again clearly detected, the output provides again a continuous signal.

Maintenance: Keep the lens of the sensor free from soiling.