OA8507 - Motion detector IFM - Free user manual and instructions

Product type	Direct reflection motion detector
Brand	IFM
Model	OA8507
Power supply	DC voltage (10-30 V DC typical)
Range	Up to 2 m on white paper 200x200 mm (reference)
Switching output	Configurable (PNP/NPN), timed
LED indicators	Green (power), red (reception), yellow (switched output)
Settings	Sensitivity, output function, time function, delay duration
Mounting	On mounting bracket, precise orientation required
Electrical connection	According to label, with recommended miniature fuse
Diagnostic function	Diagnostic output 5 Hz in case of contamination or incorrect adjustment
Maintenance	Regular cleaning of lenses
Protection	Miniature fuse for short-circuit protection
Operating temperature	-25 to 60 °C (estimated)
Housing material	Not specified, typically plastic or metal
Weight	Approximately 50 g (estimated)

Frequently Asked Questions - OA8507 IFM

How to electrically connect the OA8507 detector?

Disconnect the power supply. Connect strictly according to the label indications. Insert a miniature fuse if specified. Check proper operation after a short-circuit.

What is the maximum range of the OA8507?

The range depends on the object. On white paper 200x200 mm, it can reach up to 2 m. Check the label for the exact value.

How to adjust the sensitivity and timing?

Use the internal selectors. Selector 3 allows you to choose the timing mode (A or B). The other settings adjust the sensitivity and duration. Refer to the manual for details.

What do the different LEDs mean?

Green LED on = power supply OK. Red LEDs on = light reception (object detected). Red LEDs flashing = contamination or incorrect adjustment. Yellow LED on = switched output.

How to maintain the detector?

Clean the lenses regularly to avoid contamination. Use a soft, dry cloth. Avoid aggressive solvents.

Can I use it outdoors?

The manual does not mention outdoor use. For outdoor use, check the IP protection rating. Not specified here, so to be confirmed.

How to know if the detector is misadjusted?

If the red LEDs flash or the diagnostic output emits a 5 Hz signal, this indicates impaired reception (contamination, incorrect adjustment).
Realign or clean the device.

What is the function of the diagnostic output?

It signals poor detection (contamination, incorrect adjustment) with a 5 Hz signal. As soon as detection becomes reliable again, the output returns to a permanent signal.

What types of objects can I detect?

The direct reflection system detects any opaque or reflective object. Transparent or very dark objects may reduce the range.

How to mount the OA8507 correctly?

Orient the detector towards the object to be detected and fix it with a mounting bracket. Use the red LEDs as a guide: on = precise alignment, flashing = misalignment.

USER MANUAL OA8507 IFM

Functions and features

The diffuse-reflection sensor detects objects and materials without contact and indicates their presence by a switched signal.

Range: see type label (value referred to white paper 200mm x 200mm).

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

Align the photocell towards the object to be detected 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 “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.

Switch 3 = b:

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.

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 (object present).
• 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 5 Hz 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.