OA0111 - Photoelectric sensor IFM - Free user manual and instructions

Product type	Direct reflection photoelectric sensor
Brand	IFM
Model	OA0111
Category	Photoelectric sensor
Range	Up to 200 mm (on white 200x200 mm)
Supply voltage	10...36 V DC
Current consumption	< 30 mA
LED indication	Green (power), Red (reception), Yellow (output)
Output	PNP or NPN depending on wiring
Response time	< 1 ms
Protections	Short circuit, reverse polarity
Housing material	Nickel-plated brass
Dimensions	Diameter 18 mm, length 60 mm
Weight	Approx. 50 g
Operating temperature	-25...+60 °C
Protection rating	IP67
Adjustment	Sensitivity potentiometer, timer function selector
Timer functions	On-delay (A) or off-delay (b)
Maintenance	Regular cleaning of lenses with a soft cloth
Safety	Disconnect power before connection, use a miniature fuse
Connection	Cable or connector (depending on version)

Frequently Asked Questions - OA0111 IFM

How to connect the OA0111 sensor?

Disconnect the installation from power then connect strictly according to the label indications. Insert a miniature fuse if specified. Check operation after a short circuit.

What is the maximum range of the sensor?

The range is up to 200 mm on a white surface of 200x200 mm. The optimal range requires precise alignment.

How to correctly align the sensor?

Point the sensor towards the object to be detected. The red LEDs should be constantly on for precise alignment; if they flash, alignment is poor.

What do the different LEDs mean?

Green LED: supply voltage OK. Red LEDs: light reception (object detected). Flashing red LEDs: degraded reception (dirty lenses, incorrect adjustment). Yellow LED: output switched.

How to adjust sensitivity and timer?

Use the potentiometer for sensitivity and selector 3 for the timer function. Position A: on-delay; position b: off-delay.

What to do in case of unstable detection?

Check alignment and lens cleanliness. Flashing red LEDs indicate degraded reception. Clean the lenses with a soft cloth and readjust.

How to clean the sensor?

Disconnect the power. Clean the lenses with a soft, non-abrasive cloth. Avoid aggressive solvents.

What is the recommended supply voltage?

The sensor operates with a voltage of 10 to 36 V DC. Use a stabilized power supply.

What is the output of the sensor?

The output is PNP or NPN depending on wiring. It switches when the object is detected.

How to use the diagnostic output?

The diagnostic output emits a 5 Hz signal in case of poor detection (dirt, incorrect adjustment). As soon as detection becomes reliable again, the output returns to a permanent signal.

USER MANUAL OA0111 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× 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 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.