OJ5193 - Photoelectric sensor IFM - Free user manual and instructions

Product type	Photoelectric sensor
Brand	IFM
Model	OJ5193
Category	Photoelectric sensor
Technology	Direct reflection system with background suppression
Power supply	10-30 V DC
Current consumption	< 50 mA
Output	PNP or NPN, NO/NC programmable
Range	Up to 200 mm on white (depending on label)
Connection	4 wires (BN, BU, BK, WH)
LED indicators	Green (power), yellow (output), red (programming/error)
Programming	By push-button or programming wire (pin 2)
Electronic lock	Yes, by activating programming wire 15-20 s
Protection	Short-circuit, reverse polarity
Operating temperature	-25 °C to 55 °C
Housing material	ABS
Dimensions	Approx. 50 x 30 x 20 mm
Weight	Approx. 50 g
Mounting	By mounting clip or side holes
Maintenance	Clean lenses with a soft cloth

Frequently Asked Questions - OJ5193 IFM

How to connect the OJ5193 sensor?

Disconnect power. Connect wires: BN (brown) to L+, BU (blue) to L-, BK (black) to output, WH (white) for programming. Output is PNP or NPN depending on model.

How to program NO or NC output?

Press the push-button for about 10 s until all LEDs turn off. Output changes from NO to NC (or vice versa).

How to adjust the sensor to detect a static object?

1. Press button for 2 s to enter programming mode (red LED flashes, then yellow and green LEDs flash). 2. Place the object and press once. 3. Remove the object (background within range) and press once. Green LED lights up, adjustment complete.

What to do if adjustment fails?

If after step 3 the red LED flashes for 2 s, adjustment failed. Sensor returns to operating mode without changes. Check orientation and distance.

How to set the maximum range?

In programming mode, point the sensor without object or background (distance > max range). Press button twice (steps 2 and 3) to set max range.

How to activate the electronic lock?

Connect the programming wire (WH) to L+ (PNP) or L- (NPN) for 15 to 20 s. Repeat to unlock.

What do the LEDs mean?

Green LED on: device operational. Yellow LED on: output switched. Yellow+red LEDs flash alternately at 2 Hz: short circuit; at 1 Hz: internal error.

How to clean the sensor?

Clean lenses from dirt with a soft, dry cloth. Do not use abrasive products.

What mounting types are possible?

Front or side mounting. Use supplied mounting clip or side holes. Orient sensor perpendicular to object for optimal range.

What is the supply voltage?

The sensor operates on DC 10 to 30 V. Connect L+ (brown) and L- (blue) to a suitable source.

USER MANUAL OJ5193 IFM

Pure technical line drawing of two vertical panels with internal compartments and circular components, no text or symbols present.

Technical diagram showing a mechanical assembly with two components and directional arrows indicating assembly (no text or symbols present)

Technical line drawing of a mechanical component with mounting base and internal channel (no text or symbols)

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Function and features

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

Range (r):

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

Electrical connection

Isolate power, then connect the unit.

DC PNP DC NPN

graph TD
    A["Central Logic Node"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    A --> E["4"]
    A --> F["L+"]
    A --> G["L-"]
    H["Teach"] --> I["Output"]
    style A fill:#f9f,stroke:#333
    style H fill:#ccf,stroke:#333
    style I fill:#cfc,stroke:#333
    style G fill:#fcc,stroke:#333

graph TD
    A["Central Logic Block"] --> B["1"]
    A --> C["2"]
    A --> D["3"]
    B --> E["L+"]
    C --> F["4"]
    D --> G["L-"]
    H["teach"] --> I["Switch"]

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

Programming of the output function by push button or programming wire (see page 12).

Installation

* In the following sections installation and set-up are described using the example of the type with front lens. The functions of the units with side lens are identical.

Align the photocell and fasten it to a mounting fixture.

Mounting of the series OJ51xx

The units of the OJ51xx series have two fixing holes on the side for mounting. A mounting fixture is not supplied.

Maximum range is only possible with precise alignment.

The objects to be detected are to move tranversally to the lens of the

unit. In case of other directions of movement it should be tested before whether safe functioning is guaranteed.

graph LR
    A["Device"] <--> B["Rectangle"]
    B <--> C["Patterned Rectangle"]
    style A fill:#f9f,stroke:#333
    style B fill:#ccf,stroke:#333
    style C fill:#cfc,stroke:#333

For demanding applications (small distance between the object and the background) we recommend the following mounting positions:

• In case of shiny background surfaces and less shiny object surfaces the sensor should be mounted vertically to the background surface.
• In case of shiny object surfaces and less shiny background surfaces the sensor should be mounted at an angle of appox. 5 - 10°.

Installation of the supplied mounting fixture

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Secure the mounting fixture with the screws supplied, then slide the unit into the slot of the fixture until the spring clicks home.

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To remove the unit press the spring down with a screwdriver and slide the unit out.

Setting of the sensitivity with stationary objects\*

1	Activate the programming mode of the unit.Press for about 2suntil the red LED flashes. ←→
	The red LED goes out; the yellow and green LEDs flash alternately.The unit is in the programming mode.

2	Setting with object.
	Press once.
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.

3	Setting without object. The background must be within the maximum range.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.

* The sensitivity can also be set in exactly the same way using the programming wire (pin 2 / WH). To activate the functions the programming wire is connected for the appropriate time to L+ (pin 1 / BN) for PNP units or to L- (pin 3 / BU) for NPN units. Feedback: If setting was not successful via the programming wire, the output will switch for 2s. The unit then reverts to the operating mode with the sensitivity unchanged.

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 received by the object or the background (min. distance > max. range).
• Press the setting button twice (see steps 2 and 3).

* The maximum sensitivity can also be set in exactly the same way using the programming wire (pin 2 / WH). To activate the functions the programming wire is connected for the appropriate time to L+ (pin 1 / BN) for PNP units or to L- (pin 3 / BU) for NPN units.

Electronic lock

Activate the lock by connecting the programming wire for about 15s – 20s*.

De-activate the lock by connecting the programming wire again for 15s - 20s*.

* To activate the functions the programming wire (pin 2 / WH) is connected to L+ (pin 1 / BN) for PNP units or to L- (pin 3 / BU) for NPN units for the appropriate time.

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 10s all LEDs go off, the output function has changed from light-on mode to dark-on mode (or vice versa).

* The output function can be programmed in exactly the same way using the programming wire (pin 2 / WH). To activate the functions the programming wire is connected for the appropriate time to L+ (pin 1 / BN) for PNP units or to L- (pin 3 / BU) for NPN units.

Operation

Check the safe functioning of the unit. Display by LEDs.

LED green is lit Unit is ready for operation.
LED yellow is lit Output is switched.
LEDs yellow + red	Flash alternately, 2 Hz: output short-circuited. Flash alternately, 1 Hz: internal malfunction (output is not switched).

Maintenance

Keep the lens of the sensor free from soiling.

Technical diagram showing a mechanical component being inserted into two separate parts (no text or symbols present)

Technical line drawing of a mechanical component with no visible text or symbols

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Technical diagram of a mechanical assembly with arrows indicating motion or force direction (no text or symbols)