OJ5191 - Motion detector IFM - Free user manual and instructions

Product type	Motion detector (reflex cell for transparent objects)
Brand	IFM
Model	OJ5191
Series	efector200®
Detection principle	Reflex cell with «honeycomb» reflector or reflex adhesive tape
Range	See label (example: on 50x50 mm reflector E20722)
Power supply	10-30 V DC (according to electrical connection)
Power consumption	Not specified
Output	Switched (NO or NC programmable)
LED indicators	Green (operational), yellow (output switched), red (error)
Output function	Programmable via pushbutton (NC/NO)
Sensitivity adjustment	Manual via pushbutton, with or without object
Object detection	Transparent objects and materials, non-contact
Mounting	Mounting clip (not supplied) or side holes for screws
Orientation	Front or side (depending on model)
Maintenance and cleaning	Keep lenses free from dirt
Safety	Disconnect power before connecting
Operating temperature	Not specified
Protection rating	Not specified
Weight	Not specified
Dimensions	Series OJ51xx (dimensions not specified)

Frequently Asked Questions - OJ5191 IFM

How to install the OJ5191 detector?

Attach the reflector or reflex adhesive tape. Orient the cell so that the light spot hits the reflector. Use a mounting clip (not supplied) or the side mounting holes.

How to adjust sensitivity for static objects?

Press the pushbutton for about 2s until the red LED flashes. Then press once with the object, then once without the object. The LEDs confirm the setting.

How to adjust sensitivity for moving objects?

Activate programming mode (red LED flashes). Let objects cross the detection zone (between 8Hz and max frequency) and press once. Repeat the operation for the second measurement.

What to do if sensitivity adjustment is not possible?

If the red LED flashes after step 3, the cell goes into operating mode without change. Otherwise, perform the adjustment on the honeycomb reflector by aligning the beam on it.

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

Press the pushbutton for about 10s. All LEDs turn off and the output toggles from NC to NO or vice versa.

How to interpret the LEDs?

Green LED on: device operational. Yellow LED on: output switched. Red LED on: detection error. Yellow+red flashing: short circuit or internal error.

Which reflector to use with the OJ5191?

Use a honeycomb reflector (e.g., 50x50 mm, reference E20722) or a reflex adhesive tape.

How to maintain the detector in good condition?

Clean the lenses regularly to avoid dirt. Check the alignment with the reflector.

What is the maximum range?

The range depends on the reflector used. See the label on the device for the specific value (e.g., with honeycomb reflector 50x50 mm).

Can this detector be used with opaque objects?

Yes, it detects any object that interrupts the reflected beam, but it is optimized for transparent objects.

USER MANUAL OJ5191 IFM

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Frontale Optik*

Einstelltaste

LED

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Function and features

In conjunction with a prismatic reflector or reflective tape the retro-reflective sensor detects transparent objects and materials without contact and indicates their presence by a switched signal.

Range (r): see type label (value referred to prismatic reflector with 50x50 mm, E20722).

Electrical connection

Isolate power, then connect the unit.

graph TD
    A["Input"] --> B["1"]
    A --> C["4"]
    A --> D["3"]
    B --> E["L+"]
    C --> F["L-"]
    D --> G["L-"]

Programming of the output function by push button.

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.

Fix prismatic reflector / reflective tape in desired position. Align the photocell photocell towards the reflector and fasten it with a mounting fixture (see the next page for installation); the light spot must hit the prismatic reflector.

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.

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.

NB: Commissioning

Without any further settings the retro-reflective sensor is set to the max. range. This means that for the detection of transparent objects the retro-reflective sensor must be set to the optimum excess gain according to the settings described below.

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 unitPress for about 2s untilthe red LED flashes.
	The red LED goes out; the yellow and green LEDs flash alternately.The unit is in the programming mode.

2	Allow objects to pass through the detection area during the measurement (about 1s) (number of the objects between min. 8Hz and max. switching frequency).Press once.
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.
3	Allow objects to pass through the detection area during the measurement (about 1s) (number of the objects between min. 8Hz and max. switching frequency).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.

Additional setting procedure to prismatic reflector

Should it not be possible to program the unit with the settings described above, the sensitivity can be set to the prismatic reflector. In this case, however, the excess gain to the object to be detected is reduced.

• Go into the programming mode (see step 1).
• Align the unit in such a way that the prismatic reflector is hit.
• Press the push button twice (see steps 2 and 3).

The setting of the sensitivity to the prismatic reflector is possible in any case.

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 10s 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.

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).

Maintenance

Keep the lens of the sensor free from soiling.

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Diagram of a mechanical device with arrows indicating motion or force direction (no text or symbols)