OG5042 - Motion detector IFM - Free user manual and instructions

Product type	Photoelectric barrier (through-beam motion detector)
Brand	IFM
Model	OG5042
Power supply	10-30 V DC, galvanically isolated supply with overload protection
Power consumption	Not specified (typical < 50 mA)
Range	See label on device (adjustable via programming)
Switching output	Dry contact (NO/NC depending on wiring); max diagnostic output load: 10 mA
LED indicators	Green (operation), yellow (switched output), red (fault or short circuit)
Main functions	Non-contact object detection, sensitivity adjustment for static or moving objects, plug and play mode, locking/unlocking settings
Electrical connection	3-wire cable (BN = brown, BU = blue, BK = black) or connector
Mounting	Receiver (OGE-...) and emitter (OGS-...) with mounting brackets; precise alignment required
Settings	Push-button programming: activate programming mode, measure with/without object, max sensitivity
Diagnostic output	Available on PIN 2 (not for cable version); signals contamination, misadjustment, short circuit, or internal error
Maintenance	Clean lenses with a soft cloth; do not use solvents or harsh chemicals
Safety	Disconnect power before wiring; comply with UL 508 (limited voltage category)
Operating conditions	Indoor use; avoid condensation and lens contamination
Repairability	No spare parts available; replace device if defective
General information	Manual 17 pages; languages: FR, DE, EN; category: motion detector

Frequently Asked Questions - OG5042 IFM

How to connect the OG5042 detector?

Disconnect power. Connect wires according to color code: BN (brown) = +supply, BU (blue) = -supply, BK (black) = switching output. For programming, refer to the diagram on page 17 of the manual.

What supply voltage should be used?

The device requires a 10-30 V DC supply, galvanically isolated and overload protected, in accordance with UL 508.

How to adjust sensitivity for static objects?

Activate programming mode by pressing the button for ~2s until the red LED flashes. Then, in programming mode (yellow and green LEDs flash alternately), press once with the object in the beam, then once without the object. The green LED lights up to confirm.

How to adjust sensitivity for moving objects?

Activate programming mode, then in programming mode, press once while letting at least two objects pass through the beam for ~1s. Repeat the operation a second time. The green LED lights up to confirm the setting.

What do the different LEDs mean?

Flashing green LED: device operational. Flashing yellow LED: switched output. Flashing red LED: fault (misadjustment, dirty lenses). Yellow+red flashing alternately at 2 Hz: short circuit at output; at 1 Hz: internal error (output not switched).

How to clean the detector lenses?

Use a soft, dry cloth. Do not use solvents or cleaning products that could damage the plastic lenses.

How to lock the settings to prevent accidental modification?

Press the setting button for 10 seconds. The red LED lights up briefly, then the yellow and green LEDs flash alternately; after 10s, the LEDs turn off and the sensor is locked. To unlock, repeat the same 10s operation.

What to do if the red LED flashes after a setting?

This indicates that sensitivity adjustment is not possible because the signals of the object and background are too close. The sensor returns to operating mode without changing the sensitivity. Try repositioning the detector or clean the lenses.

Can I use this detector outdoors?

The device is designed for indoor use. Outdoors, it must be protected from moisture and significant temperature variations. Check the ambient conditions in the manual.

How to restore factory settings (maximum sensitivity)?

Enter programming mode (press the button for ~2s). Interrupt the beam, then press the button twice (steps 2 and 3). The sensor returns to maximum sensitivity.

USER MANUAL OG5042 IFM

Functions and features

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

Range (r): see type label.

Electrical connection

The device shall be supplied from an isolating source and protected by an overcurrent device such that the limited voltage circuit requirements in accordance with UL 508 are met.

Isolate power, then connect the unit (see page 17 or type label). Core colours (for sensors with cable connection): BN = brown, BU = blue, BK = black.

Programming of the output function by wiring (see page 17 or type label). Load of the function check output (fc output): max. 10mA

Installation

Fix the receiver (type OGE-...) in position.

Align the transmitter (type OGS-...) towards the receiver and tighten in the same way. Maximum range is only possible with precise alignment.

NB: Commissioning

The through-beam sensor is supplied ready to operate (plug and play) set at the max. sensing range. This is sufficient if the through-beam sensor can operate with maximum excess gain (highest contrast). The following setting procedures should only be necessary in less straightforward applications, for example if partly transparent objects must be detected.

Setting of the sensitivity with stationary objects

1	Activate the programming mode of the unit. 接收er transmitter 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. receiver Press once.
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.

3	Set the sensitivity without object. receiver transmitter Press once.
	The yellow and green LEDs go out for approx. 1s, then 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.

Setting of the sensitivity with moving objects

1	Activate the programming mode of the unit. 接收er transmitter 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	During the measurement (approx. 1s) allow at least two objects to move through the sensing area of the lens. 接收 Press once.	←→transmitter
	The yellow and green LEDs go out for approx. 1s, then flash again alternately.

3	During the measurement (approx. 1s) allow at least two objects to move through the sensing area of the lens. 接收 Press once.	← transmitter
	The yellow and green LEDs go out for approx. 1s, then 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.

Setting of the maximum sensitivity

• Go into the programming mode (step 1).
• Interrupt the light beam.
• Press the setting button twice (see steps 2 and 3).

Locking/Unlocking:

Press for 10s.	The red LED lights for a short time, then the yellow and green LEDs flash alternately; after 10s the LEDs go out, the unit is locked.
Press for 10s.	After 10s the LEDs go out, locking is annulled.

Operation

Check the safe functioning of the through-beam sensor. Display by LEDs and by the function-check output.

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	flashing alternately, 2 Hz: output short-circuited flashing alternately, 1 Hz: internal malfunction (output is not switched)

Function check output

(not for sensors with cable connection)

• Switches in the case of incorrect object detection (error in object detection, maladjustment, soiling of the lenses) after approx. 4 s, it switches back approx. 4 s after the object is again correctly detected.
• Immediately switches in the case of a short circuit of the switching output, it switches back approx. 2 s after the fault has been rectified.
• Immediately switches in the case of an internal fault, it is only switched back by turning off the operating voltage and then on again.

Maintenance

Keep the lens of the sensor free from soiling. For cleaning do not use any solvents or cleaning agents which could damage the plastic lenses.