OB5022 - Amplifier IFM - Free user manual and instructions

Product Type	Fiber optic amplifier
Brand	IFM
Model	OB5022
Category	Amplifier
Dimensions (approx.)	30 x 80 x 60 mm
Weight (approx.)	50 g
Power supply	24 V DC (brown = +24 V, blue = 0 V)
Output type	PNP or NPN (depending on wiring)
Range	Depends on the fiber optic used
LED indicators	Red (error/short circuit), yellow (switching state), green (power on)
Main functions	Non-contact detection of objects and materials, teach-in adjustment of switching threshold
Connection	IFM fiber optics FE-11 and FT-11
Protection	IP65 (cover closed)
Mounting	On DIN rail or mounting device
Maintenance and cleaning	Clean the fiber optics if dirty
Safety	Disconnect power before any connection
Spare parts and repairability	Replaceable fiber optics

Frequently Asked Questions - OB5022 IFM

What type of fiber optic to use with the OB5022?

The amplifier is designed for IFM fiber optics types FE-11 (thru-beam) and FT-11 (diffuse reflection).

How to mount the fiber optics?

Unscrew screw A, slide the fibers into openings B until you feel resistance (O-ring), push until stop (optical elements), hold and tighten screw A.

What do the LEDs indicate?

Red LED on = detection error, fast blinking = short circuit, slow = internal error. Yellow LED = switching state. Green LED = device powered on.

How to adjust the switching threshold for moving objects?

Press until the red LED blinks (programming mode). Pass the objects through the beam, press once, wait until the yellow and green LEDs blink, press again. The green LED turns on to confirm.

How to adjust the threshold for a stationary object?

Press until red blinks. Place the object in the beam, press once. Remove the object, press once. The green LED turns on if successful.

What to do if the red LED blinks after adjustment?

This indicates that adjustment was not possible (object and background signals too close). The device returns to operating mode without changing the threshold.

What is the supply voltage?

The power supply is 24 V DC. The brown wire is +24 V, the blue wire is 0 V, the black wire is the switching output.

Can non-IFM fiber optics be used?

Only the specified IFM fiber optics (FE-11, FT-11) are recommended to ensure proper operation and range.

How to clean the amplifier?

Clean the fiber optic ends with a lint-free cloth if they are dirty. The housing can be wiped with a dry cloth.

What IP protection rating?

The device offers IP65 protection when the cover is closed after adjustments.

USER MANUAL OB5022 IFM

Controls and indicators 7

Mounting

Mount the fibre optics 8

Electrical connection 8

Setting of the switching threshold 9, 10

Connection 15

8

Français

The switching amplifier senses objects and materials without contact and indicates their presence by a switching signal.

• Only for the connection of the ifm fibre optics type FE-11 and FT-11.
• Sensing range depends on the fibre optic.

Controls and indicators

red LED:

• indicates the setting mode
• lights in the uncertain reception zone (maladjustment, soiling of the lens)
• flashes quickly: output short-circuited
• flashes slowly: internal malfunction

yellow LED:

switching status, lights when the output is switched

green LED:

lights when ready for operation

push button: starts the manual setting of the switching threshold

Mounting

Mount the unit on a DIN rail or by means of a mounting fixture.

Mount the fibre optics:

1. Loosen the screw A, fig. 1.
2. Place the fibre optics into the sensor holes B until you feel a slight resistance (O ring), fig. 2.
3. Push the fibre optics until they come to a stop (optical elements) and hold them, fig. 3.
4. Tighten the screw A.

If the fibre optics are not in contact with the optical elements, the sensing range is reduced.

Electrical connection

Isolate the power, then connect the unit as specified (see the last page or the type label).

• Core colours (for sensors with cable connection): BN = brown, BU = blue, BK = black.
• Programming of the output function by wiring (see the page 15 or the type label).

Setting of the switching threshold (1)

• Objects move through the detection area
• Diffuse reflection fibre (FT ...) and through-beam fibre (FE ...)

The unit detects input signals of various intensity in any sequence and calculates the optimum switching threshold.

1

Allow the objects to pass through the detection area. Press until the red LED flashes.

Yellow and green LEDs flash alternately (= unit is in the programming mode).

2

Press once.

Yellow and green LEDs go out for a short time, then flash again alternately.

3

Press once.

Yellow and green LEDs go out for a short time, then the green LED is on (= unit is in the operating mode).

If the setting of the switching threshold is not possible (e.g. object signal and background signal are about the same), the red LED flashes after step 3. The unit then passes into the operating mode with the switching threshold being unchanged.

Setting of the switching threshold (2)

• Stationary objects
• Diffuse reflection fibre (FT ...) and through-beam fibre (FE ...) The unit detects input signals of various intensity in any sequence and calculates the optimum switching threshold.

1

Press until the red LED flashes.

Yellow and green LEDs flash alternately (= unit is in the programming mode).

2

Place the object into the detection area.* Press once.

Yellow and green LEDs go out for a short time, then flash again alternately.

3	Remove the object.* Press once.		Yellow and green LEDs go out for a short time, then the green LED is on (= unit is in the operating mode).
			out on then the green LED is on (= 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 switching threshold is not possible (e.g. object signal and background signal are about the same), the red LED flashes after step 3. The unit then passes into the operating mode with the switching threshold being unchanged.

Operation

Only open the cover to make adjustments. Close it after the adjustment has been made in order to maintain the protection IP65.

Check whether the unit functions properly.