Balluff BOS 18K Series - Sensor Manual

CONTROLS

OUTPUT LED (BOS 18K...PD/PE/XA/QC/QD/RE/TB/FR/1N1R, BLE 18K..)
The yellow LED ON indicates that the NO output status is closed.
STABILITY LED (BOS 18K...PD/PE/QC/QD/FR, BLE 18K...PP)
The green LED ON indicates that the received signal has a reserve greater than 30% compared to the output switching value.
POWER ON LED (BLS 18K...1P)
The green LED indicates that the sensor is operating.
POTENTIOMETER (BOS 18K...QD/PD/PE/TB/FR, BLE 18K...PP)
The potentiometer can be used to adjust sensitivity; the operating distance increases turning the potentiometer clockwise.

The potentiometer rotation is limited to 270° by a mechanical stop.
Do not apply excessive torque when adjusting (max 40 Nmm).

INSTALLATION

The sensor can be fixed by means of the M18x1 threaded body through a  18mm hole, using the specific washer and the two CH.24 nuts enclosed (1.5Nm maximum tightening torque).
Alternatively, the sensor can be mounted through the two housing's holes using two screws (M3x22 or longer) and washer.
Amongst the various possible solutions, we suggest to choose the combination that offers the best visibility of the signalling LEDs and the easiest access to the potentiometer.
Wide range of accessories available: 22mm nuts, h=8mm, (2Nm maximum tightening torque) guarantee an improved torque and various orientable fixing brackets ease the sensor positioning (please refer to the accessories listed in the general catalogue).
The operating distance is measured from the front surface of the sensor lens.
Only diffuse type: To improve the detection, the object has to be moved closer or further away from the front surface of the sensor lens.
In case of lateral translation, the object must move as indicated in the figure.

CONNECTIONS

The connections are complaint to the EN 60947-5-2.

M12 CONNERCTOR

DIMENSIONS

TECHNICAL DATA

	BOS 18KF (Axial version)	BOS 18KW (Radial version)
Power supply:	10... 30 Vdc
Ripple:	2 Vpp max.
Current consumption (output current excluded):	35 mA max.
Outputs:	NO and NC; PNP or NPN
Output current:	100 mA max.
Output saturation voltage:	2 V max.
Response time:	0.5 ms (2 ms BLE/BLS)
Switching frequency:	1KHz (250 Hz BLE/BLS)
Indicators:	output-LED (yellow) ( BLS) stability-LED (green) (BOS 18K...QC/QD and BLE) POWER ON LED (green) (BLS)
Setting:	sensitivity potentiometer (BOS 18K...PD/PE/QC/QD/TB, BLE 18K...)
Operating temperature:	-25... 55°C
Operating distance (typical values):	BOS 18KF-...RE: 0.1...5m on R1 BOS 18KF-...QD: 0.1...4.5m on R1 BOS 18KF-...PE: 0...70cm BOS 18KF-...XA: 0...10cm BOS 18KF-...PD: 0...40cm BOS 18KF-...1N1R: 0,5...10cm BLE/BLS 18KF-...: 0...20m BOS 18KF-...FR: depends on fiber BOS 18KF-...TB: 0.1...1,7m on R1	BOS 18KW-...QC: 0.1...3m on R1 BOS 18KW-...PD: 0...40cm BOS 18KW-...XA: 0...8cm BOS 18KW-...1N1R: 0...8cm BLE/BLS 18KW-...: 0...15m BOS 18KW-...TB: 0.1...1,7m on R1
Emission type:	red (660nm) (BOS 18..QC/QD/TB/FR/1N1R) / infrared (880nm) (BOS 18..RE/PD/PE/XA; BLS18..1P)
Ambient light rejection:	according to EN 60947-5-2
Housing material:	PBT
Mechanical protection:	IP67
Connections:	2 m cable 4 mm / M12 - 4 pole connector
Weight:	75 g. max. cable vers. / 25 g. max. connector vers.

SETTING

Setting of BOS 18K...RE
Position the sensor and reflector on opposite sides.
Find the points where the yellow LED (OUT) is switched ON and OFF in both vertical and horizontal positions and fix the sensor in the centre between these points.

Setting of BOS 18K...QC/QD/TB
Position the sensor and reflector on opposite sides.
Turn the sensitivity potentiometer to the maximum position.
Moving the sensor both vertically and horizontally, determine the power on and off points of the yellow LED (OUT) and then mount the sensor in the middle of the points defined. Optimum operation is obtained when the green LED (only BOS 18K...QC/QD) is ON and the yellow LED is OFF.
QC/QD If necessary reduce sensitivity in order to detect very small targets. In order to improve alignment, repeat ^B the procedure detailed above whilst progressively ^MIN reducing the sensitivity.

TB Turn the sensitivity trimmer counterclockwise until the yellow LED turns ON (pos. A). Turn slowly the trimmer again clockwise until the yellow LED turns OFF (Operating condition, pos. B).

Setting of BLE/BLS 18K.../BOS 18...FR (with P/R fibre optics) Position the sensors on opposite sides.
Turn the sensitivity potentiometer to maximum: moving the sensor both vertically and horizontally, determine the power on and off points of the yellow LED (OUT) and then mount the sensor in the middle of the points defined. Optimum operation is obtained when the green LED is ON and the yellow LED is OFF.
If necessary, reduce sensitivity using the potentiometer, in order to detect very small targets. In order to improve alignment, repeat the procedure detailed above whilst progressively reducing the sensitivity.

Setting of BOS 18K...PD/PE/FR with proximity fibre
Turn the sensitivity potentiometer to minimum: the green LED is ON, the yellow LED is OFF. Position the target to detect in front of the sensor or of the fibre terminals. Turn the sensitivity potentiometer clockwise until the yellow LED turns ON (Target detected state, pos. A).
Remove the target, the yellow LED turns OFF.
Turn the sensitivity potentiometer clockwise until the yellow LED turns ON (Background detected state, pos. B).
The potentiometer reaches maximum if the background is not detected. Turn the potentiometer to the intermediate position C, between the two positions A and B. The green LED must be ON.

Setting of BOS 18K...XA/1N1R
The operating distance range of these sensors is fix. Please consider this feature when positioning.

TEST FUNCTION (BLS)

The TEST+ and TEST- inputs can be used to inhibit the emitter and verify that the system is correctly operating.
The receiver output should switch when the test is activated while the beam is uninterrupted.
The inputs activating voltage range is 10... 30 Vdc.

Balluff GmbH
Schurwaldstrae 9
73765 Neuhausen a.d. F. Deutschland
Tel.: +49 (0) 71 58/1 73-0
Fax +49 (0) 71 58/50 10
E-Mail: balluff@balluff.de
www.balluff.com