Balluff BKT 67M-003-U-S92 User Manual - page 3
www.balluff.com
Safety Notes
These photoelectric sensors may not be used in
applications where personal safety depends on
proper function of the devices (not safety
designed per EU machine guideline). Read
these operating instructions carefully before
putting the device into service.
The CE Marking confirms that our products
conform to the EU Directives 2014/30/EU
(EMC) and the EMC Law.
In our EMC Laboratory, which is accredited by
the DATech for Testing of Electromagnetic
Compatibility, proof has been documented that
these Balluff products meet the EMC require-
ments of the harmonized standard EN 60947-5-2.
Photoelectric Sensors
Contrast Sensor BKT 67M-003/004-U-S92
5
6
Order Code
Contrast Sensor
Light spot
BKT0003
BKT 67M-003-U-S92
vertical
BKT0004
BKT 67M-004-U-S92
horizontal
The sensor can be mounted using the through-holes
(Ø 3.5 mm) or the M5 tapped holes (max. depth 6 mm).
Caution:
Excessively long screws may damage the sen-
sor.
To change the reading direction (lateral or frontal),
exchange the lens with the cover cap.
If the material is very shiny
(i.e. plastic or metal plate) it is
advisable to tilt the reading head
5° to 20° in relation to the mate-
rial that has to be read and to the
direction of its movement.
The connector block can be
locked in 5 various positions.
Wiring diagramm
Fig. 2: Wiring diagram, pin configuration
Installation
Installation (continuation)
Fig. 1: Dimensions
40
15,8
4
60
32
M12x1
21
5
38,6
43,4
28
4xM5
28
16,5
2xM5
79
15,8
3
Ø24,9
Ø25
OUT READY
+
SET
1
Yellow LED OUT Output function indicator
LED on: Output active
2
Green LED READY Power indicator
LED on: Sensor ready
LED blinks fast: Output overload
LED blinks slowly: insufficient contrast difference
3
Orange LED DELAY Time delay indicator
LED on: Time delay is enabled
LED off: Time delay is disabled
4
Orange LED KEYLOCK Indicates key status
LED on: Keys enabled and operable
LED off: Keys locked
PNP or NPN setting result indication
LED blinks 1x: PNP output is set.
LED blinks 2x: NPN output is set
5
Segment display (Bargraph)
Displays switching threshold level
6
Key +
(red)
Raises switching threshold incrementally.
7
Key SET
Used for acquiring the mark and background.
8
Key –
(green)
Reduces switching threshold incrementally.
Indicators and keys
Fig. 3: Display- and Operating Elements
OUT READY
1
2
3
4
5
6
7
8
+
SET
Enabling the keys
The keys are disabled after the sensor is turned on. This
protects the settings.
To enable the keys:
1. Hold down the SET key for 5 s until the orange KEY-
LOCK LED turns on.
Note:
The keys are automatically disabled after 2 minutes of
inactivity (no keys pressed during that time).
Setting reading mode (Teach in)
During the setup procedure the sensor automatically
adjusts the optimum combination of red, green and blue
emission, dark-on/light-on function and switching threshold:
– The light emission is set to maximize the contrast
between the marking and the background reading.
– The light-on or dark-on function is selected on the
basis of the reading of a darker or lighter marking with
respect to the background.
– The switching threshold is set halfway between the
acquired marking and background values.
1. Place the marking under the light spot and don’t move
the marking for a few seconds while reading is taking
place.
2. Press the SET key until the green LED turns off. The
sensor acquires the marking alternating the red, green
and blue emission until the most effective emission
combination is achieved.
3. Place the background under the light spot and don’t
move the marking for a few seconds until the emission
color is stable.
4. Press the SET key. The green LED blinks on briefly. The
sensor acquires the background alternating the red,
green and blue emission.
5. The green LED READY continuously on indicates the
marking and background acquisition was correct and
the sensor is ready.
Note
If the green LED blinks slowly, the contrast difference is
insufficient. To restore the previous setting, press the
SET key again.
Selecting light-on or dark-on
The sensor automatically selects light-on or dark-on
switching during setup.
Light-on:
For dark background and light marking.
Dark-on:
For light background and dark marking.
Photoelectric Sensors
Contrast Sensor BKT 67M-003/004-U-S92
Balluff GmbH
Schurwaldstrasse 9
73765 Neuhausen a.d.F.
Phone + 49 7158 173-0
Fax +49 7158 5010
balluff@balluff.de
www.balluff.com