Balluff BOL 27K-NS-01-S115 User manual

Balluff Inc.
Beginning Edge Setup Procedure for the BOL 27K-PS/NS-01-S115
Optical Line Sensor
Setting up the sensor
Note:Assuming factory defaults upon setup. To reset the sensor, enter
the MENU (step 4 below) and press the + button until RESET (rESE) is
displayed. Press the SET button.
1) Place a 150mm strip of reflective tape (BOL 27K-TAPE-01) on a flat surface
90˚ to the face of the sensor.
2) Maximum sensing height is 200mm. Measurement range on tape is 150mm at
this distance. (Note: at closer distances, the analog scale will be less).
3) Once the sensor is mounted, press and hold the +and –buttons
simultaneously for a minimum of 6 sec. until TAPE flashes. (The area of the
tape has been taught and the 4-20mA scale has been designated).
4) Press the SET button for a minimum of 6 sec. MENU will display on the
screen.
5) Press the +button until SAVE is displayed.
6) Press the SET button to save the beginning edge mode.
Note: The sensor will automatically default to a ready state if a button has not been
pushed within 8 seconds while programming. If a mistake is made upon setup, wait a
minimum of 8 sec for the sensor to exit the programming mode and reset to factory
defaults.
Note: The measured object does not have to completely remain within the measureable
window on the tape during area measurement mode. Edges of material can extend
beyond range of sensor.
Setting Tolerances for Discrete Output
The discrete output can be triggered to turn on between two values.
1) Place the material under the sensor to determine where the desired tolerance
levels will be set (referencing the value displayed on the sensor screen for
high and low values).
2) Press the + button for a minimum of 2 sec. Th_1 will be displayed.
3) Press the SET button.
4) Press the + or – button to increment/decrement the value where the discrete
output setting is desired to turn on.
5) Hold the SET button for a minimum of 1 sec to save the low-end point.
6) Repeat steps 2-5 and select Th_2 in this procedure to teach the high-end point
where the discrete output will turn off.

Balluff Inc.
CONNECTION
M12 CONNECTOR
* Available only for the versions with RS485 serial interface (consult factory).
NOTE: The wire colors are referred to the cables manufactured according to the
European standard.
FUNCTIONING
The BOL 27K-PS/NS-01 sensor is a line sensor.
The typical functioning diagram is shown in the drawing given below. The object to
detect is placed in front of the sensor and the reflecting tape (inside the package) behind
the sensor. The sensor illuminated with IR lights the tape and receives the reflected light
on a photodiode array. Each object placed between the reflecting tape and the sensor is
naturally detected as a dark spot on a luminous background.
The sensor has 5 operating modes:
•Object beg.: the position of the first object edge is detected
•Object end: the position of the second object edge is detected
•Object center: the centre of the object is measured
•Width: the distance between the first and last object edge is measured
•Area: the sum of all the object obscured zones is measured
The following diagram shows the sensor output according to the possible object position
inside the meaurement zone.
*
*

Balluff Inc.
First ob.
edge
Last ob.
edge
Center
Width
Area
A
Beg
End
(Beg+End)/2
End-
Beg
End-
Beg
B
End
End
0
0
End
C
Beg
Beg
0
0
1023-
Beg
D
0
0
0
0
1023
E
0
0
0
0
0