Operating Manual BKS 010
10
Control mode
Function
Edge left
[
The control unit drives the steering frame in a way that the left edge
will follow to the reference position.
1 left sensor is necessary.
Edge right
]
The control unit drives the steering frame in a way that the right edge
will follow to the reference position.
1 right sensor is necessary.
Center guide
[ ]
Guiding to the average value from left and right. This means the
theoretical center line.
2 sensors are necessary.
Center
Frame moves to the center
Reference Potentiometer
To adjust the reference position in runtime
7.2
Adjustment of the sensors
•
Align sensor axis to the web edge: Loosen
the fixing knob on the bracket and adjust
the sensor. Fix the sensor in the new
position. The sensor will be positioned
properly if the web edge goes through the
sensor axis (center of active window; refer
to fig. 6)
•
Reference position is taken from the center
of the sensor detection band (fig. 7). Using
center guide, reference position is in the
middle between the 2 sensor axis. The
controller starts to guide the web to
reference position and to hold this guide
point.
•
The reference position can be adjusted
during operation by using the
potentiometer.
Note
If the web leaves the sensor detection band, control is no longer effective. Hold the web
edge strictly inside the sensor detection band.
Note
If web is not running, it can’t be guided properly to the reference position! The steering
frame moves in the limit-of-travel position and may damage the web.
fig 6:
Aligning of the sensor axis to the
web edge
K100004e
