Commissioning B 3
ekrPro Com
60
web guide controller EDV No.: MD.191.01.05/1.6.x Chapter: B 3
with analog sensors Date: 23.11.2007 Page: 19/73
B 3.5.8 Add. Functions – Special functions
Useful additional functions can be realised using the ekrPro Com
60
.
These functions can be accessed quickly under this menu point.
These functions deal with the Tear Off Detection and Oscillation.
B 3.5.8.1 Tear-Off Det. – Tear-off detection
Tear-off detection enables, dependent on the selected sensing
type (edge / contrast guiding) the following functions:
1. With web edge guiding:
Detection of torn off sections on the web edge using edge
sensors IR2001/2005, US2007, …
This function is activated during web edge guiding, if during
operation of the web guiding system errors arise from the web
edge that is being scanned.
The function detects both tears into the material web (inward
tear) as well as projecting material (outward tear).
2. With contrast guiding:
Guiding on interrupted printed or contrast edges with contrast
sensors T62D1 or TW54C5.
Tear-off detection can be implemented using the same sensors that
are used for web guiding.
Alternatively a second sensor can be used.
Tear-off
inwards
Tear-off
outwards
Interrupted printed
or contrast edge
Light spot of the
contrast sensor