• To monitor the seal the open and closed zones in the mode A are
only 1.5mm. The zones open+seat and closed+seat are immediate-
ly adjacent. In these zones the outputs "open" and "seat" are
switched simultaneously and the outputs "closed" and "seat" are
switched simultaneously. This signals wear of the valve seal!
• In the mode A only 2 valve positions are to be adjusted, the posi-
tions closed and open. The adjustment of the seat lift must not be
carried out, please skip this program step by pressing the Pos. but-
ton. The sensor then automatically generates the mode A.
Error messages
28
LED
Error description
Measure
close
Flashes at 8Hz directly after
leaving the programming mode
= adjustment error!
Taught position values are not within
the detection range or positions are
not permissible or plausible
Æ Error message can be
acknowledged by
pressing the
position button
close
Flashes at 8Hz = target is at the edge
or outside the detection range or
target is in non defined zones (white
zones, see above diagram)
for longer than 20s
Æ Check the position
of the valve
close
Flashes at 8Hz
= fault in the electronics.
Contrary to the other error messages
this error message cannot be
acknowledged or terminated.
Æ Replace the sensor
during adjustment
during operation
States of the outputs in case of a fault Æ all outputs open
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