IFM Electronic Efector 150 KNM Bedienungsanleitung Seite 13

If this operation starts from the locked state, the green LED does not
react at first to avoid any hint to a hidden function.
If you want to release the locking, proceed as follows:
1
Press the programming button
When the programming button is released the unit is unlocked and all
programming functions are active again. The unit returns to the oper-
ating mode.
Setting the output function as normally closed or normally open
The switching output of the unit can be operated as normally closed
or normally open. To do so, the unit must first be disconnected. To
generate the inverted output response the operating voltage is con-
nected again by reversing the wires.
Error messages
If the adjustment to the empty or full state is not possible, the red LED
flashes quickly after the adjustment attempt (about 2Hz).
To delete this error message press the programming button once or dis-
connect and then connect power again. The adjustment values suc-
cessfully read so far remain unchanged.
Possible reasons for an error message:
• The signal difference between the empty and full state is too small
(e.g. adjustment to the empty and full state without sufficient
change of the level).
• The signal change between the empty and full state is in the wrong
order (e.g. adjustment to the empty state when the vessel is full and
then adjustment to the full state when the vessel is empty).
All manuals and user guides at all-guides.com
for min. 10s
After about 10s all LEDs
go out briefly.
The unit is unlocked again
and the LEDs indicate the
current operating state
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