IFM Electronic KNM Serie Bedienungsanleitung Seite 14

• Adjustment to the empty state outside the operating range (e.g.
adjustment to the empty state with direct contact with an electri-
cally grounded medium, for example when the sensing face is
immersed into water)
• Electronic error or damage of the unit in the sensing area
• Internal error (can only be erased by switching off the operating
voltage for a short time, hardware reset)
Setting normally closed/open (OES mode)
The switching output of the unit can be used as normally closed or nor-
mally open contact.
First the OES mode must be activated.
Activate the OES mode:
Activate both Teach-In elements "SET" and "MODE" simultaneously
for at least 5 s (you need two screwdrivers or similar metal objects).
Now the unit displays the current output function (normally closed or
normally open).
Normally open:
Normally closed:
By actuating the Teach-In element "SET" you can change between the
two output functions as often as you like.
Deactivate the OES mode:
There are different ways of deactivating the OES mode and returning to
the operating mode.
• In the OES mode actuate the Teach-In element "MODE"
• If after activation of the OES mode no button is pressed for 30 s, the
unit automatically returns to the operating mode without any
changes being made.
• If you have already pressed the Teach-In element "SET" in the OES
mode and no button is pressed for 30 s, the unit automatically
returns to the operating mode and stores the last output function set
(normally closed or normally open).
Without confirming the change the new setting is not stored.
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only the green LED flashes slowly
both the green and the yellow LED are flashing