Electrical Connection - IFM Electronic LK81-Serie Bedienungsanleitung

Electrical connection

The unit must be connected by a suitably qualified electrician.
The national and international regulations for the installation of
electrical equipment must be observed.
Voltage supply according to EN50178, SELV, PELV.
Disconnect power before connecting the unit as follows:
Pin / connection
1 UB+
2 OUT2 (operating output)
3 UB-
4 OUT1 (operating output)
5 OUT3 (operating output)
6 OUT-OP (overflow output)
7 not connected
Output configuration in binary mode: OUT1...4 = Switching outputs for
quasi-analogue evaluation.
Connector 8-pole on connector 4-pole are available as accessories
order no. E11228 (Y connection cable), order no. E11627 (T-Splitter box).
For safe function the sensor housing must be electrically connected to
the vessel wall. To do so, use the housing connection with the blue
cable lug (see scale drawing) and a cable piece with a wire cross-
section of min. 1.5 mm
When using metal tanks the electrical ground of the tank serves as the
machine earth. When using plastic tanks an electrode has to be installed that
is connected to the machine earth (e.g. sheet metal in the tank in parallel
with the probe; min. distance to the probe: → page 29, distance x).
1
2
3
4
5
6
7
ifm sockets
brown
white
blue
black
grey
pink
lilac
2
that is as short as possible.
L +
OUT2
L
OUT1
OUT3
OUT-OP/OUT4
n.c.
core colours
sockets following
DIN 47100
white
brown
green
yellow
grey
pink
blue
31