B+B Sensors WLSW-24V, Руководство по подключению и эксплуатации

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Connection and operation manual
Technical changes reserved
0141 0316-152 13.05.2016
Level controller for conducting liquids
24 V OEM-version without housing
5.1.2 Operating voltage
The operating voltage is connected at the terminals “SUPPLY VOL -
TAGE“. The rating of nominal voltage is mentioned on the PCB and
also on the relay and must be maintained as per specifications on
the data sheet in order to ensure an error free functioning. A too
high operating voltage can lead to damage of the device. Extremely
low or unstable operating voltage leads to malfunctioning.
The device has a rectifier bridge after the input supply connection.
Hence polarity of input voltage is arbitrary. However, if several de
-
vices are connected to the same voltage supply, the connections
should be done with same polarity to avoid any potential difference
in the medium.
5.1.3 Load circuit
!
The safety of load circuit, if required, should be taken care of
through some external protection arrangement. (max. 5 A NO con
-
tact, 2 A NC contact). To switch higher currents, corresponding swit -
ching elements should be used.
The NO/NC contacts of both the relays are potential free and are
terminated at the connection socket. The connection of load is done
as per connector configuration. The NO contact of the relay is provi
-
ded with a 390 V varistor for surge suppression.
Pin Description
10 LIVE (only 230 V model)
11 NEUTRAL (only 230 V model)
4 Relay 1 common terminal
5 Relay 1 NO contact
6 Relay 1 NC contact
7 Relay 2 common terminal
8 Relay 2 NO contact
9 Relay 2 NC contact
E1...E4 / electrode
AC/DC
10 11
AC/DC 24 V
AC/DC AC/DC
E2 E1 E4 E3
B+B Thermo-Technik GmbH | Heinrich-Hertz-Straße 4 | D-78166 Donaueschingen
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