SSZ SSZ-BAT, System Manual, Page: 7 / 66

7
System
If the sensor element is not in use currency will flow from connection 3 to connection 5
as well as from connection 4 to connection 6. This leads the relay K1 and K2 to close their
contact and therefore activate the output.
To obtain a secure output signal the contacts of relay K1 and K2 have to be switched in
sequence.
If the sensor element is activated the currency ratios at sensor inlets 5 and 6 of the controller
change.
This change causes the relays to switch off and the output contacts are opened. A short
circuit has the same effect on the transducer connection cable.
If a wire or a conductive stretch of the sensor element is cut, at least one relay is switched off.
Due to the sequence switching of the relay contacts a cut-off of the electric circuit is ensured.
The transducer connections are marked and colour coded.
The following table shows which colours are assigned to which connections.
Activated sensor element
3
4
5
6
K1
K2
13
14
33
34
4-wire cable
Label Rails Bumpers Mats
3 GREEN BLUE
4 BROWN BROWN
5 YELLOW BLACK
6 WHITE WHITE
two 2-wire cable
Label Colour
3 BROWN
4 WHITE
5 BROWN
6 WHITE