Samson TROVIS 5575 - 11 Electrical Connection

11 Electrical connection
Caution!
For electrical installation, you are required to observe the relevant electrotechnical regula
-
tions of the country of use as well as the regulations of the local power suppliers. Make sure
all electrical connections are installed by trained and experienced personnel!
Notes on installing the electrical connections
4
Install the 230 V power supply lines and the signal lines separately! To increase noise im
-
munity, observe a minimum distance of 10 cm between the lines. Make sure the minimum
distance is also observed when the lines are installed in a cabinet.
4
The lines for digital signals (bus lines) and analog signals (sensor lines, analog outputs)
must also be installed separately!
4
In plants with a high electromagnetic noise level, we recommend to use shielded cables
for the analog signal lines. Ground the shield at one side, either at the control cabinet in-
let or outlet, using the largest possible cross-section. Connect the central grounding point
and the PE grounding conductor with a cable
≥
10 mm² using the shortest route.
4
Inductances in the control cabinet, e.g. contactor coils, are to be equipped with suitable
interference suppressors (RC elements).
4
Control cabinet elements with high field strength, e.g. transformers or frequency convert-
ers, should be shielded with separators providing a good ground connection.
Overvoltage protection
4
If signal lines are installed outside buildings or over large distances, make sure appropri-
ate surge or overvoltage protection measures are taken. Such measures are indispens
-
able for bus lines!
4
The shield of signal lines installed outside buildings must have current conducting capac
-
ity and must be grounded on both sides.
4
Surge diverters must be installed at the control cabinet inlet.
Connecting the controller
The controller is connected as illustrated in the diagram on the page 101.
Open the housing to connect the cables. To connect the feeding cables, make holes in the
marked locations at the top, bottom or back of the rear part of the housing and fit suitable
grommets or cable glands.
Connecting the sensors
Cables with a minimum cross-section of 2 x 0.5 mm² can be connected to the terminals at
the back panel of the housing.
96 EB 5575 EN
Electrical connection
!