VEGA VEGABAR 44 Profibus PA - Manual (Page 12)

12 VEGABAR 44 (Profibus PA)
Electrical connection
2 Electrical connection
2.1 Connection instructions
The electronics in VEGABAR 44 requires a
supply voltage of 9 … 32 V DC. The supply
voltage and the digital output signal are lead
via the same two-wire connection cable to the
terminals. The external energy is provided
via a segment coupler.
Note the following instructions for electrical
connection:
- Connection must be made according to the
specific installation standards (e.g. in Ger-
many acc. to the VDE-regulations).
- Electrical connection must have a
protective measure against polarity
reversal.
- The connection of field instruments is gen-
erally made via T-adapters on stubs.
- Screened cable is recommended for con-
nection (cable types see chapter "1.3
Technical data“). The shielding must be
grounded on both ends (on the T-adapter
and on VEGABAR).
- For use in Ex areas, the installation
regulations must be observed.