31
5 Connecting to the bus system
VEGADIF 85 • Profibus PA
53569-EN-230814
5.3.3 Double chamber housing Ex d
1
1
5
0
0
5
1
6
2
7
3
8
4
9
0
5
1
6
2
7
3
8
4
9
1
0
1
6 7 8
Bus
2
3
1
2
+
( )
(-)
Fig. 29: Electronics compartment - double chamber housing
1 Internal connection to the connection compartment
2 Contact pins for the display and adjustment module or interface adapter
3 Selection switch for bus address
Bus
5
1
2
+
( )
(-)
6 7 8
2
3
4
1
Fig. 30: Connection compartment - double chamber housing
1 Voltage supply, signal output
2 For display and adjustment module or interface adapter
3 For external display and adjustment unit
4 Ground terminal for connection of the cable screening
5.3.4 Housing IP66/IP68 (1 bar)
1
2
Fig. 31: Wire assignment in permanently connected connection cable
1 Brown (+) and blue (-) to power supply or to the processing system
2 Shielding
Electronics compartment
Connection compartment
Wire assignment, con-
nection cable