VEGA WEIGHTRAC 31 Profibus PA - Manual (Page 26)

26
5 Connecting to power supply
WEIGHTRAC 31 • Profibus PA
43837-EN-131119
Information:
The terminal blocks are pluggable and can be detached from the
electronics. To do this, loosen the two lateral locking levers of the
terminal block with a small screwdriver. When loosening the locking,
the terminal block is automatically squeezed out. It must snap in place
when re-inserted.
5.2 Connection - Mass flow detection
Non-Ex instruments and instruments with non-intrinsically safe
current output
7
9
10
5
6
8
1
2
3
4
1 1
24
/L
/N
PE
56
22
11 12
21
22
19
20
18
17
14
13
16
15
12
91
01
1
Fig. 12: Electronics and terminal compartment with non-Ex instruments and
instruments with non-intrinsically safe current output
1 Voltage supply
2 Relay output
3 Adjustment bus address for Profibus PA
4 Connection Profibus PA
5 Signal input 4 … 20 mA (active sensor)
6 Switching input for NPN transistor
7 Switching input floating
8 Transistor output
9 Interface for sensor-sensor communication (MGC)
10 Setting the bus address for sensor-sensor communication (MGC) 1)
Electronics and terminal
compartment - Non-Ex
instruments and instru-
ments with non-intrinsi-
cally safe current output
1) MGC = Multi Gauge Communication