Vega MINITRAC 31 - 5.3 Connection - Level detection

27
5Connectingtopowersupply
MINITRAC 31 • Foundation Fieldbus
41782-EN-211203
5.3 Connection - Level detection
Non-Ex instruments and instruments with non-intrinsically safe
signal output
8
9
10
4
5
7
6
2
1
3
1
1
24
/L
/N
PE
56
22
11
12
2122 1920 18 17 14 1316 15 12
91011
Fig. 15: Electronics and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe signal output
1 Voltage supply
2 Relay output
3 Signal output FF bus
4 Signal input 4 … 20 mA (active sensor)
5 Switching input for NPN transistor
6 Switchinginputoating
7 Transistor output
8 Interface for sensor-sensor communication (MGC)
9 Simulation switch (1 = simulation on)
10 Setting the bus address for sensor-sensor communication (MGC)
3)
567
8
2
1
Fig. 16: Adjustment and connection compartment with non-Ex instruments and
instruments with non-intrinsically safe signal output
1 Terminals for the external display and adjustment unit
2 Contact pins for the display and adjustment module or interface adapter
Ifinductiveloadsorstrongercurrentsareswitchedthrough,thegold
platingontherelaycontactsurfacewillbepermanentlydamaged.
Electronics and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe signal
output
Adjustment and con-
nection compartment
- Non-Ex instruments and
instruments with non-
intrinsically safe signal
output
Connection to a PLC
3)
MGC = Multi Gauge Communication