KROHNE UFM 530 HT EN - Manual (Page 23)

ELECTRICAL CONNECTIONS
4
23
UFM 530 HT
www.krohne.com 12/2013 - 4002393201- HB UFM 530 HT R02 en
INFORMATION!
The electrical input and output signals can be connected either in active or in passive mode. In
active mode DC supply voltage is provided from the terminal V+. In passive mode supply voltage
is provided from an external source.
Non Ex version with Profibus PA
Figure 4-5: Terminals for instrument with Profibus PA (non Ex).
Terminal Function Specification
1 Communication connection - For Fieldbus communication
2 Communication connection + For Fieldbus communication
3 Combined current output (I), digital
input (C) and Pulse / frequency output.
Current output (I) includes HART
® -
Communication.
Current output (I): I ≤ 22 mA,
R
load
≤ 680 Ω, U
max
= 15 VDC.
Digital input (C): low = 0...5 VDC,
high = 15...32 VDC (will be switched off
when current output activated).
Pulse output: I
max
= 150 mA,
U
max
= 32 VDC / 24 VAC, maximal
frequency = 2 kHz.
4 Analog input 2, for temperature or
pressure measurement. 0(4)...20 mA, R
i
= 58,2 Ω, fuse = 50 mA.
5 Analog input 1, for temperature
measurement. 0(4)...20 mA, R
i
= 58,2 Ω, fuse = 50 mA.
6 Common ground