4
ELECTRICAL CONNECTIONS
68
IFC 300
www.krohne.com
06/2009 - 4000069802 - MA IFC 300 R03 en
4.11.4 Modular inputs/outputs and bus systems
Current output active (only current output terminals C/C- have HART
®
capability),
modular I/Os
•
U
int, nom
= 24 VDC
•
I
≤
22 mA
•
R
L
≤
1 k
Ω
•
X designates the connection terminals A, B or C, depending on the version of the signal
converter.
Current output passive (only current output terminals C/C- have HART
®
capability),
modular I/Os
•
U
ext
≤
32 VDC
•
I
≤
22 mA
•
U
0
≥
1.8 V
•
R
L
≤
(U
ext
- U
0
) / I
max
•
X designates the connection terminals A, B or C, depending on the version of the signal
converter.
CAUTION!
Observe connection polarity.
INFORMATION!
•
For further information on electrical connection refer to Description of the inputs and outputs
on page 55
.
•
For the electrical connection of the bus systems, please refer to the separate documentation
for the respective bus systems.
Figure 4-30: Current output active I
a
Figure 4-31: Current output passive I
p
.book Page 68 Wednesday, June 10, 2009 4:20 PM
