KROHNE MFC 400 EN - Manual (Page 43)

ELECTRICAL CONNECTIONS
4
43
MFC 400
www.krohne.com 08/2013 - 4002075802 - MA MFC 400 R02 en
4.10.4 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 kΩ
• 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 38.
• For the electrical connection of bus systems, please refer to the separate documentation for
the respective bus systems.
Figure 4-11: Current output active I
a
Figure 4-12: Current output passive I
p
.book Page 43 Monday, August 26, 2013 9:05 AM