ABB ProcessMaster FEP630 - Page 35

FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | CI/FEP630/FEH630-EN REV. D 35
24 V DC loop power supply (plug-in module)
Use of the ‘loop power supply (blue)’ plug-in card allows a
passive output on the transmitter to be used as an active
output. See also Connection examples on page 36.
G11739
V1+
IE
+24 V DC
0V
V2-
OC1
Figure 48: (I = Internal, E = External)
The plug-in module can only be used in slot OC1.
Loop power supply 24 V DC
Terminals V1 / V2
Function For active connection of passive outputs
Output Voltage 24 V DC at 0 mA,
17 V DC at 25 mA
Load rating I
max
25 mA, permanently short circuit-proof
Note
If the device is used in potentially explosive atmospheres, the
plug-in card for the loop power supply may only be used to
supply a passive output. It is not allowed, to connect it to
multiple passive outputs!
Modbus / PROFIBUS DP interface V1 / V2 (plug-in card)
A Modbus or PROFIBUS DP interface can be implemented by
using the ‘Modbus RTU, RS485 (white)’ or ‘PROFIBUS DP, RS485
(white)’ plug-in cards.
G12386
D
R
V2-
IE
V1+
A
B
OC1
Figure 49: Plug-in card as a Modbus / PROFIBUS DP interface (I = internal, E = external)
The corresponding plug-in card can only be used in slot OC1.
For information on communication through the Modbus or
PROFIBUS DP protocols, refer to chapters Modbus®
communication on page 43 and PROFIBUS DP® communication
on page 44.