ABB ProcessMaster FEM630 Operating Instructions Manual page 40

40
F EM63 0 | E L EC TR OM AG N E T I C FLOWM E T E R | O I/F E M6 3 0-EN RE V. A
6 . . .Electrical connections
. . .Pin assignment
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 41.
I E
V1+
V2-
Figure 46 (I = Internal, E = External)
The plug-in module can only be used in slot OC1.
Loop power supply 24 V DC
Terminals
Function
Output Voltage
Load rating I
max
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!
+24 V DC
0V
G11739
For active connection of passive outputs
24 V DC at 0 mA,
17 V DC at 25 mA
25 mA, permanently short circuit-proof
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.
OC1
Figure 47 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.
V1 / V2
For information on communication through the Modbus or
PROFIBUS DP protocols, refer to chapters Modbus®
communication on page 48 and PROFIBUS DP®
communication on page 49.
R
I E
V1+ A
V2- B
D
G12386