Connection Examples - ABB CoriolisMaster FCH400 Series Operating Instructions Manual

CoriolisMaster FCB400, FCH400 CORIOLIS MASS FLOWMETER | OI/FCB400/FCH400-EN REV. E
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 53.
I
Figure 40: (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 25 mA, permanently short circuit-proof
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!
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.
R
OC1
D
Figure 41: 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 61 and PROFIBUS DP® communication
on page 62.
E
+24 V DC
V1+
V2-
0V
G11739
I E
V1+ A
V2- B
G12386

Connection examples

Input and output functions are configured via the device
software in accordance with the desired application.
Parameter descriptions on page 95
Active digital output 41 / 42, 51 / 52, V3 / V4
When the 'loop power supply 24 V DC (blue)' plug-in card is used,
the digital outputs on the basic device and on the option
modules can also be wired as active digital outputs.
Note
Each 'loop power supply (blue)' plug-in card must only power one
output.
It must not be connected to two outputs (for example digital
output 41 / 42 and 51 / 52)!
I
V1+
A
41+
B
42/52
A 'Loop power supply (blue)' plug-in card in slot 1
B Digital output, digital output 41 / 42
Figure 42: Active digital output 41 / 42 (example)
The connection example shows usage for digital output 41 / 42;
the same applies to usage for digital output 51 / 52.
I
V1+
A
V3+
B
A 'Loop power supply (blue)' plug-in card in slot 1
B 'Digital output (green)' plug-in card in slot 2
Figure 43: Active digital output V3 / V4 (example)
E
+24 V DC , max. 25 mA
0V
V2-
012345
G11744-01
E
+24 V DC , max. 25 mA
R
0V
V2- B
V4-
G11913
53