Connection Examples - ABB ProcessMaster FEP630 Manual

36 FEP630, FEH630 ELECTROMAGNETIC FLOWMETER | CI/FEP630/FEH630-EN REV. D
... 5 Electrical connections
... Pin assignment

Connection examples

Input and output functions are configured via the device
software in accordance with the desired application.
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
V2-
41+
B
42/52
A 'Loop power supply (blue)' plug-in card in slot 1
B Digital output, digital output 41 / 42
Figure 50: 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
V2-
V3+
B
V4-
A 'Loop power supply (blue)' plug-in card in slot 1
B 'Digital output (green)' plug-in card in slot 2
Figure 51: Active digital output V3 / V4 (example)
E
+24 V DC , max. 25 mA
0V
012345
G11744-01
E
+24 V DC , max. 25 mA
R
0V
B
G11913
Digital output 41 / 42, 51 / 52 passive on distributed
control system
A I E
41+
51+
42-/
52-
A Transmitter
B Distributed control system /
Memory programmable controller
Ex. 1 Input 1
Figure 52: Digital output 41 / 42 on distributed control system (example)
The R resistors limit the maximum current through the
X
optoelectronic coupler of the digital outputs in the transmitter.
The maximum permissible current is 25 mA. An R
1000 / 1 W is recommended at a voltage level of 24 V DC.
The input on the distributed control system is reduced from
24 V DC to 0 V DC (falling edge) with '1' at the digital output.
B
16 ... 30 V DC
Ex.1
Ex.2
0 V DC
G12366
Ex. 2 Input 2
R Resistor for current limitation
X
R Distributed control system
I
internal resistance
value of
X