6
Assembly Instructions
enCore FC
Operating Instructions
Page 61 of 120
•
max. cable length:
500 m
Hints on parameterization
Branch
<device> – Basic System – I/O boards –
Board <x>: MFE7
Set the following values:
•
channel
A1+ A1−
or
A2+ A2−
: type
Current input
•
parameter
Power supply
: value
On
(source mode)
6.4.6 Analog Measurement Transmitter (EEx i) via MFE7 Board
(barrier in sink mode)
Hazardous Area
Safe Area
enCore device
MFE7 board
A1+ or A2+
A1− or A2−
SH
Analog pressure
transmitter
4...20 mA, EEx i
Isolated current
repeater barrier
(sink mode)
+
−
(source mode)
Fig. 6-11: Analog pressure transmitter (EEx i) via MFE7 – example
Characteristics MFE7:
•
a galvanically isolated input safe circuit with 4 ... 20 mA interface:
− open-circuit voltage:
approx. 21 V
− voltage at 20mA:
approx. 12.6 V
− max. load:
600 Ω
