KROHNE IFC 090 Converter EN - Manual (Page 16)

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2.6 Connection diagrams for outputs and inputs
Milliammeter
Totalizer
– electronic (EC)
– electromechanical (EMC)
DC voltage,
external power source (U
ext
),
note connection polarity
External voltage source (U
ext
),
DC or AC voltage,
connection polarity arbitrary
Key, N/O contact
Relay for forward/reverse
flow measurement (F/R)
and/or automatic range change (BA)
with 1 or 2 changeover contacts
Please note! This terminal is not
provided for hazardous-duty signal
converters. There is no passive current
output, see connection diagrams
2 , 3 , 6 and 11 .
1 2
Current output
I
active
R
i
≤
500
Ω U
ext
3 4
U
ext
≤
15 V DC
R
i
≤
500
Ω
Pulse output
P
active
for EC
Current output
I
passive
I
I
U ≤ 15 V DC from current output
I
≤
23 mA operation without current output
I
≤
0 3 mA operation with current output
U ≤ 15 V DC from current output
I
≤
23 mA operation without current output
I
≤
0 3 mA operation with current output
Pulse output
P
passive
for EC or EMC
6
Status output
S
active
(connection to B2 and/or B1)
5
Pulse output
P
passive
active EC
U
ext
≤ 32 V DC/ ≤ 24 V AC
I
≤
150 mA
U
ext
≤
32 V DC
I
≤
150 mA
Last
U
ext
7 8
U
ext
≤
32 V DC/
≤
24 V AC
I
≤
150 mA
Last
U
ext U
ext
U
ext
≤
32 V DC/
≤
24 V AC
I
≤
6 mA
Status output
S
passiv e (connection
to B2 and/or B1)
Control input
C
passiv e
(connection
to B2 and/or B1)
Active mode
The current output supplies the power for operation
of the inputs and outputs.
Passive mode
External power source required for operation of the
inputs and outputs.
I