Manual

ELECTRICAL CONNECTIONS 4
39
IFC 050
www.krohne.com08/2013 - 4002184002 - MA IFC 050 R02 en
Pulse/frequency output passive
• U
ext
≤ 32 VDC
• f
max
in the operating menu set to f
max
≤ 100 Hz:
I ≤ 100 mA
R
L
≤ 47 kΩ
closed:
U
0
≤ 0.2 V at I = 10 mA
U
0
≤ 2 V at I = 100 mA
open:
I ≤ 0.05 mA at U
ext
= 32 V
• f
max
in operating menu set to 100 Hz < f
max
≤ 10 kHz:
(over range up to f
max
≤ 12 kHz)
I ≤ 20 mA
R
L
≤ 10 kΩ for f ≤ 1kHz
R
L
≤ 1kΩ for f ≤ 10 kHz
closed:
U
0
≤ 1.5 V at I = 1 mA
U
0
≤ 2.5 V at I = 10 mA
U
0
≤ 5 V at I = 20 mA
open:
I ≤ 0.05 mA at U
ext
= 32 V
Use shielded cables!
• The minimum load impedance R
L, min
is calculated as follows:
R
L, min
=(U
ext
-U
0
)/I
max
• Can also be set as status output; for the electrical connection refer to status output
connection diagram.
INFORMATION!
• For frequencies above 100 Hz, shielded cables are to be used in order to reduce effects from
electrical interferences (EMC).
• Shielding takes place at the electrical connection (S) of the output terminal block.
INFORMATION!
• Independent of connection polarity.
• The output is open if the signal converter is not powered.
Figure 4-15: Pulse/frequency output passive P
p