24
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LCI40
Series IOM
4. eleCtriCal ConneCtionS
4.8.2 Pulse and Frequency output
•
All outputs are electrically isolated from each other
and from all other circuits.
•
All operating data and functions can be adjusted.
•
Passive mode:
External power supply required: U
ext
≤
32 VDC
I
≤
20 mA at f
≤
10 kHz (over range up to f
max
≤
12
kHz)
I
≤
100 mA at f
≤
100 Hz
•
Active mode:
Use of the internal power supply: U
nom
= 24 VDC
I
≤
20 mA at f
≤
10 kHz (over range up to f
max
≤
12
kHz)
I
≤
20 mA at f
≤
100 Hz
•
Scaling:
Frequency output: in pulses per time unit (e.g. 1000
pulses/s at Q
100%
);
Pulse output: quantity per pulse.
•
Pulse width:
Symmetric (pulse duty factor 1:1, independent of
output frequency)
Automatic (with fixed pulse width, duty factor approx.
1:1 at Q
100%
) or
Fixed (pulse width adjustable as required from 0.05
ms to 2 s)
•
Forward / reverse flow measurement (F/R mode) is
possible.
•
All pulse and frequency outputs can also be used as
a status output / limit switch.
information
For further information refer to
Description of the inputs and
outputs on page 25 and refer to
technical data on page 96.
danGer
For devices used in hazardous
areas, additional safety notes
apply.
information
Depending on the version, the
pulse and frequency outputs must
be connected passively or actively.
Which I/O version and inputs/
outputs are installed in your signal
converter are indicated on the
sticker in the cover of the terminal
compartment.
4.8 description of the inputs and outputs
