Conel CDA 70, Руководство пользователя

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CIO DESCRIPTION
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SCRIPTION
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3.2.4.
I/O signals parameters
3.2.4.
I/O signals parameters
Signal
name
Measuring
range [V]
Resolution
[bit]
Sampling
[msec]
Average
from
samples
Hysteresis Control level
I/O1 0 to 5 10 100 Optional
1 - 128
Optional
0 - 255
Optional
I/O2 0 to 5 10 100 Optional
1 - 128
Optional
0 - 255
Optional
I/O3 0 to 5 10 100 Optional
1 - 128
Optional
0 - 255
Optional
I/O4 0 to 5 10 100 Optional
1 - 128
Optional
0 - 255
Optional
I/O5 0 to 5 10 100 Optional
1 - 128
Optional
0 - 255
Optional
3.3. Measuring other CDA70 signals
3.3.1.
Measuring the supply voltage
In CDA70, two more signals are evaluated. The first one is called UN+ (DC SUPLY); it
is an internal one and it measures the supply voltage at the supply terminals of CDA70. The
measuring range is 0 to 20V. The supply voltage value influences the function of CDA70. If it
drops under the set value, the VF module is disconnected because its correct function is no
longer secured and thereby, at the same time, the discharge current of a backup battery (if
used) is decreased.
The second one is INAC (AC SUPLY) linked to the supply connector (see the supply
connector description). The measuring range is 0 to 20V. The signal is protected against
overvoltage by a protective element, which blocks the voltage higher than 16V. INAC is
designed for measuring of network supply voltage presence. A change of the value is recorded
into CDA70 statistics as a dropout and start (rise) of the 230V supply voltage.
Beware - it is impossible to connect 230V supply voltage directly to the input!
Signal
name
Measuring
range [V]
Resolution
[bit]
Sampling
[msec]
Average
from
samples
Hysteresis Control level
UN+ 0 to 30 10 5000 4 2V Optional
INAC 0 to 30 10 5000 4 2V Optional