5
Analog inputs X1…X5
5.1
Activation and setting values
The following signals can be connected to universal inputs X1…X5 at the SEZ220
signal converter:
Connectable signals
Xx
x
LABEL
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46
B
04
•
Passive analog signals.
•
Active analog signals.
Universal Xx inputs are always available. If not required for their functionality, they
can be used for diagnostics purposes.
Activate the function
To activate, assign each input used to a LABEL (identifier). The identifier also
defines the input’s unit. The following identifiers are available:
LABEL (identifier)
Explanation
TEMP
Temperature sensor without any ready assigned functionality
(type), unit °C / °F.
%
DC 0…10 V signal, unit %.
0.0
Universal input with 1 decimal, resolution –99.9...+999.9,
increment 0.1.
0000
Universal input with no decimal, resolution –999...+9999,
increment 1.
The following types (TYPE) care available for the identifier TEMP:
Setting value TYPE
•
NI (LG-Ni 1000)
•
2XNI (2 x Ni1000)
•
T1 (T1)
•
PT (Pt 1000)
•
0-10 (DC 0…10 V)
•
Ohm (0…1000
Ω
)
The type is always DC 0...10 V for identifiers %, 0.0 or 0000.
The measuring ranges for the passive temperature signals are defined as follows:
Measuring ranges
passive temperature
signals
Temperature signal
Measuring range
LG-Ni 1000
–50…
+
250 °C
2 x Ni 1000 or T1
50…150 °C
Pt 1000
50…400 °C
You can set the measuring range by entering a minimum and maximum value for
DC 0…10 V signals and 0...1000 Ohm resistance signals.
Measuring range active
signals and 0…1000
Ω
Example:
Room temperature with an active DC 0…10 V signal = 0…50 °C:
−
Minimum measured value (MIN VAL): 0 °C
−
Maximum measured value (MAX VAL): 50 °C
You can enter a measured value correction (CORR) for passive temperature
sensors aimed at compensating line resistance.
Setting value CORR
This allows for on-site calibration using a reference measuring instrument.
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Siemens
SEZ220 signal converter
CE1P5146en
Building Technologies
Analog inputs X1…X5
02.06.2008
