Siemens Synco 700 Series Basic Documentation page 43

Analog inputs
Type
Setting
Measuring range
Setting
Example
Measured value
correction
Setting
Fault handling
Building Technologies
HVAC Products
With the analog inputs, the following settings can be made:
• Type
• Measuring range
• Measured value correction
Temperature sensor LG-Ni1000 is preselected as standard for all types of temperature
sensors.
The following types of input signals can be handled:
• LG-Ni1000
• 2 × LG-Ni1000
• T1
• Pt1000
• DC 0...10 V
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Inputs > ...X...
Operating line
Type
• Passive temperature signals delivered by LG-Ni1000 sensing elements have a
measuring range of − 50...+ 250 °C
• Passive temperature signals delivered by 2 x LG-Ni1000 or T1 sensing elements
have a measuring range of − 50...+ 150 °C
• Passive temperature signals delivered by Pt1000 sensing elements have a measur-
ing range of − 50...+ 400 °C
• In the case of active signals, the measuring range can be selected. To be entered is
a low and a high limit value.
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Inputs > ...X...
Operating line
Value low
Value high
Flow temperature with an active signal of DC 0...10 V = 0...100 °C:
Low limit value: 0 °C
High limit value: 100 °C
With a passive temperature sensor, the measured value can be readjusted by −3.0 to
+3.0 K to compensate for line resistance. It is thus possible to make onsite calibrations
with a reference instrument.
Main menu > Commissioning > Settings > ... or
Main menu > Settings > Inputs > ...X...
Operating line
Correction
When the Commissioning menu is quit, a check is made to see which sensors are con-
nected. If, later, one of the sensors connected at this point in time is missing, or if there
is a short-circuit, a fault status message "[...X...] sensor error" will be delivered.
If there is an open-circuit of the measuring line, the operator unit displays the measured
value as: - - - - .
A short-circuit is displayed as: oooo.
Boiler sequence controller RMK770
3 Commissioning
Range
Ni1000 / 2×Ni1000 / T1 /
Pt1000 / 0...10 V
Range
Depending on the
selected type
Depending on the
selected type
Range
− 3.0...+ 3.0 K
Factory setting
Ni1000
Factory setting
Depending on
the type
Depending on
the type
Factory setting
0.0 K
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CE1P3132en
23.04.2009