Error Handling - Siemens Synco 200 SEZ220 Documentation On Basics

Note
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Siemens
Building Technologies
7.5

Error handling

A check identifies available input signals after quitting the COMMIS
(commissioning) menu. We differentiate between two cases if one of the input
signals previously acquired is missing due to short-circuit or open circuit:
Case Description
1 At least 1 input signal is
missing, but calculation is still
possible.
2 At least 1 input signal is
missing, and calculation is not
possible.
If calculation is not possible (case 2), the following
Calculation not possible
predefined values are displayed:
Function Value
ENTH x 0 kJ/kg
ABSH x 0 g/kg
−50 kJ/kg
ENTH D
DEWPNT 0 °C
The relevant input is not monitored later if one of the input signals is missing after
you quit the COMMIS (commissioning) menu.
See section 5.4 on how to handle input errors.
SEZ220 signal converter
Function block ENTHALPY
Display
Fault symbol
. The calculated values are
displayed (Info pictures and INFO menu
(Inputs/outputs)).
Fault symbol
.
Values according to the table below.
CE1P5146en
02.06.2008