5
x
Control unit operation
38
FA ROTEX Solaris RPS3 25M - 03/2010
5.3.7 Correcting values for measurement points
If the measurement value of a sensor deviates from the true value, it can be compensated by means of a correcting value.
•
Find the correcting parameter via the menu path: "Choice 2/2" -> "System" -> "Correction values" (see Image 5-5) and
change the values according to Table 5-4.
Table 5-4 Correcting values
5.3.8 Burner inhibit contact
This contact controls an external heat generator in such a way that under favourable weather conditions, the storage tank is not
heated by the external source. For this purpose, the connecting cable BSKK (
16 41 10
), which is available as an accessory,
is required. If the Solaris system reaches an instantaneous output value (adjustable by a specialist via menu path: "Choice 1/2"
-> "Parameter choice" -> "Operating parameter "P min"") or if the storage tank is heated to a minimum temperature
(adjustable by a specialist via operating parameter "T
S
min" see Table 5-5) a contact disables e.g. the burner. The parameter
setting for the burner inhibit contact is described in Image 5-5.
It is possible to set a delay for the switching time of the burner inhibit contact by means of the "Time VBSK" parameter. If the
minimum storage tank temperature "T
S
min" is exceeded or if the preset minimum instantaneous output for burner stop "P min"
is exceeded, the burner inhibit contact only switches off after the set delay time has elapsed (see Image 5-6 for an example).
In the following example (Image 5-6) an imaginary course for the storage tank temperature is presented.
At time "t
1
", the minimum temperature for burner stop defined in operating parameter "T
S
min" is exceeded for the first time. As
the storage tank temperature "T
S
" falls below this value once more shortly afterwards, this does not result in activation of the
burner inhibit contact.
After the storage tank temperature "T
S
" is permanently exceeded at time "t
2
", this results in the activation of the burner inhibit
contact with the delay "VBSK" at time "t
3
". In a similar way, the burner inhibit contact is only deactivated at time "t
6
".
Name
Access level
Measurement &
adjusting range
Factory setting
Step width
Collector temperature correction
Specialist
-9 to +9
0 K
1 K
Return flow temperature correction
-9 to +9
0 K
1 K
Storage tank temperature correction
-9 to +9
0 K
1 K
Flow temperature correction
-9 to +9
0 K
1 K
Flow rate correction
-2 to +2
0 l/min
0.1 l/min
0
Not active
1
Active
t
Time
t
1
...t
6
Discrete points in time
BSK
Burner inhibit contact
TS
Storage tank temperature
TS min
Minimum temperature for burner stop
VBSK
Delay for burner inhibit contact
Illustration 5-6 Example: Function of the delay time when activating the burner inhibit contact
