Samson TROVIS 5573 - Page 153

EB 5573 EN 16-71
Appendix A (conguration instructions)
16.4.9 Releasing a control circuit/controller with binary input
The release of an individual control circuit or the controller with the binary input only be-
comes effective when the respective control circuit is in automatic mode (
icon). The re-
leasedcontrolcircuitalwaysworksinautomaticmode;thedeactivatedcontrolcircuitbe-
haves as if it were transferred to stand-by mode (
). Control operation remains active, how-
ever, in any case for processing an external demand. The control circuit can be released by
thebinaryinputwhenthebinaryinputiseitheramakecontact(BI=0)orabreakcontact
(BI=1).
− In systems with downstream heating circuit without a valve (Anl 2.x, 4.x), BI1 only inuenc-
es the operation of this heating circuit.
− In system Anl 3.0, BI1 inuences the operation of the entire controller (except for process-
ing an external demand).
Functions Default Conguration
Release RK1 at input BI1 0
BI=1
CO1->F14-1
bE=1,bE=0
Release controller Rk2 at input BI2 0
BI=1
CO2->F14-1
bE=1,bE=0
Release controller at input BI1 0
1
CO5->F15-1
bE=1,bE=0
16.4.10 Speed control of the charging pump
This function allows the delivery rate of the charging pump in systems with buffer tank
(CO1->F21-1)andinsystemswithDHWstoragetank(CO4->F21-1)tobevaried
based on the temperature. When this function is activated, the input SF2 is automatically ac-
tivated.IncombinationwithCO1->F06-0orCO4->F02-0,thisinputisonlyusedfor
speed control and not to stop the storage tank charging.
All storage tank charging actions start with the minimum delivery rate of the charging
pumps. As soon as the charging temperature is nearly reached, the delivery rate of the
chargingpumpisincreasedandthevalvecontrolstheowrate.Ifthechargingtemperature
drops5°Cbelowitsassociatedsetpoint,thedeliveryrateisreducedagain.Atthelatest
when the temperature at SF2 has reached the 'Start' value to reduce the delivery rate, the lin-
ear reduction of the delivery rate based on the temperature at SF2 starts. If the temperature
at SF2 reaches the 'Stop' value to reduce the delivery rate, the charging pump runs again at
Note