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Installation and operating instructions • Wilo-Control SC2.0-Booster • Ed.01/2023-09 29
Fig.23: Settings→Setpoints→Setpoint 2
menu item
With the 2nd setpoint, a further pressure setpoint can be set.
In the p-v control mode, the share and maximum flow rate are taken from the 1st setpoint.
The 2nd setpoint can be activated by a digital input or via a preset timing.
Fig.24: Settings→Setpoints→Switching on
and off of BLP menu item
Start and stop thresholds are given as relative values and are calculated based on the active
setpoint.
The calculated absolute pressure thresholds are displayed in the info area on the right-hand
side.
When the unit is ready for operation and the current pressure falls below the start threshold,
the BLP is started.
With the p-v control mode, it is possible to define how many pumps the system should start
with when falling below the start threshold.
In the p-c control mode, always start with one pump. Depending on the actual decrease,
pumps are switched off again or additional pumps are started.
In the p-c control mode, relative start and stop thresholds can be set for switching peak-load
pumps on and off.
The absolute pressure values are calculated based on the active setpoint and displayed on
the right-hand side.
In addition to the pressure thresholds, the speed of the BLP is used to switch other pumps on
and off.
The parameters are not available in the p-v control mode.
Pump activation and deactivation is automatically controlled while optimising energy con-
sumption.
Fig.25: Settings→Setpoints→Delays menu
item
If only the BLP is running, after the deactivation threshold for the BLP is exceeded, the
switch-off is delayed by the specified value “BLP off”.
If, in the meantime, the pressure falls below the shut-off threshold, the BLP is not stopped.
For the PLP, there is a delay for switching off and on in each case.
Fig.26: Settings→Setpoints→External set-
point menu item
If the operating pressure of the system is to be variable, it can be specified via an analogue
input.
This function is switched on by activating the external setpoint.
The current range of the input signal can be set.
In the 4-20mA current range, a conductivity test takes place.
The adjustable pressure range corresponds to the range of the set pressure sensor for the
output side.
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