Wilo CronoLine-IL-E Notice De Montage Et De Mise En Service page 100

en
H
H
max
H
s
s
H
min
Fig. 6: Control mode Δp-c
H
H
H
max
H
s
½ H
s
H
min
Fig. 7: Control mode Δp-v
H
H
n
max
n
min
Fig. 8: Constant speed
6.4 Twin-head pump function/Y-pipe
application
100 Installation and operating instructions • Wilo-CronoLine-IL-E, Wilo-CronoTwin-DL-E, Wilo-CronoBloc-BL-E • Ed.01/2024-02
Q = Volume flow
H = Differential pressure (min./max.)
H = Differential pressure setpoint
S
Variable differential pressure (Δp-v)
The electronics change the differential pressure setpoint to be maintained by the pump lin-
early between the delivery head H
or increases with the volume flow.
Q
Q = Volume flow
H = Differential pressure (min./max.)
H = Differential pressure setpoint
S
Q
Q
Constant speed
The pump speed can be kept at a constant speed between n
mode deactivates all other control modes.
PID control
If other sensors are used or if the distance between the sensors and the pump is very large,
the standard control modes are not applicable. In these cases, the "PID-Control" function
(Proportional Integral Differential control) is available.
n = const
By selecting a good combination of individual control elements, the operator can ensure
max
fast-reacting, constant control without lasting setpoint deviations. The output signal of the
Q
selected sensor can accept any intermediate value. The relevant actual value reached (sensor
Q
signal) will be shown as a percentage on the status page of the menu (100 % = maximum
measurement range of the sensor).
and ½ H . The differential pressure setpoint H
S S
NOTICE
A differential pressure sensor is needed for the control modes that are be-
ing performed (Δp-c and Δp-v) which sends the actual value to the elec-
tronic module.
NOTICE
The pressure range of the differential pressure sensor must match the
pressure value in the electronic module (menu <4.1.1.0>).
NOTICE
The displayed percent value only corresponds indirectly to the
current delivery head of the pump(s).
The maximum delivery head can even been reached at a sensor signal of
< 100 %.
NOTICE
The properties described in this section are only available if the internal
MP interface (MP = Multi Pump) is used.
decreases
S
und n . "Constant speed"
min max