Electronic Module; Control Modes - Wilo Stratos GIGA Einbau- Und Betriebsanleitung

en
6.2

Electronic module

1 8
6 4
Fig. 5: Electronic module, overview
6.3

Control modes

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
100
Depending on the differential pressure and the set control mode, the electronic module reg-
ulates the speed of the pump to a setpoint that can be adjusted within the permissible con-
5
2
3
trol range.
Continuous adaptation of the hydraulic output adapts to the system's changing require-
ments. Changing requirements can be expected especially when thermostatic valves or mix-
ers are used.
The basic advantages of the electronic control are:
• Energy saving at the same time as reduced operating costs
• Reduced number of differential pressure valves required
• Reduction of flow noise
• Modification of the pump to changing operating requirements
7
1
2
3
4
5
6
7
8
Available control modes are:
Constant differential pressure (Δp-c)
The control keeps the delivery head constant at the set differential pressure setpoint H
Control is independent of the volume flow and operates until the maximum characteristic
curve is reached.
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
Installation and operating instructions • Wilo-Stratos GIGA, Wilo-Stratos GIGA B • Ed.01/2023-05
Fixing points on cover
Operating button
Infrared window
Control terminals
Display
DIP switch
Power terminals (mains terminals)
Interface for IF module
NOTICE
For information on setting the control mode and related parameters, see
section "Operation" and section "Setting the control mode".
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>).
.
S
decreases
S