English (GB)
35
10. Detailed descriptions of functionality
10.1 Control modes
The supported control modes are described further in this section.
H: Pressure (Head)
Q: Flow
Control modes Description Illustration
> Constant speed (0)
> Constant frequency (1)
Open loop:
The setpoint of the booster is interpreted as the setpoint for
the performance.
The setpoint value is a percentage of the maximum
performance of the booster.
No sensor is required in these modes.
TM04 2289 2208
> Constant head (3)
> Constant pressure (4)
> Constant differential pressure (5)
Closed loop:
The setpoint of the booster is interpreted as the setpoint for
the pressure.
The booster adapts the speed so that the pressure is
constant, regardless of the flow.
A pressure sensor is required.
TM04 2290 2208
> Constant flow (7)
> Constant temperature (8)
> Constant level (10)
Closed loop:
The setpoint of the booster is interpreted as the setpoint for
the flow, temperature or level. Constant flow is indicated in
the diagram.
A relevant sensor is required:
• A flow sensor for flow control
• a temperature sensor for temperature control
• a level sensor for level control.
TM04 2288 2208
> Proportional pressure (6)
Closed loop:
The setpoint of the booster system is interpreted as a
proportional-pressure setpoint as shown in the fig. A
pressure sensor is required.
TM04 2291 2208
> DDD AUTO
ADAPT
(128)
The setpoint of the DDD system is interpreted as a
proportional-pressure setpoint as shown in the figure. The
proportional curve is adjusted automatically once a day
according to remote DDD sensor data.
TM05 3241 1012
> FLOW
ADAPT
(129)
This control mode works similar to AUTO
ADAPT
, except that
the flow-limiting function, FLOW
LIMIT
, is always active and
limits the flow to the value ActualMaxFlowLimit.
TM05 3242 1012
> Closed-loop sensor (130)
This is a general purpose closed-loop control mode that
you can use in cases where the pump is used for a type of
control not covered by one of the other control modes.
To Next Page
Loading...
