27
6.3.2. - Purging time
During this time the pump runs at its full speed (100 %) to ensure reliable starting. Only
after this purging time does the pump run with speed control and switches to the max.
or min. speed, depending on the variant set (M1-M4). Purging is not used for PWM/
0-10V output.
6.3.3. - Sweep time
In the process of speed control a certain delay before any speed change is needed in
order to avoid quick speed changes and subsequent large temperature oscillations.
The meaning of the parameter is described above.
The indicated percentages are guide values that may vary to a greater or
lesser extent depending on the system, pump and pump stage.
The minimum speed of the pump at relay R1 is specified here. The indi-
cated percentages are guide values that may vary to a greater or lesser
extent depending on the system, pump and pump stage. 100% is the
maximum possible voltage/frequency of the controller.
6.3.4. - Max. speed
6.3.5. - Min. speed
6.3.6. - Setpoint
6.3.7. -
Set ΔT
The maximum speed of the pump is specified here. During the setting the pump runs
at the specified speed and the flow rate can be determined.
The minimum speed of the pump at relay R1 is specified here.
This value is the control setpoint for variant M3 (see Chap. 6.3.1). If the value at the
collector sensor drops below the Setpoint, the speed is reduced. If it rises above the
Setpoint, the speed is increased.
This value is the selectable temperature difference for modes M1 and M2 (see 6.3.1
- Modes). Below this ΔT value between the reference sensors, the speed is reduced.
When above this value, the speed is increased.
Special functions
Caution
Caution
