27
6.3.2. - Purging time
During this time period, the pump is running with full speed (100%) to ensure trouble-
free startup. After this time has passed, the pump is set to speed control and is set to
max. speed or min speed, depending on the speed control variant „6.3.1. - Modes“ on
page 26 chosen. Purging time can not be applied with PWM or 0-10V output.
6.3.3. - Sweep time
Sweep time determines the inertia of the speed control to prevent strong fl uctuations
in temperature. Sweep time is the timespan for a complete change from minimum to
maximum pump speed.
Caution
Caution
The indicated percentages are guide values that may vary to a greater or
lesser extent depending on the system, pump and pump stage.
The indicated 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 specifi ed here. During the setting the pump runs
at the specifi ed speed and the fl ow rate can be determined.
The minimum speed of the pump at relay R1 is specifi ed here. During the setting the
pump runs at the specifi ed speed and the fl ow rate can be determined.
This value is the control setpoint for variant 3 (see „6.3.1. - Modes“). Below this value at
the collector sensor, the speed is reduced. Exceeding the speed is increased.
This value is the selectable temperature difference for mode 1 and 2 (see “6.3.1 -.
Speed Mode”). Below this value ∆T between the reference sensors, the speed is re-
duced. Exceeding the speed is increased.
Special functions