Time Delay Start When Using Dual Pump Operation; Rated Pump Current; Communication; Alarms - Homa HSK15 Operating Manual

6.2.4

Time delay start when using dual pump operation

When the level exceeds the second upper setpoint or in case of high water, then both pumps run
simultaneously under peak load operation mode. In order reduce possible mains overload caused by
the inrush currents of the pumps, the second pump is switched on after a time delay. The delay time
can be set here. The time delay should be selected such that the second pump is switched on only
after of the inrush current of the pump 1 has dropped.
Note: This function is not effective in case the second pump has been switched on manually.
6.2.5

Rated pump current

For electronic current monitoring, the rated operating current of the pump must be set. If the current
exceeds the rated value, an alarm is given after a certain time period. The more the current exceeds
the rated value the shorter this time period is before an alarm is given.
If the measured current falls below half the value of the rated current, then an under-current alarm is
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given .
In order to ensure a safe function, the entered value should be approx. 10%, that of the current
showed in the display (under normal operation conditions).
Entering a value of 00.0A deactivates current monitoring. Current indication then is only that of an
ampere meter.
6.3

Communication

This menu appears only, if the HSK features SCADA functions. The adjustment and setting
possibilities in this menu point are described in a separate manual.
6.4

Alarms

In this menu behaviour of the control in case of faults is described. The menu has the following
structure:
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Not in case of HSK controls featuring manual 0-Manual-Automatic switch(es)
HOMA Pump Technology
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