English
18
WILO SE 10/2010
8.2.1 Switchgear settings
During the initial commissioning it is necessary to set the unit parameters on the switch-
gear (see installation and operating instructions for the switchgear).
• Compare the default value of the motor current with the details on the motor's rating plate
and, if necessary, correct the settings.
• Set the maximum value of the sensor to 1.0 mwc in the menu item 2.25 “Sensor”. A data
record with factory settings for the activation and deactivation level and the alarm level is
loaded from the memory.
• Set, check and, if necessary, correct the activation and deactivation level and alarm level.
8.2.2 Adjustment of the switching level (differently from the factory setting)
The level for switching the pumps and the alarm on the switchgear can be set differently
from the factory settings (see switchgear operating instructions) and can be selected as
desired in steps of 1 cm.
According to EN 12056-4, the switching volume should be sufficient to allow the volume
of the discharge piping to be replaced during each pump cycle. In addition, the switching
level from the tank filling curve can be defined in accordance with Fig. 10. However, the
level specifications in the technical data table should be observed (minimum values for
activation and deactivation level). If the pump activation level is set higher than the inlet
height, there will be a risk of backflow in the connected objects.
8.2.3 Adjustment of the follow-up time
The pump follow-up time is to be set in the “Follow-up” menu in the switchgear.
It causes the further operation of the base-load pump by the set time value after reaching
the deactivation level. The switching volume can be increased in this way. The follow-up
time also causes slurping operation (pumping of a water-air mixture). In the event of unit-
related fluid hammers of the non-return valve, slurping operation can reduce or even elim-
inate these fluid hammers.
CAUTION! Risk of property damage!
The follow-up time should be activated only for pumps with vortex impellers, since
pumps with non-clog impellers tend to vibrate heavily in slurping operation and thus
put the durability of the pump and unit at risk.
Since only pumps with non-clog impellers are used in the DrainLift XXL, no follow-up
time may be set for safety reasons.
Fig. 10: Tank volume based on the filling level
1 Tank filling volume 1 [l]
4 Minimum pump OFF level (for TP80 pumps)
2 Filling level above installation level [cm]
5 Minimum pump OFF level (for TP100 pumps)
3 Filling level curve (1 tank)
6 Minimum pump ON level (for TP80 pumps)
7 Minimum pump ON level (for TP100 pumps)
0
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0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80
[l] 1
2 [cm]
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3
