Setting; Wiring Diagrams - Grundfos LC 220 Montage- Und Betriebsanleitung

5.5 Setting

LC 220 has a 4-contact DIP switch. See fig. 7.
To make the settings, open the cabinet cover by means of the
bayonet fastener locks. The locks on the left side have hinge
strings.
Before starting setting, the controller must be off
circuit for at least 10 seconds to ensure the
Note
correct configuration during startup after change
of the DIP-switch setting.
Set the switches 1 to 4 as follows:
• Switch 1 (start level):
Pos. Description
The pump starts when the level in the collecting tank
ON
reaches 250 mm (Multilift) or 520 mm (Unolift).
The pump starts when the level in the collecting tank
OFF
reaches 180 mm.
• Switch 2 (automatic alarm reset):
Pos. Description
The fault indication will be reset after the fault has
disappeared, meaning the indicator lights will be turned
ON
to off and the alarm signals to external alarm devices
and the built-in buzzer will be deactivated.
The alarm signal must be reset manually by pushing the
OFF
selector switch to position "0".
• Switch 3 (service interval):
Pos. Description
The function for reminding that it is time for
maintenance is activated. The yellow indication light will
ON
be on when it is time for maintenance work.
The maintenance interval is 1 year (fixed value).
OFF The function is deactivated.
• Switch 4 (sensor calibration):
Pos. Description
ON Must always be in this position (preset).
OFF For service only.
250mm/520mm
180mm
Fig. 7 DIP switch

5.6 Wiring diagrams

Fig. 8 Wiring diagram for single-phase pump
Fig. 9 Wiring diagram for three-phase pumps
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