Grundfos LC 221 Series, Installation And Operating Instructions Manual

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English (GB)
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6. Operating LC 221 controller
6.1 Description of display
The display of the LC 221 level controller is shown in fig. 14.
Fig. 14 LC 221 display
The table below describes the symbols shown in the display as
well as the corresponding functions and indications.
TM
05
18
61
38
11
Symbol Function Description
Settings locked
The symbol is visible when the setup menu is locked. This prevents unauthorised persons from
making changes to the settings. To unlock the buttons, enter the code 1234.
Automatic operating
mode The symbol is visible when the level controller is in automatic mode, i.e. when the selector switch
is in position AUTO.
Information
The symbol is visible when there is information about faults, operating hours, number of starts,
max. current of pump. The symbol will be visible if the level controller detects a fault and the fault
will be written into the fault log. After you have entered the fault log, the symbol will switch off.
See section
6.3 Information menu .
Setup
The setup menu holds information about setup for start level, rated current, the stop-, start- and
alarm delay, selection of maintenance interval, reset (automatic or manual) and reset back to
factory settings. For the procedure and a description of the settings, see section
6.2 Setup menu .
Alarm
The symbol is visible if an alarm situation occurs. The type of alarm will appear from the
information menu. The symbol disappears when the fault has disappeared.
Impulse counter The symbol is visible when the number of starts in the information menu is shown in the display.
Settable times and fault
indication
The symbol is visible when the operating hours in the information menu and the delays set in the
setup menu are shown in the display. The symbol flashes when max. operating time has been
exceeded.