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•
Switch 5, 6 and 7, stop delay:
When the DIP switch setting is changed, the controller must be
switched off for at least 1 minute!
The stop delay is the time from the stop signal is given until the
pump is stopped.
The stop delay is adapted to the tank capacity and the pump type.
The setting should only be changed if the tank is not sufficiently
emptied in the application in question.
0 sec.
2 sec.
4 sec.
6 sec.
•
Switch 8:
When the DIP switch setting is changed, the controller must be
switched off for at least 1 minute!
Switch 8 has no function in connection with the applica-
tion, but this setting must be maintained!
•
Switch 9, automatic alarm resetting:
When the DIP switch setting is changed, the controller must be
switched off for at least 1 minute!
This setting ensures automatic resetting of alarm signals
to external alarm devices and the built-in buzzer. How-
ever, an alarm signal will only be reset if the cause of the
fault no longer exists.
At this setting, the alarm signal must be reset manually by
means of the reset button (the reset button is described in
8.5 Reset button and ON-OFF-AUTO selector switch).
•
Switch 10, automatic restarting:
When the DIP switch setting is changed, the controller must be
switched off for at least 1 minute!
This setting must not be changed. It ensures automatic
restarting of the motor after it has been cut out on
account of too high temperature.
8.4 Battery back-up functions
If a back-up battery for module CU 211 is installed, the following
functions will be carried out if the normal electricity supply to the
LC 109 fails (see also the illustrations below):
•
The common alarm is active, the red indicator light is on –
cannot be reset!
•
If the external alarm device for common alarm is supplied from
an external power source, this device will be active – cannot
be reset by means of the reset button!
•
The built-in buzzer is activated – can be reset by means of the
reset button!
•
If the liquid level rises above the level for high-level alarm, the
top orange indicator light will be flashing and the second
orange indicator light from the top will be permanently on.
•
If the starting delay function and automatic test run were
selected (switch 4 of the DIP switch) (factory setting), the
start-up will be delayed after the electricity supply has been
switched on when the liquid level is sufficiently high, see
7.2 DIP switch setting.
8 sec.
10 sec.
12 sec.
14 sec.
The table below shows the situations which may occur if the nor-
mal electricity supply to the LC 109 fails and a back-up battery is
connected:
= the indicator light is off.
= the indicator light is on.
= the indicator light is flashing.
Mains supply failure:
CU 211
• The common alarm is active.
1
The red indicator light is on.
• The green indicator light (electricity
supply switched on) is off.
Mains supply failure and high-level alarm:
• The common alarm is active.
The red indicator light is on.
CU 211
1
• The top orange indicator light is flash-
ing.
• The three other orange indicator lights
are on.
• The green indicator light (electricity
supply switched on) is off.
15
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