Setting Of Lc 107 And Lcd - Grundfos LC 107 Montage- Und Betriebsanleitung

2.5 Setting of LC 107 and LCD 107

The modules CU 211 and CU 212 have a 10-pole DIP switch in
the bottom right corner, see fig. 3.
Note: During setting, the controller must be off circuit for at least
1 minute to ensure the correct configuration during start-up after
change of the DIP switch setting.
The DIP switch setting offers the following possibilities:
• selection of starting delay and automatic test run (switch 4),
• setting of stop delay (switches 5, 6 and 7),
• selection of automatic alarm resetting (switch 9),
• selection of automatic restarting (switch 10).
Fig. 3
The DIP switch factory setting is shown in fig. 3.
Each individual switch (1 to 10) of the DIP switch can be set to
position OFF or ON.
Note: The DIP switch must not be set to other switch
combinations than those described in this section.
Set the switches 1 to 10 as follows:
• Switches 1, 2 and 3, application type:
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
This setting determines the actual application type.
• Switch 4, starting delay and automatic test run (only in the
case of battery back-up):
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
At this setting, the start-up is delayed within the range
from 0 to 255 sec. (random) after the electricity supply
has been switched on when the liquid level is
sufficiently high.
Automatic test run carried out every 24 hours.
After the electricity has been switched on, the pump will
start immediately when the liquid level is sufficiently
high.
No automatic test run.
• Switches 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 must be set so that the level pickups are
hanging freely above the liquid surface when all pumps have
been switched off. It must be ensured that the pumps are not
running dry.
0 sec.
15 sec.
30 sec.
45 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 actual
applications, 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. However, 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 sections
AUTO selector switch - LC 107 one-pump controller
and 5.2 Reset button and ON-OFF-AUTO selector
switch - LCD 107 two-pump
• Switch 10, automatic restarting:
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
This setting enables automatic restarting after the PTC
resistance/thermal switch of the motor has cut out the
pump. Restarting will not be carried out until the motor
has cooled to normal temperature.
When the pumps connected are used in
explosion hazard areas, switch 10 must not be in
this position!
At this setting, the pump must be restarted manually
after the PTC resistance/thermal switch of the motor
has cut out the pump. To restart the pump, push the
ON-OFF-AUTO selector switch into position OFF for a
short period (the ON-OFF-AUTO selector switch is
described in sections
AUTO selector switch - LC 107 one-pump controller
and 5.2 Reset button and ON-OFF-AUTO selector
switch - LCD 107 two-pump
When the pumps connected are used in
explosion hazard areas, switch 10 must be in this
position!
60 sec.
90 sec.
120 sec.
180 sec.
4.2 Reset button and ON-OFF-
controller).
4.2 Reset button and ON-OFF-
controller).
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