15
5.3 Control panel
100 % standby operation, pages 25 and 26.
Figure 10 shows the control panel of the CU 212 module.
Fig. 10
Key to the symbols in fig. 10:
5.4 Battery back-up functions
100 % standby operation, pages 25 and 26.
If a back-up battery for CU 212 (accessory for certain variants) is
installed, the following functions will be carried out if the normal
electricity supply to the LCD 108 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 (only certain variants) is activated – can be
reset by means of the reset button!
• If the liquid level in the pit rises above the level for high-level
alarm, the second orange indicator light from the top will be
flashing. If the liquid level is higher than the level for start of
the next pump, the top orange indicator light will be
permanently on.
• If the starting delay function and automatic test run were
selected (switch 4 of the DIP switch), the start-up will be
delayed after the electricity supply has been switched on when
the liquid level is sufficiently high, see section 5.2.
The table below shows the situations which may occur if the
normal electricity supply to the LCD 108 fails and a back-up
battery is connected:
= the indicator light is off.
= the indicator light is on.
= the indicator light is flashing.
TM01 6397 3902
Pos. Description
1
Green indicator light for pump 1 and 2, indicating
starting delay (flashing) and pump operation
(permanently on).
2
Red indicator light for pump 1 and 2.
Flashing: Fault in PTC resistor/thermal switch
On: Fault in motor-protective circuit breaker.
3
Red indicator light, indicating wrong phase sequence
(only certain variants and three-phase pumps only).
4 Red indicator light, indicating common alarm.
5
ON-OFF-AUTO selector switch for pump 1, three
positions, see section 5.5.
6
ON-OFF-AUTO selector switch for pump 2, three
positions, see section 5.5.
7
Reset button, push-button for manual resetting of alarm
signals to external alarm devices and the built-in buzzer
(only certain variants), see section 5.5.
8
Orange indicator light, which is activated by the float
switch for common stop.
9
Orange indicator light, which is activated by the float
switch for start of the first pump.
10
Orange indicator light, which is activated by the float
switch for high-level alarm. In case of high-level alarm,
the indicator light is flashing.
11
Orange indicator light, which is activated by the float
switch for start of the next pump.
12
Green indicator light, indicating that the electricity
supply has been switched on.
CU 212
21
1
2
1234
7
56
12
11
9
8
10
Mains supply failure:
• The common alarm is active.
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.
• The top orange indicator light is on.
• The second orange indicator light from
the top is flashing.
• The green indicator light (electricity
supply switched on) is off.
To Next Page
Loading...
Need help?
General
