29
•
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 applies to both stop electrodes, pos. 1 and 2, on
page 103. If the two stop electrodes are placed so close to
each other that the stop delay for the upper stop electrode has
not
expired before the liquid level reached the lower stop elec-
trode, then both pumps will not be stopped until the stop delay
for the lower stop electrode has expired.
•
Switch
8
:
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
•
Switch
9
, automatic alarm resetting:
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
•
Switch
10
, automatic restarting:
When the DIP switch setting is changed, the controller must
be switched off for at least 1 minute!
16.3 Control panel
Systems for full-control operation with 4 levels (5 electrodes),
page 103.
Figure 18 shows the control panel of the CU 214 module.
Fig. 18
Key to the symbols in fig. 18:
The
stop delay
is the time from the stop signal is given until the
pump is stopped.*
It must be ensured that the pump is not running dry.
0 sec.
60 sec.
15 sec.
90 sec.
30 sec.
120 sec.
45 sec.
180 sec.
Switch 8 has no function in connection with the actual
application
(full-control operation with 4 levels
(5 electrodes), page 103)
, but this setting
must
be
maintained!
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 de-
scribed in section
This setting enables automatic restarting after the motor
thermal switch 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 motor thermal switch 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 section
).
When the pumps connected are used in explosion
hazard areas, switch 10
must
be in this position!
TM
02 46
43 140
2
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, indicating
pump fault.
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
.
6
ON-OFF-AUTO selector switch for pump 2, three
positions, see section
.
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
8
Orange indicator light, which is activated by the
electrode for stop of the last pump.
9
Orange indicator light, which is activated by the
electrode for stop of the last pump but one.
10
Orange indicator light, which is activated by the
electrode for start of the first pump.
11
Orange indicator light, which is activated by the
electrode for start of the next pump.
12
Green indicator light, indicating that the electricity
supply has been switched on.
2
1
1
2
1
2
3
4
7
5
6
12
11
9
8
10
CU 214
