23
•
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!
•
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!
14.3 Control panel
Systems for parallel operation with 4 levels (5 electrodes),
page 101.
Figure 14 shows the control panel of the CU 214 module.
Fig. 14
Key to the symbols in fig. 6:
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
(parallel operation with 4 levels
(5 electrodes), page 101)
, 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
described 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 se-
lector 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 common stop.
9
Orange indicator light, which is activated by the
electrode for start of the first pump.
10
Orange indicator light, which is activated by the
electrode for start of the next pump.
11
Orange indicator light, which is activated by the
electrode for high-level alarm.
In case of high-level alarm, the indicator light is flashing.
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
