Disturbances / Internal Controls - Kessel Aqualift F Installation Manual

8. Problems and Remedial Actions / Solutions
Single Pump Aqualift F
• "Pump Off" float switch which does not activate. In the case
that the "Pump Off" float switch does not shut off, the alarm
warning will be activated when the wastewater level rises
above the "Pump On" level. The pump will turn off when the
wastewater level falls below the "Pump On" level.
• "Pump On" float switch which does not activate. The alarm
will activate and the pump will start when the wastewater
rises above the "Alarm On" level. Pump will turn off when
the level falls below the "Pump On" level.
• "Pump On" float switch which is stuck in the "On" position.
A warning will be displayed after the wastewater falls below
the "Pump Off" level. The pump remains in activation.
• "Alarm" float switch is stuck in the "On" position. A warning
will be displayed after the wastewater level has fallen below
the "Pump On" level – the warning will be a continuous
(non-stop) alarm warning. The alarm can be acknowledged
by pressing the Alarm button. The warning relay will remain
activated until the problem has been cleared / fixed. The
pump continues to run. A level malfunction warning occurs
Double Pump Aqualift F
• "Pump Off" float switch which does not activate. Malfunc-
tion warning occurs when the Pump 1 On level exceeded.
Both pumps activate only when the wastewater level ex-
ceeds the Pump 2 On level and turn off when the level falls
below the Pump 1 On level.
• "Pump On" float switch which does not activate. Malfunc-
tion warning occurs after wastewater level falls below the
Pump Off level. The pumps remain in operation. A level mal-
function warning occurs.
• "Pump 2 On" float switch which does not activate.
An alarm will activate after the wastewater level has fallen
below above the "Pump Off" level. Both pumps will conti-
nue to run. A level malfunction warning occurs
• Constantly closed "Pump 1 On" level switch. An alarm will
activate after the wastewater level has fallen below the
"Pumps Off" level. Both pumps will continue to run. A level
malfunction warning occurs.
• Constantly closed "Pump 2 On" level switch. An alarm will
activate after the wastewater level has fallen below the
"Pumps Off" level. Both pumps will continue to run. A level
malfunction warning occurs.
• Constantly closed "Alarm" level switch. Malfunction warning
occurs after the wastewater level falls below the 'Pump On'
level. A continuous alarm sounds. The alarm can be ack-
nowledged by pressing the Alarm button. The warning relay
will remain activated until the problem has been cleared /
fixed. The pump continues to run. A level malfunction war-
ning occurs

8.3 Disturbances / Internal controls

The control unit continuously monitors motor temperature,
the motor protection switch and the rotation / phase of the
motors. In the case of a disturbance the pump will either be
shut off or prevented from starting. This will result in a corre-
sponding alarm and the lighting of an LED.
8.3.1 Phase / Rotation Monitoring
In the case that L2 and / or L3 fail, the "Phase/Drehfeld" LED
will continuously light and the "Störung" relay will activate.
Since the control of L1 is still active, the failure of L1 will not
be displayed. In the case that L1 fails the installed warning
device will sound as long a battery has been installed in the
control unit. In the case that the rotation is incorrect, the
"Phase / Drehfeld" LED will blink.
In the operational mode "Hand" it is possible to run the pump
with the incorrect rotation – in all other
operational modes the control unit will block the functioning
of the motor in the case that the rotation is incorrect.
8.3.2 Motor Protection Switch
In the case that a motor protection switch is activated either
manually, by a short circuit or by an overload, a malfunction
warning will be displayed and the malfunction relay will ac-
tivate.
8.3.3 Motor temperature
Each motor of the Pumpstation Aqualift F is equipped with
two temperature sensors which send data to the control unit.
• Temperature (not recorded) – TF1a (TF2a)
• Temperature (recorded) – TF1b (TF2b)
In the case that temperature level TF1a has been reached it
will be displayed on the control unit and the malfunction relay
switch will activate. Also the control unit will shut down the
pumps. As soon as the pumps cool down they will return to
normal operation.
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