2013/09 - Kessel

8. Problems and Solutions
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 activate.
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.
In the case that temperature level TF1b 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. The control unit will attempt to restart the
pumps up to 30 times per every 2 minute period. The Temperature
TF1b will not be stored in the control unit’s memory
in the case of a power failure.
In the case that the malfunction cannot be cleared, it is probable
that the pump(s) are damaged and need to be replaced.
Notice:
In the case that the TF1b is exceeded and simultaneously the
Alarm level is reached the following applies:
• Press the Alarm button once will turn off the audible alarm
• Press the Alarm button a second time to acknowledge the
alarm (resets the alarm)
8.4 Displayed Warnings
Warnings will occur by:
• the activation of the failure relay and the connected warning
device.
• display of the type of failure by LEDs on the control unit resulting
From:
Single pump units
- Phase / rotation problems
- Motor protection switch
- Motor temperature
- Running times / level
- Relay error
- Battery error
- Power error
- Level error
- Maximum run time error
- Maximum pump start/stop error
Twin pump systems:
- Phase / rotation problems
- Motor protection switch
- Motor temperature
- Running times / level
- Relay error
- Battery error
- Power error
- Level error
- Maximum run time error
- Maximum pump start/stop error
Conditions which can cause a warning to be displayed are
individually listed in this manual
8.5 ”Alarm” warnings
Alarm warnings occur from:
• the activation of the Alarm relay and the connected warning
device
• the internal signal sender
Two situations can result in an alarm warning:
1.The wastewater level inside the chamber rises above the
level of the ”Alarm” float switch. The audible alarm can be
turned off by pressing the ”Alarm” button. As soon as the
wastewater has fallen below the ”Alarm” float level both
alarms (signal and relay) will be cancelled.
2. If a loaded battery is placed in the control unit, an audible
alarm will be activated in the case of a power failure. This
audible alarm will continue for several hours depending on
the power in the battery. This alarm can be cancelled by
pressing the ”Alarm” Reset button.
8.6 What to do when…
...The motor protection switch has activated -
Open the control unit and reactivate the motor protection
switch.
...A different warning signal activates –
in the case that a warning signal cannot be cleared by
using the instructions in this manual, please contact a
licensed electrician.
...The Aqualift F no longer reacts to incoming signals -
unplug the control unit of the Aqualift F for at least 10 seconds
and then plug back in. In the case that the Aqualift
no longer responds to incoming signal please contact a licensed
professional
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