7. Tank monitor and general fault handling
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– WTS-300-E - V4.1 - 20.01.2022
7.5.4 System alarms - cooling
F51 Tank overflow protection
Fault is displayed, when the maximum filling quantity of the tank has been
achieved. See section
F52 Water in tank during cooling
In cooling mode, water has been detected in the washing line through one
of the level inputs.
Possible cause of fault:
- one of the water valves open
Parameters set in [P40] to determine whether only a fault report blinks in
the display or whether the outlet valve of the washing line is also opened.
F53 Thermal protection or fault monitoring compressor
The compressor's motor protection has triggered.
Possible cause of fault:
- Compressor overheated / faulty
F54 Monitoring agitating unit (directly)
The alarm can only be triggered if an agitator monitoring is parameterised
in parameter [P24 or P25].
Alarm is triggered when one of the following agitator faults is detected:
- no agitating unit activity, although agitator was switched on.
- agitating unit activity, although agitator was not switched on.
- Fault contact of the frequency converter triggered
ATTENTION: Depending on the setting in parameters [P24 or P25],
ONLY fault message F54 is displayed - or the compressor is also
switched off. If this is the case, it must be ensured that an alarm is
noticed!!!!
Tip: use optional ESIPM-001 or ESGSM-001!
F55 Timeout quantity-dependent cooling start
Timeout compressor downtime (in case of "milk-volume-dependent cool-
ing start delay"). See also parameter [P55].
Alarm is only active if parameter [P61] is parameterized to 6 or 7.
F56 Broken sensor
The control unit is not receiving any signals from the sensor.
Possible cause of fault:
- Temperature sensor faulty
- Sensor cable damaged
Function “EMERGENCY cooling” is possible, if parameters set in [P4].
Consequence
:
- Defective temperature sensor
- Sensor cable damaged
The "EMERGENCY cooling" function is possible if parameterized in [P4].
Consequence::
- in OFF mode:
- fault code F56 is indicated
- in cooling mode:
- fault code F56 is indicated,
- compressor is switched off,
- alarm is indicated and stored
- in cleaning mode:
- fault code F56 is indicated,
- heating is stopped,
- cleaning continues, cleaning fault
F57 Sensor short circuit
as F56, but fault code F57 is displayed.
F58 Sensor range exceeded
Sensor reports upward or downward exceeding of measuring range as
F56, but fault code F58 is displayed.
WARNING