7. Tank monitor and general fault handling
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– WTS-300-E - V4.1 - 20.01.2022
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7.
Tank monitor and general fault handling
7.1 Description of tank monitor operation
After the initial installation the tank monitor works reliably only after one or
two cooling cycles (learning of the tank processes).
Trouble-free operations during this time are important!
Der During the entire cooling and cleaning process, the built-in tank monitor keeps
check on the correct operation of all processes, in order to guarantee the perfect
state of the milk. Faults are displayed flashing in the display via corresponding fault
codes. Depending on the type of alarm, two LEDs (red and green) are flashing or lit.
In the case of errors which may jeopardise the milk quality, the problem is indicated
by a red LED as a “critical alarm”. In this case milk must not be added to the tank
before a careful check has been carried out.
In the "F" parameters (see section 8.10), a system alarm, an informative alarm or a
critical alarm is defined for each fault. It is also parameterized, whether a relay func-
tion or an SMS message should be carried out. For this to take effect, the relay
functions in the "A" parameters (see section 8.11) must be assigned to a relay or the
SMS function must be activated.
The tank monitor of the WTS-300 has the following alarm types:
Critical tank monitor alarms
(red LED + fault code in the display)
During cooling:
- min. and max. milk temperature
- agitator function and stirring intervals
- duration of power failure
- milk temperature too high for too lon
During cleaning:
- cleaning temperatures
- wash duration
Informative tank monitor alarms
(green LED + fault code in the display)
During cooling:
- milk temperature too high for too long
- milk temperature too low
- agitator failure and stirring times
- max. time till next wash
- duration of power failure
During cleaning:
- cleaning temperatures
- detergent injection and acting time
Additional WTS-300 system alarms
(only fault code in the display)
(depending on parameter settings,
may be both critical and informative)
During cooling:
- Cooling time for first milking
- broken sensor
- sensor short-circuit, etc.
During cleaning:
- monitoring of butterfly valve, cleaning pump, etc.
- water intake and outlet times,
- heating times, etc.
IMPORTANT:
A list of all alarms and a
description of how they
are configured can be
found in section 8.10
“Alarm -> Event assign-
ment”.
