9. Other Information
Both settings "6" and "7" are used for volume-dependent switching on of the compres-
sor in order to prevent the milk from freezing during robot operation when the cooling
mode starts. Depending on the quantity of milk *, the compressor is switched on either
sooner or later and then longer or shorter.
* The control calculates the current milk quantity in the tank from the entered
capacity of the feed pump [P50] and the measured duty cycle of the feed pump.
Measured milk quantity = P50 x measured running time milk feed pump **
** The running time of the milk feed pump(s) is determined via digital inputs. I.e. the
digital inputs in the parameters [A21 - A28] need the assignment of the settings 8,
9 or 10 (depending on the number of milk pumps). For several milk pumps, the
total pump running capacity is added -> and from this it is the total quantity of milk.
Depending on setting „6“ or „7“ the calculation of the milk quantity starts already
- Setting „6" = only with the beginning of the cooling mode
- Setting „7“ = or in the cleaning mode
Setting "7" is selected if during the cleaning of the main tank milk has already been
milked into a buffer tank and this milk is pumped into the main tank after the end of
cleaning to start the cooling mode. This amount of milk is added to the amount of milk
from the start of cooling mode.
The running time of the compressor is calculated from the formula:
If milk is transported from the feed pump into the tank while the compressor is running,
the running time of the compressor will be extended accordingly.
If the compressor is switched off, it cannot start again until at least the quantity of milk
set in parameter [P53] has been added.
ON ON
Compressor
OFF OFF ONOFF OFF
> [P55] minutes = alarm
Cooling mode*Cleaning*
* Settings in [P61]
6: START Cooling mode
7: START Cleaning mode
Information on cooling start versions 6 and 7
Running time compressor =
measured quantity of milk
P53
x P52
Page 79
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