Strona
9
z
26
ATTENTION
The set hysteresis value automatically limits the extreme values of the control range
so that the operating range of the controller is not exceeded.
3.4.3. Delaying the activation of the cooling process.
This function makes it possible to switch on the controller by pressing the button
and the cooling process will be delayed. This delay will be equal to the set time
in parameter 0d (default 0d=0). This solution enables simultaneous activation of the
controller's operation with the start of the milking process.
If this function has been activated, after pressing the button
, the display will show the
time to start the cooling process. This signaling, in order to more accurately distinguish
the displayed time, is additionally underlined by blinking alternately dots
at the display.
At any time, by pressing the button
again you can interrupt the countdown of time,
and thus go to the cooling process.
3.4.4. The supervisory of the unit operation.
The controller is equipped with compressor safety functions, such as:
CF – minimum standstill time of the unit,
CA – minimum operating time of the unit,
CC – maximum working time of the unit.
Setting of these parameters can also affecton actual temperature fluctuations in the
cooling chamber. For example, if the compressor has a minimum operating time
of 5 minutes and the control temperature has been reached after 3 minutes,
the compressor will not be switched off earlier than after 5 minutes. The same applies
to the minimum standstill time of the unit. In this case, the temperature fluctuations
in the cooling chamber will be higher than it would appear from the set hysteresis
(parameter HI).
3.4.5. Automatic work of the stirrer.
Automatic stirrer operation can take place in two variants, depending on the settings
made:
F0=0 – cyclical operation of the stirrer, independent of the operation of the unit,
F0=1 – continuous operation of the stirrer during operation of the unit and cyclic
operation during the unit standstill.
The cyclic work of the stirrer takes place as follows: work – standstill – work – ..., always
starting from work.
The working time of the stirrer is determined by parameter E1, and its standstill time is
determined by parameter E2.
