STORK TRONIC ST501-KU3KA.12P Скачать руководство пользователя страница 7

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Order No.: 900220.020

V2.24

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Parameter description:

The following values can change the equipment characteristics

and are therefore to be set with utmost care.

P0: Indication actual value of sensor F1

The here indicated temperature presents the sum of
actual measured value of feeler F1 and the actual
value correction according to parameter P1.

P1: Calibration sensor F1, actual value
correction

This parameter allows the correction of actual value
deviations caused for example by sensor tolerances
or extremely long sensor lines. The regulation
measure value is increased or decreased by the
here adjusted value.

P2: Indication actual value of sensor F2

The here indicated temperature presents the sum of
actual measured value of sensor F2 and the actual
value correction according parameter P3.

P3: Calibration sensor F2, actual value
correction

P4: Evaluation of sensor F2

Sensor F2 can be used for the determination of the
evaporator temperature (P4=1) or for the second
thermostat (P4=2).
If, in simpler refrigerant plants only the refrigerating
chamber sensor is used, the feeler entrance for
sensor F2 as well as its data recording (P4=0) can
be deactivated here. Among other, parameter d2
has no meaning in the deactivated condition.

P5: Indication mode

The actual value can be indicated with different
accuracy.
Actual values and parameter values are always set
for highest accuracy.

P6: Display unit, indication in standby mode

This parameter allows display settings (°F or °C) and
("AUS" or "OFF") in standby mode.

P7: Sensor type

This parameter makes it is possible to adjust the
feeler type of both sensors. Depending on the
hardware not all sensor settings are possible.

P8: Filter

This parameter can determine by how many
measured values an average value is to be formed.

r0: Hysteresis for the compressor contact

Parameter r0 sets the temperature margin between
switching off and switching on of the compressor. A
small hysteresis permits a more exact regulation,
however also leads to more frequent switching of the
compressor. The hysteresis is set one-sided above
the setpoint.

r1: Setpoint limitation (minimum)
r2: Setpoint limitation (maximum)

These parameters limit the adjustment range of the
setpoint S1, in order to avoid that the end user sets
inadmissible values for the plant.
The entire adjustment range is equivalent to the
maximum operating range of a PTC sensor.

r3: Switching sense of the compressor

c0: Start protection of the compressor after
"cooling on"

After cooling is switched on (e.g. by switching on the
mains voltage) the start of the compressor is
retarded until the protection running time is over.
This secures e.g. that several cooling units do not
start at the same time and load the electricity supply
net.

c1: Start protection of the compressor after
compressor start

This time protection starts when the compressor is
switched on. After switching the compressor off, a
renewed switching on is impossible until this
protection time runs out. This prevents from too
frequent switching-on of the compressor and thus
increases its life span.

c2: Start protection of the compressor after
compressor stop

This time protection starts when the compressor is
switched off. After switching the compressor off, a
renewed switching on is impossible until this
protection time runs out.

c3: Function in the case of error of refrigerating
chamber sensor F1

Here is determined whether the compressor keeps
running or not in the case of an error of the
refrigerating chamber feeler F1. When deep-
freezing, the compressor should normally continue
running, in order to prevent de-frosting of the goods.
At the normal cooling range above 0 °C, a
continuation, however, could lead to frost damages.
In the operation mode "emergency operation" the
compressor is switched on and off in 5 minute
intervals. This results in a clock operation with 50 %