Lauda VC 1200, Руководство по эксплуатации

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3. Press the input button to confirm.

Selection of the menu item Tv manual/auto activates manual
or automatic adjustment of the parameters depending on the
previous setting. An entry window is displayed if the other menu
items are selected. The respective value can be adjusted within
the displayed limits.
4. Change the value accordingly.
5. Press the input button to confirm.
6.11.5 Overview of external control parameters
n
External control consists of a master controller (external controller) and
a slave controller (internal controller). The temperature of the consumer
to be temperature controlled is also required. In general this is deter-
mined with an external “Pt100 sensor”.
n
The master controller compares the set temperature with the external
temperature (consumer temperature) and, from these temperatures,
calculates the set temperature (set_internal) for the slave controller
(internal controller).
n
The slave controller compares the set temperature (set_internal) with
the outflow temperature and calculates the actuating signal, i.e. the
measurement used for heating or cooling.
Table 7: The following control parameters can be adapted on the master
controller (external controller):
Characteristics Designation Unit
Kpe Amplification factor -
Tne Adjustment time s
Tve Hold-back time s
Tde Attenuation time s
Prop_E Proportional range K
Table 8: The following control parameters can be adapted on the slave
controller (internal controller):
Characteristics Designation Unit
Xpf Proportional range K
If Tv manual/auto is set to auto, Tv and Tde cannot be modified. In
this case, they are derived with fixed factors of Tne.
Fig. 38: Specifying internal control param-
eters
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