6.11.3 Overview of internal control parameters
The internal control compares the set temperature with the outflow tem-
perature and calculates the actuating signal, i.e. the measurement used for
heating or cooling.
Table 6: The following control parameters can be adapted for internal con-
trol:
Characteristics Designation Unit
Xp Proportional range K
Tn Adjustment time s
Tv Hold-back time s
Td Attenuation time s
If Tv manual/auto is set to auto , Tv and Td cannot be modified. In
this case, they are derived with fixed factors of Tn.
The temperature limits Tih and Til also have an eect on the
control.
6.11.4 Adapting internal control parameters
Personnel:
n
Operating personnel
1.
Select the menu item Control parameter intern Pt1000 in the
Control menu.
2. Select one of the following options:
n You can select one of the listed control parameters.
n Tv manual/auto
allows you to specify whether the control param-
eters Tv and Td are set manually or automatically. If the auto-
matic setting is active, the two control parameters are displayed
with a padlock and cannot be selected. In this case, they are
derived with fixed factors from Tn .
Fig. 37: Internal control parameter menu
V08Variocool50 / 97
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