Lauda IN 1030 T, Руководство по эксплуатации

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5.8.3 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 33: 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 34: 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.
The temperature limits Tih and Til also have an effect on the
control.
If a temperature jump is specified via set temperature T
set
, the control may
set an outflow temperature which is considerably higher (e.g. 50 K, possible
problem with enamel reactors) than the temperature T
ext
required in the
external application. Therefore, there is a correction limitation that specifies
the maximum permitted deviation between the temperature at the outflow
T
int
and the temperature in the external consumer T
ext
.
1. Press the [Enter key] to open the menu.
2.
Select the menu items

Setup

Control

Correction limit. .

An entry window opens for the numerical value.
Correction limitation
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