Lauda IN 530 T User Manual

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 eect 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
V6 Integral Process Thermostats and High-Temperature Thermostats 83 / 198

Lauda IN 530 T Specifications

General

Brand	Lauda
Model	IN 530 T
Category	Thermostat
Language	English