Control Parameters; Internal Control Variable (Internal Temperature Sensor) - Lauda E 4 G Operating Instructions Manual

7.9

Control parameters

The control parameters have been optimised at the factory for operation as a bath thermostat (with
water as the heat transfer liquid) with internal control. The standard parameters are set as default also
for the temperature stabilisation of external applications with external control. Depending on the appli-
cation, the configuration can be adapted from case to case as required. Also the thermal capacity and
the viscosity of the heat transfer liquid affect the control behaviour.
7.9.1

Internal control variable (internal temperature sensor)

Only change the control parameters if you have appropriate knowledge of control tech-
niques.
If you have not connected any temperature sensor (and activated it as in section 7.7.1 as a control vari-
able), continue reading here.
For activated external control please read (
The control compares the setpoint temperature with the current bath temperature and computes the set
value, i.e. the measure used for heating or cooling.
These control parameters can be set:
If Tv manual/auto
and Td cannot be changed. They are in this
case derived from
Additionally, the parameter Temperature Limits Tih, Til (
58
is set to "automatic", Tv
Tn with fixed factors.
Putting the device into operation
7.9.2).
Description
Proportional range
Reset time
Derivative time
Damping
7.5.1) can also influence the control.
ECO GOLD
Short form Unit
Xp K
Tn s
Tv s
Td s
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