gefran ADV200 Instructions D'utilisation page 154

PI regulator for closed circuit systems
The PI regulator can be used with closed circuit cooling systems.
The basic diagram is shown in the figure below.
For more information about closed circuit cooling systems, refer to "Appendix 2 - Liquid cooling" of the Quick start-up
guide (ADV200-LC QS).
The PI regulator allows for the correct water temperature of the secondary circuit to be defined in accordance with the
dew point.
It also enables start/stop control of the secondary circuit's liquid circulation pump.
Starting from the measurement of the cooling water temperature, temperature and room humidity, the drive calculates
the "Dew Point" condensation point.
The PI regulator set is defined in accordance with this value plus a programmable offset. The setting of a minimum
value also avoids the circulation of water at unnecessarily low temperature.
154
ADV200
Liquid cool
Pump
Secondary circuit
Temp. Max
40°C
Expansion
tank
Water/water
exchanger
Proportional
0...10V
ADV200 • Description des fonctions et liste des paramètres
Water Temp.
5 ... 35°C
Primary circuit
Valve