Handbook Ucontrol type-lines PXDM Date 06/04
TBL02_55-GB06/04 Part.-No. 00153239-GB
Page 46 / 105
8.4.3 Settings for operation modes 3.01 .. 3.04
For the following modes of operation:
Setpoint 1
Setting in measurning range of pressure sensor, for Ziehl-Abegg sensor
type DSF2-25 from 2-25 bar
for mode input for refrigerant Setpoint in °C
Setpoint 2
„Setpoint 2“ (factory setting OFF)
e.g. reduced value for night operation. Switch over by digital input .
(As long as no allocation has been carried out: Display: - - - - -
F IO Setup).
Pband (Control range)
The control response can be adjusted to the system conditions
- small control range
= greater amplification and shorter control times
- big control range = longer control times and higher controller stability
factory setting 5 bar (Setting in measurning range of pressure sensor)
for mode input for refrigerant Setpoint in K
Min. Speed „n-min“ (minimum output voltage )
If required setting of a minimum output voltage e. g. basic speed (minimum airflow rate) of
connected fans.
Setting range: 0 % → 20 % up to 100 % (or Max. speed).
Max. Speed „n-max“ (maximum output voltage)
If required setting of a maximum output voltage, e. g. speed limiter.
Setting range: 100 % up to „Max speed“.
Manual mode
OFF = automatic control as function of the set parameters
ON = automatic control without function, speed setting in menu “Speed manual“
Speed manual
Manual speed setting without influence by the external signal
Activation by menu „Manual mode“ or external contact at digital input (F IO Setup).
For information about deactivated regulation the adjusted value for manual speed
is indicated alternating with the actual value
3.01 Pressure control condensers, Setpoint in bar
3.02 Pressure control for condensers with input for refrigerant, Setpoint in °C
3.03 t w o sensors for dual circuit condenser, automatic regulation to the highest pressure (selection amplifier integrated)
operation display: „Control value“, Setpoint in bar
3.04 t w o sensors for dual circuit condenser with input for refrigerant automatic regulation to the highest pressure
(selection amplifier) - Setpoint in °C , also for different refrigerants suitably there comparison of the temperatures.
Display during operation: „Control value“
↓P ↑ ESC
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