20
For each alternative the number representing it is shown along with a graphic symbolisation
of the output signals and also a symbol next to the bar-graph for each output.
Example, Menu 1.1
Temperature control with
output alternative 3
Heating/Cooling
Control modes 2, 3 4 and 5
For control modes using active 0…10 V DC transmitters you need to scale the input signal.
For example, if you have a pressure transmitter that will give a 0…10 V output for a pressure
range of 0 to 5000 Pa, set the value to 5000 Pa. Note that for pressure transmitters the
pressure, depending on the range, may be given in Pa or kPa. Ranges up to 500 kPa can be
set. Also, not all values between 0 and 500 kPa kan be set since this would involve a great
amount of twisting on the encoder. In the low ranges the values are close but become
increasingly further between as the values go up.
For CO
2
transmitters the range is set in ppm and for humidity control in % RH.
Example, Menu 2.1
CO2-control with input signal 0…10 V for
CO2 value 0…2000 ppm.
Menus X.2 Neutral zone (Control mode 1 and 3)
In two control modes involving diverging output signals (heating – cooling or humidification
– dehumidification) you can set a neutral zone between the outputs. The setpoint will be
placed at the middle of the neutral zone.
Menus X.3 P-band
Here you set the P-band (Proportional band) The P-band unit depends on the choice of
control mode. The P-band is the control offset necessary to drive an output signal from 0 to
100%. In configurations involving two outputs the same P-band applies to both outputs.
Control mode 1 menu 1
Output alternative 3, Heating/Cooling
AO1 Heating
AO2 Cooling
Output signals, graphical
