SAUTER
flexotron®400 - RDT405
Configuration
P100012100
22
will first close to the set minimum value before the heating output on AO1 starts
to increase.
In alternative 7, Cooling-Damper, at temperatures below the setpoint the damper
on AO2 will be fully open. On increasing cooling demand, the damper on AO2
will first close to the set minimum value before the cooling output on AO1 starts
to increase.
For each output 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 2500 kPa can be set. Also, not all values
between 0 and 2500 kPa kan be set since this would involve a great amount of
twisting on the encoder. In the low ranges the values are close together, but their
distance progressively increase in size as they go up.
For CO
2
transmitters the range is set in ppm and for the general sensor in %.
Example, Menu 2.1
CO2-control w
ith input signal 0…10 V
for CO2 value 0…2000 ppm.
8.1.2
Menus X.2
Neutral zone (Control mode 1 and 3)
In two control modes involving diverging output signals (heating
– cooling or
general control) you can set a neutral zone between the outputs. The setpoint will
be placed at the middle of the neutral zone.
Control mode 1 menu 1
Output alternativ e 3, Heating/Cooling
AO1 Heating
AO2 Cooling
Output signals, graphical
