SAUTER
flexotron®400 - RDT405
Control modes
P100012100
15
5.3
Control mode 3, General control 0…100%
Humidity control has been selected as an example:
The control mode consists of a general control in sequence. A neutral zone can
be set between AO1 and AO2.
The sensor must have an output signal of 0...10 V DC.
This control mode can be used for humidity control. If so, the following sensors
are recommended:
EGH
Room humidity transmitters
EGH
Duct transmitters
DI1, Start signal
Normal control will only be activated when this input is activated, closed. When
the start signal is deactivated the controller will set the outputs to 0.
Maximum
Limiting, RH Max
When running humidification with the main sensor in the room it is sometimes
desirable to have some sort of maximum limiting on the humidity in the supply
duct.
To create such a limiting function, place an on/off humidistat such as HSC in the
supply air duct and wire it into the start signal circuit on DI1. The humidistat
should be normally closed.
Opening of the contact when the humidity rises above the set maximum value
will force the humidity output to 0.
Wiring example: Combined humidification / dehumidification
