DOL 834 CE
Technical User Guide
35
0-10 volt output
The 0-10 V output makes it possible to run at low speeds on the
fan, and from here to run the fan steplessly up to full speed.
Low speed and Full speed
When a fan connect to a 0-10 V output has been selected, a
voltage value must be set which corresponds to the fan running
at low and full speed.
Please note that most fan types have stopped at 10 volt.
Depending on which type of fan has been selected, the voltage
is set at low speed to 4-6 volts.
For each MultiStep unit, set whether it should be activated
when the Dynamic MultiStep system runs at high speed, at low
speed or with both.
Ventilation sequence
The livestock house's ventilation system
Flap in stepless unit: The stepless ventilation sequence is
achieved by opening and closing the flap.
Fan in stepless unit: The stepless fan runs as long as possible at
low speed.
Variable ON/OFF: 0- 10 V control signal to fan in stepless ON/
OFF.
Max. output in % at low and high regulation.
Method of Operation
1 stepless unit
2 MultiStep units
From low to high regulation
Figure 7: Principle diagram of Dynamic MultiStep system.
Outputs
Low
High
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