5
1.3. System
overview
1.3.1.
System structure
The control system is divided into two subgroups:
1. One part that is located in the ventilation unit's switching space
2. One part that is located in a separate control cabinet on the outside of the ventilation unit.
1.
Terminal blocks
for incoming feed Fuse for
automatic control and fans (not electric
heating coil)
Modbus extender -
a communication card that
connects the ventilation unit's components to
the control unit via data communication
Power supply board -
a circuit board that
distributes the power supply to the ventilation
unit's components and makes it possible to
connect components to a water heating coil
2.
Control unit -
the overall control system of the
ventilation unit
Terminal board -
a circuit board with terminal
blocks for connection of additional components
and accessories
HMI -
the control panel used to communicate
with the control unit
