Assortment / System Description

Blinds applications
Operating strategy for blinds
23
A6V10866237_en--_b_08 237 | 275
23.2 Operating strategy for blinds
Desigo room automation has various room operating modes available to
efficiently control shading. The system can efficiently control the room
depending on the selected room operating mode. This generally occurs during
periods of absence, at night, during holidays, when spaces are not occupied.
Optimum room shading must satisfy both energy and comfort-related demands.
The following factors are considered:
● Presence in the room
● Brightness value (glare, use of daylight).
● Global radiation (energy entry in room).
● Solar radiation angle on facade (basis for optimum slat angle and/or blind
height).
● Heating and cooling demand of room.
See description Central Functions.
Four different room operating modes are available that can execute control, via
central functions, management stations, schedulers, presence buttons in the
room or other BACnet participants in the system.
Comfort: The operating mode Comfort refers to a room currently in use
(occupied).
Pre-Comfort: The Pre-Comfort operating mode places control for an
unoccupied room in a state that can be quickly reset to the desired setpoints
for an occupied room.
Economy: The Economy operating mode controls rooms that remain
unoccupied for an extended period, for example, at night or over the weekend.
Protection: The building is unoccupied over longer periods in this operating
mode (e.g. no renters, factory holidays).
Description Name Default value
Operating strategy for Comfort
1:Energy efficiency
2:Anti-glare protection
3:Up
4:Down
5:Presence-dependent
OpStrgyCmf 2:Anti-glare
protection
Operating strategy for Pre-Comfort OpStrgyPcf 2:Anti-glare
protection
Operating strategy for Economy OpStrgyEco 1:Energy
efficiency
Operating strategy for protection OpStrgyPrt 4:Down
Shading automation includes the functions anti-glare protection, solar position
tracking of slats, annual shading, and energy efficiency functions. Curtains are
commanded to height and angle via shading automatic functions. All automatic
functions are controlled with Desigo room automation by central functions.
See description Central Functions.
Manual, local operation always overrides automatic. The local, manual
commands can also be reset, and automatic functions reactivated. It can occur
using a time-controlled reset command from the central functions. A presence
detector can also reset blinds to automatic after exiting the room.
Room operating modes
Shading automation