38
Initial start-up
Room Controller KNX Touch One
• Status: 29.04.2014 • Errors excepted. Subject to technical changes.
•
if a failure has led to a loss of connection between the bus and the unit
•
if the power to the bus fails.
Error messages in the drive/light menu:
Those messages are displayed next to the drive or light (menu drive/light):
Position unknown...!
for a shading element or window indicates that the relevant actuator has not sent in-
formation about position.
Brightness unknown...!
for a light indicates that the relevant dimming actuator has not sent information about
brightness.
Further error messages:
Incorrect code
indicates that a false, non-existent access code was input.
3.3.
Power failure, maintenance work,
etc. (restart of control system)
The control system will be unable to control the required drive in the event of a power
failure! In the event that a full range of services must be ensured even in the event of
a mains power supply failure, an emergency power supply system with the relevant
switching from the mains to the emergency power supply must be installed.
Settings which have been saved in the control system program will remain unaffected
by any power failure.
Should cleaning or maintenance work be performed in the building, the control system
must be voltage-free by tripping the fuse fitted on site, and secured against
re-activation.This is to ensure that the switched-off drives cannot operate.
Following any re-start (such as when the power supply is
reconnected following a power failure or following a manual
reset), all drives and light controls are in automatic mode.
3.4.
Behaviour following a failure of
power supply
Failure of the auxiliary power supply:
Nothing is sent, and nothing can be received.