Duty Cycle Limit Reached - HomeMatic CCU2 HM-Cen-O-TW-2 Series Installation And Operating Manual

Notes on rectifying malfunctions
the Central Control Unit again. The full range of functions will then
be available for your Central Control Unit.
You can reset your Central Control Unit to the factory
settings using the "Factory reset" button. This will
delete all configurations, settings and programming.
You can reset just the network settings to the factory
settings of the Central Control Unit using the
"Reset network settings" button.

11.3 Duty cycle limit reached

The duty cycle is a legally regulated limit of the transmission time of
devices in the 868 MHz range. The aim of this regulation is to safe-
guard the operation of all devices working in the 868 MHz range.
In the 868 MHz frequency range we use, the maximum transmissi-
on time of any device is 1% of an hour (i.e. 36 seconds in an hour).
Devices must cease transmission when they reach the 1% limit
until this time restriction comes to an end. Homematic devices are
designed and produced with 100% conformity to this regulation.
During normal operation, the duty cycle is not usually fully used up.
However, repeated and wireless-intensive teach-in processes mean
that it may be reached in isolated instances during start-up or initial
installation of a system. If the duty cycle limit is exceeded, this is
indicated by your Homematic device LEDs flashing, and may
manifest itself in the device temporarily working incorrectly. The
device will start working correctly again after a short period
(max. 1 hour).
48