52
Errors and information indicated by the device LED
fully transmitted in between, nothing more will be trans-
mitted during subsequent window detections. The LED
will only flash red for 0.5 seconds.
6.2
Command not confirmed
If a receiver (at least one in cases where multiple devic-
es have been taught-in) does not confirm a command,
the device LED lights up red at the end of the failed
transmission process. The error must be solved by the
receiver and may be caused by the following:
•
Receiver cannot be reached
•
Receiver is unable to execute the command (load
failure, mechanical blockade, etc.).
•
Receiver defective
6.3 Duty cycle exceeded
The duty cycle is a legally regulated limit of the trans-
mission time of devices in the 868 MHz range. The aim
of this regulation is to safeguard the operation of all de-
vices working in the 868 MHz range.
In the 868 MHz frequency range we use, the maximum
transmission 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.