Error Codes And Device Led Feedback; Flash Codes; Operational Status Display; Duty Cycle - eQ-3 HomeMatic HM-LC-Sw1-Pl-DN-R5 Bedienungsanleitung

Error codes and device LED feedback

8 Error codes and device LED feedback
8.1

Flash codes

Various actuator states are indicated by the device LED (B):
Flashing sequence Meaning
Slow flashing Teach-in mode
activated or stage
before restoring the
factory settings
Fast flashing The factory settings
of the device will be
restored.
1 x long, 1 x short Transmit limit (duty
flashing cycle) reached
1 x long, 2 x short Device defective
flashing
8.2

Operational status display

The device LED (B) lights up permanently as soon as the switch actua-
tor is switched on.
After configuring the switch actuator with the Central Control Unit or
a programming tool, the device LED indicates other device states be-
sides those described (e.g. switch on and off delay or duration).
8.3

Duty cycle

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 transmission
time of any device is 1% of an hour (i.e. 36 seconds in an hour). De-
vices must cease transmission when they reach the 1% limit until this
time restriction comes to an end. HomeMatic devices are designed and
32
Solution
/
/
please see sec. „8.3 Duty
cycle" on page 32
Please contact your
specialist dealer.
produced with 100% conformity to this regulation.
During normal operation, the duty cycle is not usually reached. How-
ever, repeated and wireless-intensive teach-in processes mean that it
may be reached in isolated instances during start-up or initial installa-
tion of a system. If the duty cycle is exceeded, this is indicated by one
long and one short red flash of the device LED, and may manifest itself
in the device temporarily working incorrectly. The device starts working
correctly again after a short period (max. 1 hour).
9

Behaviour after power recovery

After the device has been inserted to a socket or after power recovery the
switch actuator performs a self-test/restart. The device LED will flash if an
error is detected during this check (see sec. „8.1 Flash codes" on page
32). This is repeated continuously and the device does not perform its
function.
If the test is completed without errors, the switch actuator transmits a
wireless telegram containing its status information. To prevent all Home-
Matic actuators from transmitting at the same time when power is recov-
ered (after a mains power failure or a disconnection, for example), there
is a random delay before the switch actuator transmits. During this time,
the device LED flashes slowly. If the delay is very short, this flashing may
be almost imperceptible.
10

Maintenance and cleaning

The product does not require any maintenance. Enlist the help of an
expert to carry out any repairs. Clean the product using a soft, lint-free
cloth that is clean and dry. You may dampen the cloth a little with luke-
warm water in order to remove more stubborn marks. Do not use any
detergents containing solvents, as they could corrode the plastic hous-
ing and label.
Behaviour after power recovery
33