Technical
Manual
Switch
Actuators
AKI/AKS/AKK
MDT technologies GmbH •
51766 Engelskirchen • Papiermühle 1
Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de
6
2.3
Structure
&
Handling
The
switch
actuators
(here:
AKI
1216.01)
contain
of
one
status
LED
per
channel.
This
LED
indicates
the
state
of
the
depending
output.
Furthermore
every
output
can
be
switched
manual,
independent
of
the
current
parameterization.
The
lines
AKS
and
AKI
have
buttons
for
every
channel.
In
contrast
the
line
of
the
AKK
has
only
four
buttons,
independent
to
the
number
of
channels.
Two
buttons
are
for
choosing
the
channel,
whereby
the
chosen
channel
is
indicated
by
a
flashing
status
LED.
The
buttons
up
and
down
are
for
switching
the
channel
on
and
off.
The
programming
button
activates
the
programming
function.
An
activated
programing
function
is
indicated
by
a
lit
programming
LED.
Illustration
4:
Overview
hardware
module
switch
actuator
(e.g.
AKK
‐
1610.01)
The
lines
AKS
and
AKI
have
bistable
relays.
The
line
AKK
has
monostable
relays.
At
the
bistable
relays
the
current
switching
state
also
stays
in
case
of
a
breakdown
of
the
230V
auxiliary
voltage
and
at
an
update
of
the
parameterization.
The
monostable
relays
fall
back
to
their
output
state
when
the
power
breaks
down
or
the
parameterization
is
updated.