13
Disable function for: Disable object = 1; Value of disable object after bus
voltage recovery: 0; Reaction at blocking: no change; Reaction at activa-
tion: follows switch object
Communication objects
The following communication objects can be selected:
Per channel:
Function
Object name
Type
Prio
Flags
Behaviour
Channel X
Switch object
1 bit
Low
CW
Receive
Channel X
Disable object
1 bit
Low
CW
Receive
Parameters
Per channel: Switch on the disable function.
Channel X: General
Parameter
Setting
Disable function
switched off
switched on
Per channel: Set the disable function.
Channel X: Disable
Parameter
Setting
Disable function for
Disable object = 0
Disable object = 1
Value of disable object after bus
voltage recovery
1
0
Reaction at blocking
no change
changes state
actuated
not actuated
flashes
Reaction at activation
no change
follows switch object
actuated
not actuated
Reaction at activation (with active
staircase lighting function)
follows switch object
not actuated
t
1
0
t=0
KNX
telegram,
disable object
ON
OFF
t
1
0
KNX
telegram,
switch object
1
0
1
0
t
t
1
disabled
Status
actuated
not actuated
Higher-level functions
With regard to the switching behaviour of the actuator, the
higher priority functions take precedence over the switch-
ing function, staircase lighting function and time delays. If
a higher priority function is active, changes to the switch
object no longer affect the relay output. The status of the
relay remains in the position which was preselected by the
higher priority function. Higher priority functions are car-
ried out without a delay i.e. delay periods are not taken into
account when switched to a higher priority state.
There are three higher priority functions available: the
disable function, logic operations and the priority control
function. Logic operations and priority control functions
cancel each other out i.e. only one of the two functions can
be used per channel.
The logic operation or priority control function has a lower
priority than the disable function. If a logic operation and
the disable function occur at the same time, the disable
function takes priority. Each channel has an object for each
higher priority function (logic, priority or disable object).
All three functions are activated by means of parameters.
L
L
When switching between the functions, the param-
eter settings and communication objects of these
functions are modified by the ETS program. Linked
group addresses are deleted. For this reason, the
function should be defined first.
- Disable function
The functionality of the selected switch actuator channel
can be deactivated with the help of the “Disable object”.
Telegrams via the “Switch object” or status changes from
the logic/priority function are no longer converted into
switching commands at the relay when the disable func-
tion is activated.
The disable function can be triggered by a “1” or by a “0”
telegram. (Disable object = 1 or disable object = 0).
Using the parameter “Value of disable object after bus volt-
age recovery”, you can define whether the disable function
is only effective after receipt of a disable telegram via the
“Disable object” or immediately after a RESET.
With the parameter “Reaction at blocking”, the output is set
to the required position for the disable function.
Telegrams to the “Switch object” are received and the last
telegram is saved each time. When the disable function is
no longer active, it is possible to define the relay state with
the parameter setting “Reaction at activation”.
