Application manual
KNX binary output modules EK-GA1-TP
Release 1.5 - Update: 02/2022
MAEKGA1TP_EN
© EKINEX S.p.A. - All rights reserved
Page 9
As soon as the bus voltage is restored, the device will resume operation in its previous, unless different
initialization settings are programmed.
The status of the device after some significant events can be defined by configuration. These events are:
Device power on, i.e. after the line power supply is applied;
Bus off, i.e. after a KNX bus failure
1
Bus on, i.e. after recovery from a KNX bus failure
Download of a new or updated configuration from ETS
Further events are associated with specific functions such as the Lock or the Forcing functions.
For each of these events, the status of the outputs can be determined from a set of values that depend on
how the output is configured; these sets of values will be listed later in the sections that describe the
corresponding functions.
6.2 Offline operation
Since the bus also acts as the power supply for the logic part of the device, a device which is not connected
to the KNX bus is effectively inoperable.
6.3 Manual operation
The manual operation works as an alternative to the output switching through bus commands (
bus-controlled
mode); this mode is intended for testing or maintenance purposes.
6.3.1
Status of the outputs across modes
When manual mode is activated, the outputs can be operated using the membrane keys on the front. When
manual mode is active, however, the telegrams from the bus still influence the physical outputs.
The manual operation of the outputs on the bus does not cause the generation of any telegram status
feedback; the LEDs associated with the outputs will continue anyway to indicate their status.
At the returning in manual mode the output status remains the one currently set.
The same considerations made for the bus commands are valid for the switching due to internal timing
functions (for example delays in the activation or staircase light function): the changes of state due to internal
functions have nonetheless effect even when the manual mode is active.
6.3.2
Activation of manual mode
To switch the device to manual operation mode, proceed as follows:
1
This parameter is left in place for future expansion; currently, a bus failure causes the device to lose power
and therefore switch off.
