Logical Selectivity - ABB SACE Tmax XT2 User Manual

23 - Logical Selectivity

Logical Zone Selectivity via Link Bus is referred to as Logical Selectivity.
Selectivity - Logical Selectivity can be implemented for a maximum of 12 of the 15 actors that can be
presentation associated with Ekip Touch via Link Bus (see Ekip Link module, page 151).
Parameters
For each protection whose zone selectivity is to be activated, the parameter to enable the function
available between the parameters that can be set for the protection must be set.
Then, in addition to these parameters, the Selectivity time is also activated for the setting.
Zone Selectivity can only be set through the Ekip Connect software.
Some parameters can be configured on the Ekip Link Configuration page:
Logical
Selectivity -
Setting
On the Ekip Link advanced selectivity page, selectivity masks are available for each actor. The
mask allows selecting the actors' protections (S, G, D-Forward, D-Backward, S2) that activate
the Ekip Touch selectivity input (e.g. actor 1, protection mask S = S2: the Ekip Touch S selectivity
will be active in the presence of actor 1's S2 signals).
In this configuration, if the function is enabled for S protection and it is in an alarm state, the
hardware block signal S/D-Forward and the S logical selectivity bit are activated at the
output. Based on the block signals:


Selectivity masks
Selectivity masks include the Remote Programmable States A and B: these two parameters,
available on the Ekip Link Configuration page allow selecting the event (or the combination of
multiple events) and the actor of reference that activates the selectivity input.
There are 2 additional states – C and D – but they are not configurable for Zone Selectivity. All 4
programmable states are used for the Programmable Logic function (see Ekip Link module, page
151).
1SDH002031A1002 ECN000092998
NOTE: all the parameters and configurations that follow are available with Ekip
Connect with the Ekip Link module connected and switched on
- Selectivity type selection: hardware or mixed (hardware and logical)
- Entry of the IP address of each actor present. Entry enables the display of the
configuration parameters and the status indicators on the various pages
- For each actor associated with Ekip Touch via Link Bus and for which the logical
selectivity must be implemented, the function must be enabled (the Selectivity Actor
parameter must be set to True)
If the S/D-Forward hardware block signal and the S2 logical selectivity bits of actor 1 are
not active at the input, the opening command is sent according to the selectivity time set for
the S protection
If the S/D-Forward hardware block signal is active at the input or the mixed selectivity is
selected and the S2 logical selectivity bits of actor 1 are active, a time equal to the S tripping
time is initiated (and the opening command is sent only if the S protection is still in alarm
after this time)
NOTES:

The output and input logical selectivity bits are those in the data packets shared by
the releases via Link Bus

The S/D-Forward hardware output (G/D-Backward) is activated only if the S or D-
Forward protections (G or D-Backward) are active, and the S/D-Forward hardware
input (G/D-Backward) acts as a block only for the S and D-Forward protections (G
and D-Backward), regardless of whether only hardware or mixed selectivity is
selected
IMPORTANT: if only hardware selectivity is selected, the logical selectivity bits
are ignored at the input, but they are activated at the output
NOTE: the Programmable Logic function is independent from the Zone Selectivity
function
Rev. B
SACE Tmax XT2 – XT4 | 76