14.2.1
Introduction
Trip matrix logic TMAGGIO function is used to route trip signals and other logical
output signals to different output contacts on the IED.
TMAGGIO output signals and the physical outputs allows the user to adapt the signals
to the physical tripping outputs according to the specific application needs.
14.2.2
Principle of operation
Trip matrix logic (TMAGGIO) block is provided with 32 input signals and 3 output
signals. The function block incorporates internal logic OR gates in order to provide the
necessary grouping of connected input signals (for example, for tripping and alarming
purposes) to the three output signals from the function block.
Internal built-in OR logic is made in accordance with the following three rules:
1. when any one of first 16 inputs signals (INPUT1 to INPUT16) has logical value 1
(TRUE) the first output signal (OUTPUT1) will get logical value 1 (TRUE).
2. when any one of second 16 inputs signals (INPUT17 to INPUT32) has logical
value 1 (TRUE) the second output signal (OUTPUT2) will get logical value 1
(TRUE).
3. when any one of all 32 input signals (INPUT1 to INPUT32) has logical value 1
(TRUE) the third output signal (OUTPUT3) will get logical value 1 (TRUE).
By use of the settings
ModeOutput1
,
ModeOutput2
,
ModeOutput3
,
PulseTime
,
OnDelay
and
OffDelay
the behavior of each output can be customized. The
OnDelay
is
always active and will delay the input to output transition by the set time. The
ModeOutput
for respective output decides whether the output shall be steady with an
drop-off delay as set by
OffDelay
or if it shall give a pulse with duration set by
PulseTime
. Note that for pulsed operation since the inputs are connected in an OR-
function a new pulse will only be given on the output if all related inputs are reset and
then one is activated again. And for steady operation the
OffDelay
will start when all
related inputs have reset. Detailed logical diagram is shown in figure
Section 14
1MRK505222-UUS C
Logic
868
Technical reference manual
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