ABB Relion 670 Series Technical Reference Manual page 874

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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.

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:

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).

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

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

1MRK505222-UUS C

Technical reference manual

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