ABB Relion 670 Series Technical Reference Manual page 30

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Introduction

Block TUV=Yes

IEC04000375 V1 EN

Logic diagram example with -int signals

Setting parameters

Signals in frames with a shaded area on their right hand side represent setting

parameter signals. These parameters can only be set via the PST or LHMI. Their

values are high (1) only when the corresponding setting parameter is set to the

symbolic value specified within the frame. Example is the signal Block TUV=Yes.

Their logical values correspond automatically to the selected setting value.

Internal signals

Internal signals are illustrated graphically and end approximately 2 mm from the

frame edge. If an internal signal path cannot be drawn with a continuous line, the

suffix -int is added to the signal name to indicate where the signal starts and

continues, see figure 1.

External signals

Signal paths that extend beyond the logic diagram and continue in another diagram

have the suffix "-cont.", see figure

and figure 3.

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