ABB Relion 670 Series Technical Reference Manual page 880

Line differential protection ansi

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OR Output signals

AND function block AND

The AND function is used to form general combinatory expressions with boolean

variables. The AND function block has four inputs and two outputs. One of the outputs

are inverted.

IEC04000406_2_en.vsd

IEC04000406 V2 EN

AND function block

AND Input signals

AND Output signals

Timer function block TIMER

The function block TIMER has drop-out and pick-up delayed outputs related to the

input signal. The timer has a settable time delay (T).

Output from OR gate

Inverted output from OR gate

Input 4 inverted

Output inverted

1MRK505222-UUS C

Technical reference manual

Relion red670