ABB Relion 670 Series Applications Manual page 388

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Table of Contents

(manually reset

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Values (Range)

If the input TCINPROG of TCMYLTC or TCLYLTC (84)

function block is connected to the tap changer

Auto&Man Block

mechanism, then this blocking condition will be active

if the TCINPROG input has not reset when the

tTCTimeout timer has timed out. The output TCERRAL

will be activated depending on the actual parameter

setting. In correct operation the TCINPROG shall

appear during the VRAISE/VLOWER output pulse and

disappear before the

This error condition can be reset by the input

RESETERR on TCMYLTC (84) function block, or

alternatively by changing control mode of TR1ATCC

(90) or TR8ATCC (90) function to Manual and then

back to Automatic.

tTCTimeout time has elapsed.

1MRK 511 401-UUS F

Bay control REC670

Application manual