Configuration - ABB REU 523 Technical Reference Manual

Combined overvoltage and undervoltage relay

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1MRS 750942-MUM

4.1.3.

Combined Overvoltage and Undervoltage Relay

Technical Reference Manual

Configuration

The figure below illustrates how the start, trip and binary input signals can be

configured to obtain the required protection functionality.

OUTP. CONT. UNLATCHED

AND INDICATIONS CLEARED

MEMORIZED VALUES AND

INDIC.CLEARED; OUTPUT

CONTACTS UNLATCHED

SWITCHGROUP SELECTION

)LJ

6LJQDO GLDJUDP

The functions of the blocking and start signals are selected with the switches of

switchgroups SGF, SGB and SGR. The checksums of the switchgroups are found

under "SETTINGS" in the HMI menu. The functions of these switches are explained

in detail in the corresponding SG_ -tables.

REU 523

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