ABB REX 521 - Input Switchgroups (SWGRP)

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1MRS751802-MUM

REX 521

Protection Relay

Technical Reference Manual, Standard Configurations

Fig. 4.1.1.-1 Use of input selectors

4.1.2. Input switchgroups (SWGRP)

Switchgroups are used for connecting input signals to the inputs of the function

blocks. Switchgroups allow the connection of one input signal to several function

block inputs. Refer to Fig. 4.1.3.-1 for all the signals available for each input

switchgroup. The settings can be found in

Main menu\Configuration\Input SWGRP.

Fig. 4.1.2.-1 The input signal is routed with the switchgroup to one or several

function block input(s)

Note that the symbol O/C (overcurrent) includes overcurrent function blocks I>, I>>

and I>>>. The E/F (earth fault) symbol includes all three earth fault function blocks

Io>, Io>> and Io>>>, for example the Reset 1 signal resets all the three stages.

The symbols O/C and E/F are used in the overview diagrams of the signal routings

and in the HMI menus.

DI1

DI9

Reset 1

Reset 2

Blocking 1

Blocking 2

etc.

InputSel

Selector

InputSWGRP

SWGRP

RESET OC

RESET EF

RESET Iub

Reset 1

etc.

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