ABB REX 521 - Output Switchgroups (SWGRP); Output Selectors

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1MRS751802-MUM
Protection Relay
Technical Reference Manual, Standard Configurations
REX 521
Fig. 4.2.1.-1 Description of function block symbols
More information concerning function blocks in this manual, refer to Chapter 7.
Function block descriptions.
4.3. Output switchgroups (SWGRP)
The outputs from the function blocks (for example start, trip and alarm signals) are
routed to the output signals by using the output switchgroups, for example Trip 2,
see Fig. 4.3.-1 below.
Fig. 4.3.-1 Output switchgroups
4.3.1. Output selectors
Output signals (for example Start 1, Trip 1) are routed to the output relays (for
example PO1, HSPO1, SO1) by using output selectors.
Time characteristics
Inputs
Protection function name
Outputs
CBFP = circuit breaker failure protection
FBsymb
3I>>>
BS1
BS2
GROUP
DOUBLE
RESET
BSOUT
START
TRIP
CBFP
CBFP
Trip
Start
Io>
I>
Iub
Trip
Start
Trip
Start
SWGRP
etc.
Start 1
Trip 2
SWGRP
Selector
Selector
Selector
Selector
Selector
etc.
PO1
PO2
PO3
SO1
SO2
OutputSWGRP