ABB REX 521 Technical Reference Manual, Standard Configurations page 22

Digital
Input SWGRP's
Input signals
inputs
SWGRP
O/C
Reset 1
Selector
E/F
Iub>
3Ith>
PQ 3Inf
O-->I
Reset 2
Terminal
connection
O/C
E/F
X4.2.5/6 DI1 Group
Iub>
X4.2.6/7 DI2
3Ith>
X4.2.8/9 DI3
Blocking 1
X4.2.9/10 DI4
X4.2.11/12 DI5
BS2 3I>
X4.2.13/14 DI6
BS2 3I>>
X4.2.15/16 DI7
BS2 3I>>>
Blocking 2
X4.2.17/18 DI8
BS2 Io>
X3.1.1/2 DI9
BS2 Io>>
BS2 Io>>>
BS2 Iub>
BS 3Ith>
DREC trig
PQ 3Inf trig
O-->I INH
O-->I ON
O-->I
O-->I Ext. start AR1
AR2
O-->I Ext. trip
AR3
*)
AR4
Master trip
Master trip
External trip
External trip
Lockout reset
Lockout reset
Remote
Close enable
Open
Close
CBO
CB pos. open
CB pos. close
DC1
DC pos. open
DC2
DC pos. close
ES1
ES pos. open
ES2
ES pos. close
Logic input 1
Logic input 2
Logic input 3
Lockout Working
*) NOTE! The trip and start signals from the protection function blocks
are routed directly to the auto-recloser (0->1) via the input switchgroups
of the auto-recloser and are not shown in the diagram.
Function blocks
3I>
AR1
AR2
CBFP
AR3
BS1
O/C
AR4
BS2 START
E/F
ARINH
GROUP TRIP
Iub>
CBOPEN
RESET CBFP
3Ith>
CBCLOSE
PQ 3Inf
3I>>
ON
O-->I
RESET
CBFP
BS1
BS2 BSOUT
GROUP START
BS1 3I>
DOUBLE TRIP
BS1 3I>>
RESET CBFP
BS1 3I>>>
BS1 Io>
3I>>>
BS1 Io>>
BS1 Io>>>
CBFP
BS1 Iub>
BS1
BSOUT
BS2
GROUP START
DOUBLE TRIP
BINOPEN
RESET CBFP
BINCLOSE
Io>
BINOPEN
CBFP BINCLOSE
BS1
BS2 START
GROUP TRIP
BINREMOTE
CBFP
RESET
Io>>
Io
CBFP
BS1
IL1
START
BS2
IL2
TRIP
GROUP
IL3
RESET CBFP
Io>>>
IL1
IL2
CBFP
I<->O CB1
IL3
BS1
Io
BS2 START
Uo
GROUP TRIP
SWGRP
BI1
RESET CBFP
CBO TCS BS
BI2
3I2f>
BI3
3I /I > BI4
2f 1f
BI5
3dI/dt>
BI6
GROUP START
BI7
DC1
I<->O IND1
Iub>
BI8
BI9
3∆I>
DC2 BI10
BI11
CBFP
BI12
BS1
BI13
ES1
I<->O IND2 BS2 START
BI14
TRIP
GROUP
BI15
CBFP
RESET
BI16
ES2
3Ith> EXT_TRG
3
ϑ>
Cab OPEN
CBFP BINOPEN
BLOCK (BS)
BINCLOSE
Interlocking
START
scheme GROUP
TRIP
RESET
CLOSEENA
CBFP
I<->O CB1
Interlocking_A
TCSSTATE
& CU_ALARM
Interlocking_B
BS
Interlocking_C
I<−>Ο CB1
Interlocking_D
OOPEN
Interlocking_E
OPEN OCLOSE
OPENENA AOPEN
CLOSE ACLOSE
CLOSEENA
TRIGG
BINOPEN
RESET
BINCLOSE
BINOPEN
BINCLOSE
3I>>
3I>>>
Output SWGRP's Output signals
3I>
3I>>
Master Trip
3I>>>
Trip 1
Io>
O−−>I
Io>>
DEFTRIP
Io>>>
LOCKOUT
Iub>
3I>
ROPEN
3Ith>
3I>>
RCLOSE
3I>>>
SHOT1
Trip 2
Io>
SHOT2
Io>>
SHOT3
Io>>>
SHOT4
Iub>
3I>
SHOT5
3Ith>
3I>>
AR1TRIP
3I>>> Trip 3
AR2TRIP
Io>
AR3TRIP
Io>>
AR4TRIP
Io>>>
CB FAIL
Iub>
DEFTRIP
3Ith>
LOCKOUT
TRDUE
TDDUE
External trip
ACTIVE
SHOT_ALARM
3I>
3I>>
I<->O IND1
3I>>>
CBFP
Io>
Io>>
I<−>O IND2 Io>>>
Iub>
3Ith>
I<->O POS
RCLOSE
Close
≥1
CLOSE
Io
3I>
3I>>
3I>>>
3I Start 1
Io>
Io>>
Io>>>
3I>
Iub>
3I>>
3Ith>
3I>>>
Start 2
Io>
DREC
Io>>
Io>>>
Iub> Lockout
3Ith>
Start 3I> BSOUT
3I>>
Start 3I>>
3I>>>
Start 3I>>>
Start Io>
I<->0 CB1 open
Start Io>>
I<->0 CB1 close
Start Io>>>
3Ith>
Alarm 1
Start 3Iub>
3I MCS
Start 3Ith>
TCS
Trip 3I> PQ 3Inf har
Trip 3I>> PQ 3Inf cum
Trip 3I>>> CB wear
I<->0 CB1 open
Trip Io>
I<->0 CB1 close
Trip Io>>
3Ith>
Trip Io>>>
Alarm 2
3I MCS
Trip 3Iub>
TCS
Trip 3Ith>
PQ 3Inf har
PQ 3Inf cum
SHOT1
CB wear
SHOT2
CB wear
SHOT3
ALARM
SHOT4
SHOT5 O-->I Active
TRDUE
TDDUE
TCS1
ACTIVE
ALARM
AR1TRIP
AR2TRIP
MCS 3I
AR3TRIP
O-->I Alarm 1
ALARM
AR4TRIP
CBFAIL
DEFTRIP
PQ 3Inf
LOCKOUT
HAR_HIGH
SHOT_ALARM
CUM_HIGH
AR1TRIP
AR2TRIP
I<−>O IND1
AR3TRIP
AR4TRIP
CBFAIL
Double
DEFTRIP
O-->I Alarm 2
LOCKOUT
SHOT_ALARM
Output relays
Ropen
Open HSPO1
(X4.2.3/4/1/2)
≥1 ≥1
Lockout
S
HSPO1
Q
R Lockout Working
Lockout reset
1
Lockout
PO1 (X4.1.12/13)
PO2 (X4.1.14/15)
PO3 (X4.1.17/18)
SO1 (X4.1.8/7/6)
SO2 (X4.1.10/11/9)