ABB REX 521 Technical Reference Manual, Standard Configurations page 28

Digital
Input signals Input SWGRP's
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
Io>-->
BACTRL
Io>>-->
Io>>>-->
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
O/C CBFP
BS1 AR3
E/F
BS2 START AR4
Iub>
GROUP TRIP ARINH
3Ith>
CBOPEN
RESET CBFP
PQ 3Inf
CBCLOSE
O-->I
3I>>
ON
RESET
CBFP
BS1
BS2 BSOUT
BS1 3I>
GROUP START
BS1 3I>>
DOUBLE TRIP
BS1 3I>>>
RESET CBFP
BS1 Io>-->
BS1 Io>>-->
3I>>>
BS1 Io>>>-->
BS1 Iub>
CBFP
BS1
BS2 BSOUT
GROUP START
DOUBLE TRIP
RESET CBFP
Io>
OPEN
CLOSE
CLOSEENA
CBFP
BACTRL BINOPEN
START
BS1 BINCLOSE
BS2 TRIP
GROUP CBFP
BINOPEN
RESET
BINCLOSE
Io>>
BINOPEN
BINCLOSE
CBFP
BACTRL START
BS1 TRIP
BS2 CBFP BINREMOTE
GROUP
RESET
Io
I<->O CB1
Io>>>
SWGRP
IL1
TCS BS IL2
CBO
CBFP
IL3
BACTRL START
BS1 TRIP
BS2
CBFP Uo
GROUP
DC1
RESET
I<->O IND1
IL1
3I2f>
IL2
DC2 3I /I >
2f 1f IL3
3dI/dt>
Io
GROUP START
Iob
ES1
I<->O IND2
Uo
Iub>
BI1
BI2
3∆I>
ES2
BI3
BI4
CBFP
BS1 BI5
BI6
BS2 START
TRIP BI7
GROUP
CBFP BI8
RESET
Interlocking BI9
3Ith>
scheme
BI10
3 BI11
CLOSEENA
I<->O CB1 ϑ>
Interlocking_A BI12
&
Interlocking_B Cab BI13
CBFP
Interlocking_C BI14
Interlocking_D BI15
Interlocking_E BLOCK (BS) BI16
START
GROUP EXT_TRG
RESET TRIP
CBFP
CU_ALARM
OPEN
BINOPEN
PQ 3Inf
BINCLOSE
TRIGG HAR_HIGH
RESET CUM_HIGH
TCSSTATE
BS
3I>>
3I>>>
Output SWGRP's
Output signals
Master Trip
Trip 1
3I>
O−−>I 3I>>
DEFTRIP 3I>>>
LOCKOUT Io>-->
ROPEN
Io>>-->
RCLOSE
Io>>>-->
SHOT1 Iub>
SHOT2 3Ith>
SHOT3
3I>
SHOT4
3I>>
SHOT5
3I>>>
AR1TRIP Trip 2
Io>-->
AR2TRIP
Io>>-->
AR3TRIP
Io>>>-->
AR4TRIP
Iub>
3I>
CB FAIL
3Ith>
3I>>
DEFTRIP
3I>>> Trip 3
LOCKOUT
Io>-->
TRDUE
Io>>-->
TDDUE
Io>>>-->
ACTIVE
Iub>
SHOT_ALARM
3Ith>
I<−>Ο CB1
External trip
OOPEN
OCLOSE
3I>
AOPEN
3I>>
ACLOSE
3I>>>
CBFP
Io>-->
Io>>-->
Io>>>-->
I<−>O IND1 Iub>
3Ith>
I<−>O IND2
RCLOSE
Close
≥1
CLOSE
3I>
I<->O POS
3I>>
3I>>>
Start 1
Io>-->
Io
Io>>-->
Io>>>-->
3I>
Iub>
3I
3I>>
3Ith>
3I>>>
Start 2
Io>-->
Io>>-->
Uo Io>>>-->
Iub>
Lockout
3Ith>
DREC
BSOUT
3I>>
3I>>>
I<->0 CB1 open
I<->0 CB1 close
3Ith>
Start 3I>
Alarm 1
3I MCS
Start 3I>>
TCS
Start 3I>>>
PQ 3Inf har
Start Io>
I<->0 CB1 open
PQ 3Inf cum
Start Io>>
CB wear I<->0 CB1 close
Start Io>>>
3Ith>
Start 3Iub>
Alarm 2
3I MCS
Start 3Ith>
TCS
Trip 3I>
PQ 3Inf har
Trip 3I>>
SHOT1
PQ 3Inf cum
Trip 3I>>>
SHOT2
CB wear
Trip Io>
SHOT3
Trip Io>>
SHOT4
Trip Io>>>
SHOT5 O-->I Active
Trip 3Iub>
TRDUE
Trip 3Ith>
TDDUE
ACTIVE AR1TRIP
AR2TRIP
AR3TRIP
O-->I Alarm 1
CB wear
AR4TRIP
ALARM CBFAIL
DEFTRIP
AR1TRIP
LOCKOUT
AR2TRIP
SHOT_ALARM
AR3TRIP
TCS1
AR4TRIP
CBFAIL
ALARM Double
DEFTRIP
O-->I Alarm 2
LOCKOUT
MCS 3I
SHOT_ALARM
ALARM
Output relays
Ropen
Open
HSPO1
(X4.2.3/4/1/2)
≥1 ≥1
Lockout
S
HSPO1
Q
Lockout reset R Lockout Working
1
Lockout
PO1 (X4.1.12/13)
PO2 (X4.1.14/15)
PO3 (X4.1.17/18)
SO1 (X4.1.8/7/6)
(X4.1.10/11/9)
SO2