1MRS751802-MUM
REX 521
49
Protection Relay
Technical Reference Manual, Standard Configurations
Fig. 3.3.5.2.-1 Block diagram of the standard configuration H05 for REX 521
CB
p
os
. o
p
en
CB
p
os
. c
lo
se
DC
p
os
. o
p
en
DC
p
os
. c
lo
se
ES
p
os
. o
p
en
ES
p
os
. c
lo
se
S
el
ect
or
Ou
tp
ut
S
W
GR
P
s
Ou
tp
ut
s
ig
na
ls
Ou
tp
ut
r
el
ay
s
Func
tio
n b
lo
cks
In
p
ut
SW
G
R
Ps
In
p
ut
s
ig
na
ls
Di
gi
ta
l
in
p
ut
s
Ter
m
in
al
con
nect
io
n
In
te
rlo
ck
in
g
sc
he
m
e
3I>>
3I>>>
BSOUT
I<->0 CB1 open
I<->0 CB1 close
MCS 3I
TCS1
PQ 3Inf har
PQ 3Inf cum
CB wear
MCS 3U
PQ 3Unf har
PQ 3Unf cum
Lockout
PO1
(X
4.1.12/13)
PO2
(X
4.1.14/15)
PO3
(X
4.1.17/18)
SO1
(X
4.1.8/7/6)
SO2
(X
4.1.10/11/9)
1
Lockout
Lockout reset
S
Q
R
Lockout Working
HSPO1
Master Trip
Open
>1
Ropen
Close
Open
CBO
Blocking 2
DREC trig
Master trip
Lockout reset
Lockout reset
PQ 3Inf trig
O/C
E/F
O/V
U/V
PQ 3Inf
RO/V
PQ 3Unf
3Ithdev>
DC1
DC2
ES1
ES2
DC2
ES2
DC1
ES1
TCS BS
CBO
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
DI9
I<->O CB1
Interlocking_A
Interlocking_B
Interlocking_C
Interlocking_D
Interlocking_E
CLOSEENA
&
Lockout Working
I<->O CB1
Close enable
External trip
External trip
External trip
3I2f START
3I2f START
BS1
3
I>
BS1
3
I>>
BS
1
3
I>>>
BS1
Io>
BS1
Io>>
BS
1
I
o
>>>
BS1
3
U
>
BS1
3
U
>>
BS1
3
U
<
BS1
3
U
<<
BS1
Uo>
BS1
Uo>>
BS1
Uo>>>
BS
2
3
I>
BS
2
3
I>>
BS
2
3
I>>>
BS
2
Io>
BS
2
Io>>
BS
2
I
o
>>>
BS
2
3
U
>
BS
2
3
U
>>
BS
2
3
U
<
BS
2
3
U
<<
BS
2
Uo>
BS
2
Uo>>
BS
2
Uo>>>
BS 3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3U>
3U>>
3U<
3U<<
Uo>
Uo>>
Uo>>>
3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3Ithdev
>
PQ 3Unf trig
I<->O CB1
OPEN
OPENENA
CLOSE
CLOSEENA
BINOPEN
BINCLOSE
OOPEN
OCLOSE
AOPEN
ACLOSE
3I
IL1
IL2
IL3
Io
Io
I<->O IND1
BINOPEN
BINCLOSE
I<->O IND2
BINOPEN
BINCLOSE
I<->O POS
BINLOCAL
BINREMOTE
TCSSTATE
BS
ALARM
TCS1
ALARM
MCS 3I
Uo
Uo
REX 521
3U
UL1_U12
UL2_U23
UL3_U31
PQE
f
ALARM
MCS 3U
TRIGG
RESET
HAR_HIGH
CUM_HIGH
PQ 3Inf
TRIGG
RESET
HAR_HIGH
CUM_HIGH
PQ 3Unf
Io>
CBFP
BS1
BS2
GROUP
RESET
START
TRIP
CBFP
Io>>
CBFP
BS1
BS2
GROUP
RESET
START
TRIP
CBFP
Io>>>
CBFP
BS1
BS2
GROUP
RESET
START
TRIP
CBFP
3I>
BS1
BS2
GROUP
RESET
CBFP
START
TRIP
CBFP
3I>>
CBFP
BS1
BS2
GROUP
DOUBLE
RESET
BSOUT
START
TRIP
CBFP
3I>>>
CBFP
BS1
BS2
GROUP
DOUBLE
RESET
BSOUT
START
TRIP
CBFP
BS1
BS2
GROUP
RESET
START
TRIP
3U>
BS1
BS2
GROUP
RESET
START
TRIP
3U>>
BS1
BS2
GROUP
RESET
START
TRIP
3U<
BS1
BS2
GROUP
RESET
START
TRIP
3U<<
BS1
BS2
GROUP
RESET
START
TRIP
Uo>>
BS1
BS2
GROUP
RESET
START
TRIP
Uo>>>
BS1
BS2
GROUP
RESET
START
TRIP
Uo>
DREC
IL1
IL2
IL3
Io
Iob
Uo
U12
U23
BI1
BI2
BI3
BI4
BI5
BI6
BI7
BI8
BI9
BI10
BI11
BI12
BI13
BI14
BI15
BI16
EXT_TRG
Start 3I>
Start 3I>>
Start 3I>>>
Start Io>
Start Io>>
Start Io>>>
Start 3U>
Start 3U>>
Start 3U<
Start 3U<<
Start Uo>
Start Uo>>
Start Uo>>>
Trip1
Trip2
Trip3
GROUP
START
3I
2f
/I
1f
>
3dI/dt>
3I2f>
OPEN
BINOPEN
BINCLOSE
ALARM
CB wear
O/C
E/F
O/V
U/V
PQ 3Inf
RO/V
PQ 3Unf
3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3U>
3U>>
3U<
3U<<
Uo>
Uo>>
Uo>>>
3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3U>
3U>>
3U<
3U<<
Uo>
Uo>>
Uo>>>
3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3U>
3U>>
3U<
3U<<
Uo>
Uo>>
Uo>>>
3Ithdev
>
3I>
3I>>
3I>>>
Io>
Io>>
Io>>>
3U>
3U>>
3U<
3U<<
Uo>
Uo>>
Uo>>>
3Ithdev
>
I<->0 CB1 open
I<->0 CB1 close
MCS 3I
TCS1
PQ 3Inf har
PQ 3Inf cum
CB wear
MCS 3U
PQ 3Unf har
PQ 3Unf cum
>1
Master trip
Reset 2
SWGRP
Reset 1
Group
X4.2.5/6
X4.2.6/7
X4.2.8/9
X4.2.9/10
X4.2.11/12
X4.2.13/14
X4.2.15/16
X4.2.17/18
X3.1.1/2
Blocking 1
Trip 2
Trip 3
Start 1
Alarm 2
Lockout
HSPO1
(X
4.2.3/4/1/2)
CBFP
Start 2
Alarm 1
Close
I<->O IND1
I<->O IND2
SWGRP
DOUBLE 3I>>
DOUBLE 3I>>>
ConfH05_c
O/C
E/F
O/V
U/V
RO/V
Logic input 1
Logic input 2
Logic input 3
Remote
Trip 1
3I2f START
3I2f START
BS1 3I>
BS1 3I>>
BS1 3I>>>
BS1 Io>
BS1 Io>>
BS1 Io>>>
BS1 3U>
BS1 3U>>
BS1 3U<
BS1 3U<<
BS1 Uo>
BS1 Uo>>
BS1 Uo>>>
BS2 3I>
BS2 3I>>
BS2 3I>>>
BS2 Io>
BS2 Io>>
BS2 Io>>>
BS2 3U>
BS2 3U>>
BS2 3U<
BS2 3U<<
BS2 Uo>
BS2 Uo>>
BS2 Uo>>>
BS
3Ithdev
>
Io> Start
Io> Trip
Io>> Start
Io>> Trip
Io>>> Start
Io>>> Trip
3It
hdev
> St
art
3Ithdev
> Trip
3U> Start
3U> Trip
3U>> Start
3U>> Trip
3U< Start
3U< Trip
3U<< Start
3U<< Trip
Uo> Start
Uo> Trip
Uo>> Start
Uo>> Trip
Uo>>> Start
Uo>>> Trip
DI1
DI2
DI1
DI2
DI3
DI4
DI5
DI6
DI7
DI8
MEAS HI ALARM
DI2
DI3
DI4
DI5
DI6
DI7
Interlocking
MEAS LO ALARM
MEAS HI ALARM
DI3
DI4
DI5
DI6
DI7
Lockout
CB wear
TCS1
MCS 3I
MCS 3U
DI5
DI6
DI7
DI8
Alarm LED1
Alarm LED2
Alarm LED3
Alarm LED4
Alarm LED5
Alarm LED6
Alarm LED7
Alarm LED8
3I> Start
3I> Trip
3I>> Start
3I>> Trip
3I>>> Start
3I>>> Trip
BLOCK
R
ESET
STA
R
T
TRIP
CBFP
3
J>
De
v
CBFP
3Ithdev
>
Summary of Contents for REX 521
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