ABB Relion 620 Series, Руководство по применению

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1MAC308145-MB E
Section 3
RER620 application
RER620 47
Application Manual
Figure 29: Synch-check function
RER620 “Latched Open” logic scheme:
The RER620 has a user settable “Latched Open” logic scheme as a part of default
configuration. This logic scheme will use one local HMI push button which will
immediately open all breaker poles (see Figure 9 and Figure 27) and set the
SECR
S
Y
N
1(
25;
SY
N
BL
OCK
CL
_C
OM
MA
ND
BYPA
SS
SYNC_
INPRO
SYNC_
OK
CL
_F
AI
L_AL
CM
D_
FA
IL_AL
LLD
B
LLLB DL
LB
DL
DB
AN
D
B1 B2
O
NO
T
IN
OUT
OR
B1 B2
O
SEQRF
U
F1_60_F
U
SEF
_
U
SEC
R
SY
N1_25_SY
N
C_OK
SP
C
G
G
IO2_25_BLK
SP
C
G
G
IO2_25_BLK
SEC
R
SY
N1_25_SY
N
C_I
NPR
O
Note: In
synch-check
function
the
two
vo
ltage
inputs
ar
e
re
fe
rr
ed
to
a
s
Bus
a
nd
Line
w
hi
le
R
E
R
62
0
the
in
puts are
referred to as
Sou
rc
e-1
and
Sour
ce-
2.
Unle
ss othe
rwise indica
te
d, con
sider
Source-1 as Bus
an
d
Sou
rce-
2 as
L
ine
s
ide
.
Fo
r exam
ple if So
ur
ce
2
vo
lta
ge g
oes belo
w
the ‘dead’ threshold
setting, the same will be
considere
d
as
Line
Dead
as
TRUE
by
synchro
che
ck fu
nction. If Sour
ce 2 voltage
g
oe
s
above ‘live’ threshold,
the Liv
e Line will be
TRUE.