labelled FF must be connected if the available contact indicates that the voltage circuit
is faulty.
The VB1OK/VB2OK and VB1FF/VB2FF inputs are related to the busbar voltage and
the VLNOK and VLNFF inputs are related to the line voltage. Configure them to the
binary input or function outputs that indicate the status of the external fuse failure of
the busbar and line voltages. In the event of a fuse failure, the energizing check
function is blocked. The synchronism check function requires full voltage on both
sides and will be blocked automatically in the event of fuse failures.
12.1.3 Function block
ANSI10000046-1-en.vsd
SESRSYN (25)
V3PB1*
V3PB2*
V3PL1*
V3PL2*
BLOCK
BLKSYNCH
BLKSC
BLKENERG
BUS1_OP
BUS1_CL
BUS2_OP
BUS2_CL
LINE1_OP
LINE1_CL
LINE2_OP
LINE2_CL
VB1OK
VB1FF
VB2OK
VB2FF
VL1OK
VL1FF
VL2OK
VL2FF
STARTSYN
TSTSYNCH
TSTSC
TSTENERG
AENMODE
MENMODE
SYNOK
AUTOSYOK
AUTOENOK
MANSYOK
MANENOK
TSTSYNOK
TSTAUTSY
TSTMANSY
TSTENOK
VSELFAIL
B1SEL
B2SEL
L1SEL
L2SEL
SYNPROGR
SYNFAIL
VOKSYN
VDIFFSYN
FRDIFSYN
FRDIFFOK
FRDERIVA
VOKSC
VDIFFSC
FRDIFFA
PHDIFFA
FRDIFFM
PHDIFFM
INADVCLS
VDIFFME
FRDIFFME
PHDIFFME
Vbus
VLine
MODEAEN
MODEMEN
ANSI10000046 V1 EN
Figure 314: SESRSYN (25) function block
Section 12 1MRK505222-UUS C
Control
626
Technical reference manual
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