D
CLK
Q
Q
PR
CL
GBT =GuardBefore Trip
TAG= Trip AfterGuard
CB=CheckBack Trip= TripFreq.Received
DTT =Direct Transfer Trip
LR=LineRelaying
D
CLK
Q
Q
PR
CL
U41
U13
U44
U35
U10
U1
GBT OVERRIDE
GBT OVERRIDE
U15
U8
U9
U34
U14
U38
U6
U19
U4
U33
U11
U31
U21
U2
U32
U16
U43
U37
U22
NORMAL GBT
NORMAL GBT
GBT DISABLED
GBT DISABLED
U30
U7
U12
U20
U42
U3
U5
U36
U17
U39
LogicLevel1
LogicLevel1
LogicLevel1
LogicLevel1
1= TRIP A OUT
1=GUARD A OUT
1=NOISEOUT
0
1=FADE ALARMOUT
1=FADEMARGINOUT
1=CB TRIP A OUT
1
1=GUARDBOUT
1= TRIP BOUT
1=CB TRIP BOUT
1
PRE-TRIP
TIMER
TRIP HOLD
TIMER
GBT OVERRIDE
TIMER
GBT RESTORE
TIMER
0
______
N
0
______
N
GUARDHOLD
TIMER
GBT TIMER
N=0to100msin
N=0to100msin
N=0to100msin
N=0to100msin
1mssteps.
1mssteps.
1mssteps.
1mssteps.
N=0to30msin
1mssteps.
Fromreceiverfront-end
andchannelbandpass
digitalfilter.
FSdiscriminator,
amplitudedetector
andfastnoise
detector
1=NOISE
LOWLEVEL
HOLD TIMER
0
__________
3ms
NOISEHOLD
TIMER
GBT Mode
Thesearenotreal
Thesearenotreal
switches. Theyshow
switches. Theyshow
programmedsetting.
programmedsetting.
1=LOW
LEVEL
3ms
__________
0
UNBLOCKDELAY
FORCMD A
N=0to100msin
1mssteps.
_________
N
0
UNBLOCK
TIMER
N=0to500msin
1mssteps.
N
_________
0
_________
N
0
TAG TIMER
1000ms
___________
0
200ms
0
___________
1=GOOD
CHANNEL
OUT
0
_________
120ms
_________
0
120ms
TheUnblockfunctionisdisabled
whenUnblock Timerisprogrammed
toN=0.
Receivedtripsetstimerto"N"
(timeroutputisthen0).
1=UnBlock Trip A
(ForSOEsonly).
PRE-TRIP
TIMER
TRIP HOLD
TIMER
GBT OVERRIDE
TIMER
GBT RESTORE
TIMER
0
______
N
0
______
N
GUARDHOLD
TIMER
GBT TIMER
_________
0
120ms
TAG TIMER
1000ms
___________
0
N=0to30msin
1mssteps.
200ms
0
___________
0
_________
120ms
_________
N
0
GBT Mode
1=COMMAND A (F4)
1=GUARD(F3)
1=COMMANDB(F2)
U18
UNBLOCKDELAY
FORCMDB
N=0to100msin
1mssteps.
N
_________
0
1=COMMAND A &B(F1)
N
N=0to500msin
1mssteps.
UNBLOCK TIMER
0
_________
U40
Receivedtripsetstimerto"N"
(timeroutputisthen0).
TheUnblockfunctionisdisabled
whenUnblock TimerisprogrammedtoN=0.
1=UnBlock TripB
(ForSOEsonly).