U14U5
U34
U7
U3
U19
NORMAL GBT
U15
NORMAL GBT
U13
U30
U9
U37
U18
U11
U1
U6
U32
U8
U10
U38
GBT OVERRIDE
U12
GBT DISABLED
U20
GBT OVERRIDE
U35
U4
U2
GBT DISABLED
U36
U31
U33
U17
LogicLevel1
LogicLevel1
LogicLevel1
1=LR TRIP OUT
1=LRGUARDOUT
1=NOISEOUT
0
1=FADE ALARMOUT
1=FADEMARGINOUT
1=CBLR TRIP OUT
1
1=DTT TRIP OUT
1=DTT GUARDOUT
1=CBDTT TRIP OUT
D
CLK
Q
Q
PRCL
PRE-TRIP TIMER
TRIP HOLD TIMER
GBT OVERRIDE
TIMER
GBT RESTORE
TIMER
0
______
N
0
______
N
GUARDHOLD
TIMER
GBT TIMER
N=0to100msin
1mssteps.
N=0to100msin
1mssteps.
N=0to30msin
1mssteps.
Fromreceiverfront-end
andchannelbandpass
digitalfilter.
FSdiscriminator,
amplitudedetector&
fastnoisedetector
1=NOISE
LOWLEVEL
HOLD TIMER
0
__________
3ms
NOISEHOLD
TIMER
GBT Mode
Thesearenotreal
switches. Theyshow
programmedsetting.
1=LOW
LEVEL
3ms
__________
0
UNBLOCKDELAY
GBT =GuardBefore Trip
TAG= Trip AfterGuard
CB=CheckBack Trip= TripFreq.Received
DTT =Direct Transfer Trip
LR=LineRelaying
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
(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
___________
N=0to100msin
1mssteps.
N=0to100msin
1mssteps.
0
_________
120ms
_________
N
0
Thesearenotreal
switches. Theyshow
programmedsetting.
GBT Mode
1=LR TRIP FREQ(HF)
1=GUARDFREQ(CF)
1=DTT TRIP FREQ(LF)
U16