3.10 Combined overcurrent status
3 Supporting functions
Technical description
134
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VM50.EN004
LINE FAULT
FltL1
FltL2
FltL3
0
1
Fault (=trip) status for
each phase.
0=No fault since fault
ClrDly
1=Fault is on
OCt
0
1
Combined overcurrent trip
status.
FltL1=FltL2=FltL3=0
FltL1=1 orFltL2=1 or
FltL3=1
LxTrip
On
Off
'On' Event enabling for
FltL1...3
Events are enabled
Events are disabled
Set
LxTripOff
On
Off
'Off' Event enabling for
FltL1...3
Events are enabled
Events are disabled
Set
OCTrip
On
Off
'On' Event enabling for
combined o/c trips
Events are enabled
Events are disabled
Set
OCTripOff
On
Off
'Off' Event enabling for
combined o/c starts
Events are enabled
Events are disabled
Set
IncFltEvnt
On
Off
Disabling several events
of the same fault
Several events are
enabled
*)
Several events of an
increasing fault is
disabled
**)
Set
ClrDly
0 ... 65535
s
Duration for active alarm
status FltL1, Flt2, FltL3
and OCt
Set
Set = An editable parameter (password needed)
*) Used with IEC 60870-105-103 communication protocol. The alarm screen
will show the latest if it's the biggest registered fault current, too. Not used
with Spabus, because Spabus masters usually don't like to have unpaired
On/Off events.
**) Used with SPA-bus protocol, because most SPA-bus masters do need an
off-event for each corresponding on-event.