Allen-Bradley Rockwell Automation 857 User Manual page 168

4-26
Supporting Functions
857-UM001A-EN-P – July 2009
Table 4.19 – Line Fault Parameters (cont.)
Parameter Value
OCAlarm
On
Off
OCAlarmOff
On
Off
IncFltEvnt
On
Off
ClrDly 0 ... 65535
LINE FAULT
FltL1
FltL2
0
FltL3
1
OCt
0
1
LxTrip
On
Off
LxTripOff
On
Off
OCTrip
On
Off
OCTripOff
On
Off
IncFltEvnt
On
Off
ClrDly 0 ... 65535
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.
Unit Description
'On' Event enabling for combined
o/c starts
Events are enabled
Events are disabled
'Off' Event enabling for combined
o/c starts
Events are enabled
Events are disabled
Disabling several start and trip
events of the same fault
Several events are enabled
Several events of an increasing
fault is disabled
s Duration for active alarm status
AlrL1, Alr2, AlrL3 and OCs
Fault (=trip) status for each
phase.
0=No fault since fault ClrDly
1=Fault is on
Combined overcurrent trip status.
FltL1=FltL2=FltL3=0
FltL1=1 orFltL2=1 or FltL3=1
'On' Event enabling for FltL1...3
Events are enabled
Events are disabled
'Off' Event enabling for FltL1...3
Events are enabled
Events are disabled
'On' Event enabling for combined
o/c trips
Events are enabled
Events are disabled
'Off' Event enabling for combined
o/c starts
Events are enabled
Events are disabled
Disabling several events of the
same fault
Several events are enabled
Several events of an increasing
fault is disabled
s Duration for active alarm status
FltL1, Flt2, FltL3 and OCt
Note
Set
Set
Set
Set
Set
Set
Set
Set
Set
Set