Combined Overcurrent Status - Allen-Bradley Rockwell Automation 857 User Manual

Combined Overcurrent Status

Table 4.18 – Setting Parameters of Timers
Parameter Value
TimerN
–
0
1
On hh:mm:ss
Off hh:mm:ss
Mode
–
Daily
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
MTWTF
MTWTFS
SatSun
This function is collecting faults, fault types and registered fault
currents of all enabled overcurrent stages.
Table 4.19 – Line Fault Parameters
Parameter Value
IFltLas
LINE ALARM
AlrL1
AlrL2
0
AlrL3
1
OCs
0
1
LxAlarm
On
Off
LxAlarmOff
On
Off
Supporting Functions
Description
Timer status
Not in use
Output is inactive
Output is active
Activation time of the timer
De-activation time of the timer
For each four timers there are 12 different modes
available:
The timer is off and not running. The output is off i.e. 0 all
the time.
The timer switches on and off once every day.
The timer switches on and off every Monday.
The timer switches on and off every Tuesday.
The timer switches on and off every Wednesday.
The timer switches on and off every Thursday.
The timer switches on and off every Friday.
The timer switches on and off every Saturday.
The timer switches on and off every Sunday.
The timer switches on and off every day except Saturdays
and Sundays
The timer switches on and off every day except Sundays.
The timer switches on and off every Saturday and
Sunday.
Unit Description
xImode Current of the latest overcurrent
fault
Start (=alarm) status for each
phase.
0=No start since alarm ClrDly
1=Start is on
Combined overcurrent start
status.
AlrL1=AlrL2=AlrL3=0
AlrL1=1 orAlrL2=1 or AlrL3=1
'On' Event enabling for AlrL1...3
Events are enabled
Events are disabled
'Off' Event enabling for AlrL1...3
Events are enabled
Events are disabled
4-25
Note
(Set)
Set
Set
857-UM001A-EN-P – July 2009