Rockwell Automation 865 Differential Protection Relay - Manual (Page 76)

3-32 Protection
Functions
865-UM001A-EN-P – July 2009
Table 3.19 – Parameters of the Programmable Stages PrgN (99)
Parameter Value Unit Description Note
Status -
Blocked
Start
Trip
Current status of the stage
F
F
SCntr Cumulative start counter C
TCntr Cumulative trip counter C
SetGrp 1 or 2 Active setting group Set
SGrpDI
-
DIx
VIx
LEDx
VOx
Digital signal to select the active
setting group
None
Digital input
Virtual input
LED indicator signal
Virtual output Set
Force Off
On
Force flag for status forcing for test
purposes. This is a common flag for
all stages and output relays, too.
Automatically reset by a 5-minute
timeout. Set
Link (See table
above)
Name for the supervised signal Set
(See table
above) Value of the supervised signal
Cmp
>
<
Mode of comparison
Over protection
Under protection Set
Pickup Pick up value scaled to primary level
Pickup pu Pick up setting in pu Set
t s Definite operation time. Set
Hyster % Dead band setting Set
NoCmp pu Minimum value to start under
comparison. (Mode='<') Set
Set = An editable parameter (password needed)
C = Can be cleared to zero
F = Editable when force flag is on
Recorded values of the latest eight faults
Detailed information is available on the eight latest faults: Time
stamp, fault value and elapsed delay.
Table 3.20 – Recorded Values of the Programmable Stages PrgN (99)
Parameter Value Unit Description
yyyy-mm-dd Time stamp of the recording, date
hh:mm:ss.ms Time stamp, time of day
Flt pu Fault value
EDly % Elapsed time of the operating time setting.
100% = trip
SetGrp 1
2
Active setting group during fault