Rockwell Automation 865 Differential Protection Relay User Manual

Page 96

4-4 Supporting

Functions

865-UM001A-EN-P – July 2009

Table 4.4 – Disturbance Recorder Parameters

Parameter

Value

Unit

Description

Note

Mode

Saturated
Overflow

Behaviour in memory full
situation:
No more recordings are accepted
The oldest recorder will be
overwritten

Set

32/cycle
16/cycle
8/cycle
1/10ms
1/20ms
1/200ms
1/1s
1/5s
1/10s
1/15s
1/30s
1/1min

Sample

rate

Waveform
Waveform
Waveform
One cycle value
One cycle value
Average
Average
Average
Average
Average
Average
Average

Set

Time

Recording

length

Set

PreTrig

Amount of recording data before
the trig moment

Set

MaxLen

Maximum time setting.
This value depends on sample
rate, number and type of the
selected channels and the
configured recording length.

Status

–
Run
Trig
FULL

Status of recording
Not active
Waiting a triggering
Recording
Memory is full in saturated mode

ManTrig

–
Trig

Manual

triggering

Set

ReadyRec

n/m

n = Available recordings
m = maximum number of
recordings
The value of 'm' depends on
sample rate, number and type of
the selected channels and the
configured recording length.

Set = An editable parameter (password needed)

This is the fundamental frequency rms value of one cycle updated every 10 ms.
This is the fundamental frequency rms value of one cycle updated every 20 ms.