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NV021 - Manual - 08 - 2012
MEASURES, LOGIC STATES AND COUNTERS
Partial counters
xx Start partial counter (xx = U<, U<<,...)
0...9999
xx Trip partial counter (xx = U<, U<<,...)
0...9999
xx Block1 partial counter (xx = U<, U<<,...)
0...9999
xx Block2 partial counter (xx = U<, U<<,...)
0...9999
Total counters
xx Start total counter (xx = U<, U<<,...)
0...9999
xx Trip total counter (xx = U<, U<<,...)
0...9999
xx Block1 total counter (xx = U<, U<<,...)
0...9999
xx Block2 total counter (xx = U<, U<<,...)
0...9999
Self test
Lower level diagnostic (MINOR) can be output or ignored; for this purpose the
MINOR Fail alarm
parameter can be set
ON
or
OFF
inside the
Set \ Self test relay
submenu.
Following anomalies (MINOR) are not relevant (the protective elements continue to work):
Errors concerning the digital fault recorder.
Internal bus.
The self test information are:
Protection and controls
ON SERVICE/OUT OF SERVICE
System diagnostic
OK/NOT OK
Device diagnostic
OK/NOT OK
Program diagnostic
OK/NOT OK
Data-base boot
OK/NOT OK
Data-base runtime
OK/NOT OK
DSP boot
OK/NOT OK
DSP run-time
OK/NOT OK
Memory boot
OK/NOT OK
Memory run-time
OK/NOT OK
Data Bus heavy
OK/NOT OK
Data Bus minor
OK/NOT OK
Oscillography run-time
OK/NOT OK
PLC boot
OK/NOT OK
PLC run-time
OK/NOT OK
Protection I/O assigned verify startup
OK/NOT OK
Protection I/O assigned verify run-time major
OK/NOT OK
Protection I/O assigned verify run-time minor
OK/NOT OK
Total protection I/O assigned not-matching
0
Protection I/O assigned not-matching
PLC I/O assigned not-matching
OK/NOT OK
PLC I/O assigned not-matching run-time major
OK/NOT OK
PLC I/O assigned not-matching run-time minor
OK/NOT OK
Total PLC I/O assigned not-matching
0
PLC I/O assigned not-matching
MMI module Boot
OK/NOT OK
MMI module Run-time
OK/NOT OK
MRI module Boot
OK/NOT OK
MRI module Run-time
OK/NOT OK
MID16-1 module Boot
OK/NOT OK
MID16-1 module Run-time
OK/NOT OK
MID16-2 module Boot
OK/NOT OK
MID16-2 module Run-time
OK/NOT OK
PT100 module Boot
OK/NOT OK
PT100 module Run-time
OK/NOT OK
Current loop module Boot
OK/NOT OK
Current loop Run-time
OK/NOT OK
Oscillography run-time
OK/NOT OK
The diagnostic alarms can be allocated to an output relay; for this purpose the
Self-test relay
pa-
rameter can be set (
K1...K6
) inside the
Set \ Self-test Relay
submenu.
Fault recording - SFR
Recording is triggered by one or more causes (up to 8 simultaneous):
Activation (OFF-ON transition) of any relay programmed for trip of protection or control element
External trigger (binary input programmed as
Fault trigger
)
Twenty events are recorded into a circular FIFO (First In, First Out) buffer.
[1][2]
Following information are stored in every record:
Fault counter
[3]
Date and time
Fault cause (element trip)
Input phase voltages
U
L1r
,
U
L2r
,
U
L3r
Phase average voltages
U
L1avgr
,
U
L2avgr
,
U
L3avgr
Positive sequence voltage
U
1r
Negative sequence voltage
U
2r
Note 1 Fault 0 is the newest fault, while the Fault 19 is the oldest fault
Note 2 Data are stored in non volatile memory; they are held in spite of power down
Note 3 Counter is updated at any new record; it may be cleared by means ThySetter
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