MEASURES, LOGIC STATES AND COUNTERS
131
NA30 - Manual - 04 - 2022
• Reset CB monitoring data ON/OFF
• 52a ON/OFF
• 52b ON/OFF
• Open CB ON/OFF
• Close CB ON/OFF
• Thermal image presetting ON/OFF
• Remote trip ON/OFF
• Reset on demand measures ON/OFF
• 74VT ext. ON/OFF
Relays
For every output relay, the output operating state and diagnostic are available (Read\Relays menu):
• K1 State ON/OFF
• K1 Diagnostic OK/NOT OK
• K2 State ON/OFF
• K2 Diagnostic OK/NOT OK
• ......
• K6 State ON/OFF
• K6 Diagnostic OK/NOT OK
Counters
For every element two set of counters are available (Partial counters and Total counters); the partial
counters can be cleared by the user level, while the Total counter reset can be achieved with pass-
word (Session Level 1).
Every partial counter is reset to zero when ten thousand count is passed.
All partial counters can be cleared by means a single command; for this purpose the Reset partial
counters command must be issued (Commands\Reset submenu).
• 49 - counter
• 50/51 - counter
• 50N/51N - counter
• 59N - counter
• 67N - counter
• 2ndh-REST - counter
• 74TCS - counter
• CB - counter
• 74CT - counter
• BF - counter
Partial counters
• xx Start partial counter (xx = I>, I>>,...) 0...9999
• xx Trip partial counter (xx = I>, I>>,...) 0...9999
• xx Block1 partial counter (xx = I>, I>>,...) 0...9999
• xx Block2 partial counter (xx = I>, I>>,...) 0...9999
• ....
Total counters
• xx Start total counter (xx = I>, I>>,...) 0...9999
• xx Trip total counter (xx = I>, I>>,...) 0...9999
• xx Block1 total counter (xx = I>, I>>,...) 0...9999
• xx Block2 total counter (xx = I>, I>>,...) 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
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