Siemens 7VK512

-ETHOD OF OPERATION6+
6

#
' #
 !NCILLARY FUNCTIONS
4HE ANCILLARY FUNCTIONS OF THE NUMERICAL AUTO RECLO
SURE RELAY 6+ INCLUDE
0ROCESSING OF ANNUNCIATIONS
3TORAGE OF MEASURED DATA FOR FAULT RECORDING
/PERATIONAL MEASUREMENTS AND TESTING ROUTINES
-ONITORING FUNCTIONS
 0ROCESSING OF ANNUNCIATIONS
!FTER A FAULT IN THE PROTECTED OBJECT INFORMATION CON
CERNING THE RESPONSE OF THE DEVICE AND KNOWLEDGE
OF THE MEASURED VALUES ARE OF IMPORTANCE FOR AN EX
ACT ANALYSIS OF THE HISTORY OF THE FAULT &OR THIS PUR
POSE THE DEVICE PROVIDES ANNUNCIATION PROCESSING
WHICH IS EFFECTIVE IN THREE DIRECTIONS
 )NDICATORS AND BINARY OUTPUTS
SIGNAL RELAYS
)MPORTANT EVENTS AND CONDITIONS ARE INDICATED BY
OPTICAL INDICATORS ,%$ ON THE FRONT PLATE 4HE MOD
ULE ALSO CONTAINS SIGNAL RELAYS FOR REMOTE SIGNALLING
-OST OF THE SIGNALS AND INDICATIONS CAN BE MAR
SHALLED IE THEY CAN BE ALLOCATED MEANINGS OTHER
THAN THE FACTORY SETTINGS )N 3ECTION  THE DELIVERED
CONDITION AND THE MARSHALLING FACILITIES ARE DE
SCRIBED IN DETAIL
4HE OUTPUT SIGNAL RELAYS ARE NOT LATCHED AND AUTO
MATICALLY RESET AS SOON AS THE ORIGINATING SIGNAL DIS
APPEARS 4HE ,%$S CAN BE ARRANGED TO LATCH OR TO BE
SELF
RESETTING
4HE MEMORIES OF THE ,%$S CAN BE SAFE AGAINST SUP
PLY VOLTAGE FAILURE 4HEY CAN BE RESET
LOCALLY BY OPERATION OF THE RESET BUTTON ON THE
RELAY
REMOTELY BY ENERGIZATION OF THE REMOTE RESET IN
PUT
AUTOMATICALLY ON OCCURRENCE OF A NEW GENERAL
PICK
UP SIGNAL
3OME INDICATORS AND RELAYS INDICATE CONDITIONS IT IS
NOT APPROPRIATE THAT THESE SHOULD BE STORED %QUALLY
THEY CANNOT BE RESET UNTIL THE ORIGINATING CRITERION
HAS BEEN REMOVED 4HIS MAINLY CONCERNS FAULT INDI
CATIONS SUCH AS
AUXILIARY VOLTAGE FAULT  ETC
! GREEN ,%$ INDICATES READINESS FOR OPERATION 4HIS
,%$ CANNOT BE RESET AND REMAINS ILLUMINATED WHEN
THE MICROPROCESSOR IS WORKING CORRECTLY AND THE UNIT
IS NOT FAULTY 4HE ,%$ EXTINGUISHES WHEN THE SELF
CHECKING FUNCTION OF THE MICROPROCESSOR DETECTS A
FAULT OR WHEN THE AUXILIARY VOLTAGE IS ABSENT
7ITH THE AUXILIARY VOLTAGE PRESENT BUT WITH AN EXIST
ING INTERNAL FAULT IN THE UNIT A RED ,%$ ILLUMINATES

"LOCKED  AND BLOCKS THE UNIT
 )NFORMATION ON THE DISPLAY PANEL OR TO
A PERSONAL COMPUTER
%VENTS AND CONDITIONS CAN BE READ OFF IN THE DISPLAY
ON THE FRONT PLATE OF THE DEVICE !DDITIONALLY A PER
SONAL COMPUTER FOR EXAMPLE CAN BE CONNECTED VIA
THE OPERATION INTERFACE AND ALL THE INFORMATIONS CAN
THEN BE SENT TO IT
)N THE QUIESCENT STATE IE AS LONG AS NO NETWORK
FAULTS ARE PRESENT THE DISPLAY OUTPUTS SELECTABLE OP
ERATING INFORMATION USUALLY AN OPERATIONAL MEA
SURED VALUE MODELS WITH SYNCHRONISM AND VOLTAGE
CHECK IN EACH OF THE TWO LINES )N THE EVENT OF A NET
WORK FAULT SELECTABLE INFORMATION ON THE FAULT AP
PEARS INSTEAD OF THE OPERATING INFORMATION EG DE
TECTED PHASES 4HE QUIESCENT INFORMATION IS DIS
PLAYED AGAIN ONCE THESE FAULT ANNUNCIATIONS HAVE
BEEN ACKNOWLEDGED 4HE ACKNOWLEDGEMENT IS
IDENTICAL TO RESETTING OF THE STORED ,%$ DISPLAYS AS IN
3ECTION 
4HE DEVICE ALSO HAS SEVERAL EVENT BUFFERS EG FOR
OPERATING MESSAGES CIRCUIT BREAKER OPERATION STA
TISTICS ETC REFER TO 3ECTION  WHICH CAN BE SAVED
AGAINST SUPPLY VOLTAGE FAILURE BY A BUFFER BATTERY
4HESE MESSAGES AS WELL AS ALL AVAILABLE OPERATING
VALUES CAN BE TRANSFERRED INTO THE FRONT DISPLAY AT
ANY TIME USING THE KEYBOARD OR TO THE PERSONAL COM
PUTER VIA THE OPERATING INTERFACE
!FTER A FAULT FOR EXAMPLE IMPORTANT INFORMATION CON
CERNING ITS HISTORY SUCH AS PICK
UP AND TRIPPING
CAN BE CALLED UP ON THE DISPLAY OF THE DEVICE 4HE
FAULT INCEPTION IS INDICATED WITH THE ABSOLUTE TIME OF
THE OPERATING SYSTEM PROVIDED THIS FEATURE IS AVAIL
ABLE 4HE SEQUENCE OF THE EVENTS IS TAGGED WITH THE
RELATIVE TIME REFERRED TO THE MOMENT AT WHICH THE
FAULT DETECTOR HAS PICKED UP 4HE RESOLUTION IS  MS