/PERATING INSTRUCTIONS
3$
6
# ' #
%RASING STORED ANNUNCIATIONS AND COUNTERS
ADDRESS BLOCK
4HE STATISTICAL INDICATIONS 3ECTION ADDRESS
ARE STORED IN %%02/-S IN THE DEVICE 4HEY
ARE NOT THEREFORE ERASED IF THE AUXILIARY POWER SUPPLY
FAILS !DDITIONALLY ANNUNCIATIONS AND THE STATUS OF
THE ,%$ MEMORIES ARE STORED IN .6 2!-S AND THUS
SAVED PROVIDED THE BACKUP BATTERY IS OPERATIONAL
4HESE STORES CAN BE CLEARED IN BLOCK "LOCK IS
CALLED UP BY PAGING WITH THE KEYS
Å
OR
Ç
OR DIRECTLY
BY KEYING IN THE CODE
$! %
7ITH THE EXCEP
TION OF RESETTING THE ,%$ INDICATIONS ADDRESS
CODEWORD ENTRY IS NECESSARY TO ERASE THE STORED
ITEMS 2ESET IS SEPARATE FOR THE DIFFERENT GROUPS OF
COUNTERS MEMORIES AND ANNUNCIATIONS /NE REACH
ES THE INDIVIDUAL ITEMS BY PAGING
! "
%RASURE RE
QUIRES CONFIRMATION WITH THE KEY
*9
4HE DISPLAY
THEN CONFIRMS THE ERASURE )F ERASURE IS NOT REQUIRED
PRESS KEY
.
OR SIMPLY PAGE ON
2 % 3 % 4
"EGINNING OF BLOCK 2ESET
2 % 3 % 4
, % $
2EQUEST WHETHER THE ,%$ MEMORIES SHOULD BE RESET
2 % 3 % 4
/ 0 % 2 ! 4 ! . . 5 . #
2EQUEST WHETHER THE OPERATIONAL ANNUNCIATION BUFFER
STORE SHOULD BE ERASED
2 % 3 % 4
& ! 5 , 4
! . . 5 . #
2EQUEST WHETHER THE FAULT ANNUNCIATION BUFFER AND
FAULT RECORDING STORES SHOULD BE ERASED
2EQUEST WHETHER THE #" OPERATION COUNTERS SHOULD
BE SET TO ZERO
2 % 3 % 4
# / 5 . 4 % 2 3
2 % 3 % 4
4 / 4 ! ,
) S C
2EQUEST WHETHER THE TOTAL OF SWITCHED SHORTCIRCUIT
CURRENTS SHOULD BE SET TO ZERO
$URING ERASURE OF THE STORES WHICH MAY TAKE SOME TIME THE DISPLAY SHOWS 4!3+ ). 02/'2%33 !FTER ERASURE
THE RELAY ACKNOWLEDGES ERASURE EG
2 % 3 % 4
3 5 # # % 3 3 & 5 ,
Summary of Contents for 7SD502
Page 148: ... PPENDIX 3 6 PPENDIX ENERAL DIAGRAMS ONNECTION DIAGRAMS 4ABLES ...
Page 176: ... 3 6 ...
