Siemens 7VK512

-AINTENANCE AND FAULT TRACING6+
6

#
' #
 2EPLACING THE CLOCK MODULE
)F THE DEVICE IS EQUIPPED WITH THE CLOCK OPTION MOD
EL 6+J
JJJJ JJ REFER TO 3ECTION  /RDER
ING DATA THE DEVICE ANNUNCIATIONS ARE STORED IN
.6
2!-S 4HE CLOCK MODULE CONTAINS ALSO THE
BACK
UP BATTERY SO THAT THE ANNUNCIATIONS ARE RE
TAINED EVEN WITH A LONGER FAILURE OF THE DC SUPPLY
VOLTAGE
4HE CLOCK MODULE SHOULD BE REPLACED AT THE LATEST
AFTER  YEARS OF OPERATION
2ECOMMENDED CLOCK MODULE
$!,,!3
$3 
 +
2!-IFIED 4)-%+%%0%2
4HE MODULE IS LOCATED ON THE BASIC PCB %03

4HE COMPLETE DRAW
OUT MODULE MUST BE REMOVED
FROM THE HOUSING IN ORDER TO REPLACE THE CLOCK MOD
ULE
4HE PROCEDURE WHEN REPLACING THE BATTERY IS DE
SCRIBED BELOW
0REPARE AREA OF WORK PROVIDE CONDUCTIVE SURFACE
FOR THE BASIC MODULE
/PEN HOUSING COVER
2EAD OUT DEVICE ANNUNCIATIONS IE ALL ADDRESSES
WHICH COMMENCE WITH   ONWARDS 4HIS IS
CARRIED OUT MOST CONVENIENT USING THE FRONT OPER
ATING INTERFACE AND A PERSONAL COMPUTER WITH THE
$)'3)q PROTECTION DATA PROCESSING PROGRAM THE
INFORMATION IS THUS STORED IN THE 0#
.OTE !LL CONFIGURATION DATA AND SETTINGS OF THE DE
VICE ARE STORED IN %%02/-S PROTECTED AGAINST
SWITCHING OFF OF THE POWER SUPPLY 4HEY ARE STORED
INDEPENDENT OF THE CLOCK MODULE 4HEY ARE THERE
FORE NEITHER LOST WHEN THE CLOCK MODULE IS RE
PLACED NOR WHEN THE DEVICE IS OPERATED WITHOUT A
CLOCK MODULE
(AZARDOUS VOLTAGES CAN BE PRESENT IN
THE DEVICE EVEN AFTER DISCONNECTION OF
THE SUPPLY VOLTAGE OR AFTER REMOVAL OF THE
MODULES FROM THE HOUSING STORAGE CA
PACITORS

7ARNING
,OOSEN THE DRAW OUT MODULE USING THE PULLING
AIDS PROVIDED AT THE TOP AND BOTTOM &IGURE 
%LECTROSTATIC DISCHARGES VIA THE COMPO
NENT CONNECTIONS THE 0#" TRACKS OR THE
CONNECTING PINS OF THE MODULES MUST BE
AVOIDED UNDER ALL CIRCUMSTANCES BY PRE
VIOUSLY TOUCHING AN EARTHED METAL SUR
FACE

#AUTION
0ULL OUT BASIC MODULE AND PLACE ONTO THE CONDUC
TIVE SURFACE
'ET ACCESS TO THE BASIC PCB %03 
0ULL OUT USED CLOCK MODULE FROM THE SOCKET AC
CORDING TO &IGURE  DO NOT PLACE ON THE CON
DUCTIVE SURFACE
)NSERT THE PREPARED NEW CLOCK MODULE INTO THE
SOCKET OBSERVE CORRECT MOUNTING POSITION
2EMOUNT 0#" BOARD TO THE DRAW OUT MODULE
)NSERT DRAW OUT MODULE INTO THE HOUSING ENSURE
THAT THE RELEASING LEVER IS PUSHED FULLY TO THE RIGHT
BEFORE THE MODULE IS PRESSED IN
&IRMLY PUSH IN THE MODULE USING THE RELEASING LE
VER &IGURE 
4HE DISCHARGED BATTERY CONTAINS ,ITHI
UM )T MUST ONLY BE DISPOSED OFF IN LINE
WITH THE APPLICABLE REGULATIONS
$O NOT REVERSE POLARITIES $O NOT RE
CHARGE $O NOT THROW INTO FIRE $ANGER
OF EXPLOSION

7ARNING
0ROVIDED THE INTERNAL SYSTEM CLOCK IS NOT AUTOMAT
ICALLY SYNCHRONIZED VIA THE ,3! INTERFACE IT CAN
NOW BE SET OR SYNCHRONIZED AS DESCRIBED IN 3EC
TION 
#LOSE HOUSING COVER
4HE REPLACEMENT OF THE CLOCK MODULE HAS THUS BEEN
COMPLETED