-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 DC 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 PCB %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 IE 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 PCB %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
