Siemens 7VK512

2EPAIRS 3TORAGE6+
6

#
' #
 2EPAIRS
2EPAIR OF DEFECTIVE MODULES IS NOT RECOMMENDED AT
ALL BECAUSE SPECIALLY SELECTED ELECTRONIC COMPO
NENTS ARE USED WHICH MUST BE HANDLED IN ACCOR
DANCE WITH THE PROCEDURES REQUIRED FOR %LECTROSTATI
CALLY %NDANGERED #OMPONENTS %%# &URTHER
MORE SPECIAL MANUFACTURING TECHNIQUES ARE NECES
SARY FOR ANY WORK ON THE PRINTED CIRCUIT BOARDS IN OR
DER TO DO NOT DAMAGE THE BATH
SOLDERED MULTILAYER
BOARDS THE SENSITIVE COMPONENTS AND THE PROTEC
TIVE FINISH
4HEREFORE IF A DEFECT CANNOT BE CORRECTED BY OPERA
TOR PROCEDURES SUCH AS DESCRIBED IN #HAPTER  IT IS
RECOMMENDED THAT THE COMPLETE RELAY SHOULD BE RE
TURNED TO THE MANUFACTURER 5SE THE ORIGINAL TRANS
PORT PACKAGING FOR RETURN )F ALTERNATIVE PACKING IS
USED THIS MUST PROVIDE THE DEGREE OF PROTECTION
AGAINST MECHANICAL SHOCK AS LAID DOWN IN )%#

  CLASS  AND )%#    CLASS 
)F IT IS UNAVOIDABLE TO REPLACE INDIVIDUAL MODULES IT IS
IMPERATIVE THAT THE STANDARDS RELATED TO THE HANDLING
OF %LECTROSTATICALLY %NDANGERED #OMPONENTS ARE
OBSERVED
(AZARDOUS VOLTAGES CAN BE PRESENT IN THE
DEVICE EVEN AFTER DISCONNECTION OF THE SUP
PLY VOLTAGE OR AFTER REMOVAL OF THE MODULE
FROM THE HOUSING STORAGE CAPACITORS

7ARNING
%LECTROSTATIC DISCHARGES VIA THE COMPONENT
CONNECTIONS THE 0#" TRACKS OR THE CON
NECTING PINS OF THE MODULES MUST BE
AVOIDED UNDER ALL CIRCUMSTANCES BY PRE
VIOUSLY TOUCHING AN EARTHED METAL SURFACE
4HIS APPLIES EQUALLY FOR THE REPLACEMENT OF
REMOVABLE COMPONENTS SUCH AS %02/-
OR %%02/- CHIPS &OR TRANSPORT AND RE
TURNING OF INDIVIDUAL MODULES ELECTROSTATIC
PROTECTIVE PACKING MATERIAL MUST BE USED

#AUTION
#OMPONENTS AND MODULES ARE NOT ENDANGERED AS
LONG AS THEY ARE INSTALLED WITHIN THE RELAY
3HOULD IT BECOME NECESSARY TO EXCHANGE ANY DE
VICE OR MODULE THE COMPLETE PARAMETER ASSIGNMENT
SHOULD BE REPEATED 2ESPECTIVE NOTES ARE CONTAINED
IN #HAPTER  AND 
 3TORAGE
3OLID STATE PROTECTIVE RELAYS SHALL BE STORED IN DRY
AND CLEAN ROOMS 4HE LIMIT TEMPERATURE RANGE FOR
STORAGE OF THE RELAYS OR ASSOCIATED SPARE PARTS IS
 ^#TO^# REFER TO 3ECTION  UNDER THE
4ECHNICAL DATA CORRESPONDING TO
 ^& TO  ^&
4HE RELATIVE HUMIDITY MUST BE WITHIN LIMITS SUCH THAT
NEITHER CONDENSATION NOR ICE FORMS
)T IS RECOMMENDED TO REDUCE THE STORAGE TEMPERA
TURE TO THE RANGE 
# TO  #  &TO &
THIS PREVENTS FROM EARLY AGEING OF THE ELECTROLYTIC CA
PACITORS WHICH ARE CONTAINED IN THE POWER SUPPLY
&OR VERY LONG STORAGE PERIODS IT IS RECOMMENDED
THAT THE RELAY SHOULD BE CONNECTED TO THE AUXILIARY
VOLTAGE SOURCE FOR ONE OR TWO DAYS EVERY OTHER YEAR
IN ORDER TO REGENERATE THE ELECTROLYTIC CAPACITORS
4HE SAME IS VALID BEFORE THE RELAY IS FINALLY INSTALLED
)N EXTREME CLIMATIC CONDITIONS TROPICS PRE
WARM
ING WOULD THUS BE ACHIEVED AND CONDENSATION
AVOIDED
"EFORE INITIAL ENERGIZATION WITH SUPPLY VOLTAGE THE
RELAY SHALL BE SITUATED IN THE OPERATING AREA FOR AT
LEAST TWO HOURS IN ORDER TO ENSURE TEMPERATURE
EQUALIZATION AND TO AVOID HUMIDITY INFLUENCES AND
CONDENSATION