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
