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2 Operational Safety Adjust men t Ins tru ct ion s SIPL ACE H S-50 2.7 ESD Guidelines Edition 12/00 56 Å Do n ot allow mo dules with cha rgeable a nd highly insula ting m aterials to touch one ano ther , e.g. plas tic fi…
Adjustment Instructions SIPLACE HS-50 2 Operational Safety
Edition 12/00 2.7 ESD Guidelines
55
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Almost all of the modules in use today are equipped with highly integrated MOS blocks and
components. The manufacturing techniques used mean that these electronic components are
extremely sensitive to over voltage and thus to electrostatic discharge.
The abbreviation for such modules is ’ESD’(Electrostatic Sensitive Device). This is used interna-
tionally, although the German abbreviation ’EGB’ may also be seen.
The following symbol on cabinet rating plates, racks or packaging indicates that components
which are sensitive to electrostatic discharge have been used and thus that the modules con-
cerned are also touch - sensitive.
ESDs can be destroyed by voltages and power levels that are far below the level
that can be perceived by humans. Such voltages occur if a person touches a com-
ponent or module without earthing themselves. Components that are exposed to
such over voltages do not generally appear to be defective immediately - incorrect
behavior starts after the component or module has been in operation
for some time.
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Most plastics can easily become charged and must therefore be kept away from at - risk
components.
Å Always ensure that people, the workplace and packaging are safely earthened when handling
electrostatic sensitive components.
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Å Do not touch electronic modules unless it is absolutely essential to do so in order to carry out
other work.
Å If it is necessary, make sure that you do not touch the pins or printed conductors when you pick
up flat modules.
Å Do not touch components unless
Å you are constantly earthed by an ESD wrist strap or
Å you are wearing ESD shoes or ESD shoe earthing strips on an ESD floor.
Å Always discharge yourself before you touch an electronic module. To do this, simply touch a
conductive and earthed object immediately before you touch the module (such as unpainted
parts of a switch cabinet, a water pipe, etc.).
2 Operational Safety Adjustment Instructions SIPLACE HS-50
2.7 ESD Guidelines Edition 12/00
56
Å Do not allow modules with chargeable and highly insulating materials to touch one another,
e.g. plastic films, insulating table surfaces or items of clothing made from synthetic fibers.
Å Always place the modules on a conductive surface (table with an ESD coating, conductive
ESD foam, ESD bag or container).
Å Do not bring modules near visual display units, monitors or televisions. Keep them at least
10 cm away from the screen.
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Å Do not take measurements on such modules unless:
– the measuring device is earthed (e.g. via PE conductors) or
– you discharge the measuring head just before taking measurements with a potential - free
measuring device. (E.g. by touching an unpainted metal part of the controller casing).
Å Always use an earthed soldering iron if you carry out any soldering work.
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Always store modules and components in conductive packaging. (E.g. metallized plastic bags
or metal sleeves) and dispatch them in conductive packaging.
Å If the packaging is not conductive, place the modules in a conductive envelope before pack-
aging. (Use ESD bags, domestic aluminum foil or paper, for example. NEVER use plastic bags
or film).
Å If the module has integral batteries, ensure that the conductive packaging does not touch or
short-circuit the battery terminals and, if necessary, first cover the terminals with insulating tape
or material.
Adjustment Instructions SIPLACE HS-50 3 Test Equipment
Edition 12/00 3.1 Axis Test Box and Adapter Board
57
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Item no: Axis test box, including adapter board 00303430-06
Item no: Axis test box 00328041-05
Item no: Cable 00304771-03
Item no: Adapter board 00328040-01
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The axis test box is used in connection with the test adapter axis, for calibration of the dynamics
of the axes. (Placement head axes and gantry axes).