Siemens SINAMICS S120 Function Manual page 10

Preface
ESD notices
Caution
!
An electrostatic-sensitive device (ESD) is an individual component, integrated
circuit, or module that can be damaged by electrostatic fields or discharges.
Regulations for handling ESD components:
When handling components, make sure that personnel, workplaces, and
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packaging are well earthed.
Personnel in ESD areas with conductive flooring may only handle electronic
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components if:
-- They are grounded with an ESD wrist band
-- They are wearing ESD shoes or ESD shoe grounding straps
Electronic boards should only be touched if absolutely necessary. They must
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only be handled on the front panel or, in the case of printed circuit boards, at
the edge.
Electronic boards must not come into contact with plastics or items of clothing
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containing synthetic fibers.
Boards must only be placed on conductive surfaces (work surfaces with ESD
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surface, conductive ESD foam, ESD packing bag, ESD transport container).
Electronic modules must be kept at a distance from data display equipment,
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monitors, and televisions (minimum distance from screen: >10 cm).
Measurements must only be taken on boards when:
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-- The measuring device is grounded (with a protective conductor, for
example).
-- The measuring head has been temporarily discharged before
measurements are taken on a floating measuring device (e.g. touching a
bare metal controller housing).
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© Siemens AG, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition