Siemens SINAMICS S120 Equipment Manual page 8

Preface
ESD Notices
Caution
Electrostatic sensitive devices (ESDs) are individual components, integrated circuits, or
boards that may be damaged by either electrostatic fields or electrostatic discharge.
Regulations for handling ESD components:
When handling components, make sure that personnel, workplaces, and packaging are well
earthed.
Personnel in ESD areas with conductive flooring may only handle electronic 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 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 containing
synthetic fibers.
Boards must only be placed on conductive surfaces (work surfaces with ESD surface,
conductive ESD foam, ESD packing bag, ESD transport container).
Do not place boards near display units, monitors, or television sets (minimum distance from
screen: 10 cm).
Measurements must only be taken on boards when:
The measuring instrument is grounded (via protective conductors, for example).
The measuring probe is briefly discharged before measurements are taken with an isolated
measuring device (for example, touching a bare metal housing).
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Equipment Manual Control Units and Additional System Components
Equipment Manual, (GH1), 12/2004 Edition, 6SL3097-2AH00-0BP1