Siemens SINAMICS S120 Equipment Manual page 7

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 electronic components, you must ensure that the person carrying out the
work, the work place, and packaging are properly grounded.
• 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) or the measuring probe is briefly
discharged before measurements are taken with an isolated measuring device (for
example, touching a bare metal housing).
Chassis Power Units Liquid Cooled
SINAMICS S120 Equipment Manual, Edition 12/2007, 6SL3097-2AM00-0BP4
Foreword
III