Siemens 1PL622, Руководство по эксплуатации

Страница: 12 / 86

Safety information
1.4 ESD-sensitive components
A5E00264365A
10
Siemens AG Operating Instructions 2.02 1PL622
1.4 ESD-sensitive components
ESD guidelines
CAUTION
Electrostatic discharge
Electronic modules contain components that can be destroyed by electrostatic discharge.
These modules can be easily destroyed by improper handling.
To protect your equipment against damage, follow the instructions given below.
● Never touch electronic modules unless absolutely necessary in the course of
maintenance and repair procedures.
● If the modules have to be touched, the body of the person concerned must be
electrostatically discharged immediately beforehand and be grounded.
● Electronic modules should not be brought into contact with electrically insulating materials
such as plastic foil, plastic parts, insulating table supports or clothing made of synthetic
fibers.
● Always place electrostatic endangered assemblies on conductive bases.
● Always store and transport electronic modules or components in conductive packaging
(e.g. metallized plastic or metal containers).
Note
If the modules are to be stored and/or transported in non-conducting packings anyway,
they must be wrapped in conducting materials before doing so. Always use suitable
material for this purpose, for example, conductive foam rubber or household aluminum
foil.
The necessary ESD protective measures for electrostatically sensitive devices are illustrated
once again in the following drawings:
d
f f f f
b
e e
a a a a
c c c
e
b
f
d d
(1) (2) (3)
Figure 1-1 ESD protective measures