Siemens D410 Benutzerhandbuch

 

D410 
Commissioning Manual, 08/2008 Edition 

143

 

ESD guidelines 

B

B.1  ESD definition 

What does ESD mean?  

All electronic modules are equipped with highly integrated modules or components. Because 

of the technology used, these electronic components are very sensitive to overvoltages and 

thus to discharge of static electricity.  
The acronym ESD has become the established designation for such Electrostatic Sensitive 

Devices. The ESD designation is used internationally to refer to electrostatic sensitive 

devices. 
Electrostatic sensitive devices are identified by the following symbol: 

 

Figure B-1 

Symbol for identification of electrostatic sensitive devices 

 

 

CAUTION 

 

Electrostatic sensitive devices can be irreparably damaged by voltages that are far lower 

than anything a person can perceive. These voltages occur if you touch a component or the 

electrical connection of a module without having previously discharged any static from your 

body. Any damage that occurs to a module as a result of overvoltage is generally not 

recognized immediately and only comes to light after the equipment has been operating for 

some time. 

 

B.2  Electrostatic charging of individuals 

Any person who is not conductively connected to the electrical potential of the environment 

can accumulate an electrostatic charge.