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6ES7901.0BF00.0AA0 参数 Datasheet PDF下载

6ES7901.0BF00.0AA0图片预览
型号: 6ES7901.0BF00.0AA0
PDF下载: 下载PDF文件 查看货源
内容描述: SIMATIC HMI触摸屏TP 070 [SIMATIC HMI Touch Panel TP 070]
分类和应用:
文件页数/大小: 80 页 / 400 K
品牌: SIEMENS [ Siemens Semiconductor Group ]
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C
ESD Guidelines  
What does ESD mean?  
Virtually all present-day modules incorporate highly integrated MOS devices or  
components. For technological reasons, these electronic components are very  
sensitive to overvoltages and consequently therefore to electrostatic discharge:  
These devices are referred to in German as Elektrostatisch Gefährdeten  
Bauelemente/ Baugruppen: ”EGB”  
The more frequent international name is:  
”ESD” (Electrostatic Sensitive Device)  
The following symbol on plates on cabinets, mounting racks or packages draws  
attention to the use of electrostatic sensitive devices and thus to the contact  
sensitivity of the assemblies concerned:  
ESDs may be destroyed by voltages and energies well below the perception  
threshold of persons. Voltages of this kind occur as soon as a device or an  
assembly is touched by a person who is not electrostatically discharged . Devices  
exposed to such overvoltages cannot immediately be detected as defective in the  
majority of cases since faulty behavior may occur only after a long period of  
operation.  
Precautions against electrostatic discharge  
Most plastics are capable of carrying high charges and it is therefore imperative  
that they be kept away from sensitive components.  
When handling electrostatic sensitive devices, make sure that persons, workplaces  
and packages are properly grounded.  
TP 070 Equipment Manual  
Release03/00  
C-1  
 
 
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