Device description
elrest
Automationssysteme GmbH
e
VISIO PTE715_Windows.EN
Page: 21
2.2.4
EGB / ESD- guidelines
2.2.4.1
What means EGB/ ESD
Nearly all modern modules are equipped with highly integrated chips or components in MOS technology.
These electronic components are very sensitive to overvoltage and therefore to electrostatic discharge.
The international abbreviation for ESD means Electrostatic Sensitive Device.
This symbol is on cabinets, subtracks, or packing boxes and indicates the use of electrostatically sensitive
devices and thereby sensitivity by touching the devices:
EGB /ESD sensitive components may be damaged by energies and voltages that are below the limit of
human perception. This kind of voltages occurs
when somebody, which is not electrostatically discharged,
touches a module/chip/component. In most of the cases, the components exposed to such overvoltages
can not immediately be detected as defective. Only after long operating of the device may an error occur.
An installation that conforms to EMC requirements as well as the use of interferencefree cables
represents a basic requirement in ensuring trouble-free operation.
The directives for interference-free installation of your device also apply for the installation of the HMI
device.
2.2.4.2
Protective measures against static charge
The most plastics are hard chargeable and therefore must be kept away from ESDs!
Ensure that operators, work area, and packaging have proper grounding when working with ESDs!
