Advantech RS-485 Manuel d'utilisateur télécharger pdf (Page 336)

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101

F-4 ADAM-5000

Grounding Reference

1.2 The Frame Ground and Grounding Bar

Figure F-2: Grounding Bar.

According to previous description, the grounding is the most impor-

tant issue for our system. Just like ‘Frame Ground’ of the computer,

this signal offers a reference point of the electronic circuit inside the

computer. When we want to communicate with this computer, not only

‘signal ground’, but also ‘frame ground’ should be connected to make

a reference point of each other’s electronic circuit. Generally speaking,

it’s necessary to build a individual grounding bar for each system,

such as computer networks, telecommunication networks, power

system, . . . , etc. Those individual grounding bars not only provide the

individual reference point, but also make the earth as a real ground!

Neutral is the physical cable from Generator.

Ground is the local physical cable that connected to

Ground Bar.

110V

220V

Single Phase, Three Line

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Advantech RS-485 Manuel d'utilisateur Page 336

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