Wiring and Fitting
5-3
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
24 VDC supply
The following table tells you what you have to do with regard to the 24 VDC supply.
With ...
Pay attention to ...
Buildings
Outdoor lightning
protection
Take lightning protection
precautions
24 VDC supply lines,
signal lines
Indoor lightning
protection
(for example, lightning
conductors)
24 VDC supply
Safe (electrical) isolation of extra-low voltage
Protection against outside electrical influences
The following table tells you what to do to provide protection against electrical
influences or faults.
With ...
You must ensure that...
All plants or systems in
which the ET 200S is
integrated
The plant or system is connected to a protective
conductor for diverting electromagnetic interference.
Supply, signal, and bus
lines
The wiring arrangement and installation are correct.
Signal and bus lines
Any break of a line or conductor does not result in
undefined states of the plant or system.
5.2
Operating the ET 200S on a grounded supply
In this section, you will find information on the overall setup of an ET 200S
distributed I/O system on a grounded supply (TN-S system). The specific subjects
discussed are:
•
Circuit-breaking devices, short-circuit and overload protection in accordance
with DIN VDE 0100 and DIN VDE 0113
•
Load power supplies and load circuits
Definition: Grounded mains
In a grounded supply, the neutral conductor of the system is grounded. A mere
ground fault between a live conductor and ground or a grounded section of the
plant causes the protective devices to trip.
Содержание SIMATIC ET 200S
Страница 42: ...Product Overview 1 16 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 64: ...Brief Instructions on Commissioning ET 200S 2 22 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 112: ...Configuration Options 3 48 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 232: ...Commissioning and Diagnostics 6 72 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 244: ...General Technical Specifications 7 12 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 274: ...Interface Modules 8 30 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 538: ...4 IQ SENSE 13 18 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 564: ...Address Space of the Input and Outputs of the ET 200S C 4 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 574: ...Response Times D 10 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 580: ...Special Measures for Interference Free Operation F 4 ET 200S Distributed I O System EWA 4NEB 780602402 12 ...
Страница 600: ...Product Information on the Use of subassemblies modules in a Zone 2 Hazardous Area 2 A5E00352937 02 ...