Wiring and Fitting
5-4
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Components and protective measures
Various components and protective measures are prescribed when setting up an
entire plant. The types of component and the degree to which the protective
measures are binding depend on the DIN VDE regulation that applies to your plant
setup. The following table refers to Figure 5-1.
Compare ...
Refer to
Figure 5-1
DIN VDE 0100
DIN VDE 0113
Circuit-breaking device
for PLC, sensors and
actuators
¡
... Part 460:
Main switch
... Part 1:
Disconnector
Short-circuit and overload
protection:
Grouped for sensors and
actuators
©
¢
... Part 725:
Single-pole
protection of
circuits
... Part 1:
•
With grounded secondary
power circuit:
single-pole
protection
•
Otherwise:
all-pole
protection
Load power supply for
AC load circuits with
more than five
electromagnetic devices
©
¢
Isolation by
transformer
recommended
Isolation by transformer
recommended
Safe electrical isolation
Safe electrical isolation must be provided for:
•
Modules that must be operated at the following voltages:
≤
60 VDC or
≤
25
VAC
•
24 VDC operating current circuits
Setting up the ET 200S with ungrounded reference potential
From IM151-1 BASIC (6ES7 151-1CA00-0AB0), IM151-1 STANDARD
(6ES7 151-1AA02-0AB0), IM151-1 FO STANDARD (6ES7 151-1AB01-0AB0),
IM151-1 HIGH FEATURE (6ES7 151-1BA00-0AB0) and IM151-3 PN
(6ES7 151-3AA00-0AB0) the reference potential M connected to the nominal
supply voltage of the IM151-x at the rail (protective conductor) through an RC
combination and so allows an ungrounded layout.
To divert interference current, the reference potential of the IM151-1 is connected
internally to the rail (protective conductor) via an RC combination (R = 10 M
Ω /
C =
22 nF). High-frequency interference currents are thus discharged, and static
charge is prevented.
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 ...