3-4
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
The following table shows the points that you have to take into account in
respect of the 24 VDC supply.
With ...
Pay Attention to...
Buildings
Outdoor lightning
protection
Take lightning protec-
tion precautions – for
l
li ht i
24 VDC supply lines,
signal lines
Indoor lightning protec-
tion
p
example, lightning
conductors
24 VDC supply
Safe (electrical) isolation of extra-low voltage
The following table shows you the items you have to take into account in
respect of protection against electrical phenomena or faults.
With ...
Pay Attention to:
Any plant or system in
which the ET 200L is
installed
Is the plant or system connected to a protec-
tive conductor for diverting electromagnetic
interference?
Connecting leads, signal and
bus lines
Are the wiring arrangement and installation
correct?
Signal and bus lines
Any break of a line or conductor must not
result in undefined states of the plant or sys-
tem.
24 VDC Supply
Protection Against
External Electrical
Phenomena
Wiring
Содержание Metro 21 M216KA
Страница 18: ...xviii ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c Contents ...
Страница 34: ...1 16 ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c Product Overview ...
Страница 56: ...2 22 ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c Installation ...
Страница 86: ...4 6 ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c Commissioning ...
Страница 102: ...5 16 ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c Diagnostics g ...
Страница 112: ...6 10 ET 200L ET 200L SC and ET 200L SC IM SC Distributed I O Device EWA 4NEB 780 6009 02c General Technical Data ...