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4.1
Notes on installation
The choice of cable, the installation and
the electrical connection of the instru-
ment must conform to the requirements
of VDE 0100 "Regulation on the Installa-
tion of Power Circuits with nominal volt-
ages below 1000V" or the appropriate
local regulations.
Work inside the instrument must only be
carried out to the extent described and,
like the electrical connection, only by
properly qualified personnel.
If contact with live parts is possible when
working on the instrument, it has to be
isolated on both poles from the supply.
Electromagnetic
conforms to the standards and regula-
tions listed under Technical Data.
Run input, output and supply lines sepa-
rately and not parallel to each other.
Sensor and interface lines should be
arranged as twisted and screened
cables. Do not run them close to
current-carrying components or cables.
Earth the screen at one end at the
instrument on terminal PE.
4 Electrical connection
compatibility
(EMC)
Earth the instrument at the PE terminal
to the earth conductor. This line should
have at least the same cross-section as
the supply lines. Earth lines should be
run in a star layout to a common earth
point which is connected to the earth
conductor of the supply. Do not loop the
earth connections, i.e. do not run them
from one instrument to another.
Do not connect any additional loads to
the supply terminals of the instrument.
The instrument is not suitable for instal-
lation in hazardous areas.
Inductive loads in the neighbourhood of
the instrument, such as contactors or
solenoid valves, should be fitted with RC
modules for interference suppression.
13
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