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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 "Regulations on the Instal-
lation of Power Circuits with nominal
voltages below 1000V" or the appropri-
ate 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.
Section 12.1
Run input, output and supply lines sepa-
rately, and not parallel to each other.
All input and output lines that are not
connected to the supply network must
be laid out as shielded and twisted
cables. The shielding must be grounded
to the earth potential on the instrument
side.
4 Electrical connection
compatibility
(EMC)
Earth the instrument at terminal PE 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.
The instrument must be provided with
external fusing and disconnection. De-
pending on the supply voltage, the fol-
lowing fuse values apply for the external
fusing:
20 — 53V AC/DC, 48 — 63Hz
fuse 5A slow
93 — 263V AC, 48 — 63Hz
fuse 5A slow
15
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