Electrical Connection - Siemens 6DR55 Series Manual

Preparing for operation
3.4

Electrical connection

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62
NOTE
Any necessary options modules must be installed before electrical
connection (see chapter 2.6, page 31).
N.B.: The transmission ratio selector can only be set when the
positioner is open. Therefore check this setting before closing the
positioner.
WARNING
The specifications of the examination certificate valid in your country
must be observed.
Electrical connection in hazardous areas
Laws and regulations valid in your country must be observed for the
electrical installation in explosions hazardous areas. In Germany these
are for example:
-- Working reliability regulations,
-- Regulations for installing electrical equipment in hazardous areas,
DIN EN 60079--14 (in the past VDE 0165, T1).
-- The certificate of conformity
If the intrinsically safe version is operated with a higher operating
voltage by mistake, the positioner must no longer be used for
intrinsically safe application.
The explosion proof positioner may only be supplied with electrical
power in areas in which the atmosphere may be potentially explosive
when the housing is closed.
The feed--though openings in the explosion proof version for the
electronic connections must be sealed with EEX--d certified cable
glands or EEx--d certified plugs or an ignition lock must be mounted at
a maximum distance of 46 cm (18 inches) when using the
"conduit"--system.
The plastic housing is metal lined to increase the electromagnetic
compatibility (EMC) against high frequency radiation. This screen is
connected electrically to the threaded bushes shown in figure 31, page
63.
The specified noise immunity and noise emission are only ensured if
the bus shield is fully effective.
This includes connecting the shields with the metallic connections of
the positioner with PROFIBUS PA, but also routing the shield to the
terminal boxes, distributors, DP/PA coupler or DP/PA link.
SIPART PS2 PA Manual
A5E00127926--05