Cashco Siemens PS2 I/P - Manual (Page 48)

Preparing for Operation
48
SIPART PS2 Manual
A5E00074631-01
3.4 Electrical Connection
.
NOTE
Any necessary options modules must be installed before electrical
connection (see chapter 2.5, page 25).
N.B.: The transmission ratio selector can only be set when the
positioner is open. Therefore check this setting before sealing the
controller.
!
WARNING
For the electrical installation, please observe the pertinent regulations,
in hazardous areas particularly the rules and regulations for the
installation and operation of systems in hazardous areas (e.g. in
Germany: Elex V, VDE 0165)
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 3-11,
page 49.
Please bear in mind that this protection can only be effective if you con-
nect at least one of these bushes with grounded fittings by electrically
conductive (blank) mounting parts.