Installation
8.
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Ref.1912
DDS
HARDWARE
8.1 Location
The type of considerations to bear in mind when placing the DDS system and
run the cables must be:
Environmental
Mechanical
Climatic
Electrical
Ventilation related
Environmental considerations
It must be installed where:
There are neither corrosive gasses nor explosives.
The atmospheric conditions are favorable.
It is not exposed to oils, water, hot air, high humidity, too much dust or
metal particles suspended in the air.
Mechanical considerations
Use the holes and slots prepared for the purpose of fastening the equipment.
Vibrations should be avoided. Where necessary, use shock-absorbing
lanyards. For further detail, see next figure:
MANDATORY. The DDS system that will usually include the external safety
controller is identified as a fixed installation meant to always work inside an
electrical cabinet (enclosure) whose protection degree is IP 54 or greater.
Note that the start button, the E-stop button and other elements may be
installed outside the electrical cabinet (enclosure).
The units must be installed vertically.
Access
to the cabinet must be restricted to qualified maintenance personnel
who must use a key or tool to open the door or barrier, clearly marked with
the corresponding warning signs, as stipulated in sect. 3.5 of IEC 61800-5-1.
NOTE. It is entirely up to the installer to take care of these matters!
F. H8/1
Top and bottom clearance when installing the DDS system for easier heat
evacuation.
MANDATORY. When integrating the unit into the electrical cabinet, make
sure to leave a gap of at least 10 cm (3.93 inches) between it and the top,
bottom and front panel of the cabinet or any other obstacle that obstructs air
flow for easier heat evacuation.
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