Ambient Climatic And Mechanical Conditions; Test And Requirements Standards - Siemens SINUMERIK 840D sl Manual

Application Planning

2.2 Ambient Climatic and Mechanical Conditions

Rules for routing cables
In order to maximize noise immunity for the complete system (controller, power section,
machine) the following EMC measures must be observed:
● The distance between signal lines and load cables must be maximized.
● If necessary, signal and load cables may cross one another (if possible, at an angle of
● Only cables provided by the manufacturer should be used as signal cables from and to
● Signal cables may not be routed close to strong external magnetic fields (e.g., motors
● Pulse-loaded HC/HV lines must always be laid completely separately from all other lines.
● If signal lines cannot be routed a sufficient distance away from other cables, they must be
● The clearance (interference injection area) between the following lines must be kept to a
2.2 Ambient Climatic and Mechanical Conditions
2.2.1

Test and Requirements Standards

Test standards
Vibratory load
Shock load
Air-conditioning
20
90°), but must never be laid close or parallel to one another.
the control unit.
and transformers).
installed in grounded cable ducts (metal).
minimum:
– Signal line and electrical circuit signal line (twisted)
– Signal line and associated equipotential bonding conductor
– Equipotential bonding conductor and protective conductor (routed together)
Note
For more information about interference suppression measures and connection of
shielded cables, see
References
/EMV/ EMC Installation Guide
EN 60068-2-6
EN 60068-2-27
EN 60068-2-1, EN 60068-2-2, EN 60068-2-14, EN 60068-2-30,
EN 60068-2-31, EN 60068-2-32, EN 60068-2-33, EN 60068-2-34
Manual, 07/2007, 6FC5397-0AP10-2BA0
NCU