Emc Limit Values In South Korea - Siemens SINUMERIK 840D sl Equipment Manual

Technical specifications
7.2 Secondary electrical conditions
Shielded signal cables
• For safe and fault-free operation of the system, the specified cables must be used.
• For digital signal transmission, the shield must have a conductive connection at both sides
of the housing.
Cable definition
Definition:
• Signal cables (example)
– Data cables (Ethernet, PROFIBUS, sensor cables, etc.)
– Digital I/Os
– Cables for safety functions (emergency stop, enabling)
• Power cables (example)
– Low-voltage supply lines (230 VAC, +24 VDC, etc.)
– Motor cables
Rules for routing cables
In order to achieve the greatest possible EMC compatibility for the complete system (control,
power unit, machine), the following EMC measures must be carefully observed:
• If necessary, signal and power cables may cross one another (if possible at an angle of 90°),
but must never be laid close or parallel to one another.
• Only use cables approved by SIEMENS for the signal lines from and to the Control Unit.
• Signal cables must not be routed close to strong external magnetic fields (e.g. motors and
transformers).
• If signal lines cannot be routed a sufficient distance away from other cables, they must be
installed in grounded cable ducts (metal).
• The operator panel fronts, MCPs, MPPs, and full keyboards must be installed in metallically
enclosed EMC-compatible housings.
Note
For further information on interference suppression measures and the connection of
shielded cables, please refer to the EMC Installation Guide.
7.2.4

EMC limit values in South Korea

36
Operator panel front: OP 010S
Equipment Manual, 12/2022, A5E50751046B AA