Siemens SINUMERIK 840D sl TCU 30.3 Equipment Manual

Cable de󹪝nitions
• Signal cables (example)
– Data cables (Ethernet, PROFIBUS, PROFINET, sensor cables, etc.)
– Digital inputs/outputs
– Emergency Stop cables
• Power cables (example)
– Supply voltage 1 x 230 VAC or 3 x 400 VAC
– Motor cables
Rules for routing cables
In order to maximize noise immunity for the complete system (control, power unit, machine) the
following EMC measures must be observed:
• A minimum distance of 200 mm is to be observed between the signal lines and power cables.
• If necessary, signal and load 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 NCU.
• Signal cables may not be routed close to strong external magnetic 󹪝elds (e.g. motors and
transformers).
• If signal lines cannot be routed a su󹪟cient distance away from other cables, they must be
installed in grounded cable ducts (metal).
More information
You can 󹪝nd more information on interference suppression measures and the connection of
shielded cables here:
• Con󹪝guration Instructions, EMC installation guideline (
https://
support.industry.siemens.com/cs/document/60612658/emc-design-guidelines-
con󹪝guration-manual-01-2012?dti=0&lc=en-WW)
8.2.4 EMF assessments for 24 V components
The 24 V components, e.g. control systems (NCU, MCU, PPU), PCUs/IPCs, operator panels,
handheld terminals and machine control panels do not generate any appreciable
electromagnetic 󹪝elds.
No minimum clearance has to be maintained for 24V components.
Technical data
8.2Supplementary electrical conditions
TCU 30.3
82 Equipment Manual, 03/2023, A5E40874197B AD

Siemens SINUMERIK 840D sl TCU 30.3 Specifications

General

Brand	Siemens
Model	SINUMERIK 840D sl TCU 30.3
Category	Security Sensors
Language	English