Safety Instructions With Respect To Control Cabinet Design; Electromagnetic Compatibility; General Information - Siemens SINAMICS S120 Manual

Cabinet design

6.2 Safety instructions with respect to control cabinet design

Safety of machinery - electrical equipment of machines
All information relating to device selection in this section applies to
● Operation on TN and TT line supply systems with grounded neutral point and grounded
protective conductor as well as to IT line supply systems
● Operating voltage range from 3-phase 380 ... 480 V AC ±10 %
6.2 Safety instructions with respect to control cabinet design
Danger of injury caused by foreign objects in the device
Parts (e.g. drilling chips, end sleeves) falling into the device can cause short circuits and
damage the insulation. As a consequence, arcing, a loud bang or parts and components
flying out of the device can cause severe injury.
• Only perform installation and other work when the devices are safely isolated from the
• Cover the ventilation slits during the installation of components in the cabinet and
6.3

Electromagnetic compatibility

6.3.1

General information

Electromagnetic compatibility (EMC) describes – according to the definition of the EMC
Directive – the "ability of equipment to function satisfactorily in its electromagnetic
environment without introducing intolerable electromagnetic disturbances to other equipment
in that environment". To guarantee that the appropriate EMC standards are observed, the
devices must demonstrate a sufficiently high noise immunity, and also the emitted
interference must be limited to acceptable values.
Product standard IEC 61800-3 describes the EMC requirements for "Adjustable-speed
electrical power drive systems". A variable-speed drive system (or Power Drive System -
PDS) consists of a Control Unit, Line Module and Motor Module - as well as the associated
electric motors, encoders and connecting cables. The driven machine is not part of the drive
system.
98
WARNING
power supply.
remove the cover before switching on.
Power Units in Booksize C/D-Type Format
Manual, 12/2018, 6SL3097-5AC20-0BP0