Safety Information - Siemens SINAMICS S120 Equipment Manual

Components of the Basic infeed
A Basic Infeed comprises a Basic Line Module and an external line connection, which
comprises a line filter and a line reactor.
Operating principle
One or more Motor Modules can be connected to the power supply network via the Basic
Line Module. The Basic Line Module provides the DC link voltage for the Motor Modules.
The Basic Line Module is suitable for direct operation both on TN and on IT and TT systems.
3.2.2

Safety information

A hazardous voltage will be present in the component for a further 5 minutes after all
voltage supplies have been disconnected. Work cannot be carried out until this time has
elapsed.
Before starting work, you should also measure the voltage after the 5 minutes have
elapsed. The voltage can be measured on DC link terminals DCP and DCN.
The DC link discharge time hazard warning must be affixed to the component in the
relevant local language.
NOTICE
The cooling clearances above, below, and in front of the component, which are specified in
the dimension drawings, must be observed.
Basic Line Modules discharge a high leakage current to the protective ground conductor.
Due to the high leakage current associated with Basic Line Modules, they or the relevant
control cabinet must be permanently connected to PE.
According to EN 61800-5-1, Section 6.3.6.7, the minimum cross-section of the protective
ground conductor must conform to the local safety regulations for protective ground
conductors for equipment with a high leakage current.
Chassis power units
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
WARNING
CAUTION
DANGER
Line Modules
3.2 Basic Line Modules
73