Safety Information - Siemens SINAMICS S120 Equipment Manual

Line Modules
3.4 Active Line Modules
3.4.2

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.
CAUTION
In a supply system without regenerative capability (e.g. diesel generator), the regenerative
feedback capability of the Active Line Module must be deactivated in the relevant
parameter (see Description of Functions). The braking energy must then be dissipated via
an additional Braking Module with a braking resistor in the drive line-up.
Active Line Modules discharge a high leakage current to the protective ground conductor.
Due to the high leakage current associated with Active 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.
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WARNING
CAUTION
DANGER
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
Chassis power units