Safety Information - Siemens SINAMICS S120 Equipment Manual

5.5.2

Safety information

Danger
Risk of electric shock. A hazardous voltage is present for 5 minutes after the power supply
has been switched-off.
It is only permissible to open the protective cover after this time has expired.
Warning
When opening the protective cover for the DC link, you must activate the release. A suitable
tool (e.g. screwdriver) must be used for this purpose.
The components must only be operated when the protective cover of the DC link is closed.
Damaged components must not be used, otherwise this could result in secondary damage
or accidents.
Caution
The Voltage Clamping Module conducts a high leakage current via the functional ground.
This means that a permanent PE connection must be provided for the cabinet (PE) rail.
Measures according to EN 61800-5-1 must be taken (e.g. PE conductor (≥10mm
an additional connection terminal for a PE conductor with the same cross-section as the
original PE conductor).
Notice
It is not permissible to use a green/yellow cable for the functional ground of the Voltage
Clamping Module.
The Voltage Clamping Module includes capacitors that are connected with respect to the
functional ground. This is the reason that when carrying-out a high-voltage test in the
system, the components must be disconnected from the functional ground.
Caution
The DC link discharge voltage hazard warning must be affixed to the modules in the local
language.
A set of labels in 16 languages is available under Order No.: 6SL3166-3AB00-0AAx.
Notice
The 80 mm clearances above and below the components must be observed.
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3
DC link components Booksize
5.5 Voltage Clamping Module
Cu) or fit
2
5-27