Active Line Modules With Cold Plate; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

Active line modules with cold plate

5.1

Description

Active Line Modules generate a constant, regulated DC voltage in the DC link from the three-
phase line supply voltage that supplies the connected Motor Modules with power.
This ensures that they are not influenced by network fluctuations.
When the motors are in feedback mode, Active Line Modules supply power back to the
network. The regenerative feedback capability of the modules can be deactivated by
parameterization.
The DC link starts precharging as soon as the supply voltage is applied and is independent
of its phase sequence direction. Load can be applied to the DC link after the modules have
been enabled. An optional main contactor is required for disconnecting the voltage.
Active Line Modules can be directly connected to TN and TT line supplies - both with
grounded neutral point and also with grounded protective conductor; they can also be
connected to IT line supplies. The Line Modules have an integrated overvoltage protection
function.
5.2

Safety information

Risk of electric shock. A hazardous voltage is present for up to 5 minutes after the supply
has been disconnected.
The protective cover may only be opened after this time has expired.
When opening the protective cover for the DC link, you must press the release catch. 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 further. If this is not carefully observed, it can
result in subsequent damage and accidents.
Booksize cold-plate power units
Manual, (GH4), 03.2007, 6SL3097-2AJ00-0BP4
DANGER
WARNING
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