Control Supply Modules; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

5.4

Control Supply Modules

5.4
5.4.1

Description

The Control Supply Module is a 24 V power supply with 20 A output current.
The output voltage corresponds to PELV (Protective Extra Low Voltage) with grounded
frame.
The power is either supplied via the line supply connection or the integrated DC link
connection. For example, this means that it is possible to maintain the 24 V power supply
voltage when the power fails for coordinated retraction motion.
Input voltage range: 320 - 550 V
When the Control Supply Module is first operated, then the power is always taken from the
line supply. When the power fails, the module automatically changes-over to supply from the
DC link.
5.4.2

Safety Information

Danger
This component is equipped with two supply circuits!
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.
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 (e.g. with a defective lock on the protective cover) must not be
operated further.
Failure to comply with these instructions can result in death or severe injury.
Caution
The DC link discharge time hazard warning must be affixed to the modules in the local
language.
A set of labels in 16 languages is provided with the component.
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
, 430-800 V , (300-430 V
AC DC
DC link components Booksize
5.4 Control Supply Modules
for <1min).
DC
5-19