Smart Line Modules (5 Kw Und 10 Kw) With External Air Cooling; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

Line Modules Booksize

3.8 Smart Line Modules (5 kW und 10 kW) with external air cooling

3.8 Smart Line Modules (5 kW und 10 kW) with external air cooling
3.8
3.8.1

Description

The Smart Line Module is an unregulated infeed/regenerative feedback unit. The Smart
Line Module supplies the Motor Module(s) with an unregulated DC voltage at the DC
output. In the infeed mode the Smart Line Module exhibits the typical current and voltage
waveforms of a 6-pulse diode rectifier bridge.
In feedback mode, the current waveform is square waved. Feedback can be deactivated by
means of a terminal because these Smart Line Modules are not equipped with a DRIVE-
CLiQ connection.
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.
Smart Line Modules are suitable for direct operation in TN, IT, and TT systems. The Line
Modules have an integrated overvoltage protection function.
External air cooling uses the "through-hole" method. This is a cooling method for
SINAMICS power units that is only available for booksize devices. The power unit and its
heat sink can be inserted in a rectangular knockout at the rear of the control cabinet and
mounted with a seal. The heat sink and the fan (included in the scope of supply) project
beyond the rear of the control cabinet and the heat is dissipated outside the control cabinet
or in a separate air duct.
3.8.2

Safety information

Risk of electric shock. A hazardous voltage is present for up to 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 unlocking.
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 any further. Otherwise this could result in
secondary damage or accidents.
294
DANGER
WARNING
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6
Booksize power units