Smart Line Modules With Internal Air Cooling; Description - Siemens SINAMICS S120 Manual

Braking duty cycle for Basic Line Modules
Figure 4-62
4.9

Smart Line Modules with internal air cooling

4.9.1

Description

The Smart Line Module is a non-regulated infeed/regenerative feedback unit. The Smart
Line Module supplies the Motor Module with a non-regulated 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. Regenerative feedback can be
deactivated if required. On 5 kW and 10 kW Smart Line Modules, this is realized via a
terminal, since these modules do not feature a DRIVE-CLiQ connection. On 16 kW to 55 kW
Smart Line Modules, regenerative feedback can be deactivated via parameters, as, just like
Active Line Modules, these modules are equipped with a DRIVE-CLiQ connection.
The DC link starts precharging as soon as the line voltage is applied and is independent of
its phase sequence direction. Load can be applied to the DC link after the module has been
enabled.
A line contactor can be installed on the line side if the system has to be electrically isolated
from the line supply.
Smart Line Modules are suitable for direct operation on TN, IT and TT systems. The Line
Modules have an integrated overvoltage protection function.
Booksize Power Units
Manual, (GH2), 07/2016, 6SL3097-4AC00-0BP8
Braking duty cycle for Basic Line Modules
4.9 Smart Line Modules with internal air cooling
Line Modules Booksize
261