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

Line Modules Booksize

3.4 Smart Line Modules (5 kW and 10 kW) with internal air cooling

3.4 Smart Line Modules (5 kW and 10 kW) with internal air cooling
3.4
3.4.1

Description

The Smart Line Module (SLM) is an unregulated line infeed/feedback unit. The SLM supplies
the Motor Module(s) with an unregulated DC voltage at the DC output. As regards the
current and voltage waveform, the SLM in infeed mode exhibits the typical characteristic of a
6-pulse diode rectifier jumper.
In feedback mode, the current waveform is square waved. Feedback can be deactivated by
means of a terminal because these Smart Lines 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.
3.4.2

Safety Information

Danger
Risk of electric shock. A hazardous voltage is present for up to 5 minutes after the power
supply has been disconnected.
The protective cover may only be opened after this time has expired.
Warning
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, otherwise this could result in secondary damage
or accidents.
Warning
A sufficiently high system fault level is required for tripping the fuses within the predefined
time in the event of a ground fault. If the system fault level is too low, the fuse rupture times
increase to an unacceptable level (e.g. fire is possible).
3-42
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3