Capacitor Module; Description; Safety Instructions For Capacitor Modules - Siemens Sinamics S120 Manual

DC link components

8.5 Capacitor Module

8.5 Capacitor Module
8.5.1

Description

Capacitor modules are used to increase the DC link capacitance to bridge momentary power
losses.
Capacitor modules are connected to the DC link voltage via the integrated DC link busbars.
Capacitor modules function autonomously.
Several capacitor modules can be operated in parallel.
8.5.2

Safety instructions for Capacitor Modules

Danger to life if the fundamental safety instructions and remaining risks are not carefully
observed
If the fundamental safety instructions and remaining risks in Chapter 1 (Page 25) are not
observed, accidents involving severe injuries or death may occur.
• Adhere to the fundamental safety instructions.
• When assessing the risk, take into account residual risks.
Fire hazard due to overheating because of inadequate ventilation clearances
Inadequate ventilation clearances can cause overheating with a risk for personnel due to
smoke and fire. This can also result in increased failure rates and a shorter service life of
the components.
• Maintain the 80 mm clearances above and below the components.
Note
Maximum permissible DC link capacitance
The Capacitor Module is precharged by the Line Module.
• Observe the respective maximum permissible DC link capacitances of the Line Modules.
552
WARNING
WARNING
Booksize Power Units
Manual, (GH2), 04/2014, 6SL3097-4AC00-0BP6