Line Reactors; Description; Safety Instructions For Line Reactors - Siemens S120 Manual

Mains connection and line-side power components

3.8 Line reactors

3.8 Line reactors
3.8.1

Description

The line reactors limit low-frequency line harmonics and reduce the load on the rectifiers in
the Power Modules. They are used to smooth voltage spikes (line supply faults) or to bridge
voltage dips/interruptions when commutating. This why we recommend line reactors be used
in conjunction with PM240-2, PM340, and Chassis Power Modules.
The line reactors for the PM340 in frame sizes FSA to FSE are designed as sub-chassis
components.
3.8.2

Safety instructions for line reactors

Danger to life if the fundamental safety instructions and residual risks are not observed
The non-observance of the fundamental safety instructions and residual risks stated in
Chapter 1 can result in accidents with severe injuries or death.
• Observe the fundamental safety instructions.
• Consider the residual risks for the risk evaluation.
Danger to life due to electric shock in the event of missing touch protection
Death or serious injury can result when live parts are touched.
• For the line reactors, use touch protection according to IPXXA or corresponding to the
Danger of fire through overheating for insufficient ventilation clearances
Insufficient ventilation clearances can result in overheating with danger to persons as a
result of smoke and fire. Further, increased failures can occur and the service life of
components shortened.
• Maintain 100 mm ventilation clearances above and below the component.
56
WARNING
DANGER
local installation regulations.
WARNING
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
AC Drive