Motor-side power components
6.2 Chassis
AC Drive
Manual, (GH6), 04/2014, 6SL3097-4AL00-0BP4
235
Sinusoidal filter
6.2.2.1
The sine-wave filter at the output of the Power Module supplies voltages that are virtually
sinusoidal at the motor, thereby enabling standard motors to be used without shielded cables
and without the need to reduce the power. Non-shielded cables can be used and, if long
motor supply cables are used, no additional motor reactors are required.
Sine-wave filters with a power rating of up to 200 kW are available
The pulse frequency of the Power Modules must be set to 4 kHz for the sine-wave filters.
This reduces the output current of the Power Module, see Chapter Characteristics
(Page 174).
When a sine-wave filter is used, the available output voltage decreases by 15%.
Safety instructions for sine-wave filter chassis format
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 sinus filters, use touch protection according to IPXXA or corresponding to the
local installation regulations.
Danger of fire through overheating for insufficient ventilation clearances
Insufficient ventilation clearances result in overheating with danger to persons as a result of
smoke and fire. Further, increased failures can occur and the service life of units/systems
shortened.
• It is essential that you maintain 100 mm ventilation clearances above and below the
component.
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