Drive Application - Siemens 1LG0 Installation And Maintenance Manual

3.6 Drive Application

Electromagnetic compatibility
In application where the motor is driven by a drive, the degree of electrical interference
depends on the type of drive used (type, number of IGBTs, interference suppression
measures, and manufacturer), cabling, distance and application requirements.
The installation guidelines of the drive manufacturer with regards to electromagnetic
compatibility must be considered at all times during the design and implementation
phases.
In applications when motor torque is variable (piston-
type compressor, load for example), the inevitable
result is a non-sinusoidal motor current, whose
harmonics can lead to excessive system perturbation or
excessive electromagnetic interference.
If the motor is driven by a drive and the, operating
speed exceeds synchronous speed then considerations
must be give to the mechanical components and
transmission coupling.
Please refer to IEC 60034-1 for further details.
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