Overview

Design

In industry, the interference immunity of the devices must be very high, whilst lower demands are made on emitted interference.

The SIMOREG converters are components of an electrical drive, as are contactors and switches. Skilled personnel must integrate them in a drive system comprising at least the converter, motor cables and the motor. Commutating reactors and fuses are usually also needed.

Proper installation thus also determines whether or not a limit value will be met. To limit the emitted interference according to limit value “A1”, at least the corresponding radio interference suppression filter and the commutating reactor are also needed in addition to the converter. Without a radio interference suppression filter, the emitted interference of the SIMOREG converters exceeds limit value “A1” of EN 55011.

If the drive is part of an installation, it need not initially meet requirements relating to emitted interference. However, the EMC legislation requires that the entire installation be electromagnetically compatible with the environment.

If all the control components of the installation, such as automation equipment, exhibit industrial grade interference immunity, there is no need for each drive to satisfy limit value “A1”.