Installing; Emc-Compliant Installation Of A Machine Or System - Siemens SINAMICS G120 Operating Instructions Manual

Installing

4.1

EMC-compliant installation of a machine or system

The inverter is designed for operation in industrial environments where strong electromagnetic
fields are to be expected.
Reliable and disturbance-free operation is only guaranteed for EMC-compliant installation.
To achieve this, subdivide the control cabinet and the machine or system into EMC zones:
EMC zones
Figure 4-1
Inside the control cabinet
● Zone A: Line supply connection
● Zone B: Power electronics
Devices in Zone B generate energy-rich electromagnetic fields.
● Zone C: Control and sensors
Devices in Zone C do not generate any energy-rich electromagnetic fields themselves, but
their functions can be impaired by electromagnetic fields.
Outside the control cabinet
● Zone D: Motors, braking resistors
Devices in Zone D generate electromagnetic fields with a significant amount of energy
Converter with the CU250S-2 Control Units
Operating Instructions, 04/2018, FW V4.7 SP10, A5E31759476B AG
Example of the EMC zones of a plant or machine
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