Installing/Mounting; Emc-Compliant Installation Of A Machine Or System - Siemens SINAMICS G120 Hardware Installation Manual

Installing/mounting

4.1

EMC-compliant installation of a machine or system

The converter is designed for operation in industrial environments where strong
electromagnetic fields are to be expected.
Reliable and disturbance-free operation is only ensured 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
PM250 Power Module
Hardware Installation Manual, 04/2021, A5E36265179B-AB
Example of the EMC zones of a plant or machine
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