Siemens SINAMICS G120, Installation Manual

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Installing
3.2 EMC-compliant installation of a machine or system
Power Module PM240-2
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Hardware Installation Manual, 01/2020, A5E33294624B AL
3.2 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 3-1 Example of the EMC zones of a plant or machine
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