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● Category C3:
PDS for rated voltages < 1000 V - only for operation in the "second environment".
● Category C4:
PDS for IT line supplies for operation in complex systems in the "second environment".
An EMC plan is required.
6.8.1
Converter applications
Converters involve equipment used on a professional basis, deployed in certain areas of
business and industry - and are not operated in the general public domain.
For an EMC-compliant installation, observe the information provided in the Configuration
manual:EMC installation guideline
(http://support.automation.siemens.com/WW/view/en/60612658).
The devices described there are intended for operation in the first and second environments.
Conditions for operation in the respective environment are subsequently listed.
6.8.1.1
Operation in the second environment
Interference immunity
You do not have to take any additional measures regarding interference immunity.
Interference emission - operation in the second environment, Category C2
The drive system must comply with the following conditions in order to comply with the limit
values of the second environment, Category C2:
● The drive system is installed by appropriately qualified personnel in compliance with EMC
regulations - and the installation notes provided in the manual.
● You use a shielded motor cable with low capacitance.
● The pulse frequency is not higher than the value set in the factory.
● The drive system is connected to a TN or TT system.
● The permissible motor cable length is complied with.
● A converter with an integrated line filter is being used.
Converters with integrated line filters comply with the requirements of the second
environment, Category C2 with reference to interference emission.
● If you use converters without integrated filters, then you are responsible for verifying that
the interference emission is limited.
You can use a dedicated radio interference suppression filter for each converter, or a
common filter for multiple converters.
Power Module PM240P-2
Hardware Installation Manual, 06/2020, A5E37800827C AD
Length of the motor cable (Page 42).
6.8 Electromagnetic compatibility of variable-speed drives
Technical data
73
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