Application planning
4
4.1 Protecting persons from electromagnetic elds
Requirement
WARNING
Negative impact on health from electromagnetic elds
During operation, converters generate electromagnetic elds (EMF). Electromagnetic elds
can have a negative impact on your health and can even cause death.
• As operating company, carefully design workplaces so that workers are protected from
impermissibly strong electromagnetic elds.
• When working close to the converter, carefully comply with the data on electromagnetic
compatibility (EMC) provided in the product documentation.
• Maintain the minimum clearances to the converter.
The converter components are installed according to the EMC guidelines in the technical
documentation:
• The components are operated inside a metal control cabinet.
• The motor connection cables are shielded.
Protection against electromagnetic elds (EMF) is dened in the following guidelines and
regulations, for example:
• European EMF‑Guideline 2013/35/EU
• 26thBImSchV (German Federal Emission Protection Regulations)
Limit values according to ICNIRP2020 for a workplace are the basis for assessing
electromagnetic elds.
Description
To determine the minimum clearance, the electromagnetic eld of the converter was evaluated
as follows:
• At the pulse frequency, e.g. 4kHz
• At a multiple of the pulse frequency up to a maximum of 100kHz
The following tables contain the evaluation of the electromagnetic elds and the minimum
clearances to the converter components.
The minimum clearance is applicable for the head and the entire torso of the human body.
Smaller clearances are possible for extremities.
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 41
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