ET/EP/EH Series Intelligent Flexible Driver Manual
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Appendix A EMC Installation Guide for the
Inverter
This appendix introduces the EMC design and installation guide for the inverter from the aspects of
noise suppression, wiring requirements, grounding, surge absorption of external equipment, current
leakage, installation area division and installation precautions, power filter use, radiation noise
treatment, etc., for the reference of inverter users.
A.1 Noise suppression
The working principle of the inverter determines that it will produce certain noise. Its influence on
peripheral equipment is related to type and propagation path of noise, and design, installation, wiring
and grounding of transmission system.
A.1.1 Type of noise
Type of noise is shown in Figure A-1.
Figure A-1 Schematic Diagram of Noise Types
A.1.2 Propagation path of noise
Propagation path of noise is shown in Figure A-2.
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