degdrive DGI900, User Manual, Page: 43 / 251

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(2) Noise Suppression Methods
Path Noise suppression methods
② If a closed loop is formed between the peripheral equipment and the inverter
wiring,the grounding leakage of the inverter will misoperate the equipment.
Solution: Remove the grounding of the peripheral equipment.
③ When peripheral equipment share the same power source with the inverter, the
noise transmitted through the power line may misoperate the peripheral
equipment.
Solution: Mount a noise filter at inverter input side or isolated the peripheral
equipment with an isolated transformer or power filter.