Speed control dial does nothing on VFD (SOLVED) & VFD wiring

Hey Alex,

the EMI filter on the input side of a VFD is to protect the house installation and other electrical devices connected to it from the EMI the VFD produces.


– Source: Omron MX2 User’s Manual

What protects the VFD from power distribution system is the input-side AC reactor:
Omron_MX2_Manual__General_Warnings_and_Cautions__PXVII__Effects_of_Power_Distribution_System_on_Inverter