Huanyang 220V 2.2kW VFD grounding and EMI issues

[Aiph5u (Aiph5u (not affiliated with Onefinity))]

Hey Warren,

@Cryptonym

The other more challenging way to attach the shield to the aviation connector is by carefully stripping everything to millimeter accuracy and clamping the bare shield under the half clip that secures the cable while connecting the 3 hot wires, but this is a weaker mechanical connection, but a 360 degree shield. This uses the metal body of the plug to tie the spindle body to the cable shield. Ideally the plug assembly is swapped out for a larger plug with a grounding gland included.

In fact these “aviation” connectors found on cheap chinese spindles are no power connectors, I always wonder how they get the spindle cables into it.

Thanks for explaining how you managed this.

I am glad that the connector of my spindle is a Phoenix M17. It suits 1/2″ thick cables like the LAPP ÖLFLEX® CLASSIC FD 810 CY or IGUS chainflex® in shielded 4 x 2.5 mm² (~13 AWG/4) gauge, and the contacts are crimped .

@Cryptonym

I don’t recommend novice try this.

I totally agree with you, that’s why I always recommend these nice Spindle cables for chinese spindle/VFD kits, ready to use. They obviously use heat shrink tube to strengthen the mechanical connection / strain relief

When I think how many people try to solder these “aviation” connectors and it’s the first time they solder, it makes me feel sick, and when I think they also may have the PE pin not connected inside the spindle …