magic smoke escaped from my chinese VFD

[Christian Knuell]

Hi,

both 16A fuses tripped.

Why "both"?
2.2kW VFDs usually have 230V single phase input.
If 2 fuses on 2 different phases trip you've connected 400V instead of 230 and this will kill the VFD.

Christian

[EddyCurrent]

Where it says, Pb , that's the 3 phase bridge rectifier off the incoming supply. It looks like the negative PCB track for the DC link has suffered, or the rectifier terminals have shorted because of moisture or something on the PCB.

[paulus.v]

Whats the full model number of the vfd ?

I think it is HY02D223B.

The wires seem to be ok. I have nice Igus cables.

If down time is important then buy a decent VFD now and keep the replacement for a spare.

Could you recommend a decent VFD? After this incident I do not want to deal with Chinese stuff any more.

If 2 fuses on 2 different phases trip you've connected 400V instead of 230 and this will kill the VFD.

I have only 230V single phase. I have one fuse in the CNC electronics enclosure and one in the workshop general fuse panel.

Where it says, Pb , that's the 3 phase bridge rectifier off the incoming supply. It looks like the negative PCB track for the DC link has suffered, or the rectifier terminals have shorted because of moisture or something on the PCB.

The circled thing exploded violently. I cannot read the part number on it.





Thank you all

[irving2008]

that "thing" is one of the output MOSFETs, there should be 6 in total, 2 per motor phase...

[Wobbin]

Looking at that I'd not be suprised to find that the optoisolator that drives the Mosfet's gate terminal will have been toasted too. I'd definitely be sending that straight back.

Cheers
Robin

[paulus.v]

Any thoughts about this inverter? Is it a good/ better replace?

Is the Hitachi inverter any better?

Thanks

[Tom J]

Can be control panel removed from inverter and used remotely with cable?
...if yes what kind of connection is used please?