[btharmy]

I think I figured it out.

This is a new, floor model, band saw in a CNC machine shop. No nameplate on the machine at all.

Label on the VFD:

Label on the control xfmr:

Label on the motor:

Cord and plug supplied with the machine:

Is there another cause I am missing?

 

[seabee41]

Nice plug

 

[rrolleston]

Harbour Freight?

 

[Ultrafault]

It looks like it needs 220 volt and is supplied with a 120 volt plug. Call the manufacturer and ask them why. I am assuming there is no listing for this machine. Are you ok with that?

 

[btharmy]

It looks like it needs 220 volt and is supplied with a 120 volt plug. Call the manufacturer and ask them why. I am assuming there is no listing for this machine. Are you ok with that?

No skin off my back. The fact that there is no nameplate on the machine was my first clue I was dealing with "Far East" craftsmanship. I intentionally show the mfg name in the pic with the cord & plug. I looked it up online and the wiring diagram is for 3 phase!?

 

[drspec]

..........

 

[McDaniel8402]

I'm not sure if I'm gathering the whole picture or not, but it looks like a VFD that uses single phase input with a 3-phase output. That little control power transformer has 3 leads on the input. Terminal 3 is common, terminal 2 is a 220V tap, terminal 1 is a 380V tap. Other than the fact that we don't typically have 220V-to-ground on a single phase supply in the USA, I don't see the issue. Keep in mind that while our typical single phase to ground voltages are either 120, 208 (for a grounded delta), or 277, that is not so in other countries.

 

[daveEM]

No listing, no connection, no problem. Collect service call cheque.

 

[That_Dude]

Found the problem. :whistling2::laughing:

 

[Edrick]

Every one of those photos screams cheap ass Chinese ****

 

[FlyingSparks]

View attachment 33289
Found the problem. :whistling2::laughing:

I think the real problem was it was DESIGNED in China. :laughing:

 

[Big John]

Take your Kleins and twist the hot prong sideways. Problem solved.

 

[That_Dude]

Rule of thumb, if you can't pronounce the manufacturer's name, you're going to have a bad time. :whistling2:

 

[papaotis]

those #s on the name plates dont add up right to me.:001_huh:

 

[someonespecial]

The CE markings are not the listing mark you think it is either

"In recent years we’ve got used to the fact that if a product bears CE mark, it is safe. The reason for this assumption is the goods’ compliance with EU standards. Unfortunately, there exists a much similar mark which the majority of consumers and even sellers understand as CE mark of the European Union. However, this mark symbolizes something quite different. This mark means that the product was manufactured in China, and means “China Export”. This similarity is not a chance coincidence. It expresses the aggressive approach and is used to confuse European consumers.

The China Export mark is not registered, it does NOT confirm positive test results and is placed by Chinese manufacturers arbitrarily."

 

[rrolleston]

Take your Kleins and twist the hot prong sideways. Problem solved.

Could always wire up a regular receptacle 240 and call it the magic smoke machine.

 

[daks]

In Canada we have to have those China Export machines inspected also before they are allowed to be put in service, and it's not uncommon for the inspector to require some "rework"/replacement of some of the undersize wiring in them or repaired/installed bonding jumpers etc. The Chinese standards for safety and reliability need some "tweaks". (boy was it hard not to go into a rant about their crap). Well the nameplate vs the power cord will give you an idea how well it was "engineered" for the North American market.

They'll pull about 10-13% more amps then what they list on the nameplate when you run them at 208V. A Chinese VFD though... (shiver). LOL wait till they need replacement parts, they'll realize they did not save anything in the long term unless there is a North American dealer that is well stocked.

 

[ponyboy]

In Canada we have to have those China Export machines inspected also before they are allowed to be put in service, and it's not uncommon for the inspector to require some "rework"/replacement of some of the undersize wiring in them or repaired/installed bonding jumpers etc. The Chinese standards for safety and reliability need some "tweaks". (boy was it hard not to go into a rant about their crap). Well the nameplate vs the power cord will give you an idea how well it was "engineered" for the North American market. They'll pull about 10-13% more amps then what they list on the nameplate when you run them at 208V. A Chinese VFD though... (shiver). LOL wait till they need replacement parts, they'll realize they did not save anything in the long term unless there is a North American dealer that is well stocked.

Really? What about gigantic manufacturing plants worth multi millions? Not saying I use it to get away with stuff but there is no way in hell an inspector is coming into our plant to look at a new machine. They get called in when we add new services and that's it. If they see something while they're there we'll let them look a little but only to satisfy their curiosity. Everything done is to code but ain't nobody inspecting our stuff

 

[daveEM]

Everything done is to code but ain't nobody inspecting our stuff

The Canadian Electrical Code says we don't hook up anything unless it's approved.

The NEC is different? If it's not then you aren't doing everything to code are you?

 

[ponyboy]

The Canadian Electrical Code says we don't hook up anything unless it's approved. The NEC is different? If it's not then you aren't doing everything to code are you?

Haha guess not. I'll bring it up next time I'm in moline.