VFD advice.

[Voi]

Need a VFD to run a three phase edge bander. Do not need speed control or control over forward/reverse.

We have 220V single phase and 480/277 three phase available. Would prefer to use the 220V single phase.

Edge bander specs.

220V

Three phase

60 Hz

3.3 total horsepower

1.1 single largest horsepower

Appreciate any product recommendations.

 

[speed bump]

I'm happy with the two TECO VFDs I have in that size. I haven't tried them but I have heard a lot of good things about the automation direct ones as well.

If you don't need speed control or direction what do you need a VFD for? If it's just for voltage the motor may be able to be rewired for 480v or you might explore a little transformer.

 

[tool_scrounge]

It sounds like there are multiple motors? +1 on the step-down transformer then.

 

[laser3kw]

It sounds like there are multiple motors

OP - is this the case?
if so, do they all run at once or only a single motor at a time?
inquiring minds need to know

 

[PoorUB]

You can run multiple motors from one VFD. You do not want any motor disconnects between the VFD and motor. If you are fine with running both motors the same speed and on together one VFD will do it. If not you will need a VFD for each motor.

You might want a rotatory phase converter instead.

 

[yyc_ranger_4x4]

More than likely your edge bander will have relays, timers, etc as well as a glue pot heater. I wouldn't power the entire unit from the VFD. The actual loads within the edge bander unit will vary.

You can run multiple motors from a single VFD, and usually there are overload relays wired for each motor to stop them incase there is an overload situation. The contacts on those relays will trip the VFD on a fault to stop....otherwise if you set the VFD for a combined load of all motors, then one motor could draw way more than it's supposed to.

Wire it for high voltage, or grab a step up/down transformer for proper operation.

 

[seber]

I suspect a three phase transformer will be more than a VFD. I have run two separate machines from one VFD for years. Just don't turn one on or off while the VFD is active. You can use the relay contacts to make it work. I currently have a Delta, a Teco and a Mitsubishi. The Delta is ****. The Teco is OK but noisy. The Mistubishi is a dream. I previously had a Toshiba. It was also excellent. Check the surplus distributors online for high end VFDs at Teco prices.

 

[jar944]

Step down the 480v. You can't run a edge bander on a vfd.

Or run a rpc off your 220v single phase.

 

[Renegade1LI]

Do you have a pic of the nomenclature plate?

 

[Voi]

Sorry, wasn't getting email notifications.

Tried attaching pictures of the plate but having trouble. I'll try again later.

[Edit] See post below.

 

[Voi]

 

[speed bump]

Based on 30 seconds of googling you probably want a step down transformer or see if you get lucky and your current transformer has a 240v tap.

 

[American Locomotive]

As others mentioned, you cannot run that machine from a VFD. VFDs are for motors, and motors only.

That machine has a few other things going on that will need their own power. Additionally, VFDs don't tolerate the load being connected/disconnected. You'd have to completely gut all of the machine's wiring, get 3 separate VFDs (since the machine's multiple motors don't all run at the same time), and re-work all of the controls to go through their respective VFD, and then figure out how to get power to the hotmelt glue mechanism as well. It'd be a huge undertaking.

Your best options will be a rotary phase converter or just get a transformer. The transformer would be your best bet, IMO. 480v > 208/240v 3-phase transformers are readily available and not too expensive in the size class you would need (4 kVA)

 

[Augus7us]

A vfd by design is meant for variable speed control. You want something like a solid state converter that just supplies a constant voltage and frequency. They are also cheaper.

Look up phase o matic. I use one on my surface grinder.

 

[American Locomotive]

"Solid state"/static phase converters would not be appropriate for this application.

 

[Andinoag]

Need a VFD to run a three phase edge bander. Do not need speed control or control over forward/reverse.

We have 220V single phase and 480/277 three phase available. Would prefer to use the 220V single phase.

Edge bander specs.

220V

Three phase

60 Hz

3.3 total horsepower

1.1 single largest horsepower

Appreciate any product recommendations.

Hello friend,,, how are you?
I would like to know how you resolved the issue of connecting your edgebander.
I purchased a Cehisa and I am in the same situation as you.
I thought that the VFD would work, but you guys are right. When I connect the resistor to heat the glue, the machine turns off and displays an Output phase loss error.
Thank you for your attention.

 

[Voi]

Hello friend,,, how are you?
I would like to know how you resolved the issue of connecting your edgebander.
I purchased a Cehisa and I am in the same situation as you.
I thought that the VFD would work, but you guys are right. When I connect the resistor to heat the glue, the machine turns off and displays an Output phase loss error.
Thank you for your attention.

We were able to sell it & get a different machine. Never tried the transformer idea.

 

[Andinoag]

We were able to sell it & get a different machine. Never tried the transformer idea.

Cool.
Thanks for responding.
I think that's the same direction I'll have to take.

 

[RTM]

VFDs are for motors, and motors only

When I connect the resistor to heat the glue, the machine turns off and displays an Output phase loss error

I suspect that the above quote is part of your problem. Controls should not come off the VFD, doubt heaters should either. You may need to feed it two separate legs, pull the control off one leg before the VFD, I think.