Show us your VFD conversions/installations

[RonRock]

Here is the manual,

http://dealerselectric.com/images/Products/teco/fm50_instruction_&_user_manual.pdf

Pages, 11 & 13 have the power and breaker specs.

The breaker specs show a 20 A breaker with 14 gauge wire.

I have single phase incoming line power.

 

[RonRock]

Thanks Greg9504 for taking a look at my issue. I have already ran 12 gauge Romex to the area, but I don't want to terminate it until I am sure it is correct.

 

[454ragtop]

Thanks Greg9504 for taking a look at my issue. I have already ran 12 gauge Romex to the area, but I don't want to terminate it until I am sure it is correct.

12 gauge will be fine, and I'm surprised the manual said 14, usually only use 14 with 15 amp circuits.

 

[Ksmith7711]

Hi people

 

[laser3kw]

Hi people

Please, call us "El Conquistador"
and what makes you think we are "people" here in the Matrix?

 

[nine4gmc]

I need some assistance with mine if you guys don't mind. I have 120v at each of my line in from a dual 30a breaker when the vfd is off but when I turn the vfd on, the voltage fluctuates wildly. This is my first time using a vfd or 3 ph motor so please bare with me.

I have it hooked up to a 1hp Bridgeport, the motor makes a faint noise and tries to spin when I go from forward/off/reverse but it won't go, that's why I tested it.


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[laser3kw]

Unless your vfd is a 120v model, you have the wrong input voltage. If you put your meter across the input terminal you should see 240v ~.
I'm guessing you have a 120v tandem breaker instead of a 240v breaker. A tandem breaker will supply 2 120v circuits from on one "rail" / phase (one phase of 240 and neutral).
A 240v breaker draw off both of the 240 phase rails.
post pic of breaker showing it's data

 

[nine4gmc]

I have 120 across each of the hot and ground, not across the two hots. Top left breaker.





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[laser3kw]

measure between the two "hots". If you get "0 or little, you have the wrong breaker. If you measure 240~ we will have to rethink.
got to go - lunch is over......

 

[dw1]

Nine, can you post the make/model of your vfd and a pic of the name plate of your motor

 

[laser3kw]

The breaker looks good. On a three phase vfd, you hook the single phase input to “R / L1” and “S / L2”, and nothing on “T / L3”. looks like the ground ( bare copper wire)is correct.
The outputs are hook to the motor as if it is normal 3 phase - T1, T2, & T3. I assume the red / black / white are going to motor wires and none to chassis ground?
Also, DO NOT hook your forward / reverse drum switch in line between the drive and the motor. If you try to reverse the motor by interrupting the output lines, you will smoke the output transistors (IGBT).
Past that check the drive programming.

 

[dw1]

Nines, is that a A510 check your input wiring, if I am reading it correctly, for single phase input you should use terminals L1 (R) and L2 (S) if so, move the red wire one terminal left, please check owners manual before doing this, I am guessing at your brand/model

 

[dw1]

Ha, I was a minute late, but I believe that is your problem, Lazer got it.

 

[nine4gmc]

Okay, the drum switch is mounted on my motor. Do I go inside the motor and disconnect it and wire the motor in straight? I have been clicking it back and forth trying to get the motor to spin, do you think I may have damaged it?

 

[dw1]

read the above three posts about input voltage connected to L1 and L2 terminals, your red wire needs to move from L3 to L2 input terminal.

On your drum switch question, I don't think you want a switch between your output vfd connections and your motor, you want the drum switch connected to the vfd terminals, what brand vfd is this

 

[nine4gmc]

read the above three posts about input voltage connected to L1 and L2 terminals, your red wire needs to move from L3 to L2 input terminal.

Yeah, I'm cool with that but Laser mentioned DO NOT hook up the drum switch. I'm guessing I will need to bypass that for it to work properly as well? I'm going to bypass the drum switch and swap the input leads and see if that works.

Thanks for the help guys, I will post up shortly with the results.

 

[laser3kw]

I doubt you ruined it seeing it wasn't under load. I will back up one step - you can use the drum switch to forward / reverse, BUT you must let the motor come to a complete stop before doing so. AND this is not recommended.
If you want to use it, set the switch to forward and take the knob off. You will have to forward / reverse it via the vfd control panel. Read up in this section on how to wire a switch into the vfd control wiring. Or post the make / model of vfd and one of us can help you. You then also can take advantage of some of the vfd's control functions, like motor speed control via potentiometer.

 

[nine4gmc]

Well, my input connections are exactly as the instructions say at the bottom with "r" and "t". The schematics up top show how Laser says with "t" being the three phase post so I'm swapping that now.

The VFD is a HY Series 1.5kw




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[laser3kw]

Yes remove from "T" and Put on "S"

 

[nine4gmc]

Ok swapped and I'm getting 240 across the two hots but nothing happens when I turn it on or hit the forward/reverse switch.

I bypassed the drum switch, I just connected the motor wires to the feed wires in no certain order. Do I need to change them?



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[laser3kw]

run via vfd front panel controls. read the set up in the manual
I would guess a combination of "jog" and / or f?r

Do I need to change them?

not normal at this point. Get it running then if needed "phase it" via motor wiring

 

[dw1]

Yeah, you are going to have to read the programming manual, you might have to raise the frequency for the speed control and motor movement, if you press forward and the motor is running backwards, turn the breaker off and swap any 2 of your leads going to the motor (U,V,W terminals, easiest at vfd) if you make any wiring changes, I would turn the breaker off/make changes, turn back on, press reset and forward/rev keys. I was looking to see if this has a braking resistor or if its needed?

 

[dw1]

Look at page 17 here on powering up:
http://www.etech.net.au/Huanyang/HY Series Inverter 20100627.pdf

 

[nine4gmc]

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[dw1]

Get to PH 01 and press up arrow to raise frequency

 

[nine4gmc]

I've tried it at 50 and 60hz just as the directions say, power up, set freq, run, stop, change freq, run. Nothing happens, no sound or movement. Before the motor would hum and try to spin with the drum switch and input wires wrong. There's no error codes, everything appears to be working on the VFD.

When it first powers on, it sweeps to 400hz, I use the arrow down to set it to 50 or 60, then I hit run and wait. the numbers cycle from 0-50 or 60 and I can hear the VFD kick on but nothing at the motor.

 

[dw1]

I've tried it at 50 and 60hz just as the directions say, power up, set freq, run, stop, change freq, run. Nothing happens, no sound or movement. Before the motor would hum and try to spin with the drum switch and input wires wrong. There's no error codes, everything appears to be working on the VFD.

When it first powers on, it sweeps to 400hz, I use the arrow down to set it to 50 or 60, then I hit run and wait. the numbers cycle from 0-50 or 60 and I can hear the VFD kick on but nothing at the motor.

Looks like 400 hz is the default output operating frequency, start it up and leave it there, try to run it, use the up arrow to speed it up higher/faster

0-30,000 is the freq. range

 

[454ragtop]

As mentioned, NO switches between the VFD and the motor. You can use the drum switch, but wire it into that row of low voltage terminals in the green block above the main connections. Do you have another 3 phase motor hanging around you can temporarily hook up to the output side of the VFD to see if it works? As far as the wires to the motor, with 3 phase you can hook them up any order, if the motor spins backward, swap any 2. Or you can reverse the motor thru 1 of the parameters in the VFD.

 

[454ragtop]

Looks like 400 hz is the default output operating frequency, start it up and leave it there, try to run it, use the up arrow to speed it up higher/faster

0-30,000 is the freq. range

Pretty sure 30,000 is NOT the upper range of the frequency, probably 400. At any rate, probably don't want to go over 120 if it's not a special VFD duty motor.

 

[laser3kw]

try using a piece of solid wire and jumper Gnd and FWD on the control strip.
That should give it a run forward command. Don't worry if the motor turns the wrong way. Once you get use to using the drive and figure out how you want to conffigure it, then re phase the motor as 454ragtop suggested.

 

[dw1]

Pretty sure 30,000 is NOT the upper range of the frequency, probably 400. At any rate, probably don't want to go over 120 if it's not a special VFD duty motor.

Yes, my mistake, it looks like it is 0-400 hz operating range. Nines, did you have any luck with this?

 

[nine4gmc]

I have an old 3ph motor out in the shop I'll try after I try the jumper wire but it will be later this evening.

 

[dw1]

My Teco/Westinghouse VFD came today and I was able to get it installed on my Delta DP 220 Drill Press. I had already put a 1 HP- 3 phase Baldor motor on it and went with the Teco L510 120 v input- 230 volt, 3 phase output - rated at 1 HP.
So the motor is (Nameplate Rated) 1725 rpm at 60 hz, I am curious as to what the chuck is spinning (my belts are on the middle pulleys) I would like to know so I can make adjustments for drilling metal or wood?

(The default frequency for this drive is 5 hz, which I changed to 60hz, the range is 0-599 hz)
I will put external remote start/stop/Pot on later

 

[laser3kw]

dw1
looks like a nice vfd job.
just one comment: cover the terminal strips before a stray metal chip causes problems.
as far as rpm - at 60 hz it will be normal speeds , 30hz will be half, 15 hz will be 1/4

 

[stamanti]

Cool thread.

Here is my Monarch 12CK and My Delta Drill Press.

The Monarch uses the factory stop, forward, reverse buttons via 2 latching relays.

 

[dw1]

dw1
looks like a nice vfd job.
just one comment: cover the terminal strips before a stray metal chip causes problems.
as far as rpm - at 60 hz it will be normal speeds , 30hz will be half, 15 hz will be 1/4

I am going to put the vfd in some type of box, just playing around with it to get it going. I wasn't sure of the drill chuck rpm's. The drill has a 4 speed/ pulley and I where I have the belt (my belt was a tad bit to long and the motor plate is all the way adjusted out), I wasn't sure of the rpm's, just curious. I don't think I really need a braking resistor, right now it coasts to a stop, but it looks like I can have 2 preset speed inputs, maybe I can set two buttons up for that!!

 

[nine4gmc]

As mentioned, NO switches between the VFD and the motor. You can use the drum switch, but wire it into that row of low voltage terminals in the green block above the main connections. Do you have another 3 phase motor hanging around you can temporarily hook up to the output side of the VFD to see if it works? As far as the wires to the motor, with 3 phase you can hook them up any order, if the motor spins backward, swap any 2. Or you can reverse the motor thru 1 of the parameters in the VFD.

try using a piece of solid wire and jumper Gnd and FWD on the control strip.
That should give it a run forward command. Don't worry if the motor turns the wrong way. Once you get use to using the drive and figure out how you want to conffigure it, then re phase the motor as 454ragtop suggested.

Yes, my mistake, it looks like it is 0-400 hz operating range. Nines, did you have any luck with this?

Okay, I finally got a chance to hook up the old 3ph motor I had laying around and it spun right up like it should. The VFD was/is operating as should, I flip the breaker on and set the freq, then hit RUN and the freq counts up to the set point. When I hit stop, it slows down to 0 freq and I hear it turn off. I can then hit the REVERSE button and the rev light comes on, when I hit RUN it spins backwards as should.

So.... I go back to the mill, pull the belt from the spindle and hook the BP motor back to the vfd. Breaker on, set freq, RUN... It spins right up!!

Problem is, when I put the belt back on, I have to manually spin start the spindle by hand. The mill was out in the weather for a few weeks during the move and the tarp kept blowing off. With the rain and dust, the spindle bearings are now growling so I'll be replacing those shortly.

You guys are the best, thanks for putting up with me and all my questions, I just have one more though so pardon me please.

I can grab the spindle and stop it from spinning by hand and I've been told I have pu55y hands, is that normal? Not the pu55y hands, I know that's normal, being able to stop the spindle by hand.

 

[454ragtop]

Nine4, something doesn't seem right. If you can spin the pulley by hand, no matter how bad the bearings are, the motor should have no problem spinning it up. Not familiar with that particular VFD, but you should probably study all the different parameters and see if you need to change the acceleration rate, or some sort of torque boost or something to give the motor more power. When the motor doesn't start, does it set an error code? And no, you shouldn't be able to stop the spindle by hand. Any way to tell with the other test motor if it has decent power, maybe put a large pulley on it, and see if you can stop it with your pu55y hands? What VFD is that, one of those generic Ebay ones? Just realized you never mentioned how high a frequency you used. If you have the max set to something like 5 or 10, you probably could stop the motor by hand. Take it up to at least 60, if not 100 Hz.

 

[nine4gmc]

The VFD is the cheapest 1.5kw generic ebay unit available, BP motor is 1hp. I can spin the spindle by hand but it's really rough sounding. It was smooth when I got the mill but as I mentioned, it sat outside for about 2 months.

I had the frequency set to 60hz when I was able to grab the spindle and stop it, I didn't try it higher but will tomorrow. I have not checked any parameters on the VFD, I just hooked the spare motor up and it worked immediately so I ohm'ed out my wiring on the BP to make sure it had continuity. When I verified the wiring was correct and making contact, I removed the belt and powered up the VFD and the BP motor spun up smoothly. When that worked, I hit STOP, put the belt on and hit RUN, it tried to turn but would not spin so I gave the spindle a twist and it spun right up, though it was growling. When it reached full speed, I grabbed the spindle and was able to stop it, when I let go it started spinning again. There hasn't been any error codes or anything the entire time, the VFD appears to be functioning properly from the get go.

When I grabbed the spindle and stopped it, the belt was on the small motor pulley and large spindle pulley if that matters any torque-wise. I wish I could figure out how to post a video from my phone to show you guys.

I'll try to find a pulley for the spare motor and see if I can stop it by hand, may have to use some vise grips on it though, the shaft is huge. That would make a great video.

 

[laser3kw]

see if there is a "motor tune" feature that will test the motor and set up some of the fundamental parameters. You may have to input such things as volts, amps, poles from the motor.