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  #1  
Old Fri 01 May 2009, 10:50
javeria
Just call me: Irfan #33
 
Bangalore
India
VFD wiring - right or wrong

hi look at the wiring of the VFD - let me know if I have done any mistake - kindly don't consider this to be your reference picture please.
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  #2  
Old Wed 04 November 2009, 11:01
javeria
Just call me: Irfan #33
 
Bangalore
India
just a good link for reading

http://www.powerqualityanddrives.com/emi_rfi/
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  #3  
Old Fri 23 July 2010, 13:40
Khalid
Just call me: khalid
 
Sadiqabad
Pakistan
what VFD is it?
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  #4  
Old Fri 23 July 2010, 14:04
Regnar
Just call me: Russell #69
 
Mobile, Alabama
United States of America
Irfan, I think we are going to need a little more info. What kind of power you have coming in and what vfd you have.

I dont know what electrical codes you have in your country but usually Grounds are suppose to be Green or Green/Yellow.

What is under all electrical tape in the bottom left? It also looks like you have 2 loose wires that come in with the control wire. Might want to clip them and heat shrink over.

Lastly and this could be dependant on your VFD. but usually they dont want anything above or below the unit. Basically they should be mounted on their own and not in a box. It has to do with the cooling of the VFD. Just make sure you have the clearance for cooling.
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  #5  
Old Sat 24 July 2010, 06:54
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
Box mounting is OK as long as the VFD can breath. We would need to know where the incoming wires come from and the outgoing wires are going to.

I agree on the colored wire for input side. Typically ground wires are green.

If you do not have access to a lot of different wire. At least try to get the green wire so you know what your grounds are. Very easy to smoke stuff when you confuse the ground wire.
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  #6  
Old Mon 26 July 2010, 06:59
javeria
Just call me: Irfan #33
 
Bangalore
India
1. Have single phase AC coming in(220V) at the top thru an EMI filter -
2. I used the available wire (I bought a single bundle of 3 sq mm wire) for ground,
3. i have connected ground wire to the shielding of the wire going to the vfd and the red insulation tape over it. it also covers the ferrite core over which the 3 wires going out to the spindle are wound.
4. the loose wire's were later on connected to vfd
5. The manual states that the VFD needs 50mm on top and below for air flow and thats been taken care of

I know its supposed to be green wire - but - since I was the only one handling the whole thing -

may be i need to switch to - well - some day I will change it.
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  #7  
Old Mon 26 July 2010, 09:28
danilom
Just call me: Danilo #64
 
Novi Sad
Serbia
Check the manual of VFD for single phase 220V input, mine had to be connected phase on L1 and neutral N on L3 connector not L2 but it could be different between manufacturers.
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  #8  
Old Mon 26 July 2010, 22:45
javeria
Just call me: Irfan #33
 
Bangalore
India
Its been working for one year like this
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  #9  
Old Tue 27 July 2010, 00:23
Regnar
Just call me: Russell #69
 
Mobile, Alabama
United States of America
Sorry Irfan, I didnt notice the original post date. I thought you asked for help just the other day.
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  #10  
Old Tue 27 July 2010, 05:29
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
L2 or L3 on these boxes just sets the motor turn direction. ie - if when you hook it up the motor is not turning the correct direction switch L2/L3.
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  #11  
Old Tue 27 July 2010, 05:32
bradm
Just call me: Brad #10
 
Somerville(MA)
United States of America
Is that true on the incoming side (L)? I thought that applied to the motor side (V). The L just gets rectified to DC, doesn't it?
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  #12  
Old Tue 27 July 2010, 18:46
javeria
Just call me: Irfan #33
 
Bangalore
India
Mike - wrong
Brad - correct
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  #13  
Old Tue 27 July 2010, 21:41
MetalHead
Just call me: Mike
 
Columbiana AL
United States of America
I guess I can be wrong ever now and then
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