Lathe Motor Wiring Help (Grizzly/Busybee/Enco G1224)

[lSherlockl]

Hello,

Sorry if this should be under the grizzly sub forum but figured as its purely electrical issue here would be the best place. In short during transport to me lathe had its motor disconnected from the control box and don't have a before picture but have nice labels on the wires and several schematics but I'm not quite as familiar with AC motors to put the necessary pieces together to figure out for sure what wire goes to what.

it was/still will be setup for household 220/240

On the motor I have wires numbered 1 thru 6. Numbers 1 thru 4 are black 5 and 6 are red

From the control box I have ground, U1 (brown) V5 (blue) W4 (black)


this I believe is the overview of the control box (I am unsure if reverse worked its been a few months but i think it did, and pretty sure that button is wired in)


Here is what the grizzly manual shows for the motor setup for 220V


this is the wiring diagram from the Rong FU manual (OEM) and this at least has matching labels saying that U1 V5 and W4 go to the motor.


lastly this is the diagram from the motor wiring housing cover.


I have no issues probing things with a multi meter but have a respectful fear with messing with electricity that i don't fully understand, as i don't want to let out any magical blue smoke or make popcorn.

I did find one thread on wiring for the Busybee variant of this machine but in the end the info was just wire colors that match mine. i feel like i have all the information I just personally don't have the skills to piece it together at least not yet.

Thanks!

 

[sdelivery]

If the only thing that you are working on is the wires to the motor then match up to the print marked page 14 .
There are four wires and a ground shown, match them up.
The reversing is done through the contactor in the cabinet a,d doesn't affect the wiring at the motor.

 

[lSherlockl]

If the only thing that you are working on is the wires to the motor then match up to the print marked page 14 .
There are four wires and a ground shown, match them up.
The reversing is done through the contactor in the cabinet a,d doesn't affect the wiring at the motor.

The issue there is I have 3 wires plus ground (running to the motor) and none of those labels match the labels on the wires from the control box.
They match the third picture labeled "Wiring Diagram" from the OEM Rong FU manual. (which does not have any motor wiring info.)

the last 3 pics seem to agree with everything. However do not really say what connects to what on the motor.

 

[markba633csi]

At the motor, 2,3 and 5 tie together. 1 and 4 goes to U and V on your sketch. Tie motor 6 to either 5 or 6 on the sketch. If 5 has the motor running in reverse, connect to 6 instead
-Mark
Note: this is for 220/240v only- if there is a transformer in the contactor box set the tap for 220v- Important!

 

[lSherlockl]

Box was already wired for 240, i tested it under power before picking it up. Just well didnt get a pic of the motor wires when taking it partially apart for transit with the people helping me.

the transformer actually does not seem that fancy but it appears to be properly wired to 220.

I checked your diagram against my couple of manuals and the bit of foil lable from the motor housing and I thought it agreed or made sense so i figured I would give it a try.

upon hiting forward (nothing attached to the motor pulley wise) i got a decent size spark shot out the motor spun up and a strong smell of burnt and some smoke started wafting out. hit the kill switch

not sure what i may have done wrong i know from cleaning or sitting a bit of smoke or smell may not be uncommon didn't really get a pop but freaked me out a bit I will also ndd did not blow fuse or trip breaker

 

[markba633csi]

Ooops! That's not supposed to happen LOL
Disconnect the motor and actuate forward and reverse, see if the two contactors pull properly
There may be a problem with the motor itself- you can power it separately from the box to determine it's condition
To do that, disconnect motor completely, keeping 2,3 and 5 tied together. Then tie motor 6 to either 1 or 4 and apply 220v power to 1 and 4.
Use care
-M
If the motor has openings that might have let chips get in, you might want to open it up and clean it inside

 

[lSherlockl]

I think I have it figured out the wiring is actually labled to indicate what it connects to and your diagram helped alot.

the wires from the control box have a letter for idk control box meaning and the number of what they attach to in the motor
so U1 goes to wire 1 on motor V5 goes to wire 5 on the motor, and W 4 goes to wire 4 on the motor. 2,3,6 tied together. this seems to agree with everything too.


tested it forward and reverse work and in the directions they are supposed to go. I am not sure the difference in output from the control box between W4 and V5 wire because multimeter says they were both just 110 when checking them but it could be phasing stuff which I make no claims of understanding.

It could be too that the spark and or smoke was old dust or something cooking off. now I only get the contactor pop and well the jolt of the motor as well it starts full speed.

I appreaciate the help. it got the mind understanding what the is going on with the motor as it relates to the other diagrams and how it works a little. Probably swap to a VFD eventually but gets me up and running.

I also plan to give it a good run cycle of 15-20 mins check all the wiring temps but think its right now.

 

[markba633csi]

OK looks like just a nomenclature issue- sounds like it's working

 

[lSherlockl]

OK looks like just a nomenclature issue- sounds like it's working

yeah it may have been a loose chip from basically changing the orientation of the motor so many times between transit cleaning and hauling it downstairs. i did find a mysterious small chip or too in the tray that I swear were not there before so it could have just been a violent ejection of one.

In any case seems to be running stable and smooth so I'm happy appreciate the help

 

[markba633csi]

Cool!