New Machine Build- Just ordered mine

[nash]

Hi Rick,

Thanks! Well, can I connect Phase 1, Phase 2, Phase 3 and Neutral (to lines 1, 2, 3 and 4) in the middle photograph? I have 380v 5pin lines, with 3 lines, 1 neutral and one earth.

In the water pump, which are the lines that need to be connected in which sequence. If I connect 3U1, 3V1 and 3W1 in sequence in the motor box will it be ok?

Thank you,
N

[Andre09]

Hi Nash, congratulations on your machine purchase !!

Its good to see more people buying the K60MT style of machine...

In terms of the electrics, What Rick Carter says seems to make sense.
Im still waiting for mine to be wired up, so I can't send you a photo of how it should look. Having said that, unless you have knowledge about 3 phase power, you should proceed with caution. It may look straight forward, but if you get something wrong, you are going to regret it enormously.

The Water pump needs to be turning the right way, i.e in the direction of the arrow sticker on the fan cover at the rear of the motor. Rocket can tell you that wiring it the wrong way( which was incidentally done by an electrician) can be fatal for the pump. It is a matter of switching two wires around to change the direction of the motor.

I am having mine wired up by a licensed electrician, so that I can be confident that things are done correctly. I don't have any real experience or advice to give you which will shed more light on things, other than the advice you've already received from Rick Carter.

I wish you luck and look forward to a progress report...

Cheers,
Andre

[nash]

Hello Rick,

In the last (vertical) photograph below, the 4 pole connector seems to be obvious, but just as a recheck, can I say that my red marks in these, 1=line-1, 2=line-2, 3=line-3, all these line wires are two red wires, 4=Neutral (with the single dark wire in it), and connect the earth to the earth-terminal-bus-bar.

Now to the motor panel, first photograph in yellow/red, there are markings for U1, V1, W1 and U2, V2, W2. The motor is connected in a Delta configuration, which is the left one in the panel. Thus, U1 is connected to W2, V1 is connected to U2, and W1 is connected to V2. In which sequence do I need to connect the U3, V3 and W3 connectors in the bottom inside front panel patch terminal in the second and middle photograph to the motor lines?

Hello Andre,

I wouldn't want to suggest anything here. The issue is that any electrician will need a detailed circuit diagram to make connections that he'll certify. We don't have access to any circuit diagram. Although I would suggest Rick Carter to go after JinanQuickCNC guys to get such things done in case they want to enter the main-stream market. I'm an engineer and have a pretty good idea of where each thing should go, but the conventions we have in Europe are slightly different from China. Thus, its prudent to ask what is the correct way to connect esp. in the case where you have zero documentation to support that. Trail and error is no good. I could check out everything using a multimeter, but that will be wasting time. The electrical panel has been put in very professionally, so the folks who did it must know its insides extremely well. The same cannot be said of the computer side of the panel where the wires are lose. They should ideally be neatly laid in tie-wrapped harnesses.

But one thing I would say is that CNCZone is an excellent forum with tons of value-add where people with real working experience get together to help each other. If not for this, I'd have never ventured to get my hands on such unknowns as a CNC machine from so far away. Even when, only Rick and his team were the ones who offered to incorporate my design of the gantry z axis into their machine. Thanks a lot for that Rick!!

Warm greeting to all from brrr-ccccoooold Italy. Its going to snow today again!
N

[Rick Carter]

Originally Posted by nash Hello Rick, In the last (vertical) photograph below, the 4 pole connector seems to be obvious, but just as a recheck, can I say that my red marks in these, 1=line-1, 2=line-2, 3=line-3, all these line wires are two red wires, 4=Neutral (with the single dark wire in it), and connect the earth to the earth-terminal-bus-bar. Now to the motor panel, first photograph in yellow/red, there are markings for U1, V1, W1 and U2, V2, W2. The motor is connected in a Delta configuration, which is the left one in the panel. Thus, U1 is connected to W2, V1 is connected to U2, and W1 is connected to V2. In which sequence do I need to connect the U3, V3 and W3 connectors in the bottom inside front panel patch terminal in the second and middle photograph to the motor lines? Hello Andre, I wouldn't want to suggest anything here. The issue is that any electrician will need a detailed circuit diagram to make connections that he'll certify. We don't have access to any circuit diagram. Although I would suggest Rick Carter to go after JinanQuickCNC guys to get such things done in case they want to enter the main-stream market. I'm an engineer and have a pretty good idea of where each thing should go, but the conventions we have in Europe are slightly different from China. Thus, its prudent to ask what is the correct way to connect esp. in the case where you have zero documentation to support that. Trail and error is no good. I could check out everything using a multimeter, but that will be wasting time. The electrical panel has been put in very professionally, so the folks who did it must know its insides extremely well. The same cannot be said of the computer side of the panel where the wires are lose. They should ideally be neatly laid in tie-wrapped harnesses. But one thing I would say is that CNCZone is an excellent forum with tons of value-add where people with real working experience get together to help each other. If not for this, I'd have never ventured to get my hands on such unknowns as a CNC machine from so far away. Even when, only Rick and his team were the ones who offered to incorporate my design of the gantry z axis into their machine. Thanks a lot for that Rick!! Warm greeting to all from brrr-ccccoooold Italy. Its going to snow today again! N

Hi Nash,

About how to connect the water pump, Andre is correct, if the vacuum pump motor turning in the correct direction, it proves the wires have been connected right, if not, pls switching each two wires position until it turning in the correct direction, this procedure need to be fast, if you find the motor turning in the wrong direction, you need to stop it immedately and change the wires.

About the middel picture you mentioned, the 4P breaker, there is lable below it which you can find U V W and Neutral on it, it is no problem for the positions of the U V W, you can connect them randomly, only the Neutral wire should be connected right, or else it will broken the machine.

Rick

[nash]

Hello Rick,

I think that the manner of trial and error is not good to connect the pump. In the delta connection the correct manner should really be a sequential loop of U, V and W (phase 1, phase 2 and phase 3 respectively). Thus looking at your connections:

U1 V1 W1
W2 U2 V2
V3 W3 U3

Should be the correct sequence. Can you kindly check with your engineers if the U V and W really represent the phases AND if the above sequence is correct? I.e., if I can connect the V3 to the leftmost point in the motor box, the W3 to the middle and the U3 to the right most point.

Thank you.
Best regards,
N