Help on wiring needed for Single phase 2.2kw motor

Spoon

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• Dec 30, 2017

• #2

Are you an electrician?
What wiring is existing on the machine for the motor?

 

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cliffed

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• Dec 30, 2017

• #3

Live & neutral Z1 Z2

 

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buzzlightyear

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• Dec 30, 2017

• #4

http://www.sentridge.com/wp-content/uploads/wiring_1ph.pdf

 

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PEG

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• Dec 30, 2017

• #5

buzzlightyear said:

http://www.sentridge.com/wp-content/uploads/wiring_1ph.pdf

Click to expand...

Who could argue with that? 14 minutes and a concise answer

I am sensing the "thankyou" may be held-up,by a further question...

 

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jongkolkhoo

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• Dec 31, 2017

• #6

Spoon said:

Are you an electrician?
What wiring is existing on the machine for the motor?

Click to expand...

It's a mechanical gear without electrical and the motor is to turn a gear reducer. I do my own house wiring but I dont work as an electrician. As for qualifications, I was a computer and electronics engineer with 20 years experience.( Retired from corporate world )

 

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jongkolkhoo

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• Dec 31, 2017

• #7

cliffed said:

Live & neutral Z1 Z2

Click to expand...

Thanks, I figured that out and tried it. It works but I need to change the motor rotation to anti-clockwise ?
Can I change the jumper setting as : connecting U2-Z2 and U1-Z1
(not actually changing the jumper but changing the wires to the jumper).

 

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jongkolkhoo

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• Dec 31, 2017

• #8

PEG said:

Who could argue with that? 14 minutes and a concise answer

I am sensing the "thankyou" may be held-up,by a further question...

Click to expand...

You are absolutely right ! Thank you for the diagram but this motor wiring is not the same as in the diagram but its a mix of both. As it comes with 5 terminals and the original jumper setting looks different from standard motor wiring.

 

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jongkolkhoo

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• Dec 31, 2017

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Thank you to all. I manage to get the motor working . But as its a cheap China machine, there is a lot of tweaking to get the machine to actually work. Oh by the way, Malaysia's electricity is UK standard as the nation's infrastructure was build by UK. Even the law is based from UK.

 

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• Dec 31, 2017

• #10

On a single phase (looks to be split phase in this case) machine, you need to change ONE of the field connections and keep the other the same. That changes the direction of the rotating magnetic field and thus the motor direction.

It looks as though it is designed to be eas to change the direction by moving the jumpers. So as you suggest, just swing the jumpers across so that Z1-U1 and Z2-U2.

If you wish to verify this, check z1-z1 with a multimeter on ohms. It should be zero meaning they are common.

 

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