440 3 Phase Motor Controller

What does the motor name plate say?

Amps, Volts, Ph

your motor only has 3 wires plus a ground coming out of the cover? Are there more wires inside that may be bundled together?

you said the motor is now running with out a controller what kind of power supply do you have?

It currently is on 3 Phase 440 with the same 220 on one, and two with

Thanks for your reply,

Rod trike Mike wrote:

| It currently is on 3 Phase 440 with the same 220 on one, and two with | 110. It is directly wired through a fuse box to the electric circuit. | I will check tomorrow on the motor plate and let you know.

I assume you mean 120, 240, and 480 respectively (the standard voltages)

One big confusion here is just how your source of power is configured. You don't get 120 out of a 480 volt system without some kind of other transformer being involved.

Which type of 480 volt three phase power do you have:

1. 480/277 wye/star, with neutral provided (4-wire)
2. 480/277 wye/star, but the neutral is not provided (3-wire)
3. 480 closed delta, corner grounded
4. 480 open delta, common corner grounded
5. Something totally bizarre

Where is the 240 volts coming from?

1. It's own separate system
2. A center tapped neutral on 480 delta (480/416/240)

Where is the 120 volts coming from?

1. A center tap and 2 corners on a 240/208/120 delta system
2. A single phase from a transformer separate from the 480
3. A single phase from a transformer fed by the 480
4. An autotransformer

Perhaps either the motor or the controller needs a 4-wire wye three phase system. If this is a wye/delta soft start controller, then it will need a wye source, and you will need to power the motor with 6 wires.

Either someone experienced with this needs to take a look, or you need to describe everything in excruciating detail (including where every wire goes to and comes from). You may also need to have a volt meter handy to check the voltage difference between every possible pairing of wires.