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[MaxHeadRoom]

Huh, appears I am wanted in three countries!
Max....

[MaxHeadRoom]

Probabally alot more in mine.
I brew my own beer! 😉
Max....

[MaxHeadRoom]

I had mine tested, also sent the resultant file to another site for search for relative's.
Mine mostly Scandinavian/British Isles, no surprise there!...

[MaxHeadRoom]

One: , PhasePerfect show in their block diagram and explanation that the 240v 1ph is passed directly through the convertor, unchanged, the 3rd phase is...

[MaxHeadRoom]

I was actually referring to the 1ph in 1ph out in order to run the typical 1ph motor with variable speed, but have heard so many story's of drop out of...

[MaxHeadRoom]

Sounds (and looks) like it might have been a dud from day one, If it was intended to work with a VFD I would very much suspect it is going to be a 3ph...

[MaxHeadRoom]

How did you come by it?
Was it removed from a working machine?
And in supposedly working order?
Max....

[MaxHeadRoom]

Amen, I agree, the fact is that the 'virtual' zero point of the vector has to be realized, in order to 'see' the 120° WRT each phase.
Referring...

[MaxHeadRoom]

Before trying to jump through some of the hoops suggested so far in an attempt to get it running, Can you post the motor plate details and make and model...

[MaxHeadRoom]

Not the ones I know of.
If talking RPC the ones I have built have a start capacitor and then a capacitor bank is used to create the 3rd phase,...

[MaxHeadRoom]

I see.
But I would think a resistance check should give a very good idea.
The info on the motor plate would normally tell all!
Max.

[MaxHeadRoom]

How are you going to provide the needed phase shift?
A typical RPC ran this way shifts the 3rd phase with suitable value capacitors.
I have...

[MaxHeadRoom]

2790rpm on 50hz = 2 pole.
Squirrel cage rotor = AC induction.
Sorry edited, 50Hz.
Max....

[MaxHeadRoom]

It is obviously a 2pole AC induction motor.
The Red/Blue/Green leads all appear to be winding connections?.
I would think it a 1ph PSC motor,...

[MaxHeadRoom]

The MS stands for Military Spec. and all these connector part No.'s normally start with MS.
At least all the ones I have used over the years....

[MaxHeadRoom]

I have a whole box of MS connectors or all stripes that will all probably end up going to the recyclers once I get to clearing out the shop on downsizing!🙄...

[MaxHeadRoom]

The one shown in the OP is an MS (Military Style) connector, from a couple of manuf, but as commented, are $$$'s!
The plastic CPC ref by PStechPaul...

[MaxHeadRoom]

Just about all the reputable manufacturers of DC motors I have used, publish a spec sheet that shows the continuous torque curve and the momentary operating...

[MaxHeadRoom]

If you use a PWM controller such as one of the T.M. MC2100 versions, they will control down to zero rpm, they normally have to control a varying load...

[MaxHeadRoom]

No quite, there is usually over-travel limits mounted just past the home limits, this is one reason the home sequence is first to the home limit, then...