Need Expert Opinion!!

[Wheresmywrench?]

Is the 230v 1phase motor used on the Maximat V10-P really a 3phase motor? I ask because they use a run capacitor on one leg and to and me it looks just like a phase converter setup. So is that what it is? :thinking:

 

[JimDawson]

Given that there is a wire(s) labeled ''Z'' I'm going to say that this is probably not a 3 phase motor. Normally you only find Z labeled wire in a single phase. BUT, I'm not 100% positive. The circuit that you drew, looks like a standard reversing circuit for a single phase. The only 3 phase wiring diagrams I can find, are all numbered or have terminals U, V, W, but no Z

Normally the data tag on the motor will state pretty clearly if it a 1 phase, or a 3 phase.

 

[Wheresmywrench?]

I see your point, but the run capacitor, which was mistakenly marked run coil, looks like it is a third leg of a 3 phase inverter. There is a suggestion on the Yahoo groups that this is a 3 phase motor. And no mater what position your selector switch is in you always have three live wires going to the motor. Z always has power to it thru the capacitor just like a phase inverter. As it comes off the Hi/Lo speed setting. And the other circuit for forward and reverse acts the same as a tumbler switch as you only need to switch two wires change position to reverse the motor direction on a three phase motor. So it does act like a 3 phase motor.

 

[John Hasler]

It's a capacitor-run single phase induction motor, which is actually a two-phase motor with the second phase generated by the capacitor. You reverse it by inverting one of the phases by swapping two wires.

 

[rdhem2]

Maybe the small point that everyone is overlooking is the fact that the starting switch interrupts the power in the afore mentioned circuit. Therefore the second coil/winding is only energized for a real short time until the motor reaches about 70-75% full speed. :allgood:

 

[Jim Nunn]

Its been 50 years since I own a V10 but As I remember it was a two speed motor. all the extra switching could be to support two speed operation.