Looking for VAX6000 items (Paul Koning)

[Michael Thompson]

I believe that the CDC built RP04 has a three-phase spindle motor.

> On Jul 15, 2021, at 5:13 PM, Paul Koning <paulkoning at comcast.net> wrote:
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>> On Jul 15, 2021, at 4:33 PM, Michael Thompson <michael.99.thompson at gmail.com> wrote:
>> 
>> The power cord is three-phase, and actually daisy-chains to a second and third drive. The phases on the AC output connector are rotated to balance the load on all three phases when three drives are daisy-chained. If you look at the power wiring diagram on page 3-120 of the Memorex 677-01 manual you will see only two of the phases going to the power transformer.
> 
> Ok.  I just looked up the RP04 maintenance manual.  It isn't all that explicit but it does say that the spindle motor is a 3-phase induction motor.
> 
>    paul
>