> On Jul 15, 2021, at 4:19 PM, Michael Thompson via cctech
> <[email protected]> wrote:
>
>>
>> From: Paul Koning <[email protected]>
>> To: Chris Zach <[email protected]>, "[email protected]"
>> <[email protected]>
>> Subject: Re: Looking for VAX6000 items
>>
>> A number of the large disk drives use 3 phase motors; RP04/5/6 are
>> examples as well.
>>
>> Three phase motors won't run on single phase power without help from run
>> capacitors. (There is no such thing as "two phase power" -- 220 volts is
>> single phase, balanced.)
>>
>> paul
>>
>
> The RP06 uses 220VAC single phase motors for the spindle and blower.
Interesting. I distinctly remember a disk drive installation manual that
warned about phase order. Perhaps that was for the RP04 and not the RP05/6 ?
paul
