Futaba Pulscale "CMC" Manual Needed

Hi Folks:

I'm hoping someone can help me out with some information on an older
CNC controller that was used on a Bridgport retrofit that I just
acquired (but have yet to take delivery on) for home/hobby use.

The unit is a Futaba PulscaleCMC model PCM001 with AC servo motors.

I know that Futaba made DROs - this isn't one, it's a CNC
controller. It does use glass scales, I'm presuming to 'close the
loop', but it happens that the scales on the mill are "Heidenhain".
The controller panel, servos and servo drivers are all clearly
Futuba labeled (although the servos are Shinko Electric, re-labled
by Futaba).

From the way it the drivers are wired it appears that 3-phase is
used by the servo motors.

I'm hoping someone is familar with this setup, and maybe even has
some manuals on it. I'd gladly pay the cost of repro for the
documentation. I haven't been able to find anything on the web.

My understanding is that Futaba was in the CNC business in the '70s
but got out of the business shortly after entering.

I've got plenty of photos I could post if that would help ID the
unit. It's in great shape, and I'm told it works fine (still need
to get the machine powered before I'll take delivery). My biggest
concern is if I'll need true 3-phase supply (ie; rotary converter)
to operate the system, or if I can get by with single phase and a
VFD for the motor.

Thanks for any insights you can provide.

Mike G.