I have a white paper by a student about  a DSP & microcontroller on an induction 1 PH motor
http://homepages.cae.wisc.edu/~ece734/project/f00/yaorpt.pdf
All of it  over my head.


I emailed Baldor and their Tech guy told me I couldn't get there from here as I need a 3 PH  motor and I only got one.
I just sent Sales at Danfloss a query to see if they say differently.

I got this motor for $80.00 shipped.  Factory MSRP is about $1200.  I  think the guy had tried selling it for more  but failed cuz he was eager to be rid of it.  It presented it's "issues" for consumer sales because of the shaft diameter ( 7/8") and mount type.  It was still in the Baldor factory packaging with that fresh whiff of factory air.    I built  a custom mount bracket  from 3/8" angle iron and welded tabs on  to extend it  because the motor has that  kind of mount where there are 4 bolt holes on the radial end of the motor and no base flange.  I have it on my DP and it's really a very nice motor, but in a perfect universe I could speed control it too.  

My old  DC motor was a brake motor and let me tell you once you get used to a brake motor there ain't no going back.
Being reversible and vari-drive it made for a superb tapping machine. I was kind of hoping to replicate that.

My Drill press got a new motor when my 50 year old DC varidrive motor died

The new motor is a  Baldor brake motor  # VBL3510T
1HP, 1725RPM, 1PH, 60HZ, 143TC, 3524L, TEFC, F1, Wired to run in 120 VAC
http://www.baldor.com/products/detail.asp?1=1&catalog=VBL3510T&product=AC+Motors&family=Brake|vw_ACMotors_BrakeMotor&winding=35WGX945&rating=40CMB-CONT
It's reversible too.

I would like to control the speed of the motor and also to reverse it.  I'd like a dial (just a friggin dial) to run the speed up or down.  I don't need feed-back or diagnostics,  I just want speed control.
Reversing can be done with a switch but speed control is another matter.
There's VFD and PWM.
VFD is the current norm for AC speed control
can the arduino serve this purpose?
And most especially: Has any one done it?    If you have would you be willing to share?

to remotely control it directly?

Sort of like "Oh yah, there's an app for that" ??
As you whip out  your cell phone to change the Mash temp?
Can't let the protein rest go on too long.


I'd like to see your work  up on that brewery.

Nice rig~!! I like your brewery.
I'm in the design and construction phase of a  three vessel brewery.
Started out as a two but I think I want to sparge after vourlauf.  Call me silly, but  there's fermentables in that thar' grain bed.

  I'm in the design phase of a little brewery.  A search for PWM controller  for a couple of Peltiers got me to Arduino.

WOW~!!
Thanks for the cogent responses.
That was a fair bit of information.

I'm going to spend some time on the Brew Troller site to see if I can make that work for me.  
Apparently they have a  mode they call PID  mode which works sort of like a light dimmer by clipping the voltage with a variable  dwll between bursts of power which may work as a PWM - though truly I'd rather reduce the volts not clip them

Other things  I'd prolly like to   know about are what other software  works and plays well with Arduino and the Duemilanove.
For example there's a site: http://processing.org/ where they have Gooey interfaces.   I'd be looking for things like Temperature and Time Gooeys  that wold let me change and monitor processes.

And don't know where to start.
Don't know which forum I should be starting out posting  in.

 When  I search the forums I don't see much by way of:
"So you never wrote a line of code and don't know what a resistor is?" Section to baby-step people into it sufficiently to get them up to speed.
So, like the proletariat, I have nothing to lose but misconceptions.

I want to automate a brewery.
I know pretty much every aspect of my brewery. It is in design and early construction phase.
 
I started out wanting PIDS and have decided that a more sophisticated  automation may be the better path.  I was liking the BCS 460, (it's cheap enough)  but I am not enamored of having to log on to the internet so  that the  BCS unit can phone home  each time I brew.

ERGO: Arduino.

But my initial foray into this site  has left me uninformed. For example, I can't figure out how many  SSRs I can control with one Duemilanove  unit (see list of questions  below).

 I'll have a slew of SSRs   controlling power to things like: Switching power supplies (ATX) for Peltier units, Water heater elements, two Pumps, - Really very basic stuff.  lots of on and off based on thermal input from Thermocouples and time.   
  
I want to tell the Duemilanove to flip the power based on feed back from a Thermocouple (TC) .
However I don't know how to make the TC and the Duemilanove talk to each other  nor do I know what types of TCs or Thermistors work and play well with the Duemilanove.
Essentially I am at zero with no clear path forward.

My first blush  threshold issues are
(a) what a Duemilanove can and can not do?
(b) how many  SSRs can be controlled by one Duemilanove?
(c) hot to make it work and play well with a TC?
(d) I want to use a PC to drive everything and need to understand the interface.  
(e) Can the Duemilanove take the TC feed back and display that on my PC monitor? If not how do I get that date to display in real time?
(f) I will want to use PWM technology to ramp the DC down to my  my peltier's  over some period  bringing them to idle before turning them off  so that all the residual thermal energy  from the hot side does not migrate into the fermentor. Can a Duemilanove do that? how?
(g) Can the Duemilanove tell time? more to the point:  Can it control a process based on time elapsed?   
(h)  Can the Duemilanove  track and log and display to a PC monitor, in real time, the things it's done over what time periods?

These are threshold matters for me.  I  can't get  in the door until I have a handle on them.


Any guidance would be appreciated.
milli grazie