Wiring Spindle Motor Controller to the MASSO

michaelmorris

michaelmorris
So I finally figured out the wiring from my spindle motor to my controller and am able to operate the spindle with the onboard potentiometer.

Now, I just need to wire the controller to my MASSO unit. ANY help would be greatly appreciated...

I am using an Anaheim Automation controller. Here's a link to the manual

Thanks!
 

masso-support

MASSO Support
Staff member
Hi Michael

Using the internal pot to control the speed does not make it ready to connect with Masso. Masso is an external control system so you need to configure for external control. That means one external switch to turn on and off the spindle in the Forward direction. If you want the Reverse direction you need to get it working with a 2nd on/off switch to start and stop the reverse as well. It Also needs to be configured to accept an external voltage to control Spindle speed. You could use an AA battery to provide the test voltage which will give you 30% of top speed and 2 x AA batteries in series (3volts) will give 60% of full speed.

Having a look at your manual it says that ?the speed signal is input on pins 11 & 12 and I suspect it is as simple as setting Dip switch 1 on panel 1 to ON to enable external control if I read it correctly. Your unit requires 0-5 volt while Masso outputs 0 -10 volts. To sort this you will need to half the Masso output voltage and the easiest way is to use the resistive dropper circuit I drew below.

I have not drawn anything for the on & off / Direction as I could not figure out exactly what was needed from the manual.

One piece of advice I offer you is to work on one thing at a time. Either work on the switches or on the speed control. Do not try and do both together. That is the path to severe hair loss. I would work on speed control first myself as it looks the easiest.

Hope this helps

Cheers

Peter
 

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michaelmorris

michaelmorris
Peter, thanks for your thoughtful reply and diagram.

In order to enable the motor to even start, 5v must pass through the Run/Stop+ and Run/Stop-. I used the MASSO spindle output 3 to send 5v. I can turn the motor on and off using the "Spindle CCW" button in the F2 function window. So now we've addressed on and off correct?

Now, I wire up the speed? Also, the manual says speed is controlled by using -5v to +5v. Will the diagram you provided send -5v?

One more super newbie question: the "w" symbols in your diagram (2.2K, 2.2K, and 1K), are these resistors or what?

THANKS!

Mike
 

masso-support

MASSO Support
Staff member
Great one Mike.

I wan't sure about the on / off but though you would be able to use the TTL outputs.

You probably want to use Pin2 rather than Pin3 as it is CW and much more useful. Looking at the manual I'm not sure how you would go about changing direction as it seems a strange setup.

Masso only outputs a positive voltage so you cannot use the +5, -5 volt method to change direction.

The components shown in the drawing are resistors. The 2.2K are fixed resistors and will limit the range that the output can sweep over just in case you get carried away turning the POT from one extreme to another. The 1K is a Variable resistor and you want a linear pot which will give a much better adjustment over the full turn rather than all the adjustment being at one end if you get a logrithmic pot. You could opt for a 10 turn or even a 25 turn pot which will give even finer adjustment.

The symbol is the old way of drawing a resistor for us old fellas. 2.2K = 2200 ohms or can also be written as 2k2, 1K = 1000 ohms

All parts should be easy to find locally.

Cheers

Peter
 
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