Messages

1231

General Mach Discussion / Re: Configuring PC speed, motor speed, etc.

« on: June 24, 2007, 03:49:34 AM »

One thing you might try (which is a lot cheaper than changing computers) is additional memory.
This has worked very well in the virtual theatre organ forum that I am in, where speed is sometimes a bit of a problem. If you think about sorting letters without enough pidgeon holes, you'll get the idea. Doubling you memory certainly has quite an effect. (And if you sell the computer, you can always take it out and use it elsewhere.)

Jim.

1232

General Mach Discussion / Re: Speed Control of Omron inverter

« on: June 24, 2007, 03:42:05 AM »

Thanks for the suggestions - I'll follow them up.
Still fitting the 3 phase motor to my lathe - it's a lot bigger than the single phase (1.75hp to replace the 1 hp).Should have it done in the next day or two.

Jim.

1233

General Mach Discussion / Speed Control of Omron inverter

« on: June 21, 2007, 12:57:58 PM »

I'm new to Mach3 and the forum. I am trying to convert my Warco lathe (with milling atachement) to CNC. I am replacing the single phase motor with a three phase, powered by an Omron 3G3XV - AB015 - E inverter. I have read the operators manual for the Omron (which works well on it's own push button control system).  There are two possibilities of controlling spindle speed - one is to put a 0 - 10v DC voltage on a control pin, or the other is to put on/off signals on two other pins to move motor speed up, or down (direction is on another pin as is start and stop).

This doesn't seem to tie in with Mach3 - I cannot work out if I can get increse simple speed and decrease speed signals from Mach 3 on any of the output pins or if I can add other circuitry to extract a voltage from the PWM output.

Can anybody help, please

Jim Pinder