Messages

41

General Mach Discussion / Spindle index on Optimum D280x700 Vario Lathe

« on: February 14, 2013, 10:58:34 AM »

Hello,

After venturing down a blind path with modbus/arduino and an Optimum branded chinese encoder I'm at a stand still.
Well untill I figured out to take the signal from the display on the lathe and feeding that into an input pin on my breakout board.
Problem now is that the STrue value is 4 times the actual rpm, which is because of the sensor receiving 4 signals per rotation.

I thought I could make a brain that just divided the value, but that doesn't seem to be the case.

[Spindle Index]---->[/4]---->[Spindle Index] 

I'm fairly new at this, so I might go the wrong way about it 

--
Kind regards,
Jens

42

Modbus / Re: Encoder for spindle true rpm via modbus

« on: February 11, 2013, 12:11:41 PM »

Thanks! I added another breakout board on another port and attached the encoder to it.
Now when I start the lathe nothing happens until I set the spindle speed ex. S300.
Then STrue displays 300 for a second and then over a second or so goes down to 0.
In the mean time the lathe's display shows 126

43

Modbus / Encoder for spindle true rpm via modbus

« on: February 10, 2013, 01:14:34 PM »

Hello 

I've had an Optimum D280x700 Vario CNC lathe for some time now and have been controlling it with Mach3 just fine.
Now I have to make a new draw bolt for my mill and for that I need to make a BSW thread.
So I went and bought the Encoder kit from Optimum and got the parts with absolutely no documentation.
I figured out the mechanics but now I'm stuck on the electronics.
The Encoder is Chinese OIS708-1024/Z3-5LD  and has 8 wires marked V+ 0V A A B B Z Z
Is there any way I can get this into Mach3 so I can make threads?
I'm not even sure modbus is the correct answer 

Kind regards,
Jens