Messages

1

General Mach Discussion / Re: Modbus control- Fuling DZB200 Inverter

« on: March 12, 2014, 10:38:00 AM »

Got the Modbus working with spindle control. Got real-time RPM,torque and power DRO's. I used the brains I found from someone named Sebba from 2012. Modified them for my system and used a screenset that had the RPM DRO already programmed. Something to be aware of for those who research for info for their machine... much of the information I found when I was looking for ways to make my system work was dated and conflicted with what actually worked. A lot of experimentation took place before I found out what settings were needed.

Now I can complete the preparation of my machine.

2

General Mach Discussion / Re: Need help with steppers- changed driver microstep now travel is way off

« on: March 12, 2014, 10:27:13 AM »

The stepper scalling is fixed now. A newbie mistake... The stepper drivers have a dipswitch for setting the microstep and current limiting. I had the settings correct, only I mistook the switch's on for off. After I realized the mistake and set the switch correctly everything returned to normal. I have been having trouble sleeping lately so I would work on the CNC project instead of lying in bed trying to go to sleep. Probably not in my best form in the middle of the night.

Thanks for the help.

3

General Mach Discussion / Re: Need help with steppers- changed driver microstep now travel is way off

« on: March 11, 2014, 04:01:27 PM »

I did reset Mach3.
The controller is Leadshine M860, it will do from 2 to 200 microsteps.

My thoughts on the microstep was that since the 1/4 setting works out to .0001" revolution, and it is unlikely my table will resolve to even that.

Thanks!

4

General Mach Discussion / Re: Need help with steppers- changed driver microstep now travel is way off

« on: March 11, 2014, 12:21:57 PM »

Forgot to add,

X, Y Ballscrew 10mm pitch, 2.54 TPI

at 1/4 microstep should be 2032 steps per inch.
at 1/8 microstep should be 4096 steps per inch.

Z Ballscrew 5mm pitch, 5.08 TPI

at 1/4 microstep should be 4064 steps per inch.
at 1/8 microstep should be 8128 steps per inch.

Wrong or right?

5

General Mach Discussion / Need help with steppers- changed driver microstep now travel is way off

« on: March 11, 2014, 11:55:43 AM »

Hello,
I have run into another problem. When I setup Mach3 initially I used the microstep settings on the stepper drivers; they were set for 8 microsteps, or 1600 steps/rev. After researching, I found that for my system the 4 microstep setting (800 step/rev) would have a resolution of .001", so I thought I would change the microstep settings on the driver boards to the 4 microstep setting. My reasoning was that the extra steps were wasted and decreased system efficiency.

After I made the changes I restarted the machine & Mach3. Then I made the "steps per" changes in Motor Tuning after the restart.

I then tested the axis travel movement. The motors were extremely slow. The X,Y,Z DRO's show 1" of travel for only a fraction of an inch actual travel. Axis should be travelling my table (24" x 36") but only travel a few inches for what Mach3 thinks is full travel.

Something got messed up, maybe I did not follow proper procedure or missed a setting- and maybe what I did was not necessary?

6

General Mach Discussion / Re: Modbus control- Fuling DZB200 Inverter

« on: March 09, 2014, 07:41:00 PM »

I have figured out how to control the spindle from the Modbus serial monitor screen.


Now it's on to getting the data from / to Mach3.

7

General Mach Discussion / Modbus control- Fuling DZB200 Inverter

« on: March 08, 2014, 03:01:46 PM »

Hello,

I bought a RS232-RS485 converter and am attempting to control the Spindle on the Fuling DZB200. I have setup the comm settings for the serial port and can successfully read the registers from the Inverters with no errors with 19200 baud 8-N-1 settings (Modbus serial monitor screen). But I have not successfully started the spindle from the port test screen. I have not been able to output the correct commands for the spindle start / stop / speed.
If I understand correctly, I should be able to do this as the first steps to getting the spindle to operate through Mach3. Once I can control the spindle from the Modbus serial monitor screen, I can move on to the next steps- Brains, etc.
I do not understand the correlation between the Inverter's command structure- it has F0 - F6 categories for settings, but I don't understand how to access the Parameters. I have seen them listed as P0 - P127 but there is no table for these in the manual.
I want to get the direct control from the Modbus serial monitor screen. I am not concerned with the Mach3 part of the controls yet.
I have researched extensively and noticed much of the Modbus info is years old. I assume that Mach3 has evolved since then, so that info might be dated.
I have also found some sample brains for control that I may use as a template for my setup.
If anyone has the same setup as mine I would appreciate some guidance, or maybe if someone is knowledgeable with Modbus they could get me on the right track.
Thanks in advance!

8

General Mach Discussion / Re: Newbie with new 6090 needs help...

« on: March 07, 2014, 04:18:25 PM »

Well it was problems with the BOB. I traced the signal paths and found that Hex Inverter chips and the analog multiplex / demultiplex chip were bad.

Scott at CNC-Warehouse sent me a new USB BOB, the AKZ250. Thanks Scott! I have been able to get the steppers, spindle, home switches and limits set up and working.

Thanks for all the help (Fastest). I'm sure I will have more questions / issues, but at least now I am progressing.

9

General Mach Discussion / Re: Newbie with new 6090 needs help...

« on: February 22, 2014, 08:14:45 PM »

Thanks for helping,

The inputs are opto-isolated. I think the BOB 5v supply (switched hi-lo by the opto-isolator) and going directly to the parallel port pin (which is seeing 3.3v from the pc) is where the differential is. 5v - 3.3v = +-1.7v difference. So at low the parallel port never sees below +-1.4v., probably near the hi-lo threshold which would explain why it is not triggering. The 3.3v parallel port supply & the 5v BOB supply have a common ground.

Just a theory until proven.

10

General Mach Discussion / Re: Newbie with new 6090 needs help...

« on: February 22, 2014, 07:42:56 PM »

Thank you fastest. I did not get the BOB from automation tech, it came in the machine. I found some info on the board from various sources. It looks like the voltage differential of +-1.4v between the BOB 5v ps and the parallel port 3.3v ps is keeping the logic at the parallel port pin high except for intermittent pulldown as seen on the Mach3 diagnostic screen Motor1 Home light when it flashes once every 10 seconds or so. I am going to go through my bin of old cards to see if I have a parallel port card that works at 5v. If not does anyone know a way to make the 5v and 3.3v compatible?