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Topics - lightmind

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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?




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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!

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General Mach Discussion / Newbie with new 6090 needs help...
« on: February 21, 2014, 12:48:36 AM »
Hello,

I recently got a Chinese 6090B variant machine from CNC-Warehouse, they call it the CM-6090B. It has a ~24" x ~36" x ~6" working area and a 2.2kW spindle with a Fuling 2.2kW inverter.
It has a parallel port BOB that can be seen here (http://www.automationtechnologiesinc.com/products-page/breakout-boards/kl-db25rs).

The Stepper controllers are Leadshine M860's. It is a three axis machine, although I have a rotary that I will eventually set up as the X axis when using it.
I have spent a couple of days getting familiar with the machine & Mach3. So far I have the X,Y,Z axes moving; the home switches (proximity) trigger properly.
I have a few issues that I cannot seem to work out before I can go any further.

1) When I try to ref all home, the Z axis references first. It stops just past the home switch after it activates it, but does not back off until the switch turns off as I thought it was supposed to.
    Then, the Y axis tries to home. It does not move- but the DRO coordinates for the axis show that Mach3 thinks it is moving. I can ref home the all axes individually. However
    if the X or Z home switch is active the Y axis will not move. I have to back off the X & Y axes to turn off the home switches before Y will move. I haven't figured out why.

2) I have not been successful in getting the spindle to operate. Probably misconfigured (I hope), but I am sure it is wired correctly.
    BOB has four wires to spindle; GND, SPEN, GND, 0-10V connected to DCM, S1, ACM, V1 on the Fuling VFD in that order. The Mach3 setup is confusing me.

3) I cannot determine the Stepper models, the labels are unreadable except I can just make out "450A". The M860 driver is factory set at 5.83A peak, 4.16A RMS.
    The steppers seem to be working OK, but I don't have enough experience to tell for sure. Like, how
    long should it take for the axes to travel the full table, what they should sound like, etc. Do I need to know the model #s for anything?

4) In motor tuning, I set the "Steps Per"...
    X- 3/4" ballscrew @ 10mm pitch (.3937") @ 2.54 rev/inch x 200 step/rev  x 8 microstep = 4064.008
    Y- 3/4" ballscrew @ 10mm pitch (.3937") @ 2.54 rev/inch x 200 step/rev x 8 microstep = 4064.008
    Z- 1/2"  ballscrew @ 5mm pitch (.19685") @ 5.08 rev/inch x 200  x 8 microstep = 8128
    Velocity
    X- 196
    Y- 196
    Z- 98.425
Do these numbers look right?

The machine was supposed to come with a USB controller. Should I switch the parallel out to a USB?

I have attached my XML if you have time to look at it.
I would appreciate help, this is unfamiliar to me, especially the many settings in Mach3. I did not think I
would be jumping into the guts of this stuff just to get it to work but that's how it is going.
Thanks!

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