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1

Bargain Basement / Yaskawa AC Servo motors 3.0kw 1500/3000rpm, brand new

« on: March 12, 2013, 03:23:47 AM »

I have 2 brand new Yaskawa AC Servo motors for sale.

Model: SGMGH-30DCA-YG11
Rated output: 3Kw
Speed: 1500rpm / 3000rpm max speed continus
Encoder: 17Bit Incremental Encoder
Torque: 18.6Nm continues & 45,1Nm peak under 3 sec

These motors are brand new in orginal boxes.

Price: 800$ / each
Shipping: worldwide

For more info send me an email
Audi_dp@hotmail.com

Best Regards
Oscar Larsson

2

General Mach Discussion / DSPMC/IP Or Galil CNC controller, witch is the best for Mach 3?

« on: June 08, 2009, 03:07:16 PM »

Hello.

I have just bought a couple of drives for my cnc retrofit project.
The drives are Bosch-Rexroth Indramat.
I have bought 5 servo motors and drives.
My idea is to use 3 of them to the X, Y & Z movements and one motor for an degree table like an 4th axis.
And the last servo motor for the spindle.

The drives are controlled Analog 0-10V. And i now wounder witch controller i should buy.
I have been looking at the DSPMC/IP controller from Vital systems and i have also been looking at the new Accelerera DMC-4050-C012-I000-I000   5-axis controller from Galil.
But it is an really big diffrence in price. Its over the doubble price on the Galil controller. Is this so mutch better than the Vital system?

I dont know if i have got this right. i have been trying to find some information but with out any luck.
Is this Galil DMC40xx controller compatibel with Mach 3? is there an finished plugin for this sytem to the mach3?

So i wounder witch of these 2 systems are the best one to buy if im looking for the best performance for the Mach 3 and for my machine.
The machine is an Leadwell GMC600.

All comments are welcome or other ideas.

Best Regards
Oscar Larsson

3

General Mach Discussion / Looking for Analog DC-drives to use to an DSPMC controller!

« on: June 04, 2009, 01:36:39 PM »

Hi.

I have just bought my self an 4-axis to my mill from Tsudakoma.
Inside this NC table there were an Yaskawa DC motor.

Model: UGJMED-60M
450 watt
1000rpm
98V
6.0A
ARM R 1.45 Ohm

I wounder if there is some kind of drive that i can use for this motor that has analog input so i can use it to an DSPMC controller?

Best Regards
Oscar Larsson

4

General Mach Discussion / Mach 3 and DSPMC motion controller questions!

« on: June 03, 2009, 10:42:17 AM »

Hello.

I wounder how the communication betwenne the computer and the DSPMC motion controller from vital systems work?
Is the communication over ethernet or still thrue the parallelport?

Does any one know how high accuracy this system can give me on an 4 axis milling machine?

Is this sytem as good as an smooth stepper?
Can this sytem also give me the high speed and still have very high accuracy?

And also will i need any breakoutbord if i use the DSPMC controller or can i use the inputs and outputs on the controller?

Best Regards
Oscar Larsson

5

General Mach Discussion / 3-Axis Mill Retrofit, Servo and performance questions! Alot of functions?

« on: April 26, 2009, 03:31:53 PM »

Hello my name is Oscar and im new in here.

Im working as an Automation engineer in sweden.

I have an 3 axis CNC mill at home with an old Bosch cnc system on that im planning to change to something new and i have been looking alot at the Mach 3 and i have some questions i hope some one could help me with?

First i wanna say that i have been looking at some other systems also like, Fanuc, Beckhoff and so on. But the price is far alot more money.
1) I wounder how good is the performance in the Mach 3, compared to more expensive systems like, fanuc, siemens?

2) If i have the right Servo amplifiers and motors and my mechanical on my machine is good, can this system then performace the same quality as the big systems from Siemens, Fanuc ?

3) I have been looking at Omron Sigma II drives at 2kw (8Nm on motor) for the axis movements, Is there any idea to use Absolut encoders on the motors or that is just overkill? Or inkremental is good enought?

4) I have also been looking at the SmoothStepper USB card, is this something to recommend when i use drives like this? Or maybe this is something to recommend anyway now that is excists?

5) Is the SmoothStepper card more stable than the parallelport system?

6) Is there any special good breakout card that you guys would recommend me to buy? Is it good to have the Chargepump function on the breakout card?

7) If i would like to have an MPG i think it's called. this hand held pendant with an handwheel on and with switches. Do i connect this to the breakout card? Some one know were i can this that is compatible with the Mach 3!

8 ) Is it possible to connect the pulse train from the drives to the Mach 3? Or this is there no meaning with it? If i have got it right there is no closed loop in the mach with the drives?

9) Can the mach 3 calculate the load of the axis drives and show it on the monitor, like fanuc and all other systems have? or do i need to connect an feedback from my drives to the mach 3 if its possible? Maybe over the Modbus from an PLC system?

10 ) Can i use an Axis drive like the 4th servo axis and use it for my spindle on the mill? Or the only spindle control is on the PWM output from the breakoutcard?

11) Is it possible to use the spindle control for more advanced functions like making threads? Fast ramping down, driving on low controled speed?

12) How many rows with G-codes can i have in an program? Is it the harddrive on my computer that will do the limit?

I hope some one maybe could help me with my questions.

Best Regards
Oscar Larsson