Messages

1

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

« on: March 12, 2013, 03:25:37 AM »

Here is an picture of the motor

2

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

3

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

4

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

5

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

« on: June 03, 2009, 11:36:47 AM »

The DSPMC I believe is USB like the SmoothStepper and uses a plugin to communicate with Mach.
 It will be as accurate as your machine/motor/drives.

It is a different animal from the SmoothStepper, they both do similar things in that they are motion controllers but the SmoothStepper connect to Step/Dir drives and the DSPMC connects to Analogue Drives

I believe the DSPMC has breakout boards specifically for it.

Hood


Edit
 My mistake, just looked at DSPMC and it is Ethernet, same still holds true however as it talks to Mach via a plugin.

Ok.

So if it use ethernet it would faster than the ordinary paralleport speed to the drives?

Do you know also if this supports spindle motor so i can use one channel for spindle motor?
And also do you know if this supports the choice to make the compensation for the mechanical problems in the machine because the smooth stepper doesent this yet right?

Best Regards
Oscar Larsson

6

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

7

Show"N"Tell ( Your Machines) / Re: Waynes Leadwell VMC Retrofit

« on: April 30, 2009, 04:58:16 AM »

Hello Wayne.

I have been reading this thread with a big smile:-)

I have just bought my self an leadwell GMC 600 with an old CNC Meldas system that is brooken.
I  did not understand if you did change the servos to steppers or you did use the mitsubishi AC Servo motors?
How have you done with the spindel motor? Do you use the orginal mitsubishi Servo motor and the Freqrol FR-SF inverter or have you replaced it?

Best Regards
Oscar Larsson

8

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

« on: April 29, 2009, 02:51:15 PM »

Hello.

Im just reading his post of his Leadwell.
My idea is maybe still change the drives and the servo motors.

But is you doing with the spindle when you change tool?
Who does it know that the spindel is in correct degree to change toool so it has rotate to mutch?

Best Regards
Oscar Larsson

9

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

« on: April 29, 2009, 02:32:07 PM »

Hello Hood.

I have looking at the drives we use at work from Omron and i can not do any program in them to do that with index pulsing.
So i have an idea to put in the pulse from the mach in my plc when the mach whants to ref. When the plc gets the signal it sends it to the drive. The home position sensor is connected to an Interupt input on the plc and also the Z puls from the drive. and when i get booth i release my out signal and the drive stops, What do you think?

Another question.
I were on my local machine shop today and bought an Leadwell CNC machine with toolchanger today. The cnc system is an old Mitsubishi with AC Servo engines.
I wounder how you have solve your tollchanger?
Do you have all the program for the toolchanger in your plc?
Do you have all the communication for your toolchanger over the modbus to the plc?
What is the mach sending to your plc when the system whants to change tool?
Does the mach send over the modbus witch tool it whants to change to?

Best Regards
Oscar Larsson

10

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

« on: April 28, 2009, 07:56:21 AM »

Big thanks.

Now i do understand how it works.
When it looks for the index pulse. is this the same as the first pulse from the encoder that gets in the drive from that the home switch have been on?
When the mach sets the machine coordinates to home positions its the same as it sets all the axis that i have done ref on to zero in position?
Do your Allen Bradley drives have this function in them?

Best Regards
Oscar Larsson