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Author Topic: Mach3 Problems - Rant!!  (Read 36872 times)

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Offline Pinky

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Re: Mach3 Problems - Rant!!
« Reply #60 on: May 30, 2011, 02:55:54 AM »
I remember asking our machine supplier if they tuned the servo's right, on which they replied, the servo's are pre-tuned from their supplier.

So I really have no idea if it's right or wrong or how to go about checking.

I've attached some documentation on the servo drives we using, it's the 0.75kw flavor.

Appreciate the help :)

Offline Hood

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Re: Mach3 Problems - Rant!!
« Reply #61 on: May 30, 2011, 02:59:52 AM »
Servos need to be tuned in place on the machine they will be used on, will go look see what I make of the docs attached.
Hood

Offline Hood

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Re: Mach3 Problems - Rant!!
« Reply #62 on: May 30, 2011, 03:02:32 AM »
That looks like a VFD to me rather than a servo drive, do you have documentation for the axis drives?
Hood

Offline Pinky

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Re: Mach3 Problems - Rant!!
« Reply #63 on: May 30, 2011, 04:18:52 AM »
I asked my manufacturer and this is all I got :

Delta B series .75kw servo motors
Delta AC servo drives

Would that be sufficient?

Offline Hood

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Re: Mach3 Problems - Rant!!
« Reply #64 on: May 30, 2011, 04:25:20 AM »
A quick google for that and I get a VFD same as you attached the manual for. VFDs are for AC Induction motors and although some can be closed loop it is the speed loop that is closed rather than the position, I think, so I cant see how they will  be accurate enough to use in a machine tool for axis drives.
Can you take a pic of your motors and control cabinet internals as that may shed some light onto what you have.

I will read the manual further as I may be wrong about your drives
Hood

Offline Hood

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Re: Mach3 Problems - Rant!!
« Reply #65 on: May 30, 2011, 04:26:59 AM »
Have found this http://www.delta.com.tw/product/em/motion/motion_servo/motion_servo_main.asp
Are these the types of drives you have and if so which meodels?
Hood

Offline Pinky

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Re: Mach3 Problems - Rant!!
« Reply #66 on: May 30, 2011, 05:21:03 AM »
I'm still waiting on a reply from our manufacturer.

I would imagine it's this one:

http://www.fastltd.net/asd-a2_series-494_en_cd.html

Will supply the exact model number as soon as I get it, but for now I think it's either the ECMA-C10807GS or ECMA-C10807FS
« Last Edit: May 30, 2011, 05:23:29 AM by Pinky »

Offline Pinky

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Re: Mach3 Problems - Rant!!
« Reply #67 on: May 30, 2011, 06:57:11 AM »

Offline Hood

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Re: Mach3 Problems - Rant!!
« Reply #68 on: May 30, 2011, 07:52:20 AM »
If you download the manual you can read the tuning section and try the auto tuning.
Hood

Offline BR549

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Re: Mach3 Problems - Rant!!
« Reply #69 on: May 30, 2011, 10:03:36 AM »
There is no real way to pretune the servos they HAVE to be tuned ON THE MACHINE . The proper tuning depends on how the servos respond ON the machine . This accounts for friction, sticktion, weight, inertia,velocity, accel, etc

(;-) TP