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I was looking at these drivers and they have the same pinout required by my brushless motors.
CNCdrive - motion controls
I emailed the company but have not heard back (its been a week). By looking at the pdf manual I could swear they were meant for brushless servos. Can someone with more experience take a look and tell me if im on the right track?
They are intended for 3ph AC servo's, drives such as A-M-C Copley and Aerotech will run a DC brushed on their BLDC drives.
Al.
My brushless servos are 3ph as well.Quote:
Originally Posted by Al_The_Man
There is a subtle difference between AC servo and BLDC, the motor are practically identical, just the means of commutation is different, both brushless..
Al.
Right. DC uses square wave from the hall sensors and AC uses a sine wave? Is there a sure way to tell them apart? Mine are 170V, 18A, 3000W. This seems incredibly powerful for a NEMA 34 motor around 5" long. Here's some pics, including the standard A,B,Z incremental encoder on the back.Quote:
Originally Posted by Al_The_Man
Attachment 325752
Attachment 325754
Attachment 325756
Attachment 325758
What kind of driver would be appropriate for such a motor?
Drive you picked will work fine. Realized at 50 volts you will only get 1/4 top speed from your motor
Sent from my SM-G900V using Tapatalk
Would something like this be a better match?Quote:
Originally Posted by mike_Kilroy
Logosol LS 173cm 2010 Servo Driver Motor Controller Tested Functional | eBay
Yes, it will get you to 1/2 max speed now... you still need to buy an ac to dc 80v power supply and w/o the pdf manual ahead of time, there is no guarantee it will interface to YOUR stuff. You did not say what interface YOU need? +/-10vdc speed command? velocity loop?Quote:
Originally Posted by SwampDonkey
it does 6 step commutation and that matches the motor design MCG built (sold to ametek then discontinued). But sine commutation will work too.
so why not buy a drive for $ 200 that plugs into 120vac and does it all and gives you full speed?
I cant find a drive that matches these perfectly. Im sure I could buy a brand new drive that would do just that but im a "used and ebay" sorta guy (low budget).Quote:
Originally Posted by mike_Kilroy