Hello people.
The last month i got a nice 3 phase brushless servo motor branded Kokusan Denki from a photocopier machine.
by searching on the web i found nothing at all about the motor, not any reference, not even about main IC used on the electronic board.
Rear stuff.
But last week, by pure look somebody of my country have the same motor and offered to send it to my for free, so im going to have 2 of this.
I will love to use does on a small cnc lathe im building.
The brand is, as y say, kokusan denki
Model apears to be TA0318.
It uses two IC's : SLA6023 (Oh, worst datasheet ever, dont send my that) and KA60228 (dip 30 format).
Here is the picture of the motor:
http://mundotronic.com.ar/foro/download/file.php?id=40
The problem im having, to make the long story short, is that this weekend grave it and plug it to a proper power supply and by a few test, was able to make it run on one direction, but not the other, no matter wath i did.
If you look at the picture, you will see that there are 5 wires to the motor:
Red - 24 volts
Green - Ground
Yellow - 5 volts
First blue, near to yellow - ?????
Second blue, far from yellow - ?????
Now, this motor tooke my attention because of the 2 signal cables on it. meaning: big size motor, build in electronic, obvius 3 wires for power, and only 2 extra ones, and in my imagination those should be for step dir connection. Could that be more easy?
well, it is not.
Wen i start measuring things i notice that the fist blue (Lets call it A) it was some type of ground, and the second blue (Lets call it B) was +5.
- If i connect A to B the motor runs clockwise
- If i connect A to ground the motor runs...again, clockwise (wen i do this wile measuring B, this drops voltage to zero)
- If i connect B to anything, noting happens.
If i connect A and B to ground the motor runs clockwise.
Im starting to think that may be this motor will not run at all to the other side.
Maybe they make it that way.
But at the same time im thinking "May they put this, for clockwise rotation only, instead of a simple dc motor?"
"They spend more on this fancy servo, so i should be thinking that is able to run both directions? "
Any suggestions?
Oh, wen the motor run, it is about 3-5 turns per second, and because of the lovely torque and gear reduction, it became almost unstoppable i may say.
So , if the factory make it to run both directions, im strongly tempted to use this two fellas for my project