Is this Servo Good For CnC

[stevec]

I have 2 of the following DC servos motors.
They are marked as...

Type : DS64BE40-3
P/N : 127K1010
DC : 24
Made By Japan Servo CO LTD

Would these be usefull for cnc? any info on more specs? Are they worth anything.

Sorry for the bad pix. I could take better ones if needed.

Thanks Steve

[NC Cams]

The problem with Pacific rim servos is that info can be slim to none. The manufacturers are notoriously stingy with info.

Unless you luck into someone who has info on the original use of the servo, your guess is as good as anybody's.

[Al_The_Man]

Those have been around along time on the surplus market, I just sold three on Ebay, There is usually limited info on the label and they generally come with a low res encoder 100~500 p/turn.
I never took any reading as they were too small for the application I had.
Al.

[stevec]

I do know that they came out of an big old Xerox 1065 copy machine - One powered the document feed and the other moved the main mirror assembly.

How much should I ask if I sold them on Ebay and any other info if any could I provide a buyer?

Steve

[Al_The_Man]

I think I got about $20.00 each for them.
They have various encoders, usually easy to reverse engineer though.
Al.

[salahz]

I have 5 of a similar servo motor by Japan Servo

DS64BE40-2
P/N 127p2280REV.F

I am having a hard time find spec data for these. Can anyone help?

Thanks.

Salah Zenieh

[stevec]

I coulden't find any as well so gave up. If you find any, let me know.


STeve

[salahz]

I dug up an old surplus cataloge for motion control equipment and I was surprised to find the exact Japan Servo Motor with encoder. This is 1996-1997 cataloge of Servo Systems Co. and they were selling this motor for
$ 29.50. Here is an exact quotation of the info advertised in the cataloge:

Japan Servo Model # DS64BE40-2 DC Motor with Optical
Encoder
Rated for 24VDC, 400ma, 2000RPM no load. LAB TEST BELOW:

RPM TORQUE (oz-in) Current
----- ----------------- ---------
2160 no load 400 ma
1740 30 2.2 Amps
1290 60 4.2 Amps
700 90 6.3 Amps
stall 100 7.6 Amps

Encoder Specs (I'm not sure this is the same encoder as the one I have installed on the motor)

2 channel sine wave 100mv Peak to Peak. Input: 5VDC. Resolution: 100 counts/rev.
Dimensions: 2.65" dia. x 6-1/8"L., Pilot: 1.181" dia. (8) tapped holes, (4) in 1.968" B.C. and (4) on 1.535" B.C. Shaft: 0.375" dia. x 1-1/4"L (knurled)

Hope this helps.

Salah Zenieh

[stevec]

Thanks for the info salahz.
It's hard to belive that this motor is so cheap given the size and look. What are you plans if any for the 5 you have?

Steve

[salahz]

Steve,

I'm not sure what I am going to do with these yet. If the data I provided above (quoted from Servo Systems Co. Cataloge) is correct, the torque provided by these motors would be too little for what I want to do. Having said that, I am not sure I believe their lab test. So, I plan to run my own test on these motors. I own a couple of Cliffton Precision motors, don't have the model number right now, but these have been used by others for a router table. When I run both motors (Japan Servo and Cliffton Precision) I get the feeling that they offer very similar torques.

I know all what I am saying right now is very qualitative. So, I must run my own tests first and then see if I'll keep them or not. In any case, knowing some more information about these motors will be helpful.

Salah

[normnicol]

Thanks for the info,

Do you have by chance the pin out of the encoder not just the color code but what the number 11,12,13 and 6,7 mean. The wire was removed.
I think 11,12,13 are for power + - and enable and 6,7 are the outpout.

Thanks in advance
Normnicol

[dmauch]

Did you ever find out what the pin was for the encoder?
If you got it I would apreciate it.
Dan