Re: [CAD_CAM_EDM_DRO] Litton JDH-2250-CG-1C Servo Motors and fitted with 721B1-508-315-5KM Encoders (L

From a page I found at http://www.futurebots.com/parts.htm is the
closest I've found for any sort of data on these motors.
"Litton Clifton Precision DC motor JDTH-2250-GB-1C, date 1990, Nema size
23 DC brush motors
with4 mount screw holes on front. Peak torque 125 oz inch, 2 wires, 12
volts, 2.3 amps, 4700 rpms,
has a Encoder shaft. Great for CNC, Robotics, size 3 inch long x 2 inch
dia x 1/4 inch shaft."

These Litton/Clifton Precision nema size 23 brushed DC motors with encoders
can be found in many printers and plotters from the 70's to 90's.
I have DH-2250-C-1 (1977, 24Volt), DH-2250-F-1 (1978, voltage unknown,
judging by current draw they are 36V i think),
and DH-2250-AU-1 (1984, again voltage unknown).
I'll be stuffed if I can find any data on them though.
I'm going to try them on my Gecko340's in a couple of weeks to see how
they go?
Mic.

pljffrsn wrote:

> Hi,
>
> I have the above Servo Motors but no information on how to drive them
> etc. I am new to CNC and therefore am creating my 'information chain'.
> The units are 6 wire with 2 wires going to brush holders on the side of
> the motor body (+ve and -ve). I am assuming that these are DC motors.
> They have come from an old ZETA 9 Plotter.
>
> Can any one enlighten me on Servo /Encoder systems and are these good
> to have type motors or should I just go and buy some steppers to get
> going.
>
> All help greatfully received.
>
>
>
>
>
>
>
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
> Post Messages: CAD_CAM_EDM_DRO@yahoogroups.com
>
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@..., timg@...
> Moderator: pentam@... indigo_red@... davemucha@... [Moderators]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
> bill
> List Mom
> List Owner
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>