Thread: Orac / 2024
Threaded View
-
08-03-2024 #8
Sorry - I have just had a short stay in hospital and still banned from workshop!
Have you managed to identify wire colours? As I say, I can't get outside to check, but there is a quick way to this with 4-wire motors. Best approach is to check resistance (cheap digital multimeter is invaluable!) between pairs of wires - any pairs. If there is maybe some few tens of ohms between two of them, label them as a+/a- (doesn't matter which). There should a similar resistance between the remaining pair - label b+/b-. Connect to corresponding terminals on driver. If the motor goes the wrong way, switch just one of the pairs, + for - and vice versa. Or do it via the appropriate software parameter.
No meter? Take a pair of wires and connect together. If the motor is difficult to turn, that's a pair (as above). Check by disconnecting those and try using the other pair to confirm. Connect two wires that are not a pair and there is no extra resistance to rotation.
Sorry - can't manage long sessions at the moment. Happy to continue discussion, though.
Thread Information
Users Browsing this Thread
There are currently 1 users browsing this thread. (0 members and 1 guests)
Similar Threads
-
Merry Christmas & Happy New Year 2010 - 2024
By Wobblybootie in forum General DiscussionReplies: 112Last Post: 25-12-2024, 11:01 AM -
Orac conversion
By terry1956 in forum Denford LathesReplies: 2Last Post: 22-10-2021, 09:34 AM -
WANTED: Denford Orac old electronics
By matoxx in forum Items WantedReplies: 2Last Post: 27-07-2016, 06:55 PM -
RFQ: Spindle for a Denford ORAC
By rnr107 in forum Projects, Jobs & RequestsReplies: 0Last Post: 07-11-2012, 05:20 PM -
Orac lathe
By phill05 in forum Milling Machines, Builds & ConversionsReplies: 4Last Post: 13-07-2012, 09:05 PM
Bookmarks