![]() ![]() I did this by producing the die-cast connecting box shown in the photos. to be able to add a reversing switch easily in the future.to have a simple forward-only connection at first.to be able to remove the motor easily (for easy transportation of the lathe).Finally for this step, I wanted to connect my motor up in a way which achieved three things. Myford suggest using the colours shown for the motor connecting wires (Black for "AZ" and "A" red for "Z" and "T") I would prefer four different coloured wires to avoid confusion at the other end! My motor was not brilliantly connected - the red connecting wire going to the "Z" terminal is showing a bit too much copper wire - however, it was running fine. NOTE, BE WARNED: confusingly, the red and black colours do NOT relate to the live and neutral mains connections. The second photo shows this with my motor as it was received. If you want to have the possibility of reversing the motor, then you need to take all four terminal connections outside the motor so that the starting winding wires can be swapped over. Inside the motor, on the terminals shown in the first photo, a wire would link the "AZ" and "T" terminals together which would then connect to the brown, live flex wire another wire would link the "A" and "Z" terminals together and connect to the blue, neutral flex wire and the Earth (yellow and green) flex wire would connect to the Earth screw. The simplest connection for a motor would use a 13A plug with proper 13A 3-core flex and a 13A fuse. In addition, the Earth connection must be connected through to the metal body of the motor using the screw terminal shown bottom right. To make the motor run forward, the connections mentioned above ("AZ" and "T" should be connected to AC live and "A" and "Z" should be connected to AC Neutral). On my motor, there are two labels which have no terminals ("K" and "S"). You can clearly see the labels (except for the "T" label which is partially obscured). It looks like they are already wired-up, but they are not - the wires you can see are for the motor's internal wiring which goes to the two windings. The four terminals can be seen in the first photograph. The starting winding has a centrifugal switch in series, and electricity only flows to the winding during the start-up once it is up-to-speed, the switch disconnects the winding from the mains. Myford suggest that for forward rotation, "T" is connected to AC Live and "Z" is connected to AC Neutral. The other winding is called the "Starting Winding" and is connected to terminals Marked "Z" and "T". Myford suggest that "AZ" terminal is connected to the AC live and the "A" terminal is connected to the AC neutral (if they are exchanged, then the motor would simply go in reverse). One winding is called the "Running winding" and is connected to terminals marked "A" and "AZ". ![]() This type of motor consists of two separate windings. ![]()
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