B
bonzo
| Hi all Any industrial electricians in the house ? Having decided to move my old Harrison L5 lathe to a more suitable location in my workshop, I have taken the opportunity to give the lathe a full re-paint & light re-furb ( God knows it needs it ) As part of the re-furb I thought that I would replace the Heath Robbinson 1/4 hp single phase motor that was on the machine when I bought it. Now it just happens that I have a large good quality 1.5 hp single phase motor going spare, part of my late fathers kit & was a spare for his milling machine. A huge bonus is that it is a direct fit to the lathes existing motor mount. No idea of the age of this motor but I guess it can't be that ancient as it has a 28mm metric pulley shaft. I am no stranger to a little domestic wiring & have wired up the odd motor or Two over the years but I am in the dark on this one, hampered further by the lack of manfacturers wiring diagram. Here is a picture of the motors terminal connections 
The information on the motors data plate is as follows: Stayrite single phase ac motor HP: 1.5 RPM: 1430 Volts: 2**/240 ( * Dink in plate & can't read the numbers ) C/S: 50 Rating: Cont Amps: 9.5 Class E Single capacitor motor ( Cap is wired to A2 & Z1 ) Here is what I can make out from the faded diagram on the back of the connector cover. Single phase capacitor motor Motor to be operated from a potential relay starter T1 & T2 are the ****at leads ( * Can't read the letters ) Hopefully the photo shows the terminal markings clearly, if not they are marked T1 & T2, A1 & A2, Z1 & Z2 I was told that a Potential relay starter is also know as a DOL ( Direct online starter ) This was purchaced from an online retailer 
Alas, no wiring diagram for this either No idea where the loose ends of the wires go ?? One is wired to terminal 5 ( L3 ) of the relay & the other is wired to terminal 14 ( NO ) of the relay No idea where the short link wire wire should go. Looking at the motors current rating, is that 10A thermal overload going to be up to the job ?? Any help would be most appreciated. Got a sneaky felling that if I have to call a suitably qualified industrial electrcian in to wire it all up it is likely to be more cost effective to just go out & buy a new Cap start/Cap run motor . I have no real problem with simply buying a new motor but it would be a real pitty to throw away a good motor that will be well suited for the job. Ultimately I would like to wire this motor up via my Dewhurst Tye A reverse switch but that can wait for another day, just be nice to get this wired up & running. Thanks for taking the time to read this folks | |
