RobSmith wrote:Is there a better way of controlling the motor as a resistor is just a small electric fire and would be using electricity I could do without it using.
I shall just refresh my memory to remind myself what layout the armature and field windings are in.... I know one configuration allows it to rev to destruction.
Edit: Series wired with no load seems to be the route to destruction.
Edit 2: Looking at Wikipedia it seems it might be intended as series connected as it has a very low resistance field. I suppose it could be designed to work with a controller and seperately exited. I will ask in a more appropriate section.
Rob
If its only a series wound motor then the field is in series with the armature.
Other than using Pulse width Modulation to control speed which I think its like a fast switching system which in effect changes the average voltage sent to the motor. Thats a bit out of my depth though.
Your motor shouldnt race off load if you feed it with less voltage like 12v??
RobSmith wrote:.
Edit 2: Looking at Wikipedia it seems it might be intended as series connected as it has a very low resistance field. I suppose it could be designed to work with a controller and seperately exited. I will ask in a more appropriate section.
Rob
My guess LA and LB terminals are 1 pair = armature, LE and LF are the other pair =field. connect LB to LE, connect the positive of the battery to LF and connect the negative to LA. To make the motor go the other way connect LA to LE and the battery to LB.