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Interchangeability of Warn contactors...
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<blockquote data-quote="Blueleader" data-source="post: 1235974" data-attributes="member: 16071"><p>(I'm pretty sure this is right.... it's been several years since I went to school for this stuff)</p><p> </p><p>The "A" terminal is the armature winding (part that spins). The F1 and F2 terminals are both sides of the field windings (part that doesn't spin). The field and armature windings are wired in series and the motor direction is changed by swapping the polarity on the field windings.</p><p> </p><p>Look at the diagram at the bottom of the winch test proceedure. B+ is hooked to F2 and F1 is hooked to A. The other side of the armature winding is internally hooked to ground (B-). Current flows through the field winding, through the armature winding, and then to ground. To change the motor direction, F1 would be hooked to B+ and F2 would be hooked to A. Current flow is the same except that the polarity is swapped on the field. </p><p> </p><p>Make any sense?</p><p> </p><p>That small winch motor is probably a permanant magnet motor. Instead of using a field winding to create the magnetic field, permanant magnets are used instead. The armature is basically the same. To change rotation direction, the armature polarity is reversed. On that winch, I'd guess that the two terminals are connected to each end of the armature winding. Put B+ to one of them and B- to the other. To change direction, you swap the terminals.</p><p> </p><p>There is a way you can get that controller to work with the PM motor. It'll take a bit of rewiring, though. I'll see if I can come up with a diagram...</p></blockquote><p></p>
[QUOTE="Blueleader, post: 1235974, member: 16071"] (I'm pretty sure this is right.... it's been several years since I went to school for this stuff) The "A" terminal is the armature winding (part that spins). The F1 and F2 terminals are both sides of the field windings (part that doesn't spin). The field and armature windings are wired in series and the motor direction is changed by swapping the polarity on the field windings. Look at the diagram at the bottom of the winch test proceedure. B+ is hooked to F2 and F1 is hooked to A. The other side of the armature winding is internally hooked to ground (B-). Current flows through the field winding, through the armature winding, and then to ground. To change the motor direction, F1 would be hooked to B+ and F2 would be hooked to A. Current flow is the same except that the polarity is swapped on the field. Make any sense? That small winch motor is probably a permanant magnet motor. Instead of using a field winding to create the magnetic field, permanant magnets are used instead. The armature is basically the same. To change rotation direction, the armature polarity is reversed. On that winch, I'd guess that the two terminals are connected to each end of the armature winding. Put B+ to one of them and B- to the other. To change direction, you swap the terminals. There is a way you can get that controller to work with the PM motor. It'll take a bit of rewiring, though. I'll see if I can come up with a diagram... [/QUOTE]
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