Obviously will need more details on what you have there already Tom, but with DC current, in order to reverse direction, you simply reverse polarity. Take a power window on a car as an example: Although 12 volt, same basic idea and principles apply. When you hit the switch in one direction, + power is sent to window motor through one wire, and negative through the other wire. When you hit switch in opposite direction, the wire that was showing + 12 volts, now becomes ground, and the wire that was ground (-) will show 12 v + current flowing. The reversing of polarity (current) is done withing the switch and how it's wired. So basically, if you take the 2 wires going to motor, and reverse them, the motor should turn in opposite direction.
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Obviously will need more details on what you have there already Tom, but with DC current, in order to reverse direction, you simply reverse polarity. Take a power window on a car as an example: Although 12 volt, same basic idea and principles apply. When you hit the switch in one direction, + power is sent to window motor through one wire, and negative through the other wire. When you hit switch in opposite direction, the wire that was showing + 12 volts, now becomes ground, and the wire that was ground (-) will show 12 v + current flowing. The reversing of polarity (current) is done withing the switch and how it's wired. So basically, if you take the 2 wires going to motor, and reverse them, the motor should turn in opposite direction.