09-20-2014, 09:09 AM
Can't tell for sure. That might be your dogs breakfast in there.
Does this magnetic contactor pull in (and stay in) when you hit the start button? It kind of sounds like your control circuit is powerless; you might need to move a wire. He may be attempting to draw power from the missing leg of the old three phase (that would be the wire to move).
Also, the overloads (reset button) are in that control circuit, are they closed? The single phase motor draws more current and possibly tripped it.
When happy, the control circuit applies power to the contactor's coil. Sometimes the coil burns out. See if voltage is present across it (or check continuity with the power off).
Pull a motor lead free while you mess with this. You probably don't want surprises. As to the reverse, look on the motor tag for instructions. Most can be reversed, not all. Some you have to open up, cut wires, reweld. Most of the time you just swap two wires (they can be brought out to a drum switch for fwd/rev). While you're there, check for proper voltage connections.
If you get jammed, seek an industrial electrician. Most residential sparky's won't have a clue, never having even seen one before.
Does this magnetic contactor pull in (and stay in) when you hit the start button? It kind of sounds like your control circuit is powerless; you might need to move a wire. He may be attempting to draw power from the missing leg of the old three phase (that would be the wire to move).
Also, the overloads (reset button) are in that control circuit, are they closed? The single phase motor draws more current and possibly tripped it.
When happy, the control circuit applies power to the contactor's coil. Sometimes the coil burns out. See if voltage is present across it (or check continuity with the power off).
Pull a motor lead free while you mess with this. You probably don't want surprises. As to the reverse, look on the motor tag for instructions. Most can be reversed, not all. Some you have to open up, cut wires, reweld. Most of the time you just swap two wires (they can be brought out to a drum switch for fwd/rev). While you're there, check for proper voltage connections.
If you get jammed, seek an industrial electrician. Most residential sparky's won't have a clue, never having even seen one before.