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"The electronics on my Torqeedo Cruise 2.0 suddenly died--that is the display on the throttle went dead. The battery is fully charged, and I checked all the connections. I hope the motor itself still works, so I'd like to buy a new controller. Does anyone know what kind of motor it is? There are only two power cables going into the motor. Does that mean it is a DC motor?"
What year is your Cruise 2.0? I think for all years, the display on the throttle is not the controller, It's just the throttle, and a display to show you info from the head of the outboard assembly, which has the GPS in it which tells you the speed etc. The actual motor controller in down in the pod with the motor.
Therefore, the two big wires going down to the motor and controller in the pylon ( that's what torqeedo calls the motor pod) carry the 29.6v from the battery down to the controller, which then controls the motor. On my (really old) 2.0, it has another wire from the throttle down to the controller that gives it the speed asked for by the throttle.
The controller is built into the pylon, so that it carries heat out to the water by way of the aluminum part of the pylon that holds the motor, gearbox and controller.
The motor is a 3-phase permanent magnet brushless DC motor. In this style of motor, the controller uses the DC voltage to make a 3-phase sine wave that varies its frequency to make the motor go different speeds. You cannot just give the big wires more or less voltage, that motor will not work that way, it has to have a sophisticated controller.
That said, if your display is not showing anything, it is more likely that you have a bad connection than anything else. Unfortunately I do not know these motors well enough to effectively diagnose one, especially over email.
If you can find someone with a similar motor, maybe you can swap out the theottle, or maybe you can clean the contacts for the plug, or if you're bold you can even disassemble things a bit to test if there is a broken wire in the cable.
If yours is the mid-age model, Torqeedo will likely still be able to help you with it, they have service centers around the country who could probably diagnose it. Mine is too old, they don't have parts and won't even talk to me about giving me service information about it. As such, I have taken it apart and am planning on replacing the controller with one that I can get parts for. It will be large and therefore will have to be mounted up top of the motor instead of inside the pylon, possibly with a cooling fan. I got a generic controller from Kelly Controller, but you might have success with one built for a radio controlled airplane motor. The biggest hurdle so far is figuring out where and how to wire in the position sensors, the ones in the stock controller are too built in and are impossible to access and use. There are controllers that don’t use sensors and they can work but I’m not sure if the trade offs.
If you poke around on the internet a bit you can find people who have had the same problem and may have some useful tricks to use to diagnose and clean/repair the connections. There is a torqeedo group on Facebook that has some smart people on it.
Sorry I don't have better news.
Anton
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