Taycol Model Marine Electric Motors
Home
Taycol Range
Reversing Problem
Using an old Taycol
Taycol Documents
'Taycol Tales'
Circuit with reversing coils
Circuit without reversing coils
Fault finding - if your circuit doesn't work!
Very straightforward.
Run unit with only power to the unit and esc connections - no Taycol motor connection.
Check all solder joints for dry joints.
Confirm power to +/- rail
Confirm relay operates by applying power to coil
Confirm esc is functioning by detecting voltage at resistor1/2
Confirm volt change is reaching opamp by checking pins 2 and 3
Confirm output signal; at Op-amp pin 1
Confirm mosfet switches power to coil
If you get a failure, the problem is with the component you have just tested....
Reversing Solutions
Relay Reversing
Constructional Help
Here are some example component layouts for each circuit on Veroboard - generated by VeroDes. I find it a useful little application, though it's annoying not to be able to put two wire links in the same hole..
Below we have two examples of the actual wiring needed, with two Supermarines - the one on the left without reversing coils while the one on the right has them. You can see that your main battery has to have two connections - one going to the ESC while the other powers the reversing unit.
On the left, you can see that the ESC connects directly to the two usual motor power terminals (yellow wires). The links are taken off the motor face-plate, and the crossover relay is connected here - the black wires going to the bottom while the white wires go to the top.
On the right, the motor with reversing coils has one lead (yellow) going straight to the common motor terminal, and also to the unswitched sensor terminal of the reversing unit. The other wire (black) goes to the switched sensor terminal, and stops there. It is switched in the relay, and comes out as one of the two white wires, both of which then connect to the forward/reverse terminals of the motor.
Lots of wiring!
