The problem Is that the motor ground is seperate from the brake circuit ground. We run a 48v setup for the motor and a sperate 12v battery for the lights on the car.
To wire the Regen do I feed the +12v wire to the vec200 and the negative to the black brake wire?
Hi Ronnie,
Combining the ground connection for both the controller and the 12V system would be the obvious thing to do if you were using the +12V wire to activate the regenerative braking function on the VEC200 controller using the vehicle's 12V brake light feed.
Also I just checked and my vec200 did not have the yellow/white wire for the 12v brake line. Is it supposed to?
The yellow&white +12V wire is shown as "optional" on the wiring diagram, so it looks like it might only have been fitted if it was requested as an optional extra when purchasing the controller.
If your controller's wiring does not have the required wire for the +12V regen operation, and you are not able to easily fit one yourself, you could alternatively use a standard 12V relay with the relay coil wires connected in parallel with the car's 12V brake lights, and simply connect the
"N/O" and "Common" relay contacts
(Typically pins 87 & 30) to the Blue&White +5V Brake wire and Black Ground wire.
This would automatically engage the regenerative braking when the brake lights were activated.
Alan
