I don't understand the question? The motor responds to a signal range between 0-6.5V, the controller 7090.600 is included and required and if you connect another controller, it has to put out a signal in this range to override it. The 6150 is actually digital and the 7090.600 converts this analog input into a digital signal. Your controller would plug into the DIN port on the 7090.600 and it would be switched to External and just follow the instructions of the external controller.