Thread: Voltage difference in PWMs
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Unread 02-04-2007, 19:56
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Re: Voltage difference in PWMs
The PWM cable has 3 wires.

Black is ground (0 V).
Red is power (7.2 V from the backup battery - NOT USED by the Victor)
White is signal (0-5 V TTL)

The Victor changes its speed 120 times per second based on the last PWM positive duty cycle read. If the duty cycle is 1.5 milliseconds, then you are in neutral. 2.0 ms is full forward. 1.0 ms is full reverse. In between are the intermediate speeds.