Chapter 2 System Components Connecting an Output Signal to an Inductive Load Input To connect a HAWK MV-4000 output signal to an inductive load input, follow the diagram as shown below. An inductive load device, such as a traditional relay, requires that you use a flyback diode to protect HAWK MV-4000 from over and under-voltage, as shown below. This diode should be connected as close as possible to the input and voltage source of your inductive load device. (Equivalent circuit only.) 2-28 HAWK MV-4000 Smart Camera Guide