Chapter 2 System Components Outputs Connecting Devices to Output Signals HAWK MV-4000 output signals can be interfaced with input modules (with sourcing input signals) found on most programmable logic controllers (PLCs) and other devices. The output signals can also be interfaced with inductive load devices (such as a relay, light stack, or a small motor). The HAWK MV-4000’s output signals are sinking output signals, based on an NPN-type transistor. Note that the HAWK MV-4000 outputs are not bi-directional outputs as they are for the Vision HAWK or MicroHAWK. These are simple switches that allow current to flow from the Output pin to the Output Common.
The outputs need to be connected to an external power source because they are not capable of providing voltage to drive a device on their own. They are typically connected in a sinking configuration because they only have one dedicated pin (Output1, Output 2, Output 3 (External Strobe), respectively) and share their other pin (Output Common). So, typically, a sourcing device is connected to their dedicated pin and the return path is connected to the common pin. The exact connection between the output signal, the connected device, and the power source depends on the type of device to which you connect. (Equivalent circuit only.) 2-20 HAWK MV-4000 Smart Camera Guide