Validation device for testing a machinery safety system

A method for testing and validating a machinery safety system, comprising:

• providing a validation device including a housing, an electrical processing circuit disposed within the housing, at least one switch connected to the housing and operably connected to the electrical processing circuit, at least one indicator connected to the housing and operably connected to the electrical processing circuit, and a quick-connect interface connected to the housing and operably connected to the electrical processing circuit, the quick-connect interface is configured for connecting in series to the machinery safety system;
• connecting the validation device by the quick-connect interface to the machinery safety system;
• inducing at least one fault, by manipulating the at least one switch, in the machinery safety system;
• and
• indicating by the at least one indicator a status of the machinery safety system;
• wherein the at least one switch includes a first pair of switches in the form of break-channel switches which each induce a channel-break fault;
• wherein the at least one switch includes a second pair of switches in the form of short-channel switches which each induce a cross-short fault;
• wherein the at least one switch includes a third pair of switches in the form of short-to-ground switches which each induce a short-channel-to-ground fault;
• wherein the step of inducing at least one fault includes inducing at least one single channel-break fault by actuating at least one break-channel switch, inducing at least one cross-short fault by actuating at least one short-channel switch, and inducing at least one short-channel-to-ground fault by actuating at least one short-to-ground switch.