Industrial equipment operating status scanner

A method of detecting fault conditions at any of a plurality of control circuit contacts and switches of an electric machine connected to a power supply, comprising steps A) to N) as follows:

• A) detecting voltage at said power supply and in the event said voltage is zero continuing to detect said voltage at said power supply, and in the event said voltage is non-zero then executing step B);
• B) scanning voltages across said contacts and switches to detect whether said machine is operational, and in the event said machine is operational then executing step C) and in the event said machine is not operational then executing step D);
• C) displaying a message indicating that said machine is operational and then executing step G);
• D) displaying a message indicating that said machine is powered up and then executing step E);
• E) detecting voltage at said power supply and in the event said voltage is zero continuing to detect said voltage at said power supply, and in the event said voltage is non-zero then executing step F);
• F) scanning voltages across said contacts and switches to detect whether said machine has become operational, and in the event said machine is operational then executing step G) and in the event said machine is not operational then executing step C);
• G) detecting voltage at said power supply and in the event said voltage is zero continuing to detect said voltage at said power supply, and in the event said voltage is non-zero then executing step H);
• H) scanning voltages across said contacts and switches to determine whether all of said contacts and switches are closed, and in the event all of said contacts and switches are closed then executing step G), and in the event one of said contacts and switches is open then executing step I);
• I) displaying a message indicating that said machine is operational and that an intermittent open circuit has occurred at said one of said contacts and switches, and then executing step J);
• J) detecting voltage at said power supply and in the event said voltage is zero continuing to detect said voltage at said power supply, and in the event said voltage is non-zero then executing step K);
• K) scanning voltages across said contacts and switches to detect whether all of said contacts and switches are closed, and in the event all of said contacts and switches are closed then executing step G), and in the event one of said contacts and one of said switches is open then executing step L);
• L) displaying a message indicating that operation of said machine has been stopped by said one of said contacts and that said one of said switches is open circuit, and then executing step M);
• M) detecting voltage at said power supply and in the event said voltage is zero continuing to detect said voltage at said power supply, and in the event said voltage is non-zero then executing step N);
• and
• N) scanning voltages across said contacts and switches to detect whether said machine is operational, and in the event said machine is operational then executing step C) and in the event said machine is not operational then executing step M).