6.7 2 and 3 Wire Control Circuits for Fluid Power Systems

Describe a 2 wire control circuit.

Describe a 3 wire control circuit.

Describe the behavior of this 2 wire control circuit.

Describe the behavior of a 2 wire control circuit if it ever experienced sudden loss and restoration of pilot or primary power.

Describe the behavior of this 3 wire control circuit.

Describe the behavior of a 3 wire control circuit if it ever experienced sudden loss and restoration of pilot or primary power.

Differentiate between low or no voltage release circuits and low or no voltage protection circuits

Comment on the utility of lock out and tag out procedures.