A limit switch used to sense if the guard is in place on a machine is called ....

Prepare for the AEA Amatrol Sensor Logic Systems Test. Dive into interactive multiple-choice questions and quizzes, each with detailed explanations. Sharpen your skills and boost your confidence for your certification exam!

Multiple Choice

A limit switch used to sense if the guard is in place on a machine is called ....

A safety interlock switch. This type of switch is designed specifically for guarding and is actuated by the position of a machine guard. When the guard is closed, the interlock allows the control circuit to operate; if the guard is opened, the interlock breaks the circuit and stops the machine, preventing restart until the guard is re-secured. This is what makes it the appropriate term for sensing whether the guard is in place. Proximity, pressure, and temperature switches monitor other conditions (presence of an object without contact, sensed pressure, or temperature) and aren’t used as guarding interlocks in the same way.

A safety interlock switch. This type of switch is designed specifically for guarding and is actuated by the position of a machine guard. When the guard is closed, the interlock allows the control circuit to operate; if the guard is opened, the interlock breaks the circuit and stops the machine, preventing restart until the guard is re-secured. This is what makes it the appropriate term for sensing whether the guard is in place. Proximity, pressure, and temperature switches monitor other conditions (presence of an object without contact, sensed pressure, or temperature) and aren’t used as guarding interlocks in the same way.

More practice questions