Asked by Marina Alcaide on Jun 30, 2024
Verified
The ____ pushbutton will always be the first device off of L1, so that it has "master control" of the rung.
A) start
B) stop
C) pause
D) jog
Master Control
Master control is the main interface or mechanism through which a complex system, such as a machine or network of devices, is operated and managed.
Start Pushbutton
A control device used to initiate the operation of machinery or equipment.
- Understand the rationale and operation of various contact mechanisms in ladder diagrams.
Verified Answer
VS
Vince SamuelsJul 05, 2024
Final Answer :
B
Explanation :
The stop pushbutton is placed first off of L1 in a control circuit to ensure it has "master control" over the rung, allowing for immediate stopping of the circuit for safety and control reasons.
Learning Objectives
- Understand the rationale and operation of various contact mechanisms in ladder diagrams.