Connect a PLC with electrical components.
Connection may include the use of components such as
- normally open (NO) momentary (start)
- normally closed (NC) momentary (stop)
- sensors
- contactor and solid state relay
- status lamps
- drives (e.g., variable frequency drive [VFD], microstepper, servo).
Process/Skill Questions:
- What enables an emergency stop button to shut down a system immediately?
- What is the purpose of a status lamp?
- What happens if NO and NC switches are accidentally swapped in a hydraulic lift?