IAM 4040 - PLC System Troubleshooting

Clock Hours: 60

Prerequisites: IAM 4030

Course Description:
One of the benefits of using a PLC controlled process is that PLC controlled processes are substantially easier to troubleshoot than hardwired systems. PLC programming software allows the technician to force inputs and outputs on (or off) which isolates these components for problem diagnosis and repair. The technician no longer has to start at the load and work backwards to the source. The PLC highlights the inputs and outputs that are true, thereby allowing the technician to start the troubleshooting sequence at the PLC

Student Learning Outcomes:
Students will be able to demonstrate knowledge of:

Identify methods used to troubleshoot PLC circuits and systems.
List general safety precautions required when using test instruments on PLC controlled systems.
Compare the advantages and disadvantages of using test lights.
List common types of meters used when working with PLC’s.
Describe common methods for determining voltage type.
List and describe test instruments used to measure temperature.
Demonstrate how the temporary end (TND) instruction mat be used to isolate problems.
Demonstrate how to use the FORCE instruction how it may be used to find wiring faults.
Demonstrate how to use the DISABLE command to troubleshoot program errors.