FREE PLC and VFD Troubleshooting Class in Dallas
- 9:00 AM – 1:00 PM with breakfast and lunch provided
- Hands-on PLC and VFD troubleshooting tips
- Class taught by Dave McDonald
2022 Dates (all locations)
- August 16, Houston
- September 20, Dallas
- October 18, Houston
- November 15, Dallas
- December 20, Houston
Description
PLC and VFD Troubleshooting Course Syllabus
- Test Instruments and Electrical Safety
- Digital Multimeters and Other Voltage Testers
- Instruments for Measuring Electric Current
- Determining if Electrical Insulating Gloves are Required
- Determining if Arc-rated Apparel and Other PPE are Required
- General PLC Troubleshooting
- CPU and Power Supply LED’s
- MicroLogix LCD Status Indicators
- Error Codes and Status File
- I/O Point LED’s or LCD Status Indicators
- Evaluating PLC Program Rungs and Forcing I/O
- Using the Scale with Parameters (SCP) Instruction as a Tool
- PLC Troubleshooting with Test Instruments
- Digital Inputs and Outputs at the PLC
- Triac On Voltage Versus Off Voltage
- Digital and Analog Inputs and Outputs at the PLC
- Digital Field Device and Wiring at Device
- Analog Field Device and Wiring at Device
- General VFD Troubleshooting
- Visual Inspection Checklist
- Tricolor Status LED
- Control Panel Keypad Status Row
- Evaluating Modified Parameters with Drive Software
- Main Control and Main Status Words
- Fault Tracing Using Fault Messages
- Best Motor Current Measuring Means
- Control Panel Mounting Platform +15V LED
- Specific Faults and VFD Troubleshooting with Test Instruments
- Measuring DC Bus Voltage for Safety
- Overcurrent- Eliminating the Motor as the Culprit
- Overload- Legitimate or Incorrect Parameter Settings?
- Overvoltage- Most Common Causes
- Earth Leakage (Ground Fault) Sensing Scheme and Locating Fault
- Input Phase Loss Sensing Scheme
- Under voltage and Automatic Restart
- Fuse Testing and Reasons for Blown Fuses/Tripped Circuit Breakers
- Checking LV DC Power Supply Voltages for Ripple
- Preventive and Restorative Maintenance
- DC Link (Bus) Capacitor Lifetime
- Replacement Capacitor (or VFD) Reforming
- Pre-Charge Circuit Lifetime
- IGBT Lifetime
- IGBT Checkup
- Important IGBT Replacement Practices
- Lifetime for Fans and Replacement Procedures
- DC Link (Bus) Capacitor Lifetime
DOWNLOAD: PLC & VFD Troubleshooting Course Syllabus PDF
