1. VFD TROUBLESHOOTING

2. VFD TROUBLESHOOTING
• Is VFD showing any faults? e

3. VFD TROUBLESHOOTING
• Refer to page 51, IOM Section for VFD error definition

4. VFD TROUBLESHOOTING
• Does VFD have power (120, 230 or 460V) between any 2 inputs on VFD?

5. VFD TROUBLESHOOTING
• Set VFD on P-12 to 1 for manual running. (IOM Section 6.2)

6. VFD TROUBLESHOOTING
• Checking communication between controller and VFD 77 70

7. VFD TROUBLESHOOTING • Is there power between circuit breaker outputs?
• Is there power between circuit breaker inputs?

8. VFD TROUBLESHOOTING
• Is there power between disconnect outputs?

9. VFD TROUBLESHOOTING
• Check for VFD terminal 1,2 jumpers. 80

10. VFD TROUBLESHOOTING 69

11. IOM UPDATES
Section 9 - Troubleshooting