Delta VP3000 Series - Page 517

Chapter 8 Troubleshooting｜VP3000
508
ID No.
Fault Name
Descriptions
18
IGBT temperature
detection failure (tH1o)
IGBT hardware failure in temperature detection
Action and Reset
Action Condition
NTC broken or wiring failure
Action Time
When the IGBT temperature is higher than the protection condition, and detection
time exceeds 100 ms, the tH1o protection activates.
Fault Treatment Parameter
No
Reset Method
Manual reset
Reset Condition
Immediately reset
Record
Yes
Cause
Corrective Actions
Hardware failure
Wait for 10 minutes, and then cycle the power. Check if tH1o protection still exists.
If yes, return to the factory for repair.