Delta MS300 Series User Manual page 574

Chapter 14 Fault CodesMS300
ID Display on LCD Keypad Fault Name Fault Descriptions
IGBT temperature
18
detection failure IGBT hardware failure in temperature detection
(tH1o)
Action and Reset
Action Condition NTC broken or wiring failure
When the IGBT temperature is higher than the protection level, and detection
Action Time
time exceeds 100 ms, the tH1o protection activates.
Fault Treatment Parameter N/A
Reset Method Manual reset
Reset Condition Immediately reset
Record Yes
Cause Corrective Actions
Wait for 10 minutes, and then cycle the power. Check if tH1o protection still
Hardware failure
exists. If yes, return to the factory for repair.
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