Delta VFD550C43A-00 User Manual

Chapter 14 Fault Codes and DescriptionsC2000 Plus
14-24
ID* Display on LCD Keypad Fault Name Fault 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, a
nd detection
time exceeds 100ms, the tH1o protection occurs.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Reset immediately
Record Yes
Cause Corrective Actions
Hardware failure
Wait for 10 minutes, and then cycle the power. Check if tH1o protection still
occurs. If yes, return to the factory for repair.

Delta VFD550C43A-00 Specifications

General

Protection Level	IP20
Cooling Method	Forced air cooling
Input Voltage	3-phase 380 ~ 480VAC
Output Voltage	3-phase, 0-480V AC
Frequency Range	0.1-400Hz
Protection Features	Overvoltage, Undervoltage, Overcurrent
Communication Interface	RS-485, Modbus RTU
Operating Temperature	-10 ~ +50°C (14 ~ 122°F)
Storage Temperature	-20°C to +60°C
Altitude	1000m (derating required above 1000m)