Operating Instructions

Fault Codes
Digital Keypad
314 | 443
RT003X-23N
95
90
RT005X-23N
105
100
RT0075-23N
115
110
RT010X-23N
115
110
RT015X-23N
115
110
RT020X-23N
115
110
Three-phase_460V
RT0005-43N
105
100
RT001X-43N
115
110
RT002X-43N
105
100
RT003X-43N
95
90
RT005X-43N
115
110
RT0075-43N
105
100
RT010X-43N
115
110
RT015X-43N
115
110
RT020X-43N
115
110
RT025X-43N
110
105
RT030X-43N
115
110
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 level
NTC broken or wiring failure
Action time
When the IGBT temperature is higher than the protection level, and detection 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
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.