Delta ME300 Series - Page 412

Chapter 14 Fault Codes and Descriptions
ME300
14-17
No. Display on LED 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 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.
No. Display on LED Keypad Fault Name Fault Descriptions
21
Overload
(oL)
The AC motor drive detects excessive drive output
current.
Overload capacity:
 Normal duty:
Sustains for one minute when the drive outputs
120%
of the drive’s rated output current.
Sustains for three seconds when the drive outputs
150% of the drive’s rated output current.
 Heavy duty:
Sustains for one minute when the drive outputs
150%
of the drive’s rated output current.
Sustains for three seconds when the drive outputs
200% of the drive’s rated output current.
Action and Reset
Action condition Based on overload curve and derating curve (Pr.06-55)
Action time
When the load is higher than the protection level and exceeds allowable time,
the oL protection activates.
Fault treatment parameter N/A
Reset method Manual reset
Reset condition Reset in 5 sec. after the fault is cleared.
Record Yes
Cause Corrective Actions
The load is too large. Reduce the load.