Honeywell VFD CORE Installation Instructions Manual page 251

Fault
DC BUS voltage is less than
LvS
Pr.06-00 at stop
Lv at stop
Fault
Phase Loss
OrP
Phase lacked
IGBT overheating
IGBT temperature exceeds
Fault
protection level
oH1
1 to15HP: 90
IGBT over heat
20 to 100HP: 100
Heatsink overheating
Fault
Capacitance temperature
oH2
exceeds 90
Heat Sink oH
overheating.
Motor overheating
Fault
The VFD detects that the
oH3
internal temperature exceeds
Motor over heat
Pr.06-30 (PTC level)
Fault
IGBT Hardware Error
tH1o
Thermo 1 open
Fault
Capacitor Hardware Error
tH2o
Thermo 2 open
Fault
Power off
PWR
Power RST OFF
1.
2.
Check Power Source Input if all 3 input phases are connected
without loose contacts.
For models 40hp and above, please check if the fuse for the AC
input circuit is blown.
1.
2.
3.
o
C
o 4.
C
5.
1.
2.
o
C cause heatsink
3.
1.
2.
3.
Return to the factory
Return to the factory
251
CHAPTER 14: FAULT CODES AND DESCRIPTIONS
Check if the input voltage is normal
Check for possible sudden load
Ensure that the ambient temperature falls within the
specified temperature range.
Make sure that the ventilation holes are not obstructed.
Remove any foreign objects from the heatsinks and check
for possible dirty heat sink fins.
Check the fan and clean it.
Provide enough spacing for adequate ventilation.
Ensure that the ambient temperature falls within the
specified temperature range.
Make sure heat sink is not obstructed. Check if the fan is
operating
Check if there is enough ventilation clearance for VFD.
Make sure that the motor is not obstructed.
Ensure that the ambient temperature falls within the
specified temperature range.
Take the next higher power VFD model.
63-4528—04