Delta VFD007FP4EA-41 - Page 397

Chapter 14 Fault Codes and Descriptions |CFP2000 Series
14-3
ID* Fault Name Fault Descriptions Corrective Actions
15
OrP
Phase lacked
Fault
Phase Loss
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.
16
oH1
IGBT over heat
Fault
IGBT overheating
IGBT temperature exceeds
protection level
1. Ensure that the ambient temperature falls within
the specified temperature range.
2. Make sure that the ventilation holes are not
obstructed.
3. Remove any foreign objects from the heatsinks
and check for possible dirty heat sink fins.
4. Check the fan and clean it.
5. Provide enough spacing for adequate ventilation.
17
oH2
Heat Sink oH
Fault
Heatsink overheating
Capacitance temperature
exceeds cause heatsink
overheating.
1. Ensure that the ambient temperature falls within
the specified temperature range.
2. Make sure heat sink is not obstructed. Check if
the fan is operating
3. Check if there is enough ventilation clearance for
AC motor drive.
18
tH1o
Thermo 1 open
Fault
IGBT Hardware Error
Return to the factory
19
tH2o
Thermo 2 open
Fault
Capacitor Hardware Error
Return to the factory
21
oL
Over load
Fault
Overload
The AC motor drive
detects excessive drive
output current.
1. Check if the motor is overloaded.
2. Take the next higher power AC motor drive
model.
22
EoL1
Thermal relay 1
Fault
Electronics thermal relay 1
protection
1. Check the setting of electronics thermal relay
(Pr.06-14)
Take the next higher power AC motor drive model
23
EoL2
Thermal relay 2
Fault
Electronics thermal relay
2 protection
1. Check the setting of electronics thermal relay
(Pr.06-28)
2. Take the next higher power AC motor drive model