INVT Goodrive350 Series Operation Manual page 250

Goodrive350 series high-performance multifunction VFD
Fault
Fault type
code
PID feedback offline
PIDE
bCE Braking unit fault
END Running time is up
Electronic overload
OL3
PCE
communication fault
Parameter upload
UPE
Parameter download
DNE
ETH1 To-ground short
EEPROM is damaged
PID feedback offline;
PID feedback source
fault
disappears;
Braking circuit fault or
braking tube is damaged;
The resistance of external
braking resistor is too small
The actual running time of
the VFD is larger than the
set running time
The VFD releases overload
pre-alarm based on the set
fault
value
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long
Keypad and suffers strong
interference;
Circuit fault occurred to the
keypad or communication
part of the main board
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long
and suffers strong
error interference;
Circuit fault occurred to the
keypad or communication
part of the main board
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long
and suffers strong
error
interference;
Data storage error occurred
to the keypad
VFD output is short
Possible cause
-241-
Troubleshooting
Corrective measures
Check PID feedback signal
wires;
Check PID feedback source
Check the braking unit, replace
with new brake tubes;
Increase brake resistance
Ask help from the supplier,
adjust the set running time
Check the load and overload
pre-alarm threshold
Check the keypad wires to
confirm whether fault exists;
Check the surroundings to rule
out interference source;
Replace the hardware and ask
for maintenance service
Check the surroundings to rule
out interference source;
Replace the hardware and ask
for maintenance service;
Replace the hardware and ask
for maintenance service
Check the surroundings to rule
out interference source;
Replace the hardware and ask
for maintenance service;
Re-backup keypad data
Check whether motor wiring is