GD350A series high-performance multifunction VFD
-256-
Fault
code
Fault type
Possible cause
Solution
the rated frequency
EEP
EEPROM fault
R/W error occurred to the control
parameters;
EEPROM is damaged
Press STOP/RST to reset;
Replace the main control board
PIDE
PID feedback
offline fault
PID feedback offline;
PID feedback source disappears;
Check PID feedback signal
wires;
Check PID feedback source
bCE
Braking unit
fault
Brake circuit fault or brake tube is
damaged;
The resistance of external braking
resistor is too small
Check the braking unit, replace
with new brake tubes;
Increase brake resistance
END
Running time is
up
The actual running time of the
VFD is larger than the set running
time
Ask help from the supplier,
adjust the set running time
OL3
Electronic
overload fault
The VFD releases overload pre-
alarm based on the set value
Check the load and overload
pre-alarm threshold
PCE
Keypad
communication
fault
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long and
suffers strong interference;
Circuit fault occurred to the
keypad or communication part of
the main board
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
UPE
Parameter
upload error
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long and
suffers strong interference;
Circuit fault occurred to the
keypad or communication part of
the main board
Check the surroundings to rule
out interference source;
Replace the hardware and ask
for maintenance service;
Replace the hardware and ask
for maintenance service
DNE
Parameter
download error
The keypad wire is poorly
contacted or disconnected;
The keypad wire is too long and
suffers strong interference;
Data storage error occurred to the
keypad
Check the surroundings to rule
out interference source;
Replace the hardware and ask
for maintenance service;
Re-backup keypad data
ETH1 To-ground short Inverter output is short connected Check whether motor wiring is
