INVT GD20-0R4G-2-UL, Operation Manual

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Goodrive20-UL Series VFD Fault tracking
-111-
Fault
code
Fault type Possible cause Solutions
upload error good connection or
offline;

The keypad cable is
too long and there is
strong interference;

Part of the
communication
circuits of the keypad
or main board have
fault.
environment and
eliminate the
interference source;

Change hardware and
ask for maintenance
service;

Change hardware and
ask for maintenance
service.
DNE
[28] Parameter
download error

The keypad is not in
good connection or
offline;

The keypad cable is
too long and there is
strong interference;

Data storage error in
keypad

Check the
environment and
eliminate the
interference source;

Change hardware and
ask for maintenance
service;

Backup data in the
keypad again
ETH1
[32] To-ground
short-circuit fault 1

The output of the VFD
is short circuited with
the ground.

There is fault in the
current detection
circuit.

There is a great
difference between
the actual motorpower
setting and the VFD
power.

Check if the
connection of the
motor is normal or not.

Change the hall.

Change the main
control panel.

Reset the correct
motor parameter.
ETH2
[33] To-ground
short-circuit fault 2
dEu
[34] Speed
deviation
fault

Load is too heavy, or
stall occurred.

Check the load to
ensure it is proper,
increase the detection
time.

Check whether control
parameters are set
properly.
STo
[35] Mal-adjustment
fault

Control parameters of
synchronous motor

Check the load to
ensure it is proper.