INVT Goodrive 310-UL Series Operation Manual page 183

GD310-UL series VFD
Fault
Fault type
code
[20] Motor
tE
autotuning fault
[21] EEPROM
EEP
operation fault
[22] PID
PIDE feedback offline
fault
[23] Braking
bCE
unit fault
[24] Running
END
time reached
[25] Electronic
OL3
overload
[26] Keypad
PCE communication
fault
Cause

The motor capacity does
not comply with the VFD
capability

The rated parameter of the
motor does not set correctly.

The offset between the
parameters from autotune
and the standard parameter
is huge

Autotune overtime

Error of controlling the write
and read of the parameters

Damage to EEPROM

PID feedback offline

PID feedback source
disappear

Braking circuit fault or
damage to the braking
pipes

The external braking
resistor is not sufficient

The actual running time of
the VFD is above the
internal setting running
time.

The VFD will report
overload pre-alarm
according to the set value.

The connection of the
keypad wires is not good or
broken.

The keypad wire is too long
and affected by strong
interference.

There is circuit fault on the
communication of the
keypad and main board.
-175-
Solution

Change the VFD mode

Set the rated parameter
according to the motor name
plate

Empty the motor load and
re-identify

Check the motor connection and
set the parameter.

Check if the upper limit frequency
is above 2/3 of the rated
frequency.

Press STOP/RST to reset

Change the main control panel

Check the PID feedback signal

Check the PID feedback source

Check the braking unit and,
change new braking pipe

Increase the braking resistor

Ask for the supplier and adjust
the setting running time.

Check the load and the overload
pre-alarm point.

Check the keypad wires and
ensure whether there is mistake.

Check the environment and avoid
the interference source.

Change the hardware and ask for
service.
Fault tracking