GD310-UL series VFD
Fault tracking
-177-
Fault
code
Fault type
Cause
Solution
ETH2
[33] To-ground
short-circuit
fault 2
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 motor
power 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
dEu
[34] Speed
deviation fault
The load is too heavy or
stalled.
Check the load and ensure it is
normal. Increase the detection
time.
Check whether the control
parameters are normal.
STo
[35]
Mal-adjustment
fault
The control parameters of
the synchronous motors not
set properly.
The autotune parameter is
not right.
The VFD is not connected
to the motor.
Check the load and ensure it is
normal.
Check whether the control
parameter is set properly or not.
Increase the maladjustment
detection time.
LL
[36] Electronic
underload fault
The VFD will report the
underload pre-alarm
according to the set value.
Check the load and the
underload pre-alarm point.
Содержание GD310-011P-4-UL
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