INVT Goodrive20-EU VFD Series, Руководство по эксплуатации

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Goodrive20-EU Series VFD Fault tracking
-111-
Fault
code
Fault type Possible cause Solutions
keypad.

Backup data in the keypad
again.
ETH1
[32] To-ground
short-circuit
fault 1

The output of the VFD is
short circuited to 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;

Replace the hall;

Replace the main control
panel;

Reset motor parameters
and ensure those
parameters are correct;

Check whether motor
power parameters in P2
group are consistent with
the motor power actually
used.
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 are set
improperly.

The parameter gained
from autotuning is
inaccurate.

The VFD is not connected
to motor.

Check the load to ensure it
is proper.

Check whether control
parameters are set
correctly.

Increase 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.
STO
[37] Safe torque
off

STO function operates
normally
STL1
[38] Channel H1
abnormal

Fault or internal hardware
circuit fault occurred to H1
channel

Replace STO switch; if
problem persists after
replacement, contact the