INVT Goodrive300-21 Series Operation Manual page 77

Goodrive300-21 integrated machine for air compressor
Fault
Fault type
code
To-ground
ETH2
short-circuit fault 2
dEu Speed deviation fault
STo Mal-adjustment fault
Electronic underload
LL
E_FAN Auxiliary fan fault
Phase sequence
PSF
Communication
interruption
Low auxiliary
L-AUP
pressure fault
HAnd Handshake failure
Inverter
connected to the ground;
There is a fault in the current
detection circuit.
The load is too heavy or
stalled.
SM control parameters are set
incorrectly.
Autotuned parameters are not
accurate.
The inverter is not connected
to the motor.
The inverter reports underload
pre-alarm according to the
fault
setting.
The fan inverter is in fault.
The phase sequence on the
input side of the power is
fault
negative.
RS485 communication port is
disconnected.
Auxiliary pressure is too low at
start-up.
The
timeout.
Possible cause
output is short
handshake process
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73
Troubleshooting
Solution
Check whether the motor wiring
is normal/the motor is short
circuited to the ground;
Replace the hall component;
Replace the main
panel/drive board.
Check the load to ensure it is
proper, and increase
detection time;
Check whether the
parameters are set properly.
Check the load and ensure the
load is normal.
Check whether
parameters are set correctly.
Increase the mal-adjustment
detection time.
Check the load
underload pre-alarm points.
Check the fault code on the
touch screen.
Swap any two power input
cables
Check whether
communication cable is loose or
dropped.
Check whether P15.06 and
P15.07 are set properly.
Check whether the handshake
between the Plott controller and
inverter is performed according
to the handshake protocol;
Check whether P15.10 is set
properly.
control
the
control
control
and the
the