INVT GD300-01A, Operation Manual

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Goodrive300-01A series VFD for air compressor Fault information and fault handling
-103-
Fault
code
Fault type Possible cause Solution
OL2 VFD overload
• Acceleration is too fast.
• The motor is restarted
during rotating.
• Grid voltage is too low.
• The load is too large.
• Increase acceleration time.
• Restart the motor after stop.
• Check grid voltage.
• Adopt the VFD with a larger
power.
• Select a proper motor.
SPI
Phase loss on
input side
Phase loss or fluctuation
occurs to input R, S and T.
• Check input power.
• Check installation wiring.
SPO
Phase loss on
output side
Phase loss output occurs to
U, V and W (or serious 3PH
imbalance occurs to the
load).
• Check the output wiring.
• Check the motor and cable.
OH1
Rectifier module
overheating
• Air duct blocked or fan
damaged.
• Ambient temperature is too
high.
• Long-time overload
running.
• Ventilate the air duct or
replace the fan.
• Lower down the ambient
temperature.
OH2
Inverter module
overheating
EF External fault
S external fault input terminal
acts.
Check external equipment
input.
CE
RS485
communication
fault
• Baud rate is set improperly.
• Communication line fault.
• Communication address
error.
• Communication suffers
strong interference.
•
Set proper baud rate.
•
Check the wiring of
communication interfaces.
•
Set correct communication
address.
•
Replace or change the
wiring to improve
anti-interference capacity.
ItE
Current detection
fault
• Poor contact of controller
board connector.
• Hall components are
damaged.
• Amplifying circuit is
abnormal.
• Check the connector and
re-plug wires.
• Replace the hall.
• Replace the main control
board.
tE
Motor autotuning
fault
• Motor capacity does not
match VFD capacity.
• Change the VFD model.
• Set motor type and