INVT Goodrive300-01A Series Operation Manual page 109

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