INVT Goodrive300-01A-RT Series - Page 96

Goodrive300-01A-RT series integrated machine Fault handling and product maintenance
-90-
Fault
code
Fault type
Possible cause
Solution
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 is
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.
• Motor parameters are set
improperly.
• The deviation between the
parameters obtained from
autotuning and the standard
parameter is huge.
• Autotuning timeout.
• Change the VFD model.
• Set motor type and nameplate
parameters correctly.
• Empty the motor load and
identify again.
• Check the motor wiring and
parameter setup.
• Check whether upper limit
frequency is larger than 2/3 of
the rated frequency.
EEP
EEPROM
operation error
• Error occurred to the
writing/reading of control
parameters.
• EEPROM is damaged.
• Press STOP/RST to reset.
• Replace the main control board.