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AIRFREE SERIES
INSTRUCTION MANUAL
Code
Desc.
Input missing
E．iLF
phase
Code
Desc.
Output Missing
E. oLFxx
Phase
Code
Desc.
IGBT module
E. oH2
overheating
Code
Desc.
E. TExx
Self-learning
failures
Notice: where "xx" is self-learning fault sub code.
Code
Desc.
E. SPD
Rapid failure
Notice: the percentage of output motor speed relative to F01.10 [maximum frequency] is greater than F10.44 [ rapid detection
threshold], and the fault is reported after continuous F10.45[ of rapid detection time. By F10.43 [the rapid protection action], the
fault detection and the motor operation mode can be set when the fault is detected.
-12-
Reason
Solution
Loosening of main circuit
Tighten the screw and restart
terminal of controller
Improve the power supply to meet the rated voltage of the
controller if the main circuit power supply is no problem,
check the main circuit side of the electromagnetic contactor
Excessive input voltage
whether there is a problem
fluctuations
Three-phase voltage
Confirm if there is a problem with the input voltage and
imbalance
improve the power imbalance
Reason
Solution
Check that the motor U/V/W/ phase connection is normal
Controller output side
check that the controller output terminal screw is loose
U/V/W/ phase break
Motor damage
Measure the resistance between the motor wires, and replace
the motor immediately if it is connected
Low motor power
Reset controller or motor power
Reason
Solution
Excessive ambient
Reduce the ambient temperature of the controller
temperature
Reduce load
Overload
Decreased F01.40[ Carrier Set]
Make sure that the fan is running normally. When the fan is
Fan fault
abnormal, replace the fan and start up again
Reason
Solution
Check if the motor connection is correct, re-learn after reset,
The output current of the
still report failure to seek factory support
controller exceeds the
upper and lower limits
Reason
Solution
控制器应用故障Controller
Seek technical support from manufacturers
application
Improper setting of
relevant parameters for
Rapid Detection Threshold and F10.45[ Rapid Detection Time]
rapid detection
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