CDE360 Vector Control AC Drive Chapter 7 Fault Detection and Diagnostics
Display
Fault Name
Possible Causes
Solutions
Er17
Heatsink of
rectifier
overheat
The fan is blocked or damaged.
Clean the air filter or Replace
the damaged fan.
The ambient temperature is too
high.
Cool down environment.
The output phase to phase is short.
The output circuited is short to the
ground.
Rematch cable
The cable connecting the control
board and heatsink sensor is
abnormal.
Check the cable connecting the
control board and heatsink
sensor.
The Auxiliary power is damage or
the drive power is under voltage
Contact with technical service.
Drive overcurrent instantaneously.
Please see the overcurrent
solutions.
Er18
Heatsink of
inverter
overheat
Same as Er17
Same as Er17
Er/AL19
Input phase
loss
The input voltage of R, S and T
have some losses.
Check the input voltage and the
wiring.
Er/AL20
Output phase
loss
The cable connecting the drive and
the motor is abnormal.
Eliminate external faults.
The output current of U, V, W are in
unbalance status.
Check motor and cable.
The parameters value about the
SVC control are improper.
Set parameters value about the
SVC control properly.
Er21
Soft startup
relay fault
The contactor is abnormal.
Contact with technical service.
The contactor feedback circuit is
abnormal.
Buffer resistor is damaged.
Switch power supply is damaged.
The power supply is abnormal.
Check the power supply.
Er22
Current
detection
fault
The control board is faulty.
Contact with technical service.
Switch power supply is damaged.
The HALL device is abnormal.
Leakage current is too large.
