Cooling fan control

Function
The cooling fan run only when the ambient temperature is high and during run. This way, the service life of cooling fan can be extended compared to when keep running the cooling fan while the power is ON. It is also able to trip when the capability of the cooling fan falls below a certain level. The trip display is "E-42".

Selecting a setting value
0: Auto ON/OFF, No failure detection
Cooling fan is automatically controlled. Cooling fan operates only when the ambient temperature is high and during run.
Cooling fan operates automatically, if the ambient temperature is high, even when the inverter is in a stop.
1: Always ON, No failure detection
Cooling fan runs all the time when the inverter is on.
Trip does not occur at the time of the cooling fan failure. (Failure signal FL disabled)
2: Auto ON/OFF, Failure detection
Cooling fan is automatically controlled. Cooling fan runs only when the ambient temperature is high and during operation.
When the motor speed of the cooling fan is lower than a certain level, a trip occurs. (Failure signal FL enabled)
3: Always ON, Failure detection
Cooling fan runs all the time when the inverter is on.
When the motor speed of the cooling fan is lower than a certain level, a trip occurs. (Failure signal FL enabled)

Output during cooling fan run
If you assign the function to the unused output terminal, cooling fan fault alarm can be output while the cooling fan is running.
"50: During cooling fan run"
"190: Cooling fan fault alarm"
If you set [F620: Cooling fan control] to "2" or "3", a trip occurs at the time of the cooling fan fault.
The trip display is "E-42".

Please reference latest AS3 Instruction Manual more details or latest information.

AS3 fault codes, descriptions, symptoms and suggested remedies can be found in the below links. Each fault code can also be linked to directly from the AS3 by accessing the QR code on a mobile device while the AS3 is currently experiencing the fault.