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Operation Selection Function Parameters
3
INVERTER FUNCTIONS
3.6.4 Cooling fan operation selection (Pr. 76)
<Setting>
You can control the operation of the cooling fan built in the inverter. (Whether
there is a cooling fan or not depends on the model.)
Parame
ter
Name
Factory
Setting
Setting
Range
76 Cooling fan operation selection 1 0, 1
Setting Description
0
Operated at power on (independent of whether the inverter is running or at a
stop).
1
Cooling fan ON/OFF control valid
!
Always on during inverter operation
!
During stop (rest or error), the inverter status is monitored and the fan is
switched on/off according to the temperature.
• Heat sink temperature is less than 40°C ............ Cooling fan off
• Heat sink temperature is not less than 40°C ...... Cooling fan on
REMARKS
In either of the following cases, fan operation is regarded as faulty and is shown on the
operation panel.
•
Pr. 76 = "0"
When the fan comes to a stop with power on.
•
Pr. 76 = "1"
When the inverter is running and the fan stops during fan ON command or the fan starts
during fan OFF command.