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Useful functions
4.22 Useful functions
4.22.1 Cooling fan operation selection (Pr. 244)
⋅ In either of the following cases, fan operation is regarded as faulty, [FN] is shown on the operation panel, and the fan
alarm output (FAN) and alarm (LF) signals are output.
⋅Pr. 244 = "0"
When the fan comes to a stop with power ON.
⋅Pr. 244 = "1"
When the fan stops during the fan ON command while the inverter is running.
⋅ For the terminal used for the FAN signal output, set "25" (positive logic) or "125" (negative logic) in any of Pr. 190 to
Pr. 196 (output terminal function selection), and for the LF signal, set "98" (positive logic) or "198" (negative logic).
Purpose Parameter that must be Set
Refer to
Page
Increase cooling fan life Cooling fan operation selection Pr. 244 300
To determine the maintenance time
of parts.
Inverter part life display Pr. 255 to Pr. 259 301
Maintenance output function Pr. 503, Pr. 504 304
Current average value monitor
signal
Pr. 555 to Pr. 557 305
Freely available parameter Free parameter Pr. 888, Pr. 889 307
To initiate a fault alarm Fault initiation Pr. 997 308
To save time for parameter setting Automatic parameter setting Pr. 999 309
You can control the operation of the cooling fan (FR-F720-00105 or more, FR-F740-00083 or more) built in the
inverter.
Parameter
Number
Name Initial Value Setting Range Description
244 Cooling fan operation selection 1
0
Operates at power ON
Cooling fan ON/OFF control invalid (The
cooling fan is always ON at power ON)
1
Cooling fan ON/OFF control valid
The fan is always ON while the inverter is
running. During a stop, the inverter status
is monitored and the fan switches ON-
OFF according to the temperature.
The above parameters can be set when Pr. 160 User group read selection = "0". (Refer to page 190)
CAUTION
⋅ Changing the terminal assignment using Pr. 190 to Pr. 196 (output terminal function selection) may affect the other functions.
Please set parameters after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection) Refer to page 128