Mitsubishi Electronics FR-A700 ユーザーズマニュアル

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Useful functions
4
4.26 Useful functions
4.26.1 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
fault (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 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
To determine the maintenance time 
of parts.
Inverter part life display
 Pr. 255 to Pr. 259
Maintenance output function
 Pr. 503, Pr. 504
Current average value monitor 
signal
 Pr. 555 to Pr. 557
Freely available parameter
Free parameter
Pr. 888, Pr. 889
You can control the operation of the cooling fan (FR-A720-1.5K or higher, FR-A740-2.2K or higher) built in the
inverter.
Parameter 
Number
Name
Initial Value
Setting Range
Description
244
Cooling fan operation selection
1
0
A cooling fan 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.
CAUTION
⋅ When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be
affected. Set parameters after confirming the function of each terminal.
♦ Parameters referred to 
Pr. 190 to Pr. 196 (output terminal function selection)  
 Refer to page 239