Filter
Top Products
244
Useful functions
4.20 Useful functions
4.20.1 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 drive unit is running and the fan stops during fan ON command.
For the terminal used for FAN signal output, set "25 (positive logic) or 125 (negative logic)" to any of Pr. 190 to Pr. 192 (output
terminal function selection), and for the LF signal, set "98 (positive logic) or 198 (negative logic)".
Purpose Parameter to set Refer to page
To increase the cooling fan life
Cooling fan operation
selection
Pr. 244
244
To determine the maintenance time
of parts
Drive unit part life display Pr.255 to Pr.259
245
Maintenance output function Pr.503, Pr.504
248
Current average value
monitor signal
Pr.555 to Pr.557
249
To set freely available parameter Free parameter Pr.888, Pr.889
251
To initiate a fault alarm Fault initiation Pr.997
252
You can control the operation of the cooling fan (1.5K or higher) built in the drive unit.
Parameter
number
Name Initial value
Setting
range
Description
244
Cooling fan operation
selection
1
0
Operates in power-ON status.
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 drive unit is
running. During a stop, the drive unit status is
monitored and the fan switches ON-OFF according
to the temperature.
The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)
NOTE
Changing the terminal assignment using Pr. 190 to Pr. 192 (output terminal function selection) may affect the other
functions. Set parameters after confirming the function of each terminal.
Parameters referred to
Pr.190 to Pr.192 (output terminal function selection) Refer to page 144