250
Useful functions
4.21 Useful functions
4.21.1 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
250
To determine the maintenance time
of parts.
Inverter part life display
Pr. 255 to Pr. 259
251
Maintenance output function
Pr. 503, Pr. 504
254
Current average value monitor
signal
Pr. 555 to Pr. 557
255
Freely available parameter
Free parameter
Pr. 888, Pr. 889
257
You can control the operation of the cooling fan (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
173)
CAUTION
Changing the terminal assignment using
Pr. 190 to Pr. 196 (output terminal function selection)
may affect the other functions.
Please make setting after confirming the function of each terminal.
i
Parameters referred to
i
Pr. 190 to Pr. 196 (output terminal function selection)
Refer to page 116
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