5.21 Useful Functions; Cooling Fan Operation Selection (Pr. 244) - Mitsubishi Electric FR-E720-0.1KNC Instruction Manual

5.21 Useful functions

Purpose
Increase cooling fan life
To determine the maintenance time
of parts.
Communication using USB (FR
Configurator)
Freely available parameter

5.21.1 Cooling fan operation selection (Pr. 244)

You can control the operation of the cooling fan built in the inverter (FR-E720-1.5KNC or higher, FR-E740-1.5KNC or
higher, FR-E720S-0.75KNC or higher).
Parameter
Name
Number
Cooling fan operation
244
selection
The above parameters can be set when Pr.160 User group read selection = "0". (Refer to page 197)
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 inverter is running and the fan stops during fan ON command.
To assign the FAN signal to the terminal Y0 or a virtual terminal of CC-Link communication, set "25 (positive logic) or 125
(negative logic)" in one of Pr. 190 to Pr. 192 and Pr. 313 to Pr. 315 (output terminal function selection). To assign the LF signal, set
"98 (positive logic) or 198 (negative logic)."
NOTE
Changing the assignment of the terminal Y0 or a virtual terminal of CC-Link communication with one of Pr. 190 to Pr.
192, and Pr. 313 to Pr. 315 (output terminal function selection) may affect other functions. Set parameters after confirming
the function of the terminal Y0 and virtual terminals.
Parameters referred to
Pr. 190 to Pr. 192, Pr. 313 to Pr. 315 (output terminal function selection)
Parameter that should be Set
Cooling fan operation
selection
Inverter part life display
Maintenance output
function
Current average value
monitor signal
USB communication
Free parameter
Initial Value Setting Range
1
Useful functions
Pr. 244
Pr. 255 to Pr. 259
Pr. 503, Pr. 504
Pr. 555 to Pr. 557
Pr. 547, Pr. 548, Pr. 551
Pr. 888, Pr. 889
Operates in power-ON status.
0 Cooling fan ON/OFF control invalid (the
cooling fan is always ON at power ON)
Cooling fan ON/OFF control valid
The fan is always ON while the inverter is
1 running. During a stop, the inverter status
is monitored and the fan switches ON-
OFF according to the temperature.
Refer to page 167
Refer to Page
213
214
217
218
220
222
Description
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