Useful Functions; Cooling Fan Operation Selection (Pr. 244) - Mitsubishi Electric FR-A740-00023 Instruction Manual

4.26 Useful functions

Purpose
Increase cooling fan life
To determine the maintenance time
of parts.
Freely available parameter

4.26.1 Cooling fan operation selection (Pr. 244)

You can control the operation of the cooling fan (FR-A740-00083 or more) built in the inverter.
Parameter
Name
Number
244 Cooling fan operation selection
⋅ 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 minor fault (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).
CAUTION
⋅ When terminal assignment is changed using Pr. 190 to Pr. 196 (output terminal function selection), the other functions may be
affected. Please make setting after confirming the function of each terminal.
♦ Parameters referred to ♦
Pr. 190 to Pr. 196 (output terminal function selection)
Parameter that must be Set
Cooling fan operation selection
Inverter part life display
Maintenance output function
Current average value monitor
signal
Free parameter
Initial Value Setting Range
1
Refer to page 230
Pr. 244
Pr. 255 to Pr. 259
Pr. 503, Pr. 504
Pr. 555 to Pr. 557
Pr. 888, Pr. 889
Description
A cooling fan operates at power on
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.

Useful functions

Refer to
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