4.20 Useful Functions; Cooling Fan Operation Selection (Pr. 244) - Mitsubishi Electric FR-E700EX Instruction Manual

Useful functions

4.20 Useful functions

Purpose
To increase the cooling fan life
To determine the maintenance time
of parts
To set freely available parameter
To initiate a fault alarm

4.20.1 Cooling fan operation selection (Pr. 244)

You can control the operation of the cooling fan (1.5K or higher) built in the drive unit.
Parameter
number
Cooling fan operation
244
selection
The above parameters can be set when Pr.160 Extended function display selection = "0". (Refer to page 182)
 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)".
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)
244
Cooling fan operation
selection
Drive unit part life display
Maintenance output function
Current average value
monitor signal
Free parameter
Fault initiation
Name Initial value
Parameter to set
Setting
range
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.
1
The fan is always ON while the drive unit is
1 running. During a stop, the drive unit status is
monitored and the fan switches ON-OFF according
to the temperature.
Refer to page 144
Pr. 244
Pr.255 to Pr.259
Pr.503, Pr.504
Pr.555 to Pr.557
Pr.888, Pr.889
Pr.997
Description
Refer to page
244
245
248
249
251
252