Cooling Fan Operation Selection - Mitsubishi Electric 800 Series Instruction Manual

10.2

Cooling fan operation selection

A cooling fan is built into the inverter can be controlled.
Pr. Name
244 Cooling fan
H100 operation selection
 Cooling fan always ON (Pr.244 = "0")
• When Pr.244 = "0", the cooling fan operates at power ON. If the fan stops at this time, the inverter finds that the fan
operation is faulty and the indication of the "FN" (Fan alarm) is displayed on the operation panel. The Fan fault output (FAN)
signal and the Alarm (LF) signal are output.
• For the terminal used for the FAN signal output, set "25" (positive logic) or "125" (negative logic) in any parameter from
Pr.190 to Pr.196 (Output terminal function selection), and for LF signal, set "98" (positive logic) or "198" (negative
logic)".
 Cooling fan operation control (Pr.244 = "1" (initial value))
• The cooling fan operation is controlled when Pr.244 = "1". When the inverter is running, the cooling fan operates constantly.
When the inverter is stopped, the cooling fan operates depending on the temperature of the inverter heat sink. If the fan
stops although it meets the conditions for running, fan operation is regarded as faulty, "FN" is displayed on the operation
panel, and the FAN signal and LF signals are output.
 Cooling fan operation command (Y206) signal
• The Cooling fan operation command (Y206) signal can be output when the inverter cooling fan meets the conditions for
running. The function can be used when the fan installed on the enclosure is synchronized with the inverter cooling fan.
• The Y206 signal indicates the operating command condition of the inverter cooling fan depending on the power supply ON/
OFF or the Pr.244 settings. The signal does not indicate the actual operation of the cooling fan. (The signal is output even
if the cooling fan is stopped due to a fault.)
• To use the Y206 signal, set "206" (positive logic) or "306" (negative logic) in one of Pr.190 to Pr.196 (Output terminal
function selection) to assign function to an output terminal.
NOTE
• The cooling fan is installed on the FR-E820-0080(1.5K) or higher, the FR-E840-0040(1.5K) or higher, and FR-E860-
0027(1.5K) of higher.
• Changing the terminal assignment using Pr.190 to Pr.196 (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.196 (Output terminal function
Initial value Setting range
0
1
1
selection)page 250
Description
Cooling fan ON/OFF control disabled. (The cooling fan is always ON at
power ON.)
A cooling fan operates at power ON.
Cooling fan ON/OFF control enabled.
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.
10. (H) Protective Function Parameters
10.2 Cooling fan operation selection
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