(H) Protective function parameter
340
PARAMETERS
5.10.3 Cooling fan 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, fan operation is regarded as faulty,
Fan alarm [FN] is displayed on the operation panel, and the fan fault (FAN) and alarm (LF) signals are output.
• 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). For the LF signal, set "98 (positive logic)" or "198 (negative logic)".
Cooling fan operation control (Pr.244 = "1" (initial value), "101 to 105")
• The cooling fan operation is controlled when Pr.244 = "1". When the inverter is running, the cooling fan operates; and when
it is stopped, the cooling fan operates according to the temperature of the inverter heatsink. 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.
• To prevent the cooling fan from turning ON and OFF repeatedly during frequent starts/stops (inching), the cooling fan stop
waiting time can be set. The waiting time when Pr.244 = "101 to 105" is Pr.244-100 (or 1 s, if the Pr.244 = "101").
Cooling fan operation command signal (Y206 signal)
• The cooling fan operation command signal (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.
• 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-A820-00105(1.5K) or higher and FR-A840-00083(2.2K) or 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.
Pr.190 to Pr.196 (output terminal function selection) page 384
A cooling fan is built into the inverter and its operation can be controlled.
Pr. Name
Initial
value
Setting
range
Description
244
H100
Cooling fan operation
selection
1
0
A cooling fan operates at power ON.
Cooling fan ON/OFF control is invalid. (The cooling fan is
always ON at power ON)
1
Cooling fan ON/OFF control is 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.
101 to 105
Cooling fan ON/OFF control is valid.
Set the cooling fan stop waiting time within 1 to 5 s.
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