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PARAMETERS
Description of parameters
3.4.10 Cooling fan operation selection (Pr. 36)
In either of the following cases, fan operation is regarded as faulty, and [FN] is displayed on the operation panel, and the fan
fault (FAN) and alarm (LF) signals are output.
Pr. 36 = "0"
When the fan comes to a stop with power ON.
Pr. 36 = "1"
When the fan stops during the fan ON command while the converter is running
For the terminal used for the FAN signal output, set "9 (positive logic)" or "109 (negative logic)" to any of Pr. 11 to Pr. 16
(output terminal function selection), and for LF signal, set "98 (positive logic)" or "198 (negative logic)".
3.4.11 Instantaneous power failure detection hold (Pr. 44)
Instantaneous power failure detection hold signal (Y16) turns ON when the instantaneous power failure signal (IPF) turns
ON during the high power factor converter operation. The Y16 signal is turned OFF by a reset or by setting Pr. 44 = "0".
For the terminal used for the Y16 signal, set "16 (positive logic)" or "116 (negative logic)" to any of Pr. 11 to Pr. 16 (output
terminal function selection).
Cooling fans built into the converter can be controlled.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
36 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 converter is running.
During a stop, the converter status is monitored and the
fan switches ON/OFF according to the temperature.
NOTE
Changing the terminal assignment using Pr. 11 to Pr. 16 (output terminal function selection) may affect other functions. Set
parameters after confirming the function of each terminal.
Use this function to check the history of instantaneous power failures.
Parameter
Number
Name
Initial
Value
Setting
Range
Description
44
Instantaneous power failure
detection signal clear
9999
0
Turns OFF the instantaneous power failure detection
hold signal (Y16).
9999
Does not turn OFF the instantaneous power failure
detection hold signal (Y16)
NOTE
Pr. 44 is always read as "9999". The Y16 signal does not turn OFF even if Pr. 44 = "9999".
Changing the terminal assignment using Pr. 11 to Pr. 16 (Output terminal function selection) may affect other functions. Set
parameters after confirming the function of each terminal.
ON
ONOFF
OFF
Write Pr. 44="0"
IPF signal
Y16 signal
ONOFF ONOFF
OFF
ON
OFF
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