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3.4.10 Cooling fan operation selection (Pr. 36)
Cooling fans built into the converter can be controlled.
Parameter
Name
Number
36
Cooling fan operation selection
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)".
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.
3.4.11 Instantaneous power failure detection hold (Pr. 44)
Use this function to check the history of instantaneous power failures.
Parameter
Name
Number
Instantaneous power failure
44
detection signal clear
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).
IPF signal
Y16 signal
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.
Initial
Value
1
Initial
Value
9999
OFF
ON
OFF
OFF
ON
Description of parameters
Setting
Range
A cooling fan operates at power ON.
0
Cooling fan ON/OFF control is invalid. (The cooling fan
is always ON at power ON)
Cooling fan ON/OFF control is valid.
The fan is always ON while the converter is running.
1
During a stop, the converter status is monitored and the
fan switches ON/OFF according to the temperature.
Setting
Range
Turns OFF the instantaneous power failure detection
0
hold signal (Y16).
Does not turn OFF the instantaneous power failure
9999
detection hold signal (Y16)
ON
OFF
ON
ON
OFF
Write Pr. 44="0"
Description
Description
OFF
3
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