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3
PARAMETERS
Description of parameters
3.4.8 Displaying the life of the converter parts (Pr. 31 to Pr. 33)
(1) Life alarm display and signal output (Y14 signal, Pr. 31 )
Whether any of the control circuit capacitor, cooling fan, and inrush current limit circuit has reached the life alarm output
level or not can be checked by Pr. 31 Life alarm status display
and life alarm signal (Y14).
The life alarm signal (Y14) turns ON when any of the control circuit capacitor, cooling fan and inrush current limit circuit
reaches the life alarm output level.
For the terminal used for the Y14 signal, set "14 (positive logic)" or "114 (negative logic)" to any of Pr. 11 to Pr. 16 (output
terminal function selection).
Degrees of deterioration of control circuit capacitor, cooling fan and inrush current limit circuit can be diagnosed by the
monitor.
When any part has approached the end of its life, an alarm can be output by self diagnosis to prevent a fault.
(Use the life check of this function as a guideline since the life is calculated theoretically.)
Parameter
Number
Name Initial Value
Setting
Range
Description
31 Life alarm status display 0 (0 to 15)
Displays whether the control circuit capacitor, cooling
fan, and each parts of the inrush current limit circuit has
reached the life alarm output level or not. Reading only
32
Inrush current limit circuit life
display
100% (0 to 100%)
Displays the deterioration degree of the inrush current
limit circuit. Reading only
33
Control circuit capacitor life
display
100% (0 to 100%)
Displays the deterioration degree of the control circuit
capacitor. Reading only
Pr. 255
(decimal)
bit
(binary)
Inrush Current
Limit Circuit Life
Cooling
Fan Life
Control Circuit
Capacitor Life
13 1101
12 1100
9 1001
8 1000
5 0101
4 0100
1 0001
0 0000
:With warnings, : Without warnings
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.
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0
bit0 Control circuit capacitor life
1
15bit 7 0
bit2 Cooling fan life
bit3 Inrush current limit circuit life
Pr. 31 read Pr. 31 setting read
Bit image is displayed
in decimal
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