LSIS LSLV-S100 - Page 236

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Learning Protection Features
3 Set Pr-61 (CAP Diag) to “1” (Ref Diag). Then, the direct current set at Pr-60 (CAP DiagCurr)is
output.
• The capacitor diagnosis is only available when the inverter is stopped.
• If Pr-61is set to 1 (Ref Diag), the displayed value at Pr-63 reflects 100% of the measured
capacitance.
• If you plan to perform a capacitor diagnosis using Pr-61(CAP Diag), the initial capacitance
must be measured when the inverter is used for the first time. A capacitance measured on
a used inverter leads to inaccurate inspection results due to an incorrect reference
capacitance value.
4 Turn off the input to the inverter.
5 Turn on the inverter when a low voltage trip (LVT) occurs.
6 View the value displayed at Pr-63 (CAP Diag Level). When Pr-61 is set to “1” (Ref Diag), Pr-63
displays100% of the capacitance.
[Main Capacitor Diagnosis details]
Group
Code
Name
LCD Display
Setting value
Setting Range
Unit
Pr
60
Capacitance
Diagnose current
Level
CAP. DiagPerc
0.0 10.0-100.0 %
61
C A P. Diagnosis
mode
C A P. D i ag
0
0
None
%
1 Ref Diag
2 Pre Diag
3 Init Diag
62
CAP Exchange
Level
CAP Exchange
Level
0
50.0 ~ 95.0
%
63
CAP Diag Level
CAP Diag Level
0
0.0 ~ 100.0
%
Inspecting the capacitor life and initializing the capacitance reference
Refer to the following instructions to inspect the capacitor life and initialize the capacitance
reference.
Note
To perform a capacitor diagnosis, a capacitance reference must be measured and registered by setting
Pr-61 (CAP Diag) to 1 (Ref Diag) when the inverter is used for the first time. The measured reference
value is registered at PRT-63, and is used asthe reference for the capacitor life diagnosis.
1 On an inverter whose run time has reached the cumulated time for capacitor replacement,
set Pr-61 (CAP Diag) to 2 (Pre Diag).