User Manual
    <Appendix 8. Advanced Diagnostics>
A8-17
IM 01C25T02-01E
A8.2.13  Checklist
Fill out the below checklist according to the operation ow of the ILBD in order to keep the important 
information for the blockage detection.
Checklist (1/5)
No. Items Parameters Result Example
1 Enable Analog Alert to Be Generated
•  Uncheck the checkbox of “Diag Alm 
Disable” in ALARM_SUM.
ALARM_SUM (Index: 2063)
“Diag Alm Disable”
2 Priority Setting of Analog Alert
•  Enter a value of more than 3 to DIAG_
PRI. (3 is recommended.)
DIAG_PRI (Index: 2068) 3
3 Stability of PRIMARY_VALUE
(differential pressure/pressure) under 
normal condition
•  Check that the status of PRIMARY_
VALUE is “GOOD”.
•  Check the maximum and minimum 
values of PRIMARY_VALUE.
Status Good
PRIMARY_VALUE (Index: 2014) Max.:
Min.:
Max.: 12.3 kPa
Min.: 12.1 kPa
4 VALUE_FDP under normal condition
•  Check that the value of VALUE_FDP is 
more than 7×10
-10
.
VALUE_FDP (Index: 2086)
5 Start to obtain Reference values
•  Set Reference to DIAG_MODE.
DIAG_MODE (Index: 2066)
6 End of Reference Value Sampling
•  Check that DIAG_MODE is 
“Calcuration”, after the time set to 
DIAG_PERIOD passed.
DIAG_MODE (Index: 2066)
7 Alarm setting
•  Record the status of Checkbox in 
DIAG_OPTION.
DIAG_OPTION (Index: 2072)
A Blocking
 
Large Fluctuation of Low Side
 
Large Fluctuation of High Side
 
Low Side Blocking
 
High Side Blocking
 
B Blocking
 
Invalid Ref BlkF
 
Invalid Ref fSPh
 
Invalid Ref fSPl
 
Invalid Ref fDP
 
Outside Diagnosis Range
 
Reect Blockage to PV/SV/TV 
Status
 










