YOKOGAWA DPharp EJXC40A, Руководство пользователя

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<Appendix 2. ILBD Check List>
A2-3
IM 01C25W05-01EN
Checklist (3/5)
Go to the following step according to the result of "Invalid Ref xx" shown in the Diag Error of 8th check item.
Diag Error
Check
item
Invalid Ref Pres 1 Invalid Ref Pres 2 Invalid Ref DP
  
→
9-a
  
→
9-b

: The alarm is generated.

: The alarm is not generated.
No. Items Parameters Result Example
9-a Simulation of Blockage detection operation
• Pres 1 Side Blocking: 9-a-1
• Pres 2 Side Blocking: 9-a-2
• Both Side Blocking: 9-a-3
9-a-1 Pres 1 Side Blocking
• Close the high-pressure side valve
completely.
• Record the values of fDP , fP1 , fP2 , and BlkF
after the certain time,
( Diag Period X Diag Supp Count ), passed.
*: Record the value after checked that the
status is “GOOD”.
fDP* 3.74856E-08
fP2* 6.23277E-09
fP1* 1.51409E-10
BlkF 0.8658873
• Record the status of Checkbox in Diag
Option .
• Check that the alarms status of “A Blocking”
and “Pres 1 Side Blocking” are set.
Note: If the alarm of “ILBD over range” is generated,
the valve may be closed too much tightly. Open
valve a little and record the updated status of the
parameters.
Diag Option
A Blocking
 
Large Fluct L
 
Large Fluct H
 
Pres 2 Side Blocking
 
Pres 1 Side Blocking
 
B Blocking
 
Invalid Ref BlkF
 
Invalid Ref Pres 1
 
Invalid Ref Pres 2
 
Invalid Ref DP
 
ILBD over range
 
• Check that the alarm of “Pres 1 Side
Blocking” is generated.
• Check that the alarm of “Pres 2 Side
Blocking” is not generated.
Diag Error
Pres 2 Side Blocking
 
Pres 1 Side Blocking
 