BIFFI IMVS2000v2 - Page 75

Installation, Operation and Maintenance Manual
September 2019
MAN720_IMVS2000v2_IOM Rev. 6
Section 8: Table of Alarms
Table of Alarms
Alarm Acronym Composition Squelched By (*) (**) (***)
Close Position
Out Of Range
CPOS
In case of “Position Request” = 0%:
the actual position differs from the Position Request (0%) by
more than the “Closed Position Hysteresis” (“Cl. Pos. %”)
(Actual Position – 0%) > “Cl. Pos. %”
It is cyclically check (period = 30 seconds).
The check is interrupted during Calibration, Signatures, FST and
PST executions.
• “Al. CPOS En.” = “No”
• “Reset Alarms” command
• Power-on Reset
Low Supply
Pressure
LSP
The actual pressure is lower than the “Low Pressure Limit”
(“L. Pr. Lim.”)
Actual Pressure 1and Pressure 2 < “L. Pr. Lim.”
It is cyclically check (period = 30 seconds).
The check is interrupted during Calibration, Signatures, FST and
PST executions.
• “Pr. S.1 -2.” = “None”
• “Act.Mode” = “Double”
• Al. LSP En.” = “No”
• “Reset Alarms” command
• Power-on Reset
• “Act. Mode”= “Single” AND
“Fail Act. “ = “CL” AND “Pos.
Req” = 0%
• “Act. Mode” = “Single” AND
“Fail Act. “ = “OP” AND “Pos.
Req” = 100%
High Supply
Pressure
HSP
The actual pressure is greater than the “High Pressure Limit”
(“H. Pr. Lim.”)
Actual Pressure 1 and Pressure 2 > “H. Pr. Lim.”.
It is cyclically check (period = 30 seconds).
The check is interrupted during Calibration, Signatures, FST and
PST executions.
Starting from Logic Card FW Revision 1.00.01, if HSP is active,
the PST is not executed.
• Pr. S.1 -2.” = “None”
• “Act.Mode” = “Double”
• Al. HSP En.” = “No”
• “Reset Alarms” command
• Power-on Reset
• “Act. Mode” = “Single” AND
“Fail Act. “ = “CL” AND “Pos.
Req” = 0%
• “Act. Mode” = “Single” AND
“Fail Act. “ = “OP” AND “Pos.
Req” = 100%
Low Process
Pressure
LPP
The actual process pressure is lower than the “Low Process Pres-
sure Limit” (“L. Proc. Lim-”).
Actual Process Pressure < “L. Proc. Lim.”.
It is cyclically check (period = 30 seconds).
The check is interrupted during Calibration, Signatures and PST
executions.
Starting from Logic Card FW Revision 1.00.01, if HSP is active,
the PST is not executed.
• “Proc. S.” = “None”
• Al. LPP En.” = “No”
• “Reset Alarms” command
• Power-on Reset
High Process
Pressure
HPP
The actual process pressure is greater than the “High Process
Pressure Limit” (“H. Proc. Lim.”).
Actual Process Pressure > “H. Proc. Lim.”.
It is cyclically check (period = 30 seconds).
The check is interrupted during Calibration, Signatures and PST
executions.
• “Proc. S.” = “None”
• Al. HPP En.” = “No”
• “Reset Alarms” command
• Power-on Reset
Opening not
move
OPNM
(****)
The actuator/valve does not move during the last Opening FST
or “Base S.Status” = “Conf. Err” or “Mnt S.Status” = “Conf. Err.”
It is active if during the last Opening FST it is not possible to
reach at least the position = “Cl.Break Pos” A new Opening FST
(without the above condition) resets this alarm.
• “Reset Alarms” command
• Power-on Reset
• Calibration
Closing not
move
CLNM
(****)
The actuator/valve does not move during the last Closing FST
or “Base S.Status” = “Conf. Err” or “Mnt S.Status” = “Conf. Err.”
It is active if during the last Closing FST it is not possible to reach at
least the position = 100% - “Op.Break Pos.”
A new Closing FST (without the above condition) resets this alarm.
• “Reset Alarms” command
• Power-on Reset
• Calibration
Opening Cycle
Time Limit
CLNM
(****)
Start position >= 0% + “Cl. Br. Pos” OR
Last Position plotted < 100% - “Op. Br. Pos.”
A new Opening FST (without the above conditions) resets this
alarm.
• “Al. OPCT En.” = “No”
• “Reset Alarms” command
• Power-on Reset
• Calibration
Closing Cycle
Time Limit
CLCT
(****)
Start position <= 10 0% - “Op. Br. Pos” OR
Last Position plotted > 0% + “Cl. Br. Pos.”
A new Closing FST (without the above conditions) resets this alarm.
• “Al. OPCT En.” = “No”
• “Reset Alarms” command
• Power-on Reset
• Calibration
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