9(19)
If the limit switches are not installed, the POS_D.VALUE is
calculated based on the position sensor measurement. The
closed and open limits are 2% and 98%.
3.1.2.2 Profibus Communication Fail Safe Ac-
tion
Fail Safe Mode
Defines reaction of device if communication fault is still
detected after fail safe time. Options are
•
Fail Safe Value is used as control regulator input
•
Storing last valid setpoint
•
Positioner does Positioner Fail Action
Fail Safe Time
Time in seconds from detection of failure in output block up
to the output action of the block output if the condition still
exists.
Fail Safe Default Value
Default Value for the setpoint input if communication fault is
detected.
3.1.2.3 Valve Diagnostics
Valve total travel warning limit
Warning limit for valve total travel.
Valve reversals warning limit
Warning limit for valve reversals.
Actuator total travel warning limit
Warning limit for actuator total travel.
Actuator reversals warning limit
Warning limit for actuator reversals.
Spool valve travel warning limit
Warning limit for spool valve total travel.
Spool valve reversals warning limit
Warning limit for spool valve reversals.
Steady state deviation warning limit
Warning limit for steady state deviation. Steady state de-
viation average value is checked against the warning limit
with 24 hour intervals. If the limit is exceeded, warning is
activated.
Steady state deviation alarm limit
Online alarm limit for steady state deviation. Steady state
eviation measurement has to be over this limit value for a
time indicated by Steady state deviation latch time.
Steady state deviation latch time
Online alarm activation time for steady state deviation
Dynamic state deviation warning limit
Warning limit for dynamic deviation. Dynamic deviation
average value is checked against the warning limit with 24
hour intervals. If the limit is exceeded, warning is activated.
Stiction lo warning limit
Low warning limit for stiction. Stiction average value is
checked against the warning limit with 24 hour intervals. If
the limit is exceeded, warning is activated.
Stiction hi warning limit
High warning limit for stiction. Stiction average value is
checked against the warning limit with 24 hour intervals. If
the limit is exceeded, warning is activated.
Stiction lo alarm limit
Online low alarm limit for stiction. Stiction measurement
has to be below this limit value for a time indicated by
STICTION_LATCH_NBR.
Stiction hi alarm limit
Online high alarm limit for stiction. Stiction measurement
has to be above this limit value for a time indicated by Stic-
tion latch number.
Stiction latch number
Online alarm activation number for stiction.
Load for opening lo warning limit
Low warning limit for load for opening. Load for opening
average value is checked against the warning limit with 24
hour intervals. If the limit is exceeded, warning is activated.
Load for opening hi warning limit
High warning limit for load for opening. Load for opening
average value is checked against the warning limit with 24
hour intervals. If the limit is exceeded, warning is activated.
Load for opening lo alarm limit
Online low alarm limit for load for opening. Load for open-
ing measurement has to be below this limit value for a time
indicated by Load for opening latch number.
Load for opening hi alarm limit
Online high alarm limit for load for opening. Load for
opening measurement has to be above this limit value for a
time indicated by Load for opening latch number.
Load for opening latch number
Online alarm activation number for load for opening.
Supply pressure lo alarm limit
Online alarm low limit for supply pressure. Supply pressure
measurement has to be below this limit value for a time
indicated by Supply pressure latch time.
Supply pressure hi alarm limit
Online alarm high limit for supply pressure. Supply pres-
sure measurement has to be above this limit value for a
time indicated by Supply pressure latch time.
Supply pressure latch time
Online alarm activation time for supply pressure.
Device temperature lo alarm limit
