Instruction Manual Supplement
D104299X012
DVC6200 SIS
October 2018
24
PST Abnormal Notification is a user configurable list of alerts that will notify the user of an abnormal PST using
command 48 Byte3 bit 6. The user can define if the occurrence of each alert will mark the test as Red or Yellow in the
PST evaluation in addition to the ability to disable it.
D Pressure Threshold, either the outgoing pressure or incoming pressure threshold has been violated.
D High Friction Breakout Pressure, the force required to breakout of the normal end of travel is higher than the user
configured threshold. The breakout is defined as the pressure at which the travel crosses the user configured
breakout travel, either high or low depending on the configured normal end.
D Low Friction Breakout Pressure, the force required to breakout of the normal end of travel is lower than the user
configured threshold. The breakout is defined as the pressure at which the travel crosses the user configured
breakout travel, either high or low depending on the configured normal end.
D Max Travel Exceeded, the test actual travel has violated the user configured maximum travel.
D Minimum Travel not achieved, the actual travel during the test did not achieve the user configured minimum
travel.
D Not Seated, the valve did not return to the normal end as defined by the breakout high or breakout low
depending on the normal end of travel.
D Travel Deviation, the error between the actual valve travel and set point exceeded the user configured value for a
user defined period.
D Solenoid Valve Test abnormal
Figure 29. Time Series Representation of Short Duration PST
TRAVEL
PAUSE TIME
j MINIMUM TRAVEL MOVEMENT
k TRAVEL TARGET MOVEMENT
l MAX. ALLOWABLE TRAVEL
NORMAL
NORMAL
TRAVEL
j
j
k
k
TIME
TIME
EARLY
TURNAROUND
BREAKOUT
TIMEOUT
RETURN
LEAD
REDUCED
PST TIME
l
OUTGOING
RAMP RATE
INCOMING
RAMP RATE
RETURN
LEAD
SHORT DURATION PST
ENABLED
SHORT DURATION PST
DISABLED
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