Pressure Deviation Time; Alert Record; Alert Groups - Fisher FIELDVUE DVC6200 Instruction Manual

DVC6200 Digital Valve Controller
D SIS Alerts (1-2-3-6)
(Instrument Level ODV)
Note
SIS Alerts are only available for
instrument level ODV.
D PST Press Limit—Partial Stroke Test
4
Pressure Limit defines the output pressure that will
cause the partial stroke test to stop. For actuators
that vent from the test starting point, the pressure
limit will be a minimum value. For actuators that fill
from the test starting point, the pressure limit will
be a maximum value.
D Press Dev Alrt Enab—Pressure Deviation
Alert Enable, select Yes or No. This alert notifies a
monitoring system when a deviation in the actuator
pressure has occurred. This is used when the
instrument is controlling via pressure (Pressure
Control Mode is enabled) to the actuator (rather
than valve position) to prevent saturation of the
pneumatic output. When enabled, this alert checks
the difference between the target pressure and the
actual pressure. If the difference exceeds the
Pressure Deviation Alert Point for more than the
pressure deviation time, the Pressure Deviation
Alert is set. It remains set until the difference
between the target pressure and the actual
pressure is less than the Pressure Deviation Alert
Point. The pressure deviation alert point and
deviation alert time are configurable and can be
disabled altogether. Factory default is Yes.
D Press Dev Alrt Pt—Pressure Deviation Alert
Point is the alert point for the difference between
the pressure target and the actual pressure. When
the difference exceeds the alert point for more than
the Pressure Deviation Time, the Pressure
Deviation Alert is set. After completion of the Setup
Wizard or Auto Travel calibration a default value of
2 psi is set. This will generate an alert when the
actuator pressure is not within $2 psi of the target
pressure.
D Press Dev Time—Pressure Deviation Time is
the time, in seconds, that the pressure deviation
must exceed the Pressure Deviation Alert Point
before the alert is set. The Pressure Deviation
Time is set to 30 seconds by default.
46
Table 4-7. Alerts Included in Alert Groups for Alert Record
Alert Group
Valve Alerts
Failure Alerts
Miscellaneous Alerts
D Alert Record
(1-2-3-6) HC, AD, and PD
(1-2-3-7) ODV
To be recorded, an alert must both be enabled for
reporting, and the group in which it resides must be
enabled for recording. Table 4-7 lists the alerts
included in each of the groups. When any alert from
an enabled group becomes active, active alerts in all
enabled groups are stored.
D Alrt Record Not Empty Enab—Yes or No.
When enabled indicates when an alert has been
recorded. Factory default is Yes.
D Alrt Record Full Enab—Yes or No. When
enabled indicates when the Alert Record is full.
Factory default is Yes.
D Display Record—Displays all recorded alerts
and the date and time the alerts were recorded.
D Clear Record—Clears the alert record. To
clear the alert record, all alerts in enabled groups
must be inactive.

Alert Groups

(1-2-3-6-5) HC, AD, and PD
(1-2-3-7-5) ODV
D Failure Group Enab—Permits enabling the
Failure Alert group. Table 4-7 lists the alerts
included in each of the groups. Factory default is
Yes.
D Valve Group Enab—Permits enabling the
Valve Alert group. Table 4-7 lists the alerts
included in each of the groups. Factory default is
Yes.
D Misc Group Enab—Permits enabling the
Miscellaneous Alert group. Table 4-7 lists the alerts
included in each of the groups. Factory default is
No.
Alerts Include in Group
Travel Lo Alert
Travel Hi Alert
Travel Lo Lo Alert
Travel Hi Hi Alert
Travel Deviation Alert
Drive Signal Alert
Flash ROM Fail
No Free Time
Reference Voltage Fail
Drive Current Fail
Critical NVM Fail
Temperature Sensor Fail
Pressure Sensor Fail
Travel Sensor Fail
Auxiliary input
September 2010