Viewing Device Variables And Diagnostics - Fisher FIELDVUE DVC6200 Instruction Manual

Viewing Device Variables and Diagnostics

Temperature Sensor
Temperature Sensor Alert—This alert is indicated
when the instrument temperature sensor fails, or the
sensor reading is outside of the range of −40 to 85_C
(−40 to 185_F). The temperature reading is used
internally for temperature compensation of inputs. If
this alert is indicated, restart the instrument and see if
it clears. If it does not clear, replace the printed wiring
board assembly.
D Environment— If an environment alert is active
it will appear under ENVIRO ALERTS.
Supply Pressure
Supply Pressure Lo Alert—This alert is indicated
when supply pressure is lower than the configured
limit.
Aux Terminal Alert
Aux Terminal Alert—This alert is set when the
auxiliary input terminals are either open or closed,
depending upon the selection for the Aux In Alrt State.
Loop Current Validation Alert— This alert is
activated if the loop current is out of valid range. If the
control system is known to output currents outside of
this range, the loop current shutdown should not be
enabled. If this alert is indicated, clear the alert by
restarting the instrument with the loop current verified
to be in the valid range. If the alert does not clear,
replace the printed wiring board.
D Travel— If a travel alert is active it will appear
under TRAVEL ALERTS.
Travel Deviation
Travel Deviation Alert—The difference between
Setpoint and Travel is greater than the configured
limits.
Travel Limit
Travel Alert Hi Hi—This alert is indicated if the
Travel is greater than the configured limit.
Travel Alert Lo Lo—This alert is indicated if the
Travel is lower than the configured limit.
Travel Limit Hi/Lo
Travel Alert Hi—This alert is indicated if the Travel
is greater than the configured limit.
Travel Alert Lo—This alert is indicated if the Travel
is lower than the configured limit.
Travel Limit / Cutoff
Travel Limit/Cutoff Hi—This alert is indicated if the
Travel is limited high or the high cutoff is in effect.
Travel Limit/Cutoff Lo—This alert is indicated if the
Travel is limited low or the low cutoff is in effect.
September 2010
Table 6-1. Alerts Included in Alert Groups for Alert Record
Alert Group
Valve Alerts
Failure Alerts
Miscellaneous Alerts
D Travel History— If a travel history alert is active
it will appear under TVL HIST ALERTS.
Cycle Count
Cycle Count Alert—This alert is indicated if the
Cycle Counter exceeds the Cycle Count Alert Point.
Travel Accumulator
Travel Accumulator Alert—This alert is indicated if
the Travel Accum exceeds the Travel Accumulator
Alert Point.
D SIS (ODV only)— If an SIS alert is active it will
appear under SIS ALERTS.
Partial Stroke Test (PST)
Valve Stuck or Pressure/Travel Path
Obstructed—This alert is indicated if the valve is stuck
or the pressure/travel path is obstructed.
End Point Pressure Deviation
Pressure Deviation Alert—The alert is indicated if
the difference between the target pressure and the
actual pressure exceeds the Pressure Deviation Alert
Point for a period of time greater than the Pressure
Deviation Time.
Locked in Safety Alert—This alert is indicated if the
ODV unit is locked in the safety position.
D Alert Record
Alert Record not Empty—This alert indicates that an
alert has been saved to the alert record.
Alrt Record Full—This alert indicates that the alert
record is full.
Viewing Instrument Status (2-2)
To view the instrument status, from the Device
Diagnostics menu select Status. This menu item
indicates the status of the Operational items listed
below. The status of more than one operational item
may be indicated.
Alerts Include in Group
Travel Alert Lo
Travel Alert Hi
Travel Alert Lo Lo
Travel Alert Hi Hi
Travel deviation
Drive signal
Flash ROM fail
Drive current fail
Ref Voltage fail
NVM fail
Temperature sensor fail
Pressure sensor fail
Travel sensor fail
Auxiliary input
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