Emerson Fisher FIELDVUE DVC6000, Инструкция по эксплуатации

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DVC6000 Digital Valve Controllers
September 2013 4-12
Table 4-7. Typical Lead/Lag Filter Settings for Instrument Level ODV
Parameter Description Typical Value
Lag Time
First order time constant. A value of 0.0 will disable the
lead-lag filter.
0.2 sec
Opening Lead/Lag Ratio Initial response to the filter in the opening direction. 2.0
Closing Lead/Lag Ratio Initial response to the filter in the closing direction. 2.0
Lead-Lag Boost
Initial conditions of the lead-lag filter when the lower
travel cutoff is active.
Off
Alert Setup (1-2-3)
The following menus are available for configuring
Alerts. Items on the menus may be changed with the
instrument In Service. Protection does not need to be
removed (no need to set to None). Alerts are not
processed when a Diagnostic is in progress. Select
Configure, Detailed Setup, and Alerts. Follow the
prompts on the Field Communicator display to
configure the following Alerts: Electronic Alerts,
Sensor Alerts, Environment Alerts, Travel Alerts,
Travel History Alerts, SIS Alerts (instrument level ODV
only), and Alert Record.
Note
The Alerts section covers alerts and
shutdowns. An alert, if enabled, can
provide information on operation and
performance issues. A shutdown, if
enabled, and upon the occurrence of
the associated failure alert, will cause
the instrument air output to go to the
Zero Power Condition as per figure
4-6. It will remain latched in that
condition until power to the
instrument is cycled and the failure
alert has cleared. While in shutdown
condition the instrument will remain
powered up and able to communicate
via HART.
Electronics Alerts (1-2-3-1)
Drive Current Shutdown— When enabled, the
instrument shuts down whenever the drive current
does not read as expected.
Drive Signal Alert (1-2-3-1-2)
Drive Signal Alert checks the drive signal and
calibrated travel. If one of the following conditions
exists for more than 20 seconds, the Drive Signal Alert
is set.
For the case where Zero Power Condition is defined
as closed:
Drive Signal < 10% and Calibrated Travel > 3%
Drive Signal > 90% and Calibrated Travel < 97%
For the case where Zero Power Condition is defined
as open:
Drive Signal < 10% and Calibrated Travel < 97%
Drive Signal > 90% and Calibrated Travel > 3%
Drive Signal Alert Enable—Yes or No. Activates
checking of the relationship between the Drive Signal
and the calibrated travel.
Drive Signal—Shows the value of the instrument
drive signal in % (percent) of maximum drive.
Processor Impaired Alerts (1-2-3-1-3)
Offline/Failed Alert Enable—If enabled, set when
the device is in a failed state and not controlling the
input.
Power Starvation Alrt Enab—When enabled, an
alert is generated whenever power starvation is
detected. Firmware 2
−
7.
Low Power Write Fail Enable—When enabled, an
alert is generated if a write to the instrument is
attempted and fails when the loop current is less than
3.5 mA. Firmware 9, 10 and 11.
Non-Critical NVM Alert Enable—When enabled,
an alert is generated whenever there is a failure
associated with non-critical NVM (non-volatile
memory).
Critical NVM Shutdown—When enabled, the
instrument shuts down whenever there is a failure
associated with critical NVM (non-volatile memory).
Flash ROM Shutdown—When enabled, the
instrument shuts down whenever there is a failure
associated with flash ROM (read only memory).
No Free Time Shutdown—When enabled, the
instrument shuts down whenever there is a failure
associated with No Free Time.
Reference Voltage Shutdown—When enabled,
the instrument shuts down whenever there is a failure
associated with the internal voltage reference.
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