Installation, Electrical and Pneumatic Connections,
and Basic Setup and Calibration3...............
Scope of Manual3..............................
Instrument Description3........................
Terminology4.................................
Specifications4................................
Related Documents7...........................
Educational Services8...........................
Section 2 Detailed Setup and Calibration via
HART Communication9.................
Detailed Setup9...............................
Setting Modes9..............................
Instrument Mode9........................
Control Mode9...........................
Restart Control Mode10....................
Restarting the Instrument10................
Burst Mode10............................
Protection12.................................
General Information14........................
HART Tag
Message
Descriptor
Date
Valve Serial Number
Instrument Serial Number
Polling Address
LUI Language
W8755
Measured Variable Units and Ranges15...........
Analog Input Units
Analog Input Range High and Low
Pressure Units
Temperature Units
Actuator and Valve Information16...............
Maximum Supply Pressure
Actuator Style
Valve Serial Number
Valve Style
Zero Control Signal
Setting Response16...........................
Tuning Set
Damping Factor
Expert Tuning Gains
Input Characteristic
Custom Characteristic Table
Set Point Filter Time
Limits and Cutoffs
Minimum Opening and Closing Time
Integral Settings
Setting Alerts19..............................
Travel Alerts20............................
Cycle Counter Alert22......................
Other Alerts23............................
Alert Record23............................
www.Fisher.com
DVC2000 Digital Valve Controller
July 2020
Instruction Manual
D103176X012
Self-Test Failure for Instrument Shutdown24......
Transmitter/Switches25.......................
Tuning26.....................................
Automatic26.................................
Manual26...................................
Calibration27..................................
Analog Input Calibration27.....................
Using the Field Communicator27............
Using Local Operator Interface28............
Auto Calibrate Travel28........................
Manual Calibrate Travel29......................
Analog Calibration Adjust29................
Digital Calibration Adjust29.................
Pressure Sensor Calibration30..................
Output Pressure Sensor30..................
Position Transmitter31........................
Section 3 Viewing Device Variables and
Diagnostics33.........................
Viewing Variables33............................
Analog Input, Travel, Valve Set Point, Drive Signal
and Output Pressure33......................
Additional Instrument Variables33...............
Viewing Device Information34...................
Viewing Instrument Status35....................
Section 4 Maintenance and
Troubleshooting39.....................
Stroking the Digital Valve Controller Output39......
Replacing the Instrument40.....................
Replacing the Magnetic Feedback Assembly41......
Component Replacement41.....................
Replacing the I/P Converter41..................
Replacing the Pneumatic Relay43...............
Troubleshooting44.............................
Checking Available Voltage46....................
Technical Support Checklist47...................
Section 5 Parts49......................
Parts Ordering49...............................
Parts Kits49...................................
Parts List50...................................
Appendix A Principle of Operation55......
DVC2000 Operation55..........................
Appendix B Local Interface Flow Chart and
Field Communicator Menu Trees57.......
Glossary65............................
Index73..............................
2
Instruction Manual
D103176X012
Introduction and Specifications
Section 1 Introduction and Specifications1‐1‐
Installation, Electrical and Pneumatic Connections, and Basic
Setup and Calibration using the Local Operator Interface
July 2020
Refer to the DVC2000 Quick Start Guide (D103203X012) for DVC2000 installation,
connection, and basic setup and calibration using the local operator interface. If a copy
of this quick start guide is needed scan or click the QR code at the right, contact your
Emerson sales office
or visit our website at Fisher.com.
Scan or click
to access
field support
Scope of Manual
This instruction manual is a supplement to the quick start guide that ships with every instrument. This instruction
manual includes specifications, detailed configuration and calibration using an Emerson Field Communicator,
maintenance and troubleshooting information, and replacement part details.
Notes
Fast-key sequences referenced in this manual are only applicable to the 475 Field Communicator. They do not apply to the Trex
Device Communicator.
™
ValveLink
tests. For information on using ValveLink software with the instrument, refer to the appropriate user guide or help.
software can also be used for detailed configuration and calibration, as well as performing diagnostic and performance
Do not install, operate, or maintain a DVC2000 digital valve controller without being fully trained and
qualified in valve, actuator, and accessory installation, operation, and maintenance. To avoid personal
injury or property damage, it is important to carefully read, understand, and follow all of the contents of
this manual, including all safety cautions and warnings. If you have any questions regarding these
instructions, contact your Emerson sales office before proceeding.
Instrument Description
The DVC2000 digital valve controller is a communicating, microprocessor-based current-to-pneumatic valve
positioner. It is designed to replace standard pneumatic and electro-pneumatic valve positioners.
In addition to the traditional function of converting an input current signal (4-20 mA) to a pneumatic output pressure,
the DVC2000 digital valve controller communicates via a local display panel and/or via the HART® protocol. An option
is available which provides isolated circuitry for two (2) integrated limit switches (for open/close valve indication) and a
valve position transmitter (for separate valve position feedback).
3
Introduction and Specifications
July 2020
Instruction Manual
D103176X012
Terminology
Instrument Level— There are four (4) levels of functionality available: AC, HC, AD and PD.
AC—This level provides the capability to setup and calibrate the positioner through the local user interface or the Field
Communicator.
HC—This level provides additional capability for advanced configuration of the positioner (such as travel limits/cutoffs,
custom characterization, and minimum open/closing time). Also, information is available through the HART protocol
for diagnostic alerts such as travel deviation, cycle count, and travel accumulation.
AD—This level provides advanced diagnostic capabilities for performance testing. When used with ValveLink software,
instrument health can be evaluated with tests such as Valve Signature, step response and dynamic error band. The
software program provides detailed analysis with graphics.
PD—This level provides automated, non-intrusive testing of the operating performance of the control valve assembly.
When used with ValveLink
affecting the process.
software, tests to isolate component degradation can be run on the valve assembly without
Local Interface— The DVC2000 comes standard with a Liquid Crystal Display (LCD) and four (4) pushbuttons. The local
interface provides the capability to setup and calibrate the positioner and view basic diagnostic messages.
Magnet Assembly—This is the feedback component that is mounted directly to the valve stem. It supplies a magnetic
field that is sensed by the digital valve controller.
Options Board—The DVC2000 digital valve controller is available with two (2) limit switches and a valve position
transmitter. The options board includes the additional circuitry and terminations that are required to support these
output signals.
Pole Piece—Inserted into the DVC2000 housing and protruding through the back of the instrument is a two-pronged
fork that houses the magnetic sensor for position feedback.
Specifications
Specifications for the DVC2000 digital valve controller are shown in table 1‐1.
WARNING
This product is intended for a specific range of application specifications. Incorrect configuration of a positioning
instrument could result in the malfunction of the product, property damage, or personal injury.
4
Instruction Manual
D103176X012
Table 1‐1. Specifications
Introduction and Specifications
July 2020
Available Configurations
J Integral mounting to the Fisher GX Control Valve
and Actuator System
J Quarter-turn rotary applications
J Sliding-stem applications
The DVC2000 digital valve controller can also be
mounted on other actuators that comply with IEC
60534-6-1, IEC 60534-6-2, VDI/VDE 3845 and
NAMUR mounting standards.
Input Signal
Analog Input Signal: 4-20 mA DC, nominal; split
ranging available
Minimum Voltage: Voltage available at instrument
terminals must be 8.5 volts for analog control, 9.0
volts for HART communication
Maximum Voltage: 30 volts DC
Minimum Control Current: 4.0 mA (below 3.5 mA
may cause microprocessor restart)
Overcurrent Protection: Input circuitry limits current
to prevent internal damage
Reverse Polarity Protection: No damage occurs from
reversal of loop current
Output Signal
Pneumatic signal as required by the actuator, up to
full supply pressure
Minimum Span: 0.5 bar (7 psig)
Maximum Span: 7 bar (101 psig)
Action: Single Acting, direct
Supply Pressure
(1)
Recommended: 0.5 bar (7 psig) greater than the
maximum actuator requirements
Maximum: 7 bar (101 psig)
Supply pressure medium must be clean, dry air or
noncorrosive gas
Per ISA Standard 7.0.01
A maximum 40 micrometer particle size in the air
system is acceptable. Further filtration down to 5
micrometer particle size is recommended. Lubricant
content is not to exceed 1 ppm weight (w/w) or
volume (v/v) basis. Condensation in the air supply
should be minimized
Per ISO 8573-1
Maximum particle density size: Class 7
Oil content: Class 3
Pressure Dew Point: Class 3 or at least 10_C less than
the lowest ambient temperature expected
-continued-
Temperature Limits
(1)
-40 to 85_C (-40 to 185_F). LCD may not be readable
below -20_C (-4 _F).
Air Consumption
Supply pressure:
At 1.5 bar (22 psig)
At 4 bar (58 psig)
Air Capacity
(2)
(3)
: 0.06 normal m3/h (2.3 scfh)
(4)
: 0.12 normal m3/h (4.4 scfh)
(2)
Supply pressure:
(3)
At 1.5 bar (22 psig)
At 4 bar (58 psig)
: 4.48 normal m3/h (167 scfh)
(4)
: 9.06 normal m3/h (338 scfh)
Independent Linearity
±0.5% of output span
Electromagnetic Compatibility
Meets EN 61326-1:2013
Immunity—Industrial locations per Table 2 of the
EN 61326-1 standard. Performance is shown
in table 1‐2 below
Emissions—Class A
ISM equipment rating: Group 1, Class A
Tested to NAMUR NE21 requirements.
Vibration Testing Method
Tested per ANSI/ISA 75.13.01 Section 5.3.5. A
resonant frequency search is performed on all three
axes. The instrument is subjected to the ISA specified
1/2 hour endurance test at each major resonance,
plus an additional two million cycles.
Input Impedance
The input impedance of the DVC2000 active
electronic circuit is not purely resistive. For
comparison to resistive load specifications, an
equivalent impedance of 450 ohms may be used. This
value corresponds to 9 V @ 20 mA.
Electrical Classification
Hazardous Area:
CSA—Intrinsically Safe and Non-incendive
FM—Intrinsically Safe and Non-incendive
ATEX—Intrinsically Safe
IECEx—Intrinsically Safe
5
Introduction and Specifications
July 2020
Table 1‐1. Specifications (continued)
Instruction Manual
D103176X012
Electrical Housing:
CSA—IP66 and Type 4X
FM, ATEX, IECEx—IP66
Other Classifications/Certifications
CUTR— Customs Union Technical Regulations
(Russia, Kazakhstan, Belarus, and Armenia)
ESMA— Emirates Authority for Standardization and
Metrology - ECAS-Ex (UAE)
INMETRO—National Institute of Metrology, Quality
and Technology (Brazil)
KGS— Korea Gas Safety Corporation (South Korea)
NEPSI—National Supervision and Inspection Centre
for Explosion Protection and Safety of
Instrumentation (China)
PESO CCOE— Petroleum and Explosives Safety
Organisation - Chief Controller of Explosives (India)
SABS— South African Bureau of Standards (South
Africa)
Contact your Emerson sales office
for
classification/certification specific information
Connections
Standard
Supply and Output Pressure: G1/4 internal
Electrical: M20 internal
Optional
Supply and Output Pressure: 1/4 NPT internal
Electrical: 1/2 NPT internal
Shaft Rotation
otary actuators with rated travel between 45
R
degrees and 180 degrees
Mounting
Designed for direct actuator mounting. For
weatherproof housing capability, the vent must be
positioned at the lowest point of the instrument.
product to be in compliance with Article 4 paragraph
3 of the PED Directive 2014/68/EU. It was designed
and manufactured in accordance with Sound
Engineering Practice (SEP) and cannot bear the CE
marking related to PED compliance.
Stem Travel
Linear actuators with rated travel between 6.35 mm
(0.25 inch) and 606 mm (23.375 inches)
1. The pressure/temperature limits in this document and any applicable standard or code limitation should not be exceeded. Note: Temperature limits vary based on hazardous area approval.
2. Normal m
3. Low pressure relay: 0 to 3.3 bar (0 to 49 psig).
4. High pressure relay: 3.4 to 7.0 bar (50 to 102 psig).
5. Typical values when calibrated at temperature.
6
3
/hour - Normal cubic meters per hour at 0_C and 1.01325 bar, absolute. Scfh - Standard cubic feet per hour at 60_F and 14.7 psia.
However, the product may bear the CE marking to
indicate compliance with other applicable European
Community Directives.
Section 2 Detailed Configuration and Calibration via HART
Communication
2‐2‐
Detailed Setup
The DVC2000 digital valve controller has the capability to communicate via the HART protocol. This section describes
the advanced features that can be accessed with the Field Communicator. Table 2‐1 lists the default settings for a
standard factory configuration. Table 2‐2 provides the actuator information required to setup and calibrate the
instrument.
Setting Modes
Field CommunicatorSetup & Diag > Detailed Setup > Mode (1-2-1)
Instrument Mode
You can change the instrument mode by selecting Instrument Mode from the Mode menu, or press the Hot Key and
select Instrument Mode.
Instrument Mode allows you to either take the instrument Out Of Service or place it In Service. Taking the instrument
Out Of Service allows you to perform instrument calibration and also allows you to change setup variables that affect
control, provided the calibration/configuration protection is properly set. See Setting Protection.
Note
Some changes that require the instrument to be taken Out Of Service will not take effect until the instrument is placed back In
Service or the instrument is restarted.
Control Mode
You can change the control mode by selecting Control Mode from the Mode menu, or press the Hot Key and select
Control Mode.
Control Mode lets you define where the instrument receives its set point. Follow the prompts on the Field
Communicator display to choose one of the following control modes: Analog or Digital.
Choose Analog if the instrument is to receive its set point over the 4-20 mA loop. Normally the instrument control
mode is Analog.
Choose Digital if the instrument is to receive its set point digitally, via the HART communications link.
A third mode, Test, is also displayed. Normally the instrument should not be in the Test mode. The Field
Communicator automatically switches to this mode whenever it needs to stroke the valve, for example during
9
Detailed Setup and Calibration
July 2020
Instruction Manual
D103176X012
calibration or stroke valve. However, if you abort from a procedure where the instrument is in the Test mode, it may
remain in this mode. To take the instrument out of the Test mode, select Control Mode then select either Analog or
Digital.
Restart Control Mode
Restart Control Mode (Restart Cont Mode) lets you choose which operating mode you want the instrument to be in
after a restart. Follow the prompts on the Field Communicator display to define the restart control mode as Resume
Last, Analog, or Digital.
Restarting the Instrument
Restart resets the instrument in the same manner as when power to the instrument is interrupted. When Restart is
issued, all of the newly entered configuration variables become active. Otherwise, they may not take effect until the
instrument is placed In Service.
Burst Mode
Enabling burst mode provides continuous communication from the digital valve controller. Burst mode applies only to
the transmission of burst mode data (analog input, travel target, pressure, and travel) and does not affect the way
other data is accessed.
Access to information in the instrument is normally obtained through the poll/response of HART communication. The
Field Communicator or the control system may request any of the information that is normally available, even while
the instrument is in burst mode. Between each burst mode transmission sent by the instrument, a short pause allows
the Field Communicator or control system to initiate a request. The instrument receives the request, processes the
response message, and then continues “bursting” the burst mode data.
There are four burst mode commands. Command 3 is recommended for use with the Rosemount
Tri-Loop
™
HART-to-analog signal converter. The other three are not used at this time.
™
333 HART
Command 3 provides the following variables:
D Primary variable—analog input in % or mA,
D Secondary variable—travel target (valve set point) in % of ranged travel,
D Tertiary variable—output pressure in psig, bar, or kPa,
D Quaternary variable—travel in % of ranged travel.
To enable burst mode select Mode > Burst > Burst Enable. To send a burst mode command, select Burst Command.
Burst mode must be enabled before you can change the burst mode command.
Drive Alert Enable
Flash ROM Fail
Ref Voltage Fail
Drive Current Fail
Critical NVM Fail
Temperature Sensor Fail
Pressure Sensor Fail
Travel Sensor Fail
1. The settings listed are for standard factory configuration. DVC2000 instruments can also be ordered with custom configuration
settings. For the default custom settings, refer to the order requisition.
2. If the instrument is shipped mounted on an actuator, these values depend upon the actuator on which the instrument is mounted.
Field CommunicatorSetup & Diag > Detailed Setup > Protection (1-2-2)
Some setup parameters may require changing the protection with the Field Communicator.
Two levels of protection are available:
D None—Neither setup nor calibration is protected. Allows changing calibration and setup parameters.
D Config & Calib—Both setup and calibration are protected. Prohibits changing calibration and protected setup
parameters.
12
Instruction Manual
D103176X012
Detailed Setup and Calibration
July 2020
Table 2‐3 lists configurable parameters in the instrument and the requirements for modifying these parameters, in
terms of instrument mode and protection.
Table 2‐3. Conditions for Modifying FIELDVUE DVC2000 Digital Valve Controller Parameters
Tvl Acum Alrt Enab
Tvl Acum Alrt Pt
Tvl Acum DB
Tvl Acum
n—indicates parameter may be modified for instrument mode and protection shown.
In Service/
Config Protected
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
-Continued-
In Service/
Config Unprotected
- - -
- - -
n
- - -
n
n
n
n
n
n
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
n
n
n
n
n
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Out of Service/
Config Protected
n
- - -
n
- - -
n
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
n
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- - -
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Out of Service/
Config Unprotected
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
13
Detailed Setup and Calibration
July 2020
Instruction Manual
D103176X012
Table 2‐3. Conditions for Modifying FIELDVUE DVC2000 Digital Valve Controller Parameters
Parameters
Drive Alert Enablennnn
Flash ROM Fail
Ref Voltage Fail
Drive Current Fail
Critical NVM Fail
Temp Sensor Fail
Press Sensor Fail
Tvl Sensor Fail
n—indicates parameter may be modified for instrument mode and protection shown.
In Service/
Config Protected
- - -
- - -
- - -
- - -
- - -
- - -
- - -
In Service/
Config Unprotected
- - -
- - -
- - -
- - -
- - -
- - -
- - -
Out of Service/
Config Protected
- - -
- - -
- - -
- - -
- - -
- - -
- - -
Out of Service/
Config Unprotected
n
n
n
n
n
n
n
To change an instrument's protection, press the Hot key on the Field Communicator display window and select
Protection or select Protection from the Detailed Setup menu. Select the desired level of protection. Follow the prompts
on the Field Communicator display to set the protection level.
General Information
Field CommunicatorSetup & Diag > Detailed Setup > General (1-2-3)
Follow the prompts on the Field Communicator to enter or view information in the following fields:
DHART Tag—Enter an up to 8 character HART tag for the instrument. The HART tag is the easiest way to distinguish
between instruments in a multi-instrument environment. Use the HART tag to label instruments electronically
according to the requirements of your application. The tag you assign is automatically displayed when the Field
Communicator establishes contact with the digital valve controller at power-up.
DMessage—Enter any message with up to 32 characters. Message provides the most specific user-defined means for
identifying individual instruments in multi-instrument environments.
DDescriptor—Enter a descriptor for the application with up to 16 characters. The descriptor provides a longer
user-defined electronic label to assist with more specific instrument identification than is available with the HART
tag.
DDate—Enter a date with the format MM/DD/YY. Date is a user-defined variable that provides a place to save the date
of the last revision of configuration or calibration information.
D Valve Serial Num—Enter the serial number for the valve in the application with up to 12 characters.
D Inst Serial Num—Enter the serial number on the instrument nameplate, up to 12 characters.
D Polling Address—If the digital valve controller is used in point-to-point operation, the Polling Address is 0. When
several devices are connected in the same loop, such as for split ranging, each device must be assigned a unique
polling address. The Polling Address is set to a value between 0 and 15. To change the polling address the
instrument must be Out Of Service.
For the Field Communicator to be able to communicate with a device whose polling address is not 0, it must be
configured to automatically search for all or specific connected devices.
DLUI Language—Select the language to be displayed on the local user interface; English, French, German, Italian,
Spanish, Chinese and Japanese.
14
Instruction Manual
D103176X012
Detailed Setup and Calibration
July 2020
Measured Variable Units and Ranges
Field CommunicatorSetup & Diag > Detailed Setup > Measured Var (1-2-4)
Follow the prompts on the Field Communicator to define the following measured variables units and ranges:
D Analog In Units—Permits defining the Analog Input Units in mA or percent of 4-20 mA range.
D Input Range Hi—Permits setting the Input Range High value. Input Range High should correspond to Travel Range
High, if the Zero Control Signal is configured as closed. If the Zero Control Signal is configured as open, Input Range
High corresponds to Travel Range Low. See figure 2‐1.
DInput Range Lo—Permits setting the Input Range Low value. Input Range Low should correspond to Travel Range
Low, if the Zero Control Signal is configured as closed. If the Zero Control Signal is configured as open, Input Range
Low corresponds to Travel Range High. See figure 2‐1.
D Pressure Units—Defines the output and supply pressure units in either psi, bar, or kPa.
D LUI Pressure Units—Enter the pressure units displayed on the local user interface; psi, bar, or kPa.
D Temp Units—Degrees Fahrenheit or Celsius. The temperature measured is from a sensor mounted on the digital
valve controller's printed wiring board.
Figure 2‐1. Calibrated Travel to Analog Input Relationship
Follow the prompts on the Field Communicator to edit or view information in the following fields:
DMax Supply Press—Enter the maximum supply pressure in psi, bar, or kPa, depending on what was selected for
pressure units.
Note
If the actual measured pressure exceeds this setting by 25%, the Output A pressure measurement will not be displayed.
DActuator Style—Enter the actuator style, spring and diaphragm, piston double-acting without spring, piston
single-acting with spring, or piston double-acting with spring.
D Valve Style—Enter the valve style, rotary or sliding-stem
D Zero Control Signal—Identifies whether the valve is fully open or fully closed when the input is 0%. If you are unsure
how to set this parameter, disconnect the current source to the instrument. The resulting valve travel is the Zero
Control Signal. (With direct-acting digital valve controllers, disconnecting the current source is the same as setting
the output pressure to zero.)
Setting Response
Field CommunicatorSetup & Diag > Detailed Setup > Response Control (1-2-6)
Follow the prompts on the Field Communicator to configure the following response control parameters:
WARNING
Changes to the tuning set may cause the valve/actuator assembly to stroke. To avoid personal injury and property damage
caused by moving parts, keep hands, tools, and other objects away from the valve/actuator assembly.
DTuning Set—There are eleven tuning sets to choose from. Each tuning set provides a preselected value for the digital
valve controller gain settings. Tuning set C provides the slowest response and M provides the fastest response.
Table 2‐4 lists the proportional gain, velocity gain, and minor loop feedback gain values for preselected tuning sets.
16
Instruction Manual
D103176X012
Detailed Setup and Calibration
July 2020
Table 2‐4. Gain Values for Preselected Turning Sets
Tuning SetProportional GainVelocity Gain
C5255
D6255
E7255
F8252
G9249
H10246
I11244
J12141
K14138
L16135
M18135
Minor Loop Feedback
Gain
DDamping Factor—If after selecting a tuning set the valve travel overshoot is excessive or unsatisfactory, the damping
factor allows you to either decrease damping to allow more overshoot, or increase damping to decrease the
overshoot.
DExpert Tuning Gains—With Expert Tuning, you can specify the proportional gain, velocity gain, and minor loop
feedback gain.
DInput Char—Defines the relationship between the travel target and ranged set point. Ranged set point is the input to
the characterization function. If the zero control signal equals closed, then a set point of 0% corresponds to a ranged
input of 0%. If the zero control signal equals open, a set point of 0% corresponds to a ranged input of 100%. Travel
target is the output from the characterization function.
You can select from the three fixed input characteristics shown in figure 2‐2 or you can select a custom
characteristic. Figure 2‐2 shows the relationship between the travel target and ranged set point for the fixed input
characteristics, assuming the Zero Control Signal is configured as closed.
You can specify 21 points on a custom characteristic curve. Each point defines a travel target, in % of ranged travel,
for a corresponding set point, in % of ranged set point. Set point values range from -6.25% to 106.25%. Before
modification, the custom characteristic is linear.
With input characterization you can modify the overall characteristic of the valve and instrument combination.
Selecting an equal percentage, quick opening, or custom (other than the default of linear) input characteristic
modifies the overall valve and instrument characteristic. However, if you select the linear input characteristic, the
overall valve and instrument characteristic is the characteristic of the valve, which is determined by the valve trim
(i.e., the plug or cage).
DCustom Char Table—To define a custom input characteristic, s
elect Custom Char Table. Select the point you wish to
define (1 to 21), then enter the desired set point value. Press Enter then enter the desired travel target for the
corresponding set point. When finished, select point 0 to return to the Response Control menu.
17
Detailed Setup and Calibration
July 2020
Instruction Manual
D103176X012
Figure 2‐2. Travel Target Versus Ranged Set Point, for Various Input Characteristics (Zero Control Signal = Closed)
125
100
Travel Target, %
0
-25
−25
Ranged Set Point, %
0125
100
Input Characteristic = Linear
125
100
125
100
Travel Target, %
0
-25
−25
Ranged Set Point, %
0125
100
Input Characteristic = Equal Percentage
Travel Target, %
0
A6535-1
-25
−25
Input Characteristic = Quick Opening
Ranged Set Point, %
0125
100
DSetpt Filter Time—Time constant for the set point filter, in seconds. The set point filter slows the response of the
digital valve controller and is typically used with noisy or fast processes. The filter provides improved closed loop
process control. To disable the filter, set the time constant to 0 seconds.
D Limits and Cutoff
Travel Limit Hi—Defines the high limit for the travel in percent (%) of ranged travel. It is the maximum allowable
travel (in percent of ranged travel) for the valve. During operation, the travel target will not exceed this limit. When
a Travel Limit High is set, the Travel Cutoff High is deactivated, since only one of these parameters can be active.
Travel Limit High is deactivated by setting it to 125.0%.
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Travel Limit Lo—Defines the low limit for the travel in percent (%) of ranged travel. It is the minimum allowable travel
(in percent of ranged travel) for the valve. During operation, the travel target will not exceed this limit. When a
Travel Limit Low is set, the Travel Cutoff Low is deactivated, since only one of these parameters can be active. Travel
Limit Low is deactivated by setting it to -25.0%.
Travel Cutoff Hi—Defines the high cutoff point for the travel in percent (%) of ranged travel. Above this cutoff, the
travel target is set to 123.0% of the ranged travel. When a Travel Cutoff High is set, the Travel Limit High is
deactivated, since only one of these parameters can be active. Travel Cutoff High is deactivated by setting it to
125.0%.
Travel Cutoff Lo—Defines the low cutoff point for the travel. Travel Cutoff Low can be used to ensure proper seat load
is applied to the valve. When below the travel cutoff low, the output is set to zero or to full supply pressure,
depending upon the zero control signal. A Travel Cutoff Low of 0.5% is recommended to help ensure maximum
shutoff seat loading.
When a Travel Cutoff Low is set, the Travel Limit Low is deactivated, since only one of these parameters can be
active. Travel Cutoff Low is deactivated by setting it to -25.0%.
D Min Open/Close
Min Opening Time—Minimum Opening Time is configured in seconds and defines the minimum time for the travel to
increase the entire ranged travel. This rate is applied to any travel increases. A value of 0.0 seconds deactivates this
feature and allows the valve to stroke open as fast as possible. This parameter should be set to 0 in firmware 1, 2, 3,
and 4.
Min Closing Time—Minimum Closing Time is configured in seconds and defines the minimum time for the travel to
decrease the entire ranged travel. This rate is applied to any travel decreases. A value of 0.0 seconds deactivates this
feature and allows the valve to stroke closed as fast as possible. This parameter should be set to 0 in firmware 1, 2,
3, and 4.
D Integral Settings
Enab Int Control—Select Yes or No
Integral Gain—By setting this value to 0.0 the positioner integrator is disabled. Any other value will provide reset
action to improve static performance.
Integral Dead Zone—When the travel target and actual target deviate by less than this amount, the integrator is
automatically disabled. This prevents the positioner integrator from fighting with the process controller integrator
which may result in valve oscillation.
Setting Alerts
Field CommunicatorSetup & Diag > Detailed Setup > Alerts (1-2-7)
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. Follow the prompts on the Field Communicator display to configure alerts.
Note
Alerts are not available with instrument level AC.
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Instruction Manual
D103176X012
Setting Travel Alerts
Setting High, High-High, Low and Low-Low Alerts
Follow the prompts on the Field Communicator to set the following travel alerts:
DTvl Hi/Lo Enab—Yes or No. Travel Hi/Lo Enable activates checking of the ranged travel against the Travel Alert High
and Low Points. Travel Alert Hi is set if the ranged travel rises above the alert high point. Once the alert is set, the
ranged travel must fall below the alert high point by the Travel Alert Deadband before the alert is cleared. See figure
2‐3.
Travel Alert Lo is set if the ranged travel falls below the alert low point. Once the alert is set, the ranged travel must
rise above the alert low point by the Travel Alert Deadband before the alert is cleared. See figure 2‐3.
DTvl HH/LL Enab—Yes or No. Travel HH/LL Enable activates checking of the ranged travel against the Travel Alert
High-High and Low-Low Points. Travel Alert Hi Hi is set if the ranged travel rises above the alert high-high point.
Once the alert is set, the ranged travel must fall below the alert high-high point by the Travel Alert Deadband before
the alert is cleared. See figure 2‐3.
Travel Alert Lo Lo is set if the ranged travel falls below the alert low-low point. Once the alert is set, the ranged travel
must rise above the alert low-low point by the Travel Alert Deadband before the alert is cleared. See figure 2‐3.
Figure 2‐3. Travel Alert Deadband
ALERT IS SET
TRAVEL ALERT
HIGH POINT
TRAVEL ALERT
DEADBAND
A6532
ALERT IS CLEARED
DTvl Alert Hi Pt—Travel Alert High Point is the value of the travel, in percent (%) of ranged travel, which, when
exceeded, sets the Travel Alert High alert.
DTvl Alert Lo Pt—Travel Alert Low Point is the value of the travel, in percent (%) of ranged travel, which, when
exceeded, sets the Travel Alert Low alert.
DTvl Alert Hi Hi Pt—Travel Alert High-High Point is the value of the travel, in percent (%) of ranged travel, which, when
exceeded, sets the Travel Alert Hi Hi alert.
DTvl Alert Lo Lo Pt—Travel Alert Low-Low Point is the value of the travel, in percent (%) of ranged travel, which, when
exceeded, sets the Travel Alert Lo Lo alert.
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DTvl Alrt DB—Travel Alert Deadband is the travel, in percent (%) of ranged travel, required to clear a travel alert, once it
has been set. The deadband applies to both Travel Alert Hi/Lo and Travel Alert Hi Hi/Lo Lo. See figure 2‐3.
Note
The Travel Alert Deadband applies to the Travel Deviation as well as Travel Alert Hi/Lo and Travel Alert Hi Hi/Lo Lo.
Setting Travel Deviation Alert
Follow the prompts on the Field Communicator to set the following travel deviation alerts:
DTvl Dev Alrt Enab—Yes or No. When enabled, checks the difference between the travel target and the actual travel. If
the difference exceeds the Travel Deviation Alert Point for more than the Travel Deviation Time, the Travel
Deviation Alert is set. It remains set until the difference between the travel target and the actual travel is less than
the Travel Deviation Alert Point minus the Travel Alert Deadband.
DTvl Dev Alrt Pt—Travel Deviation Alert Point is the alert point for the difference, expressed in percent (%), between
the travel target and the actual travel. When the difference exceeds the alert point for more than the Travel
Deviation Time, the Travel Deviation Alert is set.
DTvl Dev Time—Travel Deviation Time is the time, in seconds, that the travel deviation must exceed the Travel
Deviation Alert Point before the alert is set.
Setting Travel Accumulation Alert
Follow the prompts on the Field Communicator to set the following travel accumulation alerts:
DTvl Acum Alrt Enab—Yes or No. Travel Accumulator Alert Enable activates checking of the difference between the
Travel Accumulator value and the Travel Accumulator Alert Point. The Travel Accumulator Alert is set when the
Travel Accumulator value exceeds the Travel Accumulator Alert Point. It is cleared after you reset the Travel
Accumulator to a value less than the alert point.
DTvl Accum Alrt Pt—Travel Accumulator Alert Point is the value of the Travel Accumulator, in percent (%) of ranged
travel, which, when exceeded, sets the Travel Accumulator Alert.
DTvl Accum DB—Travel Accumulator Deadband is the area around the travel reference point, in percent (%) of ranged
travel, that was established at the last increment of the accumulator. This area must be exceeded before a change
in travel can be accumulated. See figure 2‐4.
DTvl Accum—Travel Accumulator records the total change in travel, in percent (%) of ranged travel, since the
accumulator was last cleared. The value of the Travel Accumulator increments when the magnitude of the change
exceeds the Travel Accumulator Dead- band. See figure 2‐4. You can reset the Travel Accumulator by configuring it
to zero.
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Detailed Setup and Calibration
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Figure 2‐4. Travel Accumulator Deadband (set at 10%)
DEADBAND EXCEEDED,
NEW REFERENCE POINT
ESTABLISHED
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D103176X012
DEADBAND REFERENCE POINT
DEADBAND (+/- 5%)
A6534
THIS AMOUNT OF CHANGE IS
ADDED TO THE TRAVEL
ACCUMULATOR.
Cycle Counter Alert
Follow the prompts on the Field Communicator to set the following cycle counter alerts:
DCycl Cnt Alrt Enab—Yes or No. Cycle Counter Alert Enable activates checking of the difference between the Cycle
Counter and the Cycle Counter Alert point. The Cycle Counter Alert is set when the value exceeds the Cycle Counter
Alert point. It is cleared after you reset the Cycle Counter to a value less than the alert point.
DCycl Cnt Alrt Pt—Cycle Counter Alert Point is the value of the Cycle Counter, in cycles, which, when exceeded, sets the
Cycle Counter Alert.
DCycle Count DB—Cycle Counter Deadband is the area around the travel reference point, in percent (%) of ranged
travel, that was established at the last increment of the Cycle Counter. This area must be exceeded before a change
in travel direction can be counted as a cycle. See figure 2‐5.
Figure 2‐5. Cycle Counter Deadband (set at 10%)
DEADBAND EXCEEDED, AND DIRECTION
CHANGED, NEW REFERENCE POINT
ESTABLISHED
22
A6533-1
POINT AT WHICH
CYCLE IS COUNTED.
DEADBAND REFERENCE POINT
DEADBAND (+/- 5%)
Instruction Manual
D103176X012
DCycle Count—Cycle Counter records the number of times the travel changes direction. The change in direction must
occur after the deadband has been exceeded before it can be counted as a cycle. See figure 2‐5. You can reset the
Cycle Counter by configuring it as zero.
Detailed Setup and Calibration
July 2020
Other Alerts
Follow the prompts on the Field Communicator to configure Drive Alert Enable:
DDrive Alert Enab—Yes or No. Drive Alert Enable activates checking of the relationship between the Drive Signal and
the calibrated travel. If one of the following conditions exists for more than 20 seconds, the Drive Alert is set.
For the case where Zero Control Signal is defined as closed:
Drive Signal < 10% and Calibrated Travel > 3%
Drive Signal > 90% and Calibrated Travel < 97%
For the case where Zero Control Signal is defined as open:
Drive Signal < 10% and Calibrated Travel < 97%
Drive Signal > 90% and Calibrated Travel > 3%
Alert Record
The alert record can store up to 20 alerts from any of the enabled alert groups: Valve Alerts, Failure Alerts, or
Miscellaneous Alerts. Starting from a cleared database, the first 20 alerts that become active will be stored in memory.
Follow the prompts on the Field Communicator to set or display the following:
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.
D Inst Date & Time—Permits setting the instrument clock. When alerts are stored in the alert record, the date and time
(obtained from the instrument clock) that they were stored is also stored in the record. The instrument clock uses a
24-hour format. Enter the date and time in the form: MM/DD/YYYY HH:MM:SS, where MM is two digits for the
month (1 through 12), DD is two digits for the day (1 through 31), and YYYY is four digits for the year (1980 through
2040), HH is two digits for the hour (00 to 23), MM is two digits for the minutes (00 to 59), and SS is two digits for
the seconds (00 through 59).
DRecord Group Enab—Permits enabling one or more alert groups. Table 3‐2 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.
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Self Test Failures for Instrument Shutdown
Field CommunicatorSetup & Diag > Detailed Setup > Self Test Shutdown (1-2-8)
Upon shutdown, the instrument attempts to drive its output pressure to the zero current condition and no longer
executes its control function. In addition, the appropriate failure statuses are set. Once the problem that caused the
shutdown has been fixed, the instrument can be restarted by cycling the power or selecting Restart from the Mode
menu of the Field Communicator. Also see the Viewing Instrument Status section on page 35 for further details about
failures.
Follow the prompts on the Field Communicator display to determine the self test shutdown criteria from the
following:
D Done—Select this if you are done modifying the self test shutdown criteria.
D Flash ROM Fail—When enabled, the instrument shuts down whenever there is a failure associated with flash ROM
(read only memory).
DTemp Comp Fail—When enabled, the instrument shuts down whenever this is a failure associated with Temperature
Compensation.
DRef Voltage Fail—When enabled, the instrument shuts down whenever there is a failure associated with the internal
voltage reference.
D Drive Current Fail—When enabled, the instrument shuts down whenever the drive current does not read as expected.
D NVM Fail—When enabled, the instrument shuts down whenever there is a failure associated with NVM (non-volatile
memory).
DTemp Sensor Fail—When enabled, the instrument shuts down whenever there is a failure associated with the internal
temperature sensor.
DPress Sensor Fail—When enabled, the instrument shuts down whenever there is a failure associated with the pressure
sensor.
DTravel Sensor Fail—When enabled, the instrument shuts down whenever there is a failure associated with the travel
sensor.
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Transmitter/Switches
Field CommunicatorSetup & Diag > Detailed Setup > Transmitter/Switches (1-2-9)
Note
These menu items are only available on units that have the optional position transmitter / limit switch hardware installed.
If optional limit switches are being used, power must be applied to the switch circuits throughout the calibration routine. Failure to
power the switches may result in incorrect switch orientation.
Follow the prompts on the Field Communicator display to configure the following:
DSwitch 1 Trip Point—Defines the threshold for the limit switch wired to terminals +41 and -42 in percent of calibrated
travel.
DSwitch 1 Closed—Configures the action of the limit switch wired to terminals +41 and -42. Selecting ABOVE
configures the switch to be closed when the travel is above the trip point. Selecting BELOW configures the switch to
be closed when the travel is below the trip point. Selecting DISABLED removes the icons and status from the display.
DSwitch 2 Trip Point—Defines the threshold for the limit switch wired to terminals +51 and -52 in percent of calibrated
travel.
DSwitch 2 Closed—Configures the action of the limit switch wired to terminals +51 and -52. Selecting ABOVE travel is
above the trip point. Selecting BELOW configures the switch to be closed when the travel is below the trip point.
Selecting DISABLED removes the icons and status from the display.
Note
Switch #2 is only operational if power is applied to switch #1 also. Switch #2 cannot be used alone.
DTransmitter Action—This configures the relationship between the valve travel and the position transmitter output
signal. If you select CLOSED, the transmitter will send 4 mA when the valve is closed. If you select OPEN, the
transmitter will send 4 mA when the valve is open.
A switch is located on the options board to select the transmitter fail signal (high+ or low-). High+ will result in a
current output of > 22.5 mA upon transmitter failure. Low- will result in a current output of < 3.6 mA. Refer to
figure 2‐6 for location and switch selection.
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Detailed Setup and Calibration
July 2020
Figure 2‐6. XMTR Switch
TRANSMITTER SWITCH
FOR FAIL SIGNAL
+ HIGH (SHOWN) OR
- LOW
Instruction Manual
D103176X012
Tuning
WARNING
Changes to the tuning set may cause the valve/actuator assembly to stroke. To avoid personal injury and property damage
caused by moving parts, keep hands, tools, and other objects away from the valve/actuator assembly.
Automatic
Field CommunicatorCalibrate > Calibrate > Auto Tuner (1-4-5)
The auto tuner is used to optimize digital valve controller tuning. It can be used on most sliding-stem and rotary
designs, including Fisher and other manufacturers' products. Moreover, because the auto tuner can detect internal
instabilities before they become apparent in the travel response, it can generally optimize tuning more effectively than
manual tuning.
Manual
If the auto tuner does not provide the desired responsiveness, you can manually tune the DVC2000. Refer to Setting
Response, page 16.
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Calibration
Field CommunicatorCalibrate > Calibrate (1-4)
WARNING
During calibration the valve will move full stroke. To avoid personal injury and property damage caused by the release of
pressure or process fluid, isolate the valve from the process and equalize pressure on both sides of the valve or bleed off the
process fluid.
Note
If optional limit switches are being used, power must be applied to the switch circuits throughout the calibration routine. Failure to
power the switches may result in incorrect switch orientation.
Analog Input Calibration
The DVC2000 digital valve controller is shipped from the factory with the analog input already calibrated. You do not
normally need to perform this procedure. However, if you suspect that this needs adjustment, follow one of the
procedures below.
Using the Field Communicator to perform Analog Input Calibration
To calibrate the analog input sensor, connect a variable current source to the instrument LOOP+ and LOOP- terminals.
The current source should be capable of generating an output of 4 to 20 mA. Select Analog In Calib from the Calibrate
menu, then follow the prompts on the Field Communicator display to calibrate the analog input sensor.
1. Set the current source to the target value shown on the display. The target value is the Input Range Low value. Press
OK.
2. The following message appears:
Use Increase and
Decrease selections
until the displayed
current matches the
target.
Press OK when you have read this message.
3. The value of the Analog Input appears on the display. Press OK to display the adjustment menu.
4. From the adjustment menu, select the direction and size of adjustment to the displayed value. Selecting large,
medium, and small adjustments causes changes of approximately 0.4 mA, 0.04 mA, and 0.004 mA, respectively. If
the displayed value does not match the current source, press OK, then repeat this step (step 4) to further adjust the
displayed value. When the displayed value matches the current source, select Done and go to step 5.
5. Set the current source to the target value shown on the display. The target value is the Input Range High value.
Press OK.
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Detailed Setup and Calibration
July 2020
6. The following message appears:
Use Increase and
Decrease selections
until the displayed
current matches the
target.
Press OK when you have read this message.
7. The value of the Analog Input appears on the display. Press OK to display the adjustment menu.
8. From the adjustment menu, select the direction and size of adjustment to the displayed value. Selecting large,
medium, and small adjustments causes changes of approximately 0.4 mA, 0.04 mA, and 0.004 mA, respectively. If
the displayed value does not match the current source, press OK, then repeat this step (step 8) to further adjust the
displayed value. When the displayed value matches the current source, select Done and go to step 9.
9. Place the instrument In Service and verify that the analog input displayed matches the current source.
Note
Analog Input Calibration can also be peformed using the Local Operator Interface, as decribed in the procedure below.
Instruction Manual
D103176X012
Using the Local Operator Interface to perform Analog Input Calibration
Refer to step 6 of the Local Interface Flow Chart on page 58 of this manual.
Connect a variable current source to the instrument +11 and -12 terminals. From the home screen, press the DOWN
(B) arrow key five times and then press the RIGHT (") arrow key. Acknowledge the warning if you are sure that you
want to proceed.
1. Adjust the variable current source to 4 mA.
2. Press the RIGHT (") arrow key
3. Adjust the variable current source to 20 mA.
4. Press the RIGHT (") arrow key.
If you want to keep this calibration, select SAVE AND EXIT. If you exit without saving, the last saved configuration data
will be restored.
Auto Calibrate Travel
1. The auto calibration procedure is automatic. It is completed when the Calibrate menu appears.
During calibration, the instrument seeks the high and low end points and the minor loop feedback (MLFB) and
output bias. By searching for the end points, the instrument establishes the limits of physical travel, i.e., the actual
travel 0 and 100% positions. This also determines how far the relay beam swings to calibrate the sensitivity of the
beam position sensor.
Adjusting the minor loop feedback bias is done around mid travel. The valve position is briefly moved back and forth
to determine the relay beam position at quiescence. Essentially, it establishes the zero point for the Minor Loop
Feedback circuit. The back and forth motion is performed to account for hysteresis.
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Adjusting the output bias aligns the travel set point with the actual travel by computing the drive signal required to
produce 0% error. This is done while the valve is at 50% travel, making very small adjustments.
2. Place the instrument In Service and verify that the travel properly tracks the current source.
Manual Calibrate Travel
Two procedures are available to manually calibrate travel:
D Analog Adjust
D Digital Adjust
Analog Calibration Adjust
Connect a variable current source to the instrument LOOP + and LOOP - terminals. The current source should be
capable of generating 4 to 20 mA. Follow the prompts on the Field Communicator display to calibrate the instrument's
travel in percent.
Note
0% Travel = Valve Closed
100% Travel = Valve Open
1. Adjust the input current until the valve is near mid-travel. Press OK.
Note
In steps 2 through 4, the accuracy of the current source adjustment affects the position accuracy.
2. Adjust the current source until the valve is at 0% travel, then press OK.
3. Adjust the current source until the valve is at 100% travel, then press OK.
4. Adjust the current source until the valve is at 50% travel, then press OK.
5. Place the instrument In Service and verify that the travel properly tracks the current source.
Digital Calibration Adjust
Connect a variable current source to the instrument LOOP + and LOOP - terminals. The current source should be set
between 4 and 20 mA. Follow the prompts on the Field Communicator display to calibrate the instrument's travel in
percent.
Note
0% Travel = Valve Closed
100% Travel = Valve Open
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Detailed Setup and Calibration
July 2020
1. From the adjustment menu, select the direction and size of change required to set the travel at 0%.
If another adjustment is required, repeat step 1. Otherwise, select Done and go to step 2.
2. From the adjustment menu, select the direction and size of change required to set the travel to 100%.
If another adjustment is required, repeat step 2. Otherwise, select Done and go to step 3.
3. From the adjustment menu, select the direction and size of change required to set the travel to 50%.
If another adjustment is required, repeat step 3. Otherwise, select Done and go to step 4.
4. Place the instrument In Service and verify that the travel properly tracks the current source.
Instruction Manual
Pressure Sensor Calibration
Note
The pressure sensor is calibrated at the factory and should not require calibration.
D103176X012
Output Pressure Sensor Calibration
To calibrate the output pressure sensor, connect an external reference gauge to the output being calibrated. The
gauge should be capable of measuring maximum instrument supply pressure. From the Calibrate menu, select PressureCalib. Follow the prompts on the Field Communicator display to calibrate the instrument's output pressure sensor.
1. Adjust the supply pressure regulator to the maximum instrument supply pressure. Press OK.
2. The instrument reduces the output pressure to 0. The following message appears.
Use the Increase and
Decrease selections
until the displayed
pressure matches the
output x pressure.
Press OK when you have read the message.
3. The value of the output pressure appears on the display. Press OK to display the adjustment menu.
4. From the adjustment menu, select the direction and size of adjustment to the displayed value. Selecting large,
medium, and small adjustments causes changes of approximately 3.0 psi/0.207 bar/20.7 kPa, 0.30 psi/0.0207
bar/2.07 kPa, and 0.03 psi/0.00207 bar/0.207 kPa, respectively. If the displayed value does not match the output
pressure, press OK, then repeat this step (step 4) to further adjust the displayed value. When the displayed value
matches the output pressure, select Done and go to step 5.
5. The instrument sets the output pressure to full supply. The following message appears.
30
Use the Increase and
Decrease selections
until the displayed
pressure matches the
output x pressure.
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Detailed Setup and Calibration
July 2020
Press OK when you have read the message.
6. The value of the output pressure appears on the display. Press OK to display the adjustment menu.
7. From the adjustment menu, select the direction and size of adjustment to the displayed value. Selecting large,
medium, and small adjustments causes changes of approximately 3.0 psi/0.207 bar/20.7 kPa, 0.30 psi/0.0207
bar/2.07 kPa, and 0.03 psi/0.00207 bar/0.207 kPa, respectively. If the displayed value does not match the output
pressure, press OK, then repeat this step (step 7) to further adjust the displayed value. When the displayed value
matches the output pressure, select Done and go to step 8.
8. Place the instrument In Service and verify that the displayed pressure matches the measured output pressure.
Position Transmitter Calibration
Note
The position transmitter is calibrated at the factory and should not require calibration.
Note
This procedure will not move the control valve. The instrument will simulate an output for calibration purposes only.
This procedure is only available on units that have the optional position transmitter / limit switch hardware installed.
The DVC2000 digital valve controller is shipped from the factory with the position transmitter already calibrated.
To calibrate the position transmitter, select Transmitter Calibration from the Calibrate menu. Connect a current meter
in series with the +31 and -32 terminals, and a voltage source (such as the DCS analog input channel). Follow the
prompts on the Field Communicator display to manipulate the output current read by the current meter to 4 mA, and
then to 20 mA.
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Viewing Device Variables and Diagnostics
July 2020
Section 3 Viewing Device Variables and Diagnostics3‐3‐
Viewing Variables
Note
These variables are not available for instrument level AC.
Analog Input, Travel, Valve Set Point, Drive Signal and Output Pressure
The following variables are displayed on the Online menu:
Analog In shows the value of the instrument analog input in mA (milliamperes) or % (percent) of ranged input.
Travel shows the value of the DVC2000 digital valve controller travel in % (percent) of ranged travel. Travel always
represents how far the valve is open.
Valve SP shows the requested valve position in % of ranged travel.
Drive Sgl shows the value of the instrument drive signal in % (percent) of maximum drive.
Pressure shows the value of the instrument output pressure in psi, bar, or kPa.
Additional Instrument Variables
Field CommunicatorSetup & Diag > Display > Variables (1-3-1)
Note
These variables are not available for instrument level AC.
The Variables menu is available to view additional variables, such as the status of the auxiliary input, the instrument
internal temperature, cycle count, travel accumulation and device free time. If a value for a variable does not appear
on the display, select the variable and a detailed display of that variable with its value will appear. A variable's value
does not appear on the menu if the value becomes too large to fit in the allocated space on the display, or if the
variable requires special processing.
D Temp—The internal temperature of the instrument is displayed in either degrees Fahrenheit or Celsius.
D Cycl Count—Cycle Counter displays the number of times the valve travel has cycled. Only changes in direction of the
travel after the travel has exceeded the deadband are counted as a cycle. Once a new cycle has occurred, a new
deadband around the last travel is set. The value of the Cycle Counter can be reset from the Cycle Count Alert menu.
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DTvl Accum—Travel Accumulator contains the total change in travel, in percent of ranged travel. The accumulator
only increments when travel exceeds the deadband. Then the greatest amount of change in one direction from the
original reference point (after the deadband has been exceeded) will be added to the Travel Accumulator. The value
of the Travel Accumulator can be reset from the Travel Accum Alert menu.
Viewing Device Information
Field CommunicatorSetup & Diag > Display > Device Information (1-3-2)
The Device Information menu is available to view information about the instrument.
Follow the prompts on the Field Communicator display to view information in the following fields:
DHART Univ Rev—HART Universal Revision is the revision number of the HART Universal Commands which are used as
the communications protocol for the instrument.
DDevice Rev—Device Revision is the revision number of the software for communication between the Field
Communicator and the instrument.
D Firmware Rev—Firmware Revision is the revision number of the Fisher firmware in the instrument.
D Firmware Date—Firmware Date is the revision date of the firmware being used.
D Main Elec Rev—Main Electronics Revision is the revision number of the main electronics component.
D Sec Elec Rev—Secondary Electronics Revision is the revision number of the secondary electronics component.
D Sensor Serial Num—Sensor Serial Number is the serial number of the sensor
Table 3‐1 lists the functions available for each instrument level.
Table 3‐1. Functions Available for Instrument Level
Instrument LevelFunctions Available
ACCommunicates via the LCD or with Field Communicator. Provides basic setup and calibration.
Communicates via the LCD, the Field Communicator and ValveLink Software. Provides basic setup, calibration, travel
HC
AD
PDIncludes all functions listed above plus online valve signature test (friction analysis)
cutoffs and limits, minimum opening and closing times, input characterization (linear, equal percentage, quick opening,
and custom) and the following alerts: travel deviation; travel alert high, low, high high, and low low; drive signal; auxiliary
terminal; cycle counter; and travel accumulation.
Includes all functions listed above plus (with ValveLink software) all offline diagnostic tests (dynamic error band, drive
signal, step response, and valve signature) plus online trending
DDevice ID—Each instrument has a unique Device Identifier. The device ID provides additional security to prevent this
instrument from accepting commands meant for other instruments.
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Viewing Device Variables and Diagnostics
Viewing Instrument Status
Field CommunicatorInstrument Status (7)
Note
Instrument Status is not available for instrument level AC.
The following describes the various displays for the Instrument Status menu.
DDone—Select this when you are done viewing the instrument status.
Note
Alerts are not available with instrument level AC.
July 2020
DValve Alerts—If a valve alert is active, it will appear when the Valve Alerts menu item is selected. If more than one
alert is active, they will appear on the display one at a time in the order listed below.
1. Alert Record has Entries
2. Alert Record is full
3. Instrument Time is Invalid
4. Tvl Accumulation Alert
5. Cycle Counter Alert
6. Non-critical NVM Alert
7. Power Starvation Alert
8. Drive Signal Alert
9. Tvl Lim/Cutoff Low
10. Tvl Lim/Cutoff High
11. Tvl Deviation Alrt
12. Tvl Alert Hi Hi
13. Tvl Alert Hi
14. Tvl Alert Lo Lo
15. Tvl Alert Lo
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Instruction Manual
D103176X012
DFailure Alerts—If a self-test failure has occurred, it will appear when the Failure Alerts menu item is selected. If there
are multiple failures, they will appear on the display one at a time in the order listed below.
1. Offline/Failed—This failure indicates a failure, enabled from the Self Test Shutdown menu, caused an instrument
shutdown. Press Enter to see which of the specific failures caused the Offline/Failed indication.
2. Travel Sensor Fail—This failure indicates the sensed travel is outside the range of -25.0 to 125.0% of calibrated
travel. If this failure is indicated, check the instrument mounting.
3. Pressure Sensor Fail—This failure indicates the actuator pressure is outside the range of -24.0 to 125.0% of the
calibrated pressure for more than 60 seconds. If this failure is indicated, check the instrument supply pressure. If
the failure persists, ensure the printed wiring board assembly is properly mounted onto the mounting frame, and
the pressure sensor O-rings are properly installed. If the failure does not clear after restarting the instrument,
replace the printed wiring board assembly.
4. Temperature Sensor Fail—This failure 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 failure is indicated, restart the instrument and see if it clears. If it
does not clear, replace the printed wiring board assembly.
5. NVM Fail—This failure is indicated when the Non-Volatile Memory integrity test fails. Configuration data is stored
in NVM. If this failure is indicated, restart the instrument and see if it clears. If it does not clear, replace the
printed wiring board Assembly.
6. Drive Current Fail—This failure is indicated when the drive current does not read as expected. If this failure occurs,
check the connection between the I/P converter and the printed wiring board assembly. Try removing the I/P
converter and re-installing it. If the failure does not clear, replace the I/P converter or the printed wiring board
assembly.
7. Ref Voltage Fail—This failure is indicated whenever there is a failure associated with the internal voltage reference.
If this failure is indicated, restart the instrument and see if it clears. If it does not clear, replace the printed wiring
board assembly.
8. Flash ROM Fail—This failure indicates the Read Only Memory integrity test failed. If this failure is indicated, restart
the instrument and see if it clears. If it does not clear, replace the printed wiring board assembly.
D Alert Record—The instrument contains an alert record that can store up to 20 alerts from any of the enabled alert
groups: Valve Alerts or Failure Alerts. See the Advanced Setup section for information on enabling alert groups.
Table 3‐2 lists the alerts included in each of the groups. The alert record also includes the date and time (from the
instrument clock) the alerts occurred.
Table 3‐2. Alerts Included in Alert Groups for Alert Record
Alert GroupAlerts Included in Group
Travel Alert Lo
Travel Alert Hi
Valve Alerts
Failure Alerts
Travel Alert Lo Lo
Travel Alert Hi Hi
Travel deviation
Drive signal
Flash ROM Shutdown
Drive Current Shutdown
Reference Voltage Shutdown
Critical NVM Shutdown
Temperature Sensor Shutdown
Pressure Sensor Shutdown
Travel Sensor Shutdown
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D103176X012
Viewing Device Variables and Diagnostics
July 2020
DOperational Status—This menu item indicates the status of the Operational items listed below. The status of more
than one operational may be indicated. If more than one Operational status is set, they will appear on the display
one at a time in the order listed below.
1. Out of Service
2. Auto Calibration in Progress
3. Input Char Selected
4. Custom Char Selected
5. Diagnostic in Progress
6. Calibration in Progress
7. Set Point Filter Active
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D103176X012
38
Instruction Manual
D103176X012
Maintenance and Troubleshooting
July 2020
Section 4 Maintenance and Troubleshooting4‐4‐
The DVC2000 digital valve controller has the capability to provide predictive maintenance information through the
use of ValveLink software. This software allows you to pinpoint instrument and valve problems without disrupting the
process. For information on using ValveLink software, see the ValveLink software quick start guide (D102813X012
WARNING
Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before performing
any maintenance procedures on the the DVC2000 digital valve controller:
D Always wear protective clothing, gloves, and eyewear when performing any maintenance procedures to avoid personal
injury or property damage.
D Do not remove the actuator from the valve while the valve is still pressurized.
D Disconnect any operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the
actuator cannot suddenly open or close the control valve.
D Use bypass valves or completely shut off the process to isolate the control valve from process pressure. Relieve process
pressure from both sides of the control valve.
D Use lock-out procedures to be sure that the above measures stay in effect while you work on the equipment.
D Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
D Vent the pneumatic actuator loading pressure and relieve any actuator spring precompression so the actuator is not
applying force to the valve stem; this will allow for the safe removal of the stem connector.
).
CAUTION
When replacing components, use only components specified by the factory. Always use proper component replacement
techniques, as presented in this manual. Improper techniques or component selection may invalidate the approvals and
the product specifications, as indicated in table 1‐1 and may also impair operations and the intended function of the device.
Stroking the Digital Valve Controller Output
Field CommunicatorSetup & Diag > Stroke Valve (1-5)
Note
Stroke Valve is not available with instrument level AC.
Follow the prompts on the Field Communicator display to select from the following: Done, Ramp Open, Ramp Closed,Ramp to Target, and Step to Target, and Stop.
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Maintenance and Troubleshooting
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Instruction Manual
D103176X012
D Done—Select this if you are done. All ramping is stopped when DONE is selected.
D Ramp Open—ramps the travel toward open at the rate of 1.0% per second of the ranged travel.
D Ramp Closed—ramps the travel toward closed at the rate of 1.0% per second of the ranged travel.
D Ramp to Target—ramps the travel to the specified target at the rate of 1.0% per second of the ranged travel.
D Step to Target—steps the travel to the specified target.
D Stop—stops the command.
Replacing the Instrument
To replace an instrument that has been previously mounted to a control valve, perform the following basic steps:
Instrument Removal
1. Make sure that the valve is isolated from the process.
2. Remove the instrument cover (refer to figure 4‐1).
Figure 4‐1. FIELDVUE DVC2000 Exploded View
TERMINAL BOARD SCREWS (3)
MAIN ELECTRONIC SCREWS (3)
W8840
EMI SHIELD SCREWS (3)
COVER SCREWS (2)
3. Disconnect the field wiring from the terminal board.
4. Shut off the instrument air supply and disconnect the tubing to the supply port.
5. Disconnect the tubing from the output port.
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Instruction Manual
D103176X012
6. Remove the bolts connecting the DVC2000 housing to the mounting bracket.
Note
The magnet assembly may remain on the valve stem (or shaft).
When replacing the instrument, be sure to follow the mounting procedure outlined in the quick start guide
(D103203X012
Setup routine outlined in the quick start guide. If changes need to be made to the default settings, use Detailed Setup
to make the appropriate modifications.
) that shipped with the digital valve controller. Once the instrument is mounted, perform the Quick
Maintenance and Troubleshooting
July 2020
Replacing the Magnetic Feedback Assembly
To remove the magnet assembly from the actuator stem, perform the following basic steps.
1. Make sure that the valve is isolated from the process.
2. Remove the instrument cover.
3. Disconnect the field wiring from the terminal board.
4. Shut off the instrument air supply.
5. Remove the DVC2000 from the actuator.
6. Remove the screws holding the magnet assembly to the connector arm.
When replacing the instrument, be sure to follow the mounting procedure outlined in the quick start guide that
shipped with the digital valve controller. Once the instrument is mounted, perform the Quick Setup routine outlined in
the quick start guide. If changes need to be made to the default settings, use Detailed Setup to make the appropriate
modifications.
Component Replacement
When replacing any of the components of the DVC2000, the maintenance should be performed in an instrument shop
whenever possible. Make sure that the electrical wiring and pneumatic tubing is disconnected prior to disassembling
the instrument.
CAUTION
When replacing components, proper means of electrostatic discharge protection is required. Failure to use a grounding
strap, or other means of electrostatic discharge protection can result in damage to the electronics.
Replacing the I/P Converter
The I/P converter is fastened to the mounting frame. On the I/P mounting surface is a replaceable screen with O-ring
seal.
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Maintenance and Troubleshooting
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Instruction Manual
D103176X012
Note
After I/P converter replacement, calibrate the digital valve controller to maintain accuracy specifications.
Removal
1. Remove the main cover.
2. Remove three screws that hold the EMI shield and remove the shield (refer to figure 4‐1).
3. Remove the three screws holding the electronics board to the mounting frame.
4. Pull the main electronics straight off of the mounting frame. The board is electrically connected to an
interconnecting board with a rigid connector.
5. Remove the two screws holding the mounting frame to the instrument housing (refer to figure 4‐2 for location of
screws).
Figure 4‐2. Mounting Frame Assembly
W9103
INTERCONNECT
BOARD SCREW (1)
I/P CONVERTER SCREW HOLES (4)
(SCREWS NOT SHOWN)
INTERCONNECT
BOARD
MANIFOLD
ASSEMBLY
PNEUMATIC
RELAY SCREWS (2)
I/P BOARD SCREW (1)
MOUNTING FRAME SCREW HOLES (2)
(SCREWS NOT SHOWN)
6. Pull the manifold assembly straight out. The interconnecting board is electrically connected to the termination
board with a rigid connector.
7. Remove the interconnect board from the mounting frame.
8. Remove the four screws holding the I/P converter to the mounting frame (refer to figure 4‐2 for location of screws).
9. Pull the I/P converter straight out taking care to capture the two o-rings (one has a screen).
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Instruction Manual
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Maintenance and Troubleshooting
July 2020
Assembly
When installing a new I/P converter, follow the reverse procedure as outlined above and recalibrate the instrument.
1. Install the I/P converter, making sure the screen O-ring is installed on the I/P supply port (the circular port on the
mounting frame), and that the two manifold O-rings are in place.
2. Install the interconnect board on the mounting frame. Do not tighten the self-tapping screw on on the interconnect
board at this time (see figure 4‐2).
3. Replace the manifold assembly.
4. Install the mounting frame to the housing, making sure that the O-rings (keys 45 and 51) are in place.
5. Install the main electronics to the mounting frame, making sure that the pressure sensor seal (key 16) is in place.
6. Tighten the self-tapping screw on the Interconnect Board.
7. Install the primary shield (key 37) with three screws.
8. Recalibrate the instrument and install the cover.
Replacing the Pneumatic Relay
The pneumatic relay is fastened to the mounting frame. There are two versions, 0 to 3.4 bar (0 to 49 psig), indicated by
a white label, and 3.5 to 7 bar (50 to 100 psig), indicated by a green label.
Note
After pneumatic relay replacement, calibrate the digital valve controller to maintain accuracy specifications.
Removal
1. Remove the main cover.
2. Remove three screws that hold the EMI shield and remove the shield (refer to figure 4‐1).
3. Remove the three screws holding the electronics board to the mounting frame.
4. Pull the main electronics straight off of the mounting frame. The board is electrically connected to an
interconnecting board with a rigid connector.
5. Remove the two screws holding the mounting frame to the instrument housing (refer to figure 4‐2).
6. Pull the mounting frame straight out. The interconnecting board is electrically connected to the termination board
with a rigid connector.
7. Remove the two screws holding the pneumatic relay to the mounting frame.
8. Pull the pneumatic relay straight out.
Assembly
When installing a new pneumatic relay, follow the reverse procedure as outlined above and recalibrate the instrument.
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Instruction Manual
D103176X012
Troubleshooting
What is a healthy unit?
In order to troubleshoot the DVC2000 digital valve controller, it is critical to understand how a healthy unit is supposed
to behave. Below is a list of behaviors you should see if the instrument is performing well.
D LCD correctly displaying characters
D Pushbuttons allow navigation
D Valve travels full stroke
D No diagnostics messages
D No alerts or alarms
D Hall sensor within the valid range of travel on the magnet assembly
D Slight audible air venting
D Minimal overshoot
D Quick response
D Functionality matches the tier level
What are the observable symptoms?
The next thing to do is to identify the symptoms of the unhealthy unit. Are there any obvious discrepancies that can be
identified? Work through the following items to help gather information about the faulty behavior and identify the
core problem(s). Also see the DVC2000 Troubleshooting Checklist on page 47.
1. Check the relay pressure range.
There are two available relays for the DVC2000:
D Low pressure: 0-3.4 bar (0-49 psi) — white label
D High pressure: 3.5-7 bar (50-100 psi) — green label
The supply pressure feeding the instrument must fall within the rated pressure range of the installed relay for proper
operation.
2. Check the instrument protection (LCD via pushbuttons and Configure/Calibrate via HART)
3. Check for local device diagnostic messages
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Instruction Manual
D103176X012
4. Check the alerts via HART
5. Check the feedback setup
Is the pole piece on the DVC2000 housing within the valid travel range of the feedback array?
6. Observe the stem movement and pressure delivery
Maintenance and Troubleshooting
Determine the logical causes.
With the discrepancies identified, logic can now be applied to isolate the component that is in need of repair or
replacement. There are seven main categories of problems:
1. Wiring and Terminations
2. Air Supply
3. Electronics
4. Firmware
5. Pneumatics
6. Travel feedback
7. Mounting
July 2020
Repair or replace the faulty components.
By isolating the problem to one of these categories, component replacement or repair becomes simple and
straightforward. Refer to component replacement instructions earlier in this section.
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D103176X012
Checking Voltage Available
WARNING
Personal injury or property damage caused by fire or explosion may occur it this test is attempted in any area which
contains a potentially explosive atmosphere or has been classified as hazardous.
To check the Voltage Available at the instrument, perform the following:
1. Disconnect the field wiring from the control system and connect equipment as shown in figure 4‐3 to the control
system terminals.”
2. Set the control system to provide maximum output current.
3. Set the resistance of the 1 kilOhm potentiometer shown in figure 4‐3 to zero.
4. Record the current shown on the milliammeter.
5. Adjust the resistance of the 1 kilOhm potentiometer until the voltage read on the voltmeter is 9.0 Volts.
6. Record the current shown on the milliammeter.
7. If the current recorded in step 6 is the same as that recorded in step 4 (± 0.08 mA), the voltage available is
adequate.
Figure 4‐3. Voltage Test Schematic
CIRCUIT
UNDER
TEST
A6192-1
1 KILOHM POTENTIOMETER
MILLIAMMETER
VOLTMETER
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Instruction Manual
D103176X012
Maintenance and Troubleshooting
July 2020
Technical Support Checklist
Have the following information available prior to contacting your Emerson sales office for support.
1. Instrument serial number as read from nameplate ________________________________________________
2. Is the digital valve controller responding to the control signal? Yes _________ No _________
If not, describe:
3. Measure the voltage across the “+11” and “-12” terminal box screws when the commanded current is 4.0 mA and
20.0 mA: V @ 4.0 mA V @ 20.0 mA.
(These values should be around 8.0 V @ 4.0 mA and 8.25 V @ 20 mA.)
4. Is the front panel LCD functional? Yes _________ No _________
5. Is it possible to communicate with the DVC2000 via the LUI pushbuttons? Yes _________ No _________
6. Are Travel, Input Signal, and Output Pressure in the LCD shown correctly? Yes _________ No _________
7. Is it possible to communicate via HART to the DVC2000? Yes _________ No _________
8. What is the Diagnostic Tier of the digital valve controller? AC ____ HC____ AD____ PD____
9. What is the firmware version of the DVC2000? _________________
10. What is the hardware version of the DVC2000? _________________
11. Is the digital valve controller's Instrument Mode “In Service”? Yes _________ No _________
12. Is the digital valve controller's Control Mode set to “Analog”? Yes _________ No _________
13. What are the following parameter readings?
Input Signal _________ Drive Signal _________% Pressure _________
2. What Make, Brand, Style, Size, etc. actuator is the DVC2000 mounted on? ________________________
3. What is the Mounting Kit part number? _________________________________________________________
4. If mounting kits are made by LBP/Customer, please provide pictures of installation.
5. If sliding stem:
What is the full travel of the valve? _____________
Which Magnet Assembly? 25 mm (1 inch)_____ 50 mm (2 inch) _____ 110 mm (4-1/8 inch) _____
Does the Magnet Assembly move through marked areas? Yes _________ No _________
6. If Rotary: Is the actuator rotation 90_? Yes _________ No _________
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Instruction Manual
D103176X012
Parts
July 2020
Section 5 Parts5‐5‐
Parts Ordering
Whenever corresponding with your Emerson sales office about this equipment, always mention the controller serial
number. When ordering parts kits, refer to the 11-character part number of each required kit as found in the following
list.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson should not, under any
circumstances, be used in any Fisher instrument. Use of components not supplied by Emerson may void your warranty,
might adversely affect the performance of the valve, and could cause personal injury and property damage.
The DVC2000 digital valve controller is designed with all metric fasteners and threaded connections. However,
optional inch connections are available for the two conduit entrance points (1/2 NPT) and the supply/output
pneumatic ports (1/4 NPT). Even with this option, all other fasteners and threaded connections are metric.
Parts Kits
Description Part Number
I/P Converter Kit
For GX Actuator38B6041X182
For non-GX Rotary and Sliding-Stem38B6041X122
Low Pressure Relay Kit (white label)
Housing A (for GX Actuator) (0 - 49 psig)GE59274X012
Housing B (for nonGX Rotary and Sliding-Stem)
(0 - 3.3 bar/0 - 49 psig)GE08910X012
High Pressure Relay Kit (green label)
Housing A (for GX Actuator) (50 - 100 psig)GE59275X012
Housing B (for nonGX Rotary and Sliding-Stem)
(3.4 - 7.0 bar/50 - 100 psig)GE08911X012
Mounting Frame KitGE08912X012
Main Cover Assembly (see figure 5‐1, key 13)GE12427X012
EMI Shield KitGE08913X012
Integral Mount Seal Kit (for 667 size 30i-76i and GX actuators)
[kit contains 5 seals]19B5402X032
Description Part Number
Feedback Array Kit
Sliding Stem (Linear)
[kit contains magnet assembly and hex socket cap screws, qty.
2, washer, plain, qty. 2, external tooth lock washer, qty. 2 (only
with aluminum feedback array kit) and alignment template.
•210 mm (8-1/4 inch) kit contains magnet assembly and hex
socket cap screws, qty. 4, washer, plain, qty. 4, external tooth
lock washer, qty. 4 (only with aluminum feedback array kit),
alignment template and insert]. Stainless steel kits only for use
with stainless steel mounting kits.
7 mm (1/4-inch)
AluminumGG20240X012
19 mm (3/4-inch)
AluminumGG20240X022
Stainless steelGE65853X012
25 mm (1-inch)
AluminumGG20240X032
Stainless steelGE65853X022
38 mm (1-1/2 inch)
AluminumGG20240X042
Stainless steelGE65853X032
50 mm (2-inch)
AluminumGG20240X052
Stainless steelGE65853X042
110 mm (4-1/8 inch)
AluminumGG20240X082
Stainless steelGE65853X062
210 mm (8-1/4 inch)
AluminumGG20243X012
Stainless steelGE65853X072
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Parts
July 2020
Instruction Manual
D103176X012
Description Part Number
Feedback Array Kit (cont'd)
Rotary
[Kit contains magnet assembly, pointer assembly, travel
indicator scale and M3 machine pan head screws qty. 2].
Stainless steel kits only for use with stainless steel mounting kits.
AluminumGG10562X012
Stainless steelGG10562X022
Rotary Array Kit with Coupler
[Kit contains magnet assembly and NAMUR coupler]
AluminumGE71982X012
Stainless steelGE71982X022
Elastomer Kit - includes all accessible elastomers
for one complete DVC2000 unitGE08917X012
Small Hardware Kit -includes all fasteners and plugs
(except mounting hardware) for one
complete DVC2000 unitGE08918X012
High Temperature Gasket Set
Includes O-ring seal (qty 1) and insulation
gaskets (qty 2)GE26550X012
Replacement housing
Plastic Vent Construction
Housing A (for GX Actuator)
G 1/4 & M20 Metric threaded portsGE24013X012
1/4 NPT & 1/2 NPT Imperial threaded portsGE24011X012
Housing B (for nonGX Rotary and Sliding-Stem)
G 1/4 & M20 Metric threaded portsGE24012X012
1/4 NPT & 1/2 NPT Imperial threaded portsGE24010X012
Metal Vent Construction
Housing A (for GX Actuator)
G 1/4 & M20 Metric threaded portsGE74138X012
1/4 NPT & 1/2 NPT Imperial threaded portsGE74137X012
Housing B (for nonGX Rotary and Sliding-Stem)
G 1/4 & M20 Metric threaded portsGE74140X012
1/4 NPT & 1/2 NPT Imperial threaded portsGE74139X012
Metal Vent AssemblyGE20435X012
Parts List (refer to figures 5‐1,
5‐2 and 5‐3)
Note
The parts contained in the Parts List are not available as individual
components. All parts are included in the Parts Kits.
2. All parts included in the Low Pressure or High Pressure Relay Kits
3. All parts included in the Mounting Frame Kit
4. All parts included in the EMI Shield Kit
Instruction Manual
D103176X012
Figure 5‐1. FIELDVUE DVC2000 Digital Valve Controller Assembly, Housing A
Parts
July 2020
APPLY LUBRICANT/SEALANT
NOTE:
1. APPLY LUBRICANT KEY 65 TO ALL O-RINGS UNLESS OTHERWISE SPECIFIED
GE13174-F, SHEET 1 OF 3
VIEW A
PIPE AWAY VENT
51
Parts
July 2020
Figure 5‐2. FIELDVUE DVC2000 Digital Valve Controller Assembly, Housing A
Instruction Manual
D103176X012
APPLY LUBRICANT/SEALANT
NOTE:
1. APPLY LUBRICANT KEY 65 TO ALL O-RINGS UNLESS OTHERWISE SPECIFIED
GE13174-F, SHEET 2 OF 3
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Instruction Manual
D103176X012
Figure 5‐3. FIELDVUE DVC2000 Digital Valve Controller Assembly, Housing A
Parts
July 2020
SEE
VIEW B
TRANSMITTER AND LIMIT SWITCHES
POSITIONER WITH
APPLY LUBRICANT/SEALANT
NOTE:
1. APPLY LUBRICANT KEY 65 TO ALL O-RINGS UNLESS OTHERWISE SPECIFIED
GE13174-F, SHEET 3 OF 3
POSITIONER ONLY
SEE
VIEW B
VIEW B
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Parts
July 2020
Instruction Manual
D103176X012
54
Instruction Manual
D103176X012
Principle of Operation
July 2020
Appendix A Principle of OperationA‐1‐
DVC2000 Operation
The DVC2000 digital valve controller uses a traditional 4-20 mA input signal and converts it into a pneumatic output
pressure that is delivered to the control valve actuator. Accurate control of the position of the valve is enabled by valve
stem position feedback. The way in which the DVC2000 accomplishes this is through a two-stage positioner design.
Refer to figure A‐1 for a block diagram of the positioner operation.
Figure A‐1. FIELDVUE DVC2000 Digital Valve Controller Block Diagram
NON-CONTACT
POSITION FEEDBACK
OUTPUT
AIR SUPPLY
INPUT SIGNAL
(4-20 MA, 9 VOLTS)
TERMINATIONS
&
POSITION
SENSOR
BOARD
MAIN BOARD
ASSEMBLY
TRAVEL = 66.8%
14.6 MA 0.29 BAR
ACTUATOR
PRESSURE
SENSOR
MINOR LOOP
FEEDBACK
DRIVE
SIGNAL
SINGLE ACTING
RELAY
(POWER
AMPLIFIER)
I/P
PRESSURE
SIGNAL
I/P
CONVERTER
(PRE-
AMPLIFIER
A traditional 4-20 mA signal provides the set point and power to the instrument. At the same time, the HART protocol
provides instrument and process data through digital communications. The instrument receives this set point and
positions the valve where it needs to be.
D The input signal provides electrical power and the set point simultaneously. It is routed into the terminal board
through a twisted pair of wires. The terminal board contains the termination points for the loop signal (+11/-12). If
the options board is installed, an additional options board set includes additional terminals for the transmitter
output (+31/-32), switch #1 output (+41/-42), and switch #2 output (+51/-52).
D The input signal is then directed to the main electronics board assembly where the microprocessor runs a digital
control algorithm resulting in a drive signal to the I/P converter.
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D The I/P converter assembly is connected to supply pressure and converts the drive signal into a pressure signal. The
I/P converter is the pre-amplifier stage in the two-stage positioner design. This component enables high static gain
for responsiveness to small changes in the input signal.
D The I/P output is sent to the pneumatic relay assembly. The relay is also connected to supply pressure and amplifies
the small pressure signal from the I/P converter into a larger pneumatic output signal used by the actuator. The
pneumatic relay is the power amplifier stage in the two-stage positioner design. This component enables superior
dynamic performance with minimal steady-state air consumption.
D A sensor on the printed wiring board measures the motion of the small valve inside the pneumatic relay. This
measurement is used for minor loop feedback to the control algorithm resulting in stable, robust tuning.
D The change in relay output pressure to the actuator causes the valve to move.
D Valve position is sensed through the non-contact, linkage-less feedback sensor. There are no moving linkages and
the DVC2000 is physically separated from the valve stem through the use of a magnetic Hall effect sensor. A
magnetic array is mounted to the valve stem and the sensor is embedded in the DVC2000 housing. The sensor is
electrically connected to the printed wiring board to provide a travel feedback signal used in the control algorithm.
The valve continues to move until the correct position is attained.
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Local Interface Flow Chart/Menu Trees
July 2020
Appendix B Local Interface Flow Chart and Field Communicator
Menu Trees
This section contains the Local Interface Flow Chart and the Field Communicator menu trees for instrument level HC,
AD, and PD and instrument level AC. It also contains Fast Key Sequence tables with coordinates to help locate the
function/variable on the appropriate menu tree.
Note
Fast-key sequences are only applicable to the 475 Field Communicator. They do not apply to the Trex Device Communicator.
B‐B‐
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Local Interface Flow Chart/Menu Trees
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Local Interface Flow Chart
Instruction Manual
D103176X012
Home Screen
TRAVEL = 66.8%
1
14.6 MA 0.92 BAR
Y
B
2
QUICK SETUP
Y
B
TRAVEL
3
CALIBRATION
Y
B
TUNING
4
Y
B
DETAILED SETUP
5
Y
B
ANALOG INPUT
6
CALIBRATION
Y
B
POSITION
TRANSMITTER CAL
7
Y
B
LOCAL
8
CONTROL
Y
SHUTDOWN
Y
ACTIVATED
Y
VALVE WILL MOVE
Y
PRESS FOR 3 SEC
Y
CALIBRATION
Y
AUTOMATIC
Y
TUNING
Y
AUTOMATIC
Y
ZERO CTL SIGNAL
VALVE CLOSED
Y
VALVE WILL MOVE
Y
PRESS FOR 3 SEC
Y
mA OUT WILL CHANGE
PRESS FOR 3 SEC
Only when transmitter / limit switch hardware is installed.
Y
CONTROL
ANALOG
Y
AUTOMATIC
MANUAL
Y
AUTOMATIC
MANUAL
CLOSED
OPEN
ANALOG OR DIGITAL
MANUAL
Y
Y
Y
Y
These items are identified by an alert icon on the default screen
TRAVEL
DEVIATION
Y
FINDING 0% ...
Y
VALVE WILL MOVE
PRESS FOR 3 SEC
VALVE WILL MOVE
PRESS FOR 3 SEC
AUTO
VALVE MAY MOVE
PRESS FOR 3 SEC
MANUAL
Y
PRESSURE UNITS
BAR
BAR
PSI
KPA
Y
APPLY 4 mA
THEN PRESS
Y
USE OR
TO SEND 4 mA
Y
MANUAL SP = XXX
TRAVEL = XXX
Y
Y
Y
AUTO
Y
MANUAL
Y
Y
Y
Y
Y
Y
CHECK
MOUNTING
FINDING 100% ...
FINDING 100% ...
MOVE VALVE TO
100% TRAVEL
AUTOTUNING IN
PROGRESS...
TUNING
C
EXPERT,
C,D,E,F,G
H,I,J,K,L,M
INPUT RANGE
LOW 4 mA
4 mA
...
19 mA
APPLY 20 mA
THEN PRESS
USE OR
TO SEND 20 mA
!
CHECK
SUPPLY
Y
Y
FINDING 0% ...
Y
MOVE VALVE TO
0% TRAVEL
Y
AUTOTUNING
COMPLETE
Y
AUTOTUNING FAILED
USE MANUAL TUNING
Y
DAMPING
NEUTRAL
+5
NEUTRAL
-5
Y
Y
INPUT RANGE
HIGH 20 mA
5 mA
...
20 mA
Y
SAVE AND EXIT?
PRESS
1
Y
Y
1
CHECK I/P
CONVERTER
Y
FINDING 50% ...FINDING 0% ...
Y
FINDING 50% ...
Y
FINDING 50% ...
1
Y
SAVE AND EXIT?
PRESS
Y
CHARACTERISTIC
LINEAR
SAVE AND EXIT?
EXIT W/O SAVING?
QUICK OPEN
LINEAR
EQUAL %
CUSTOM
1
Y
SAVE AND EXIT?
EXIT W/O SAVING?
Y
SAVE AND EXIT?
PRESS
SAVE AND EXIT? EXIT
W/O SAVING?
1
58
Instruction Manual
D103176X012
Only when transmitter / limit switch
hardware is installed
Local Interface Flow Chart/Menu Trees
July 2020
REPLACE MAIN
BOARD
QUICK SETUP
COMPLETE
YY
CALIBRATION
COMPLETE
Y
CALIBRATION
FAILED
Y
SAVE AND EXIT?
PRESS
Y
SWITCH1 = OPEN
Y
SWITCH 2 = CLOSED
1
1
1
1
SAVE AND EXIT? EXIT
W/O SAVING?
Y
Y
FW3:1, HW1:2
TUNING = C
Y
Y
PROTECTION
OFF
OFF
ON
1
+
INVERT DISPLAY 180
Note: Hold + for 3 to 10 seconds
+
CANCEL
(TAKES YOU TO THE HOME SCREEN)
Note: Hold + for 3 to 10 seconds
+ + +
LANGUAGE SELECTION
Note: Hold + + +
for 3 to 10 seconds
Y
TRANSMITTER
4 mA CLOSED
Only when transmitter / limit
switch hardware is installed.
CLOSED
OPEN
Y
SWITCH1
Y
TRIP POINT 90%
Y
SWITCH1 CLOSED
Y
ABOVE 90%
125%
...
-25%
Only when transmitter / limit switch hardware is installed
ABOVE
BELOW
DISABLED
Y
SWITCH2
Y
TRIP POINT 10%
125%
...
-25%
Y
SWITCH2 CLOSED
Y
BELOW 10%
BELOW
ABOVE
DISABLED
Y
SAVE AND EXIT?
PRESS
Y
Y
EXIT W/O SAVING?
PRESS
Y
VALVE MAY MOVE
Y
PRESS FOR 3 SEC
Y
Y
1
1
59
Local Interface Flow Chart/Menu Trees
(1)
(1)
(2)
(2)
(2)
(2)
(2)
(2)
July 2020
475 Field Communicator Fast‐Key Sequence (Instrument Level HC, AD and PD)
Function/Variable
Actuator Style1-2-5-24-E
Alert Record1-2-7-64-G
Analog Input21-E
Analog Input Calibration1-4-12-E
Analog Input Range High1-2-4-24-D
Analog Input Range Low1-2-4-34-D
Analog Input Units1-2-4-14-D
Auto Calibrate Travel1-4-22-E
Auto Setup1-1-12-B
Auto Tuner1-1-1-33-B
Basic Setup1-12-B
Burst1-2-1-54-C
Calibrate1-42-E
Control Mode1-2-1-23-C
Custom Characteristic Table1-2-6-54-F
Cycle Count1-2-7-4-46-H
Cycle Count Alert1-2-7-46-H
Cycle Count Alert Enable1-2-7-4-16-H
Cycle Count Alert Point1-2-7-4-26-H
Cycle Count Deadband1-2-7-4-36-H
Damping Factor1-1-2-3-24-C
Date1-2-3-45-D
Descriptor1-2-3-35-D
Device Description Revision1-3-32-F
Device Identification1-3-2-92-H
Device Information1-3-22-G
Device Revision1-3-2-22-G
Drive Alert Enable1-2-7-5-15-H
Drive Current Fail1-2-8-43-F
Drive Signal51-E
Enable Integral Control1-2-6-9-16-G
Expert Tuning Gains1-1-1-4-35-B
Failure Alerts7-21-G
Failure Group Enable1-2-7-6-4-26-I
Firmware Date1-3-2-42-G
Firmware Revision1-3-2-32-G
Flash Rom Failure1-2-8-13-E
HART Tag1-2-3-15-D
HART Universal Revision1-3-2-12-G
Input Characterization1-2-6-44-F
Instrument Level1-3-2-82-G
Instrument ModeHot Key1-A
Instrument Serial Number1-2-3-65-D
Instrument Status71-E
Integral Dead Zone1-2-6-9-36-G
Integral Gain1-2-6-9-26-G
Integral Settings1-2-6-96-G
Limit Switch Stat Enable1-2-7-6-4-36-I
LUI Language1-2-3-85-D
LUI Pressure Units1-2-4-54-D
Main Electronics Revision1-3-2-52-G
Manual Calibrate Travel1-4-32-E
Manual Setup1-1-23-B
Maximum Supply Pressure1-2-5-14-E
Message1-2-3-25-D
Minimum Opening Time1-2-6-8-16-F
Minimum Closing Time1-2-6-8-26-F
NVM Fail1-2-8-53-F
Operational Status7-31-G
1. Coordinates are to help locate the item on the menu tree on the facing page.
2. Available only if the instrument has a transmitter and limit switches installed.
Fast-Key
Sequence
Coordinates
Function/Variable
Polling Address1-2-3-75-D
Pressure61-E
Pressure Calibration1-4-42-E
Pressure Sensor Failure1-2-8-73-F
Pressure Units1-2-4-44-D
ProtectionHot Key1-A
Reference Voltage Failure1-2-8-33-F
Response Control1-2-64-E
Restart1-2-1-43-C
Restart Control Mode1-2-1-33-C
Secondary Electronics Revision1-3-2-62-G
Self Test Shutdown1-2-82-D
Sensor Serial Number1-3-2-72-G
Set Point Filter Time1-2-6-64-F
Setup Wizard1-1-1-13-B
Stroke Valve1-51-D
Switch 1 Closed
Switch 1 Trip Point
Switch 2 Closed
Switch 2 Trip Point
Temperature1-3-1-13-G
Temperature Comp Fail1-2-8-23-F
Temperature Sensor Fail1-2-8-63-F
Temperature Units1-2-4-64-D
Transmitter Action
Transmitter Calibration
Travel31-E
Travel Accumulator1-2-7-3-45-H
Travel Accumulator Alert Enable1-2-7-3-15-G
Travel Accumulator Alert Point1-2-7-3-25-G
Travel Accumulator Dead Band1-2-7-3-35-G
Travel Alert Deadband1-2-7-1-75-G
Travel Alert High Point1-2-7-1-35-G
Travel Alert High High Point1-2-7-1-55-G
Travel Alert Low Point1-2-7-1-45-G
Travel Alert Low Low Point1-2-7-1-65-G
Travel Cutoff Low1-2-6-7-46-F
Travel Cutoff High1-2-6-7-36-F
Travel Deviation Alert Enable1-2-7-2-16-G
Travel Deviation Alert Point1-2-7-2-26-G
Travel Deviation Time1-2-7-2-36-G
Travel High / Low Enable1-2-7-1-15-F
Travel High High / Low Low Enable1-2-7-1-25-F
Travel Limit High1-2-6-7-16-E
Travel Limit Low1-2-6-7-26-F
Travel Sensor Failure1-2-8-83-F
Travel Setpoint41-E
TuningHot Key1-B
Tuning Set1-1-2-3-14-C
Valve Group Enable1-2-7-6-4-16-I
Valve Style1-2-5-34-E
Valve Serial Number1-2-3-55-D
Zero Control Signal1-2-5-44-E
1 Tuning Set
2 Damping Factor
3 Expert Tuning Gains
Press and Actuator
1 Pressure Units
2 LUI Pressure Units
3 Max Supply Press
4 Zero Control Signal
Tuning and Calib
1 Tuning Set
2 Damping Factor
3 Expert Tuning Gains
4 Tvl Cutoff Lo
5 Auto Calib Travel
1
1‐1‐1‐4‐3
1‐1‐2‐3‐3
1‐2‐3‐3
1‐2‐3‐5
1‐2‐3‐6
Expert Tuning Gains
1 Prop Gain
2 Vel Gain
3 MLFB Gain
Expert Tuning Gains
1 Prop Gain
2 Vel Gain
3 MLFB Gain
Expert Tuning Gains
1 Prop Gain
2 Vel Gain
3 MLFB Gain
Travel Cutoffs
1 Travel Cutoff Hi
2 Travel Cutoff Lo
Integral Settings
1 Enab Int Control
2 Integral Gain
3 Integral Dead Zone
A
B
C
D
E
F
G
12345
H
I
6
63
Local Interface Flow Chart/Menu Trees
July 2020
Instruction Manual
D103176X012
64
Instruction Manual
D103176X012
Glossary
Glossary
July 2020
Alert Point
An adjustable value that, when exceeded,
activates an alert.
Algorithm
A set of logical steps to solve a problem or
accomplish a task. A computer program contains
one or more algorithms.
Alphanumeric
Consisting of letters and numbers.
Analog Input Units
Units in which the analog input is displayed and
maintained in the instrument.
ANSI (acronym)
The acronym ANSI stands for the American
National Standards Institute
ANSI Class
Valve pressure/temperature rating.
Bench Set
Pressure, supplied to an actuator, required to
drive the actuator through rated valve travel.
Expressed in pounds per square inch.
Calibration Location
Where the instrument was last calibrated; either
in the factory or in the field.
Configuration
Stored instructions and operating parameters for
a FIELDVUE Instrument.
Control Loop
An arrangement of physical and electronic
components for process control. The electronic
components of the loop continuously measure
one or more aspects of the process, then alter
those aspects as necessary to achieve a desired
process condition. A simple control loop
measures only one variable. More sophisticated
control loops measure many variables and
maintain specified relationships among those
variables.
Control Mode
Defines where the instrument reads its set point.
The following control modes are available for a
FIELDVUE instrument:
Analog The instrument receives its travel set
point over the 4-20 mA loop.
Digital The instrument receives its set point
digitally, via the HART communications link.
Test This is not a user‐selectable mode. The Field
Communicator or ValveLink Software places the
instrument in this mode whenever it needs to
move the valve, such as for calibration or
diagnostic tests.
Byte
A unit of binary digits (bits). A byte consists of
eight bits.
Control Mode, Restart
Determines the instrument control mode after a
restart. See Control Mode for the available restart
control modes.
65
Glossary
July 2020
Instruction Manual
D103176X012
Controller
A device that operates automatically to regulate a
controlled variable.
Current‐to‐Pressure (I/P) Converter
An electronic component or device that converts
a milliamp signal to a proportional pneumatic
pressure output signal.
Cycle Counter
The capability of a FIELDVUE instrument to record
the number of times the travel changes direction.
The change in direction must occur after the
deadband has been exceeded before it can be
counted as a cycle.
Cycle Counter Alert
Checks the difference between the Cycle Counter
and the Cycle Counter Alert Point. Cycle Counter
Alert is active when the cycle counter value
exceeds the Cycle Counter Alert Point. It clears
after you reset the Cycle Counter to a value less
than the alert point.
Cycle Counter Alert Point
An adjustable value which, when exceeded,
activates the Cycle Counter Alert. Valid entries
are 0 to 4 billion cycles.
Cycle Counter Deadband
Region around the travel reference point, in
percent of ranged travel, established at the last
increment of the Cycle Counter. The deadband
must be exceeded before a change in travel can
be counted as a cycle. Valid entries are 0% to
100%. Typical value is between 2% and 5%.
Deviation
Usually, the difference between set point and
process variable. More generally, any departure
from a desired or expected value or pattern.
Device ID
Unique identifier embedded in the instrument at
the factory.
Device Revision
Revision number of the interface software that
permits communication between the Field
Communicator and the instrument.
Drive Signal
The signal to the I/P converter from the printed
wiring board. It is the percentage of the total
microprocessor effort needed to drive the valve
fully open.
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 active. If
none of the conditions exist, the alert is cleared.
If Zero Control Signal = Closed
The alert is active when:
drive signal <10% and calibrated travel >3%
drive signal >90% and calibrated travel <97%
If Zero Control Signal = Open
The alert is active when:
drive signal <10% and calibrated travel <97%
drive signal >90% and calibrated travel >3%
66
Instruction Manual
D103176X012
Glossary
July 2020
Equal Percentage
A valve flow characteristic where equal
increments of valve stem travel produce equal
percentage changes in existing flow. One of the
input characteristics available for a FIELDVUE
Instrument. See also, Linear and Quick Opening.
Feedback Signal
Indicates to the instrument the actual position of
the valve. The travel sensor provides the feedback
signal to the instrument printed wiring board
assembly.
Firmware Revision
The revision number of the instrument firmware.
Firmware is a program that is entered into the
instrument at time of manufacture and cannot be
changed by the user.
Free Time
Percent of time that the microprocessor is idle. A
typical value is 25%. The actual value depends on
the number of functions in the instrument that
are enabled and on the amount of
communication currently in progress.
Full Ranged Travel
Current, in mA, that corresponds with the point
where ranged travel is maximum, i.e., limited by
the mechanical travel stops.
Gain
The ratio of output change to input change.
HART Universal Revision
Revision number of the HART Universal
Commands which are the communications
protocol for the instrument.
Input Characteristic
The relationship between the ranged travel and
ranged input. Possible values include: linear,
equal percentage, and quick opening.
Input Current
The current signal from the control system that
serves as the analog input to the instrument. See
also Input Signal.
Input Range
The analog input signal range that corresponds to
the travel range.
Input Signal
The current signal from the control system. The
input signal can be displayed in milliamperes or in
percent of ranged input.
Instrument Level
Determines the functions available for the
instrument. See table 3‐1.
Hardware Revision
Revision number of the Fisher instrument
hardware. The physical components of the
instrument are defined as the hardware.
HART (acronym)
The acronym HART stands for Highway
Addressable Remote Transducer.
HART Tag
An eight‐character name that identifies the
physical instrument.
Instrument Mode
Determines if the instrument responds to its
analog input signal. There are two instrument
modes:
In Service: For a fully functioning instrument, the
instrument output changes in response to analog
input changes. Typically changes to setup or
calibration cannot be made when the instrument
mode is In Service.
Out of Service: The instrument output does not
change in response to analog input changes
when the instrument mode is Out of Service.
Some setup parameters can be changed only
when the instrument mode is Out of Service.
67
Glossary
July 2020
Instruction Manual
D103176X012
Instrument Protection
Determines if commands from a HART device can
calibrate and/or configure certain parameters in
the instrument. There are two types of
instrument protection:
Configuration and Calibration: Prohibits changing
protected setup parameters; prohibits
calibration.
None: Permits both configuration and calibration.
The instrument is ”unprotected.”
Instrument Serial Number
The serial number assigned to the printed wiring
board by the factory but can be changed during
setup. The instrument serial number should
match the serial number on the instrument
nameplate.
Leak Class
Defines the allowable leakage by a valve when it is
closed. Leak class numbers are listed in two
standards: ANSI/FCI 70‐2‐1991 and IEC 534‐4.
Linear
A valve flow characteristic where changes in flow
rate are directly proportional to changes in valve
stem travel. One of the input characteristics
available for a FIELDVUE Instrument. See also,
Equal Percentage and Quick Opening.
Linearity, dynamic
Linearity (independent) is the maximum
deviation from a straight line best fit to the
opening and closing curves and a line
representing the average value of those curves.
Menu
A list of programs, commands, or other activities
that you select by using the arrow keys to
highlight the item then pressing ENTER, or by
entering the numeric value of the menu item.
Minimum Closing Time
Minimum time, in seconds, for the travel to
decrease through the entire ranged travel. This
rate is applied to any travel decrease. Valid entries
are 0 to 400 seconds. Deactivate by entering a
value of 0 seconds.
Minimum Opening Time
Minimum time, in seconds, for the travel to
increase through the entire ranged travel. This
rate is applied to any travel increase. Because of
friction, actual valve travel may not respond in
exactly the same time frame. Valid entries are 0
to 400 seconds. Deactivate by entering a value of
0 seconds.
Non‐Volatile Memory (NVM)
A type of semiconductor memory that retains its
contents even though power is disconnected.
NVM contents can be changed during
configuration unlike ROM which can be changed
only at time of instrument manufacture. NVM
stores configuration restart data.
Parallel
Simultaneous: said of data transmission on two or
more channels at the same time.
Memory
A type of semiconductor used for storing
programs or data. FIELDVUE instruments use
three types of memory: Random Access Memory
(RAM), Read Only Memory (ROM), and
Non‐Volatile Memory (NVM). See also these
listings in this glossary.
68
Polling Address
Address of the instrument. If the digital valve
controller is used in a point‐to‐point
configuration, set the polling address to 0. If it is
used in a multidrop configuration, or split range
application, set the polling address to a value
from 0 to 15.
Instruction Manual
D103176X012
Glossary
July 2020
Pressure Sensor
A FIELDVUE instrument internal device that
senses pneumatic pressure. DVC2000 digital
valve controllers have one actuator pressure
sensor.
Primary Master
Masters are communicating devices. A primary
master is a communicating device permanently
wired to a field instrument. Typically, a
HART‐compatible control system or a computer
running ValveLink Software is the primary master.
In contrast, a secondary master is not often
permanently wired to a field instrument. The 375
Field Communicator or a computer running
ValveLink Software communicating through a
HART modem could be considered a secondary
master.
Note: If one type of master takes an instrument
Out Of Service, the same type must put it In
Service. For example, if a device set up as a
primary master takes an instrument Out Of
Service, a device set up as a primary master must
be used to place the instrument In Service.
Seat Load
Force exerted on the valve seat, typically
expressed in pounds force per lineal inch of port
circumference. Seat load is determined by shutoff
requirements.
Set Point Filter Time
The time constant, in seconds, for the first‐order
input filter.
Software
Microprocessor or computer programs and
routines that reside in alterable memory (usually
RAM), as opposed to firmware, which consists of
programs and routines that are programmed into
memory (usually ROM) when the instrument is
manufactured. Software can be manipulated
during normal operation, firmware cannot.
Quick Opening
A valve flow characteristic where most of the
change in flow rate takes place for small amounts
of stem travel from the closed position. The flow
characteristic curve is basically linear through the
first 40 percent of stem travel. One of the input
characteristics available for a FIELDVUE
Instrument. See also, Equal Percentage and
Linear.
Random Access Memory (RAM)
A type of semiconductor memory that is normally
used by the microprocessor during normal
operation that permits rapid retrieval and storage
of programs and data. See also Read Only
Memory (ROM) and Non‐Volatile Memory (NVM).
Rate
Amount of change in output proportional to the
rate of change in input.
Read‐Only Memory (ROM)
A memory in which information is stored at the
time of instrument manufacture. You can
examine but not change ROM contents.
Stroking Time
The time, in seconds, required to move the valve
from its fully open position to fully closed, or vice
versa.
Temperature Sensor
A device within the FIELDVUE instrument that
measures the instrument's internal temperature.
Travel
Movement of the valve stem or shaft which
changes the amount the valve is open or closed.
Travel Accumulator
The capability of a FIELDVUE instrument to record
total change in travel. The value of the Travel
Accumulator increments when the magnitude of
the change exceeds the Travel Accumulator
Deadband. To reset the Travel Accumulator, set it
to zero.
69
Glossary
July 2020
Instruction Manual
D103176X012
Travel Accumulator Alert
Checks the difference between the Travel
Accumulator value and the Travel Accumulator
Alert Point. The Travel Accumulator Alert is active
when the Travel Accumulator value exceeds the
Travel Accumulator Alert Point. It clears after you
reset the Travel Accumulator to a value less than
the alert point.
Travel Accumulator Alert Point
An adjustable value which, when exceeded,
activates the Travel Accumulator Alert. Valid
entries are 0% to 4 billion %.
Travel Accumulator Deadband
Region around the travel reference point
established at the last increment of the
accumulator. This region must be exceeded
before a change in travel can be accumulated.
Valid entries are 0% to 100%.
Travel Alert
Checks the ranged travel against the travel high
and low alert points. The travel alert is active if
either the high or low point is exceeded. Once a
high or low point is exceeded, the ranged travel
must clear that point by the Travel Alert
Deadband before the alert clears. Four travel
alerts are available: Travel Alert Hi, Travel Alert Lo,
Travel Alert Hi Hi, and Travel Alert Lo Lo.
Travel Alert Deadband
Travel, in percent of ranged travel, required to
clear a travel alert, once it is active. Valid entries
are -25% to 125%.
Travel Alert High Point
Value of the travel, in percent of ranged travel,
which, when exceeded, sets the Travel Alert Hi
alert. Valid entries are -25% to 125%.
Travel Alert Low Point
Value of the travel, in percent of ranged travel,
which, when exceeded, sets the Travel Alert Lo
alert. Valid entries are -25% to 125%.
Travel Alert Low Low Point
Value of the travel, in percent of ranged travel,
which, when exceeded, sets the Travel Alert Lo Lo
alert. Valid entries are -25% to 125%.
Travel Cutoff
Defines the cutoff point for the travel, in percent
of ranged travel. There are two travel cutoffs:
high and low. Once travel exceeds the cutoff, the
drive signal is set to either maximum or
minimum, depending on the Zero Control Signal
and if the cutoff is high or low. Minimum opening
time or minimum closing time are not in effect
while the travel is beyond the cutoff. Use the
travel cutoff to obtain the desired seat load or to
be sure the valve is fully open.
Travel Deviation
The difference between the analog input signal
(in percent of ranged input), the “target” travel,
and the actual “ranged” travel.
Travel Deviation Alert
Checks the difference between the target and the
ranged travel. If the difference exceeds the Travel
Deviation Alert Point for more than the Travel
Deviation Time, the Travel Deviation Alert is
active. It remains active until the difference is less
than the Travel Deviation Alert Point.
Travel Deviation Alert Point
An adjustable value for the target travel and the
ranged travel difference, expressed in percent,
When this value is exceeded by the travel
deviation for more than the Travel Deviation
Time, the Travel Deviation Alert is active. Valid
entries are 0% to 100%. Typically this is set to 5%.
Travel Alert High High Point
Value of the travel, in percent of ranged travel,
which, when exceeded, sets the Travel Alert Hi Hi
alert. Valid entries are -25% to 125%.
70
Travel Deviation Time
The time, in seconds. that the travel deviation
must exceed the Travel Deviation Alert Point
before the alert is active. Valid entries are 1 to 60
seconds.
Instruction Manual
D103176X012
Glossary
July 2020
Travel Limit
A setup parameter that defines the maximum
allowable travel (in percent of ranged travel) for
the valve. During operation, the travel target will
not exceed this limit. There are two travel limits:
high and low. Typically the travel limit low will be
used to keep the valve from going completely
closed.
Travel Range
Travel, in percent of calibrated travel, that
corresponds to the input range.
Travel Sensor
A device within the FIELDVUE instrument that
senses valve stem or shaft movement.
Tuning
The adjustment of control terms or parameter
values to produce a desired control effect.
Tuning Set
Preset values that identify gain settings for a
FIELDVUE instrument. The tuning set and supply
pressure together determine an instrument's
response to input signal changes.
Watch Dog Timer
A timer that the microprocessor must rearm
periodically. If the microprocessor is unable to
rearm the timer, the instrument goes through
reset.
Zero Control Signal
A setup parameter that determines whether the
valve is fully open or fully closed when the input
signal is 0%.
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Glossary
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Instruction Manual
D103176X012
72
Instruction Manual
D103176X012
Index
Index
July 2020
A
AC (Auto Calibrate), 4, 34
Actuator and Valve Information, 16
Actuator Information, for Setup, 12
AD (Advanced Diagnostics), 4, 34
Advanced Diagnostics (AD), 4, 34
Air Capacity, 5
Air Consumption, 5
Airset option, 6
Alert Record, 23, 36
Clearing, 23
Displaying, 23
Enabling Alert Groups, 23
Inst Date & Time, 23
Alert Record has Entries, 35
Alert Record is Full, 35
Cycle Counter Alert, 35
Drive Signal Alert, 35
Instrument Time is Invalid, 35
Non-critical NVM Alert, 35
Power Starvation Alert, 35
Tvl Accumulation Alert, 35
Tvl Alert Hi, 35
Tvl Alert Hi Hi, 35
Tvl Alert Lo, 35
Tvl Alert Lo Lo, 35
Tvl Deviation Alrt, 35
Tvl Lim/Cutoff High, 35
Tvl Lim/Cutoff Low, 35
Valve Serial Number, 14
Valve Setpoint, Displaying Value, 33
VDI/VDE 3845 mounting standards, 5
Vibration Testing Method, 5
Viewing Variables, 33
Analog Input, Travel, Valve Set Point, Drive Signal
and Output Pressure, 33
Voltage Available, Checking, 46
W
Weight, DVC2000, 6
Z
Zero Control Signal, 15, 16, 23, 71
77
Index
July 2020
Instruction Manual
D103176X012
78
Instruction Manual
D103176X012
Digital Valve Controller
July 2020
79
DVC2000 Digital Valve Controller
July 2020
Instruction Manual
D103176X012
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of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.
Fisher, FIELDVUE, ValveLink, Tri-Loop, Rosemount are marks owned by one of the companies in the Emerson Automation Solutions business unit of Emerson
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to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
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products at any time without notice.
Emerson Automation Solutions
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Cernay, 68700 France
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
80
E 2004, 2020 Fisher Controls International LLC. All rights reserved.
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