Emerson Fisher FIELDVUE DVC7K Bedienungsanleitung

www.Fisher.com

Fisher™FIELDVUE™DVC7K Series Digital Valve

Controllers

Contents

Related Documents 2..............................................

Using this Guide 2.................................................

Step 1. Install the DVC7K on the Valve 3...............................

Housing Variations 3.............................................

Valve/Actuator Mounting 4.......................................

Sliding-Stem Linear Actuators 6..................................

Bracket Mounted 6..........................................

Integral Mounted Fisher Actuators 9............................

Quarter-Turn Rotary Actuators 14................................

Integral Mounted Fisher Actuators 14...........................

Bracket Mounted 15.........................................

Step 2. Connect the Pneumatic Tubing 17.............................

Step 3. Connect the Electrical Wires 24................................

DVC7K Digital Valve Controller 24..................................

I/O Options: Position Transmitter and Two Discrete Switches 26........

Local User Interface (LUI) Flow Chart 29...............................

Step 4. Configure the DVC7K 31.....................................

Using the LUI 31.................................................

Using an Emerson Handheld Communicator 35.......................

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

This quick start guide provides installation and initial

setup information for DVC7K digital valve controllers

X1963

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Related Documents

The DVC7K instruction manual includes product specifications, reference materials,

custom setup information, maintenance procedures, and replacement part details.

If a copy of this document is needed scan or click the QR code at the right, contact

your Emerson sales office or visit our website at Fisher.com.

Using this Guide

This guide describes how to install the digital valve controller and setup and calibrate using the Local User Interface

(LUI). The LUI consists of a display, six pushbuttons, and a multi-color LED indicator. The LUI is field configurable to one

of 13 different languages, as shown in table 2 on page 33. The instrument must be powered with at least 10 volts and 4

mA to operate the LUI. Certain procedures require up to 20 mA of current.

You can also setup and calibrate the instrument using an Emerson handheld communicator or with a personal

computer with AMS Device Configurator. For information on using the software with a FIELDVUE instrument, refer to

the appropriate user guide or help.

Do not install, operate, or maintain a DVC7K 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 contents of this

quick start guide, including all safety cautions and warnings. If you have any questions about these

instructions, contact your Emerson sales office before proceeding.

WARNING

Avoid personal injury or property damage from sudden release of process pressure or bursting of parts. Before proceeding

with any Installation procedures:

D Always wear protective clothing, gloves, and eyewear to prevent 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 valve.

D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

from both sides of the 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.

Scan or click code for

Installation Documents

& Field Support

emrsn.co/FieldSupportDVC7K

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

WARNING

To avoid static discharge from the plastic portion of the cover when flammable gases or dust are present, do not rub or

clean the cover with solvents. To do so could result in a spark that may cause the flammable gases or dust to explode,

resulting in personal injury or property damage. Clean with a mild detergent and water only.

NOTICE

Do not use sealing tape on pneumatic connections. This instrument contains small passages that may become obstructed

by detached sealing tape. Thread sealant paste should be used to seal and lubricate pneumatic threaded connections.

Step 1—Installation

Housing Variations

The DVC7K digital valve controller has a variety of different housing options.

The instrument comes with a Local User Interface (LUI), as shown in figure 1.

Figure 1. Local User Interface

HOUSING WITH LOCAL USER INTERFACE

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Additionally, the instrument can be ordered with three different electrical and pneumatic configurations. Table 1

shows the available configurations and figure 2 shows where the electrical conduit entries and pneumatic ports are

located on the instrument.

Table 1. Electrical and Pneumatic Configurations

Electrical Conduit Entry Size Pneumatic Port Size

Imperial 1/2 NPT 1/4 NPT

Metric M20 G1/4

Metric/Imperial M20 1/4 NPT

Figure 2. Electrical and Pneumatic Configuration

LEFT ELECTRICAL

CONDUIT ENTRY

PNEUMATIC

CONDUIT

ENTRIES

BOTTOM LEFT AND RIGHT

ELECTRICAL CONDUIT ENTRY

Valve/Actuator Mounting

If ordered as part of a control valve assembly, the factory will mount the digital valve controller on the actuator and

calibrate the instrument. If you purchased the digital valve controller separately, you will need a mounting kit. The

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

following procedures are general guidelines. See the instructions that come with the mounting kit for detailed

information on mounting the digital valve controller to a specific actuator model.

NOTICE

The magnet assembly material has been specifically chosen to provide a long‐term stable magnetic field.

However, as with any magnet, care must be taken when handling the magnet assembly. Another high powered magnet

placed in close proximity (less than 25 mm) can cause permanent damage. Potential sources of damaging equipment

include, but are not limited to: transformers, DC motors, stacking magnet assemblies.

General Guidelines for use of High Power Magnets with Positioners

Use of high power magnets in close proximity to any positioner which is operating a process should be avoided. Regardless

of the positioner model, high power magnets can affect the positioner’s ability to control the valve.

Use of Magnetic Tools with the DVC7K

D Magnetic Tip Screw Drivers – Magnetic tip screw drivers can be used to work on the DVC7K. However, they should not

be brought in close proximity to the magnet assembly (located at the back of the instrument) during process

operations.

D Calibrator Strap Magnets – These are high power magnets used to hold 4-20 mA calibrators. Normally,

these calibrators would not be used while an instrument is controlling the process. High power magnets

should be kept at least 15 cm (6 inches) from the DVC7K.

Notes

D As a general rule, do not use less than 60% of the magnet assembly travel range for full travel measurement. Performance will

decrease as the assembly is increasingly subranged.

D The linear magnet assemblies have a valid travel range indicated by arrows molded into the piece. This means that the hall

sensor (the center point of the channel on the back of the DVC7K housing) has to remain within this range throughout the

entire valve travel. The linear magnet assemblies are symmetrical. Either end may be up.

D The magnet assembly may be referred to as a magnetic array in user interface tools.

D Mounting the instrument horizontally with the vent pointing down, or vertically with the vent at the bottom of the instrument,

is recommended to allow drainage of moisture that may be introduced via the instrument air supply.

For sliding‐stem linear actuators proceed to page 6

Bracket Mounted 6.........................................

667 and 657 6...........................................

Actuators over 210 mm (8.25 inches Travel) 8.................

Integral Mounted Fisher Actuators 9...........................

Air-to-Open (667 Size 30i - 76i or GX) 9......................

Air-to-Close (657 Size 30i - 70i or GX) 12......................

For quarter‐turn rotary actuators proceed to page 14

Integral Mounted Fisher Actuators 14...........................

Bracket Mounted 15.........................................

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Sliding‐Stem Linear Actuators

Bracket Mounted

Fisher 667 and 657

1. Isolate the control valve from the process line pressure and release pressure from both sides of the valve body. Shut

off all pressure lines to the actuator, releasing all pressure from the actuator. Use lock‐out procedures to be sure

that the above measures stay in effect while you work on the equipment.

Figure 3. Mounting Parts for Sliding‐Stem Actuator with up to 210 mm (8.25 inches) Travel

ACTUATOR

DIGITAL VALVE

CONTROLLER

FEEDBACK BRACKET

AND MAGNET ASSEMBLY

MOUNTING

BRACKET

2. Attach the mounting bracket to the actuator.

3. Loosely attach the feedback pieces and magnet assembly to the valve stem connector. Do not tighten the fasteners

until the magnet assembly is positioned and aligned in steps 4 and 5.

WARNING

Do not install a magnet assembly that is shorter than the physical travel of the actuator. Loss of control will result from the

magnet assembly moving outside the range of the index mark in the feedback slot of the DVC7K housing and may result in

personal injury or property damage.

4. Using the alignment template (supplied with the mounting kit), position the magnet assembly inside the retaining

slot.

5. Align the magnet assembly as follows:

D For air‐to‐open actuators (e.g. Fisher 667) vertically align the magnet assembly so that the center line of the

alignment template is lined up as close as possible with the upper extreme of the valid travel range on the

magnet assembly. The magnet assembly should be positioned so that the index mark in the feedback slot of the

DVC7K housing is within the valid range on the magnet assembly throughout the range of travel. See figure 4.

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

D For air‐to‐close actuators (e.g. Fisher 657) vertically align the magnet assembly so that the center line of the

alignment template is lined up as close as possible with the lower extreme of the valid travel range on the

magnet assembly. The magnet assembly should be positioned so that the index mark in the feedback slot of the

DVC7K housing is within the valid range on the magnet assembly throughout the range of travel. See figure 5.

Figure 4. Air‐to‐Open Magnet Assembly Alignment

W9718

ALIGNMENT

TEMPLATE

INDEX

MARK

RETAINING

SLOT

Figure 5. Air‐to‐Close Magnet Assembly Alignment

ALIGNMENT

TEMPLATE

W9719

INDEX

MARK

RETAINING

SLOT

6. Tighten the fasteners and remove the alignment template.

Note

Use a flat end hex key to tighten the magnet assembly fasteners to a torque of 2.37 Nm (21 lbfin) for 4 mm screws, and

5.08 Nm (45 lbfin) for 5 mm screws. For added security, especially in vibrating services, blue (medium) threadlocker may be

used on the fasteners.

7. Mount the digital valve controller to the mounting bracket, using the mounting bolts.

8. Check for clearance between the magnet assembly and the DVC7K feedback slot.

Note

Ensure that there is clearance between the magnet assembly and the DVC7K housing slot throughout the full range of travel.

9. Proceed to Step 2—Connect the Pneumatic Tubing on page 17.

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Actuators over 210 mm (8.25 inches) Travel

1. Isolate the control valve from the process line pressure and release pressure from both sides of the valve body. Shut

off all pressure lines to the pneumatic actuator, releasing all pressure from the actuator. Use lock‐out procedures to

be sure that the above measures stay in effect while working on the equipment.

Figure 6. Mounting on Sliding‐Stem (Linear) Actuators over 210 mm (8.25 Inches) Travel

LONG STROKE MOUNTING KIT

(DVC7K NOT SHOWN)

MOUNTING ADAPTOR

W9709

ACTUATOR

VALVE STEM

CONNECTOR

CAM

2. Install the cam to the valve stem connector as described in the instructions included with the mounting kit.

3. Install the mounting adaptor to the actuator.

4. Attach the digital valve controller and mounting kit assembly to the mounting adaptor. The roller on the digital

valve controller feedback arm will contact the actuator cam as it is being attached.

Figure 7. Roller Arm Variation used for Sliding‐Stem (Linear) Actuators over 210 mm (8.25 Inches) Travel

ROLLER

ARM

E1229

CAM

CAM/ROLLER

POSITION MARK

ACTUATOR IS FULLY EXTENDED

ROLLER ARM

E1543

5. Proceed to Step 2—Connect the Pneumatic Tubing on page 17.

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Integral Mounted Fisher Actuators

1. Isolate the control valve from the process line pressure and release pressure from both sides of the valve body. Shut

off all pressure lines to the actuator, releasing all pressure from the actuator. Use lock‐out procedures to be sure

that the above measures stay in effect while you work on the equipment.

2. The DVC7K digital valve controller mounts directly to an integral mounted Fisher actuator without the need for a

mounting bracket. Make sure you have the correct DVC7K housing for your actuator, as shown in figure 2.

3. For GX actuators, identify the yoke side to mount the DVC7K digital valve controller based on the actuator fail

mode. Refer to the GX Control Valve and Actuator System instruction manual (D103175X012).

4. Loosely attach the feedback pieces and magnet assembly to the valve stem connector. Do not tighten the fasteners

until the magnet assembly is positioned and aligned in steps 5 and 6.

WARNING

Do not install a magnet assembly that is shorter than the physical travel of the actuator. Loss of control will result from the

magnet assembly moving outside the range of the index mark in the feedback slot of the DVC7K housing and may result in

personal injury or property damage.

5. Using the alignment template (supplied with the mounting kit), position the feedback assembly inside the retaining

slot.

6. Continue on with the appropriate procedure below to align the magnet assembly.

Air‐to‐Open (667 size 30i - 76i and GX)

Vertically align the magnet assembly so that the center line of the alignment template is lined up as close as possible

with the upper extreme of the valid travel range on the magnet assembly. The magnet assembly should be positioned

so that the index mark in the feedback slot of the DVC7K housing is within the valid range on the magnet assembly

throughout the range of travel. See figure 8.

Quick Start Guide

D104766X012

DVC7K Digital Valve Controllers

October 2023

Figure 8. Air‐to‐Open Magnet Assembly Alignment

ALIGNMENT

TEMPLATE

INDEX MARK

FEEDBACK

PIECES

VALVE STEM

CONNECTOR

RETAINING

SLOT

NOTE:

1 IMAGE DENOTES ACTUATOR AT HALF TRAVEL. ALIGN UPPER EXTREME OF MAGNET ASSEMBLY WITH ALIGNMENT TEMPLATE INDEX MARK.

1. Tighten the fasteners and remove the alignment template.

Note

Use a flat end hex key to tighten the magnet assembly fasteners to a torque of 2.37 Nm (21 lbfin) for 4 mm screws, and

5.08 Nm (45 lbfin) for 5 mm screws. For added security, especially in vibrating services, blue (medium) threadlocker may be

used on the fasteners.

2. Remove the plug (R1/8) from the back of the DVC7K housing as shown in figure 9. This pneumatic output port on

the DVC7K lines up with the integral actuator pneumatic port

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