Maintenance and Troubleshooting
June 2017
Instruction Manual
D103176X012
39
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 Communicator Setup & 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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