Instruction Manual

Instruction Manual

D103557X012

Device Information, Diagnostics, and Alerts

January 2015

Solenoid Valve Health Monitoring

The following steps assume the use of a single‐acting actuator with a solenoid valve installed. The DVC6200 SIS digital

valve controller, with single‐acting, direct relay C, must be powered separately from the solenoid. The unused output

of the DVC6200 SIS must be connected between the solenoid and the actuator as described in the Installation section.

The relay configuration selection must be “special application” and ValveLink software must have the triggered profile

enabled.

1. When allowed by the Logic Solver, momentarily remove and then restore power to the solenoid (typically 100 to

200 milliseconds). This process should occur quickly enough that the valve assembly does not move when the

solenoid is de‐energized.

2. With ValveLink software, upload the diagnostic data from the triggered profile menu.

3. Examine the graph and observe that there was a change in the pressure reading downstream of the solenoid.

Variables

Field Communicator Service Tools > Variables (3-4)

The Variables section provides current values of the instrument variables. Below is a list of the variables available for

viewing:

D Write Protection (also provides a procedure to enable/disable)

D Instrument Mode (also provides a procedure to place in/out of service)

D Analog Input

D Setpoint

D Travel

D Drive Signal

D Input Characterization (also provides a procedure to modify)

D Cycle Counter

D Travel Accumulator

D Supply Pressure

D Actuator Pressure(s)

D Instrument Temperature

D Travel Counts (this is the raw travel sensor reading used for advanced adjustments)

D Maximum Recorded Temperature

D Minimum Recorded Temperature

D Number of Power Ups

D Days Powered Up