Instruction Manual

ManualsBrandsEmerson ManualsValve InstrumentationEmerson Fisher FIELDVUEDVC6200 SIS Digital Valve Controller

Detailed Setup

September 2013

4-7

Table 4-3. Conditions for Modifying FIELDVUE DVC6000 SIS Digital Valve Controller Parameters (Continued)

Parameters

In Service Out of Service

Protected Unprotected Protected Unprotected

Valve & Actuator

Relay Type

Zero Power Condition

Maximum Supply Pressure

Auxiliary Terminal Action

Instrument Date and Time

Last Calibration Status

(1)

Calibration Location

(1)

- - -



- - -



- - -



- - -



- - -

Manufacturer

(1)

Valve Serial Number

Valve Style

Actuator Style

View/Edit Feedback Connection

Travel Sensor Motion

- - -



- - -



SIS / Partial

Stroke

Partial Stroke Test Enable

Partial Stroke Press Limit

Maximum Travel Movement

Test Speed

Test Pause Time

View/Edit Auto Test Interval

Device Power Up

- - -



- - -



—indicates parameter may be modified for instrument mode and protection shown.

1. Information only.

Note

When selecting a tuning set for a

DVC6015, DVC6025 or DVC6035 remote

mount unit, it may be necessary to

reduce the tuning set, due to the

effects of the long tubing between the

digital valve controller and the

actuator.

Note

Use Expert tuning only if standard

tuning has not achieved the desired

results.

Stabilize/Optimize or Performance

Tuner may be used to achieve the

desired results more rapidly than

Expert tuning.

Table 4-4 provides tuning set selection guidelines for

Fisher actuators. These tuning sets are only

recommended starting points. After you finish setting

up and calibrating the instrument, you may have to

select either a higher or lower tuning set to get the

desired response. You can use the Performance

Tuner to optimize tuning.

 Integral Enable—Yes or No. Enable the integral

setting to improve static performance by correcting for

error that exists between the travel target and actual

travel. Travel Integral Control is disabled by default.

 Integral Gain—Travel Integral Gain is the ratio

of the change in output to the change in input, based

on the control action in which the output is proportional

to the time integral of the input.

 Stabilize/Optimize—Stabilize/Optimize permits

you to adjust valve response by changing the digital

valve controller tuning.

If the valve is unstable, select Decrease Response to

stabilize valve operation. This selects the next lower

tuning set (e.g., F to E). If the valve response is

sluggish, select Increase Response to make the valve

more responsive. This selects the next higher tuning

set (e.g., F to G).

If after selecting Decrease Response or Increase

Response the valve travel overshoot is excessive,

select Decrease Damping to select a damping value

that allows more overshoot. Select Increase Damping

to select a damping value that will decrease the

overshoot. When finished, select done.