Flowserve ValveSight Diagnostics User Manual

Page 57

ValveSight Diagnostics for HART User Manual FCD VSENSF0001-02-AQ 03/15

flowserve.com

Indicator

Implications

Possible

Solutions

Default

Settings

Enable/

Disable

Refer to DTM

Screen

Blink

Code

Hall Sen-

sor Lower

Position

Alarm

Indicates the pilot relay

(spool or poppet) appears

to be unable to move in

the lower (depressur-

ized) direction and is not

responding. This could be

due to a hall sensor that is

out of calibration, a broken

piezo, stuck relay, or a wire

connection problem.

A hall sensor problem may be cleared by briefly

pushing the QUICK-CAL button, which will force

the positioner to use the parameters from the

last valid calibration. Check the internal wiring

harnesses for good connections. Check the spool

valve for sticking problems. If the positioner

still does not operate, replace the piezo, driver

module assembly,, and/or spool assembly.

N/A

Yes

N/A

RRYR

N/A

Feedback

Range

Too Small

Alarm

Indicates that during a cali-

bration the range of motion

of the position feedback

arm was too small for

optimum performance.

Check for loose linkages and/or adjust the

feedback pin to a position closer to the follower

arm pivot to create a larger angle of rotation

and recalibrate. Briefly pushing the QUICK-CAL

button acknowledges this condition and the posi-

tioner will operate using the current short stroke

calibration if otherwise a good calibration.

N/A

Calibration >

Stroke

RGGY

Position

Out of

Range

Alarm

Indicates that during

calibration the feedback

sensor moved beyond its

range of operation at the

0% (closed) position.

Adjust the positioner mounting linkage or

feedback potentiometer to move the position

sensor back into range then restart the calibra-

tion. This error may be cleared by briefly pushing

the QUICK-CAL button, which will force the

positioner to use the parameters from the last

good calibration.

N/A

Calibration >

Stroke

RGGY

100%

Position

Out of

Range

Alarm

Indicates that during

calibration the feedback

sensor moved beyond its

range of operation at the

100% (open) position.

To correct the condition, adjust the positioner

mounting, linage or feedback potentiometer to

move the position sensor back into range then

restart the calibration. This error may be cleared

by briefly pushing the QUICK-CAL button, which

will force the positioner to use the parameters

from the last good calibration.

N/A

Calibration >

Stroke

RGGY

No Motion

Time Out

Alarm

Indicates that during

calibration there was no

motion of the actuator

based on the current stroke

time configuration.

Check linkages and air supply to make sure the

system is properly connected. If the time out

occurred because the actuator is very large then

simply retry the QUICK-CAL and the positioner

will automatically adjust for a longer actuator by

doubling the time allowed for movement. This er-

ror maybe cleared by briefly pushing the QUICK-

CAL button, which will force the positioner to use

the parameters from the last good calibration.

N/A

Calibration >

Stroke

RGYY

Non-Settle

Time Out

Alarm

Indicates that during

calibration the position

feedback sensor did not

settle.

Check for loose linkages or a loose positioner

sensor. This error may be cleared by briefly

pushing the QUICK-CAL button, which will force

the positioner to use the parameters from the last

good calibration. This error may appear on some

very small actuators during the initial calibration.

Recalibrating may clear the problem.

N/A

Calibration >

Stroke

RGYG

Inner Loop

Offset

Time Out

Alarm

Indicates that the Inner

Loop Offset value did not

set during calibration.

This could result in less

accurate positioning.

Repeat the stroke calibration to get a more

accurate ILO value. To proceed using the less

accurate ILO value, this error may be cleared by

briefly pushing the QUICK-CAL button. Lowering

the gain setting maybe help if the actuator is

unstable during the calibration. Gain settings

can be physically adjusted on the device. A lower

letter represents lower gain.

N/A

Calibration >

Stroke

RGGR

Jog

Calibration

State

Indicates that during a job

calibration, the unit is wait-

ing for the user to manually

adjust the valve position

to the desired 100% open

position.

Use the buttons on the positioner to adjust the

valve to the desired fully open position. See the

explanation of Jog Calibrate in the QUICK-CAL

section of main document for operation.

N/A

YGYR