Flowserve 3400IQ Digital Positioner User Manual

Page 29

Logix 3400IQ Digital Positioner FCD LGENIM3401-00 – 06/06

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Table VII: Status and Conditions (continued)

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Indication and Resolution

YGRR

Local jog control mode The unit has been placed in a local override mode where the valve

can only be stroked using the two local jog buttons. It may be cancelled by briefly pushing the

RE-CAL button.

YYGR

Pressure calibration in progress Calibration sequence controlled by a handheld or Host

software that can only be cancelled by that software.

YYYY

Local user interface disabled Host software has been used to disable the local interface. If

local control is desired then the local interface must be re-enabled from the remote software.

This code is only present for a short time when the RE-CAL button is pressed.

YRRG

Waiting Adjust to full open position setting from User—only used during Jog calibration

see explanation in Section 7.5, “RE-CAL,” for operation.

YRYG

Setting IL offset while calibrating An automatic step in the calibration process that is done

with the valve at 50% position. This must be completed for proper calibration.

YRYY

No feedback motion while calibrating Indicates that 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 RE-CAL and the positioner will automatically adjust for a larger actuator

by doubling the time allowed for movement. This error may be cleared by briefly pushing

the RE-CAL button, which will force the positioner to use the parameters from the last good

calibration.

YRYR

Feedback 0% out of range Calibration error indicating that the position sensor was out

of range during the calibration of the closed position. To correct the condition, adjust the

positioner mounting, linkage or feedback potentiometer to move the position sensor back into

range then restart the calibration. This error may be cleared by briefly pushing the RE-CAL

button, which will force the positioner to use the parameters from the last good calibration.

YRRY

Feedback 100% out of range Calibration error indicating that the position sensor was

out of range during the calibration of the open position. To correct the condition, adjust the

positioner mounting, linkage or feedback potentiometer to move the position sensor back into

range then restart the calibration. This error may be cleared by briefly pushing the RE-CAL

button, which will force the positioner to use the parameters from the last good calibration.

YRRR

Feedback span too small 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 posi-

tion closer to the follower arm pivot to create a larger angle of rotation and recalibrate. Briefly

pushing the RE-CAL button acknowledges this condition and the positioner will operate using

the current short stroke calibration if otherwise a good calibration.

YRGR

Feedback unstable while calibrating Check for loose linkages or loose positioner sensor.

This error may be cleared by briefly pushing the RE-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. Redoing the calibration may clear the

problem.

R - - -

Any sequence starting with a red light indicates that there is an operational problem with

the unit.

RGRR

Position deviation (user-set) The position has exceeded user-defined error band between

command and position.

RGYY

Pressure reading out of range The internal pressure sensors are either saturated with a

pressure over 150 psi or the sensor has failed. Check supply pressure and if OK check the

pressure sensor board connections and replace pressure sensor board if necessary.

Continued on page 30