Logix
®
Digital Positioners FCD LGENIM0110-0 05/16
flowserve.com
49
RGYG
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SETTLE TIME OUT
Description: During calibration, the position feedback
sensor showed movement, but did not settle.
Possible Solutions: Check for loose linkages or a loose
positioner sensor. This error may appear on some very
small actuators during the initial calibration. Recalibrating
may clear the problem, or this error may be cleared by
briefly pushing the QUICK-CAL/ACCEPT button.
RGYY
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NO MOTION TIME OUT
Description: During a stroke calibration, there was no valve
motion detected. Because some valves are quite large,
this indicator can take up to 9 minutes to detect an error.
Possible Solutions: 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 larger actuator by doubling the time allowed for
movement. This error may be cleared by briefly pushing the
QUICK-CAL/ACCEPT.
RGYR
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ANALOG OUTPUT RANGE TOO SMALL
Description: During an Analog Output Calibration the
difference between the milliamp signal at 0% and the
milliamp signal at 100% was too small.
Possible Solutions: Recalibrate making sure to use a larger
difference between signal limits. This notification can be
cleared by briefly pressing the QUICK-CAL/ACCEPT
button.
RGRG
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STROKE CALIBRATION REQUIRED
Description: A factory reset was performed and the
positioner has not yet been calibrated. The unit will not
respond to commands and will remain in the failsafe
position until a calibration is successfully completed.
Possible Solutions: Perform a Stroke Calibration (QUICK-
CAL) by holding the QUICK-CAL/ACCEPT button down for
3 seconds, or perform a Pressure or Friction calibration if
desired. See the Calibration section of the IOM for
warnings.
RGRY
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STROKE SHIFT
Description: The 0% and 100% valve positions have both
shifted in the same direction since the last stroke
calibration. This may be related to a bent or adjusted
feedback linkage, loose positioner mounting, or an over
rotated feedback potentiometer.
STROKE SPAN DECREASE
Description: The 0% and 100% valve positions are closer
together compared to the last stroke calibration. This could
indicate debris or build up at valve seat.
STROKE SPAN INCREASE
Description: The 0% and 100% valve positions are farther
apart compared to the last stroke calibration. This could
indicate seat wear.
Possible Solutions: Ensure the feedback linkage is not bent
and the positioner is mounted securely. If the feedback
potentiometer is over-rotated, repeat the stroke calibration
until the Stroke Shift error is no longer present. Inspect
valve or schedule valve for inspection. This notification can
be cleared by briefly pressing the QUICK-CAL/ACCEPT
button.
RGRR
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FACTORY RESET STATE
Description: The positioner is in factory reset state.
Calibration is required to enable control.
Possible Solutions: Perform a Stroke Calibration (QUICK-
CAL).
RYGG
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VALVE CAN'T OPEN ALARM
VALVE CAN'T SHUT ALARM
Description: Pressure has been applied (or removed) to
open or shut the valve, but the valve is not moving. This
may be caused by excessive friction.
Possible Solutions: Verify adequate supply pressure is
applied. Verify the feedback linkage is connected. View
the friction trends if available. Consider the following: Clear
any external or internal mechanical obstruction, loosen the
packing, clean the stem, repair or replace the actuator,
repair the valve if galling is suspected.
RYGY
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COMMAND AMPLITUDE ALARM
COMMAND FREQUENCY ALARM
Description: The amplitude or frequency of the command
signal is above the alarm limit. This could mean the control
loop has larger or faster swings than desirable.
Possible Solutions: Verify the limits are set at an
appropriate level. Review the control loop parameters and
equipment. Adjust as necessary.
