Flowserve Logix MD+ ValveSight User Manual

Page 81

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ValveSight™ Diagnostics DTM Manual for Logix MD+ Positioner with HART®

FCD-

LGENSF0014-00

© Flowserve Corporation

81


Aux. Card 1 No Loop Power

Definition: Auxiliary Card 1 has no loop current.

Possible Solutions: Check auxiliary card connection to loop current. If

the problem persists, replace the card.

Aux. Card 1 Error

Definition: Auxiliary Card 1 has an electrical problem.

Possible Solutions: MFC: Check auxiliary loop wiring and ensure

adequate compliance voltage. Replace card if condition persists

Aux. Card 2 Fail

Definition: Auxiliary Card 1 is not communicating.

Possible Solutions: Check auxiliary card connection to the main

board. If the problem persists, replace the card.

Aux. Card 2 No Loop Power - Auxiliary Card 2 has no loop current

Definition: Auxiliary Card 2 has no loop current.

Possible Solutions: Check auxiliary card connection to loop current. If

the problem persists, replace the card.

Aux. Card 2 Error

Definition: Auxiliary Card 2 has an electrical problem.

Possible Solutions: MFC: Check auxiliary loop wiring and ensure

adequate compliance voltage. Replace card if condition persists

Pressure Board Fail Warning

Definition: One or more pressure sensors may have failed.

Possible Solutions: Check the supply pressure to ensure it is between

1.3 and 10.3 bar (19 and 150 PSI). Check the pressure sensor board
connections. Recalibrate the pressure sensors. If the problem persists,
replace the pressure sensor board.

Low Battery Warning

Definition: The battery for the real time clock is low.

Implications: The battery is designed for a 15+ year life with the

positioner unpowered. The battery is not required for the positioner to
control properly, but is used only to maintain the time and date upon
loss of power. The time and date affect the time stamps of alarms,
warnings and other events. This warning could be caused by rapidly
power cycling the positioner.

Possible Solutions: The battery is not replaceable. Verify or reset the

time and date. Replace the main board if the problem persists for
several days.

Main Board Fail

Definition: There has been an oscillator fault, position sensor ADC

failure, supply voltage error, reference voltage error, shunt voltage error,
or piezo voltage error.

Possible Solutions: This may be caused by transient conditions. If the

error persists, replace the main board.

Software Error

Definition: There has been a watch dog time out, stack overflow

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