Emerson 5081-T instruction manual Fault Conditions, Disabling Faults, NON- Disabling Warnings

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MODEL 5081-T

10.2 FAULT CONDITIONS

Three classes of error conditions/problems are detected and differentiated between by the diagnostic program. System disabling problems are faults caused by failures in the loop or significant variations in the process. System non-disabling problems are warnings and deal with input or A to D conversion settings. The third class of detected problems are error messages and occur when the calibration limits are exceeded.

10.2.1 DISABLING FAULTS

1.Both FAULT and HOLD annunciation fields will become active (see Figure 10-3).

2.The process variable will flash at the rate of 1 sec- ond ON and 1 second OFF.

3.The appropriate fault message alternates with the normal Temperature/Current output display (see Figure 10-2).

A

 

F

 

 

U

'"""

µS/cm

T

L

 

 

H

 

 

O

 

 

L

 

 

D

 

 

CALIBRATE PROGRAM DIAGNOSE

[ 5 P 1 ! 2 - 5 [ ￿ ! ! !

E X I T N E X T E N T E R

FIGURE 10-2. Disabling Fault Annunciation

SECTION 10.0

DIAGNOSIS AND TROUBLESHOOTING

4.The output current loop will be forced to the non-zero fault value entered in Step 3 of Section 7.2 or held at last value if fault value=0, if the transmitter is not in the TEST, HOLD, or Multidrop operational modes.

5.A 0-1 mA output signal is available for external use when system disability conditions are active. These conditions drive this output to 1 mA. Please contact factory for specific application information.

10.2.2NON- DISABLING WARNINGS

When a non-system-disablingcondition occurs, a warn- ing message is displayed. The process variable does not flash. The appropriate message alternates with the Temperature/Current output display (see Figure 10-3).

If more than one fault exists, the display will sequence through each diagnostic message. This will continue until the cause of the fault has been corrected.

'""" µS/cm

CALIBRATE PROGRAM DIAGNOSE

5 P : V U ! @ M - S P ￿ !

E X I T N E X T E N T E R

FIGURE 10-3. Warning Annunciation

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Contents Model 5081-T Rev. Level Date Essential InstructionsModel 5081-T Table of Contents CONT’D Iii List of FiguresNumber Title List of Tables List of Figures CONT’DSimple Menu Structure Section Description and SpecificationsHart Recommended Ranges for Toroidal Sensors Recommended SensorsAtex Transmitter Display During Calibration and Programming I T N E X THart Interface Devices Overview of Hart CommunicationFoundation Fieldbus AMS Main Menu Tools Orienting the Display Board Section InstallationMechanical Installation Unpacking and InspectionMounting on a Flat Surface Pipe Mounting 40308103Recommended Sensors Inductive LoopsSensor Selection Model 5081-T Sensor SelectionModel 5081-T-HT Power SUPPLY/CURRENT LoopPower Supply and Load Requirements. Refer to Figure Power Supply-Current Loop WiringTypical Fieldbus Network Electrical Wiring Configuration Power Supply Wiring for Model 5081-T-FF/FIWiring Through a Junction BOX Section WiringSensor Wiring Electrical Installation Sensor WiringPower Wiring Model 5081-T-FF Power Wiring Model 5081-T-HTWiring Model 242 sensor to Model 5081-T transmitter Electrical InstallationSection Section Section Intrinsically Safe & Explosion Proof IRC Infrared Remote ControlFM Explosion-Proof Installation for Model 5081-T-HT FM Intrinsically Safe Installation for Model 5081-T-HT CSA Intrinsically Safe Installation for Model 5081-T-HT Atex Intrisically Safe Label for Model 5081-T-HT Atex Intrisically Safe Label for Model 5081-T-HT FM Explosion-Proof Installation for Model 5081-T-FF FM Intrinsically Safe Installation for Model 5081-T-FF 10. CSA Intrinsically Safe Installation for Model 5081-T-FF 11. Atex Intrisically Safe Label for Model 5081-T-FF 12. Atex Intrinsically Safe Installation for Model 5081-T-FF FI-T 9241515-01 15. FM Intrinsically Safe Installation for Model 5081-T-FI 9241516-01 17. CSA Intrinsically Safe Installation for Model 5081-T-FI 18. Atex Intrisically Safe Label for Model 5081-T-FI 19. Atex Intrinsically Safe Installation for Model 5081-T-FI I T N E X T Section Display and OperationDisplays S UInfrared Remote Controller Infrared Remote Controller IRC KEY FunctionsQuick Start for Model 5081-T-HT Hart To reset transmiter to factory default settingsQuick Start for Model 5081-T-FF/FI Foundation Fieldbus Calibration Program Menu Tree Conductivity25.0C 12.00mA Process DisplayProgram Menu Mnemonics Default Settings Diagnostic MessagesDefault Settings for Model 5081-T-HT Retrieving a Lost Security Code Using HoldSecurity Entering the Security CodeSection START-UP and Calibration Accessing the Calibrate MenuModel 5081-T-FF Calibrate MenuOutput Cal Procedure9URU Temp SlopeU91 5ES-U1U17!91 GM!91Model 5081-T-HT Model 5081-T-FF Section ProgramingGeneral Definitions Output 5081-HT onlyPurpose Uhtu Procedure9VUVU 4QGU7-P Process temperature is. Press Enter to saveTemp H2SO4L DisplayG5-A HCLGgshtt Hart8VO!UT Setup CustPVO!RUT!!% SHIG12-U DefaultSetting Measurement Range Over Range Warning Limit RangePID Section Foundation Fieldbus OperationSection Operation with Model Connecting the CommunicatorOff-line and On-line Operation Making Hart related settings from the keypadOperation C/T-HT HART/Model 375 Menu Tree 1 PV LRV PV URVC/T-HT HART/Model 375 Menu Tree 2 LSL USLAO1 LRV URVC/T-HT HART/Model 375 Menu Tree 4 PV AO PV LRV PV URVMaxnotify Resource FaultstateBlockerr Featuresel Rsstate Faultstate LimnotifyTagdesc AlarmhysStrev BlockerrStrev Statusopts Strategy Alertkey HihilimPvftime LowcutIoopts LolimLolopri LololimBkcalhys Ffgain ResetRate Reset Sphilim SplolimBypass BaltimeAlertkey Outhilim ControloptsSphilim Strev Rate TagdescDvlopri DvhipriC/T-FF/FI Model 375 Menu Tree 9 C/T-FF/FI Model 375 Menu Tree 10 Current Operating Menu Section Diagnosis and TroubleshootingOverview Idvnut DLSTqiu 4DSGNON- Disabling Warnings Fault ConditionsDisabling Faults 9IITHU!1SS 9WHS!S-PJ1Hssqs Field Troubleshooting Quick Troubleshooting GuideQuick Troubleshooting Guide Symptom ActionTroubleshooting Flow Chart Systematic TroubleshootingRTD Resistance Values RTD Resistance ValuesFormula ExampleWhen a Fault exists When a Warning condition existsCPU Fail Troubleshooting When a Fault or Warning Message is ShowingTemp HI Temp LORtd FAIL, Temp HI, and Temp LO CPU Fail and ROM Fail 0 C 2 1 0 % mA Section MaintenancePreventative Maintenance Transmitter MaintenanceExploded View of Model 5081-T Transmitter Replacement Parts for Model 5081-T TransmitterOutput Logic Section Theory of OperationConductivity Hart CommunicationGeneral Warranty RepairNON-WARRANTY Repair Section Return of MaterialThis page intentionally left blank Return of Material WarrantySpecifications subject to change without notice