ABB TB82PH Betriebsanleitung PDF herunterladen (Seite 42)

I-E67-TB82FF-2A February 13, 2002

DIAGNOSTIC INFORMATION

The TB82EC FF transmitter performs a number of diagnostic checks on hardware, software, and sensor functions. If

a nonconforming condition is detected, the user is alerted to faults locally by a flashing FAULT indicating icon and

remotely by a configuration and/or system/host tool.

When using the local HMI, diagnostic faults are interrogated using the FAULT Info key in the Measure Mode. A short

text string and fault code is alternately shown in the secondary display region. If multiple faults exist, the FAULT Info

key moves the user to the next fault. Once all faults have been interrogated, the transmitter returns to the Measure

Mode. A flashing FAULT icon indicates a new fault condition that has not been interrogated. Conversely, a non-

flashing FAULT icon indicates all fault conditions have been interrogated but not resolved. When all fault conditions

are resolved, the FAULT icon and FAULT Info key are de-energized.

Fault conditions are grouped into two categories based on severity. Conditions that result in degradation of

transmitter performance are reported as Problem Codes (PC), while conditions that render the transmitter inoperable

are reported as Error Codes (EC). Fault codes are reported in the secondary display region in a first in, first out order

(i.e., the first detected fault condition is the first condition that is displayed upon interrogation). The table below lists

all applicable Error and Problem codes and the suggested Corrective Actions. See Text Prompt Definitions for fault

code description.

Fault Code Fault Text

String

Corrective Action

EC1 PV.AD Contact Factory.

EC3 PH.PCB Incorrect Input PCB assembly has been detected. pH/ORP/pION Input PCB Assembly

is being used with TB82EC product firmware.

EC4 TC.PCB Incorrect Input PCB assembly has been detected. Toroidal Conductivity Input PCB

Assembly is being used with TB82EC product firmware.

EC5 DO.PCB Incorrect Input PCB assembly has been detected. Dissolved Oxygen Input PCB

Assembly is being used with TB82EC product firmware.

EC6 TE.PCB Incorrect Input PCB assembly has been detected. Two-Electrode Conductivity Input

PCB Assembly is being used with TB82EC product firmware.

PC3 DRTY.SN 1) Verify sensor wiring is properly connected.

2) Verify sensor wiring is free of nicks, cuts, breaks and/or open connections.

3) Verify sensor wiring is not shorted to other wiring or metal surfaces.

4) Verify terminal blocks and other connections are free of any liquids, oils, scale or

corrosion.

5) If a sensor extension is being used, verify ABB approved cabling is used and the

connections are dry and free of corrosion.

6) Verify sensor tip is clean. Remove any foreign material. Clean sensor. Verify

sensor responds to conductivity standard solutions. If sensor does not respond,

electronically test sensor as described Sensor Electronic Test section.

7) Verify configuration settings are correct..

PC4 GND LP 1) Verify sensor wiring is properly connected.

2) Verify sensor wiring is not shorted to other wiring or metal surfaces.

3) Verify terminal blocks and other connections are free of any liquids, oils, scale or

corrosion.

4) If a sensor extension is being used, verify ABB approved cabling is used and the

connections are dry and free of corrosion.

5) Verify configuration settings are correct.

6) Verify internal sensor connections are free of any liquids, oils, scale or corrosion.

PC8 HI.PV 1) Verify process conditions are within transmitter range values.

2) Verify sensor wiring is properly connected.

3) Verify sensor wiring is free of nicks, cuts, breaks and/or open connections.

4) Verify configuration settings are correct.

5) Verify manual or measured temperature value is correct. If a temperature sensor is

not being used, verify that TMP.SNS is set to none in the transmitter configuration.

PC9 LO.PV See PC8 corrective actions.

PC10 HI.TEMP See PC8 corrective actions.

PC11 LO.TEMP See PC8 corrective actions.

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