ABB XSeries G4 6200 User Manual page 135

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If the A to D Converter readings are within range, AD is shaded.
5.2.3.1
1) Begin by collecting data from the unit.
2) View the Event log in PCCU32 for codes (see PCCU32 Help Files for more
3) If the event code is found, follow the guidelines for returning the transducer
4) In the PCCU32 Entry screen, monitor the readings by clicking on the I/O
5) Set the EXIMV back to Factory calibration. If this corrects the alarm,
6) Perform a Warm start on the unit. Verify that the unit is not displaying a LL
7) Perform the Save and Restore function. Follow the procedure in Chapter 4
8) Following the reset procedures covered in this chapter, perform a Cold start
9) Check the RTD wiring at the EXIMV.
10) Perform the following three procedures found next in this chapter.
11) Contact Totalflow to repair or replace the EXIMV.
2104349 rev. AD
A/D Converter is over or under range (DP, SP or Tf)
Loose wiring connections
Faulty RTD probe
Step-by-step instructions
information).
- 99 A/D converter could not be read.
- 100 A/D converter could be read again.
to Totalflow for repair or replacement. If the event code is not found,
continue to the next step.
Subsystem in the tree-view and selecting Onboard and Analog Inputs.
Check SP, DP and temperature to determine which measurement channel
is causing the alarm.
- If the alarm is caused by the SP or DP channel, equalize and vent the
manifold.
- If the alarm disappears: the SP or DP cell is not ranged properly, or
the manifold may have blockage.
- If the alarm is still present, replace the transducer.
- If the alarm is caused by the temperature channel, move to Step 9;
otherwise, move to the next step.
recalibrate the EXIMV to correct field calibration. If the alarm is not
corrected, continue to the next step.
(Low Lithium) alarm, and then remove power from the unit. Restore power
to the unit. If the A/D Failure alarm is not corrected, continue to the next
step.
for backing up configuration files. The user must ensure that they restore
these files to the tfCold drive.
on the unit. If the problem is not corrected, continue to the next step.
- RTD Continuity Test
- RTD Resistive Test
- RTD Impedance Test
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