Background Tests; Table 7-3 Background Tests - Honeywell UDC2300 Product Manual

Troubleshooting/Service
7.5

Background Tests

Introduction
The UDC2300 performs ongoing background tests to verify data and memory integrity.
If there is a malfunction, an error message will be displayed (blinking) in the lower
display.
In the case of simultaneously malfunctions, the messages will appear in sequence in the
lower display. Table 7-3 lists these background tests, the reason for their failure, and how
to correct the problem.
Lower
Display
EE FAIL Unable to write to non-volatile
memory. Anytime you change a
parameter and it is not accepted, you
will see EE FAIL.
This error message shows whenever
FAILSF
the indicator goes into a failsafe mode
of operation. This will happen if:
Two consecutive failures of input 1
IN1FL
integration; i.e., cannot make analog to
digital conversion. This will happen if:
IN1RNG Input 1 out of range. The process input
is outside the range limits.
PV LIM PV out of range.
PV = INP1 x RATIO1+ INP1 BIAS
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Table 7-3 Background Tests

Reason for Failure
• RAM test failed
• Configuration test failed
• Calibration test failed
• Burnout configured for none
and the input failed.
• Upscale or Downscale burnout
is selected
• Input not configured correctly
UDC2300 Indicator Product Manual
How to Correct the Problem
1. Check the accuracy of the parameter and re-
enter.
2. Try to change something in configuration.
3. Run through STATUS tests to re-write to
EEPROM.
1. Run through STATUS check to determine the
reason for the failure.
2. Press the [SET UP] key until STATUS
appears in the lower display.
3. Press the [FUNCTION] key to see whether
the tests pass or fail, then run through the
STATUS codes a second time to see if the
error cleared.
1. Make sure the actuation is configured
correctly. See Section 4 - Configuration.
2. Make sure the input is correct.
3. Check for gross over-ranging. Check S101
jumper position (Figure 2-2).
4. Restore factory calibration. See Section 6.6
1. Make sure the range and actuation are
configured properly.
2. Check the input source.
3. Restore the factory calibration.
(See Section 6.6.)
4. Field calibrate.
See Section 6 - Input Calibration.
1. Make sure the input signal is correct.
2. Make sure the Ratio and Bias settings are
correct.
3. Recheck the calibration. Use Bias of 0.0
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