Diagnostic Messages; Table 4-4 Diagnostic Messages - Honeywell UDC3200 Product Manual

Monitoring and Operating the Controller

4.5.3 Diagnostic Messages

The UDC3200 performs background tests to verify data and memory integrity. If there is
a malfunction, a diagnostic message will be shown on the lower display. In the case of
more than one simultaneous malfunction, only the highest priority diagnostic message
will be displayed. Table 4-4 shows the error messages in order by priority. If any of these
diagnostic messages appear on the lower display, refer to Section 7 - Troubleshooting for
information on how to correct the problem.
Prompt
EE FAIL
FAILSAFE
INP1FAIL
INP2FAIL
SW FAIL
CONF ERR
SOOTING
IN1 RNG
IN2 RNG
PV LIMIT
FAILSAFE
RV LIMIT
SEG ERR
CAL MTR
SW FAIL
TC1 WARN
TC2 WARN
TC1 FAIL
102

Table 4-4 Diagnostic Messages

Unable to write to nonvolatile memory. A subsequent successful write to
nonvolatile memory removes this message.
This error message appears whenever the controller goes into a failsafe
mode of operation. Failsafe operation occurs when an analog input fails or
when configuration is corrupted.
Two consecutive failures of input 1 integration or input value is outside of
Out-of-Range limits.
Two consecutive failures of input 2 integration or input value is outside of
Out-of-Range limits.
Slidewire input failure. Position Proportional Control automatically switched
to Three Position Step Control.
Configuration Errors—Low limit greater than high limit for PV, SP, Reset, or
Output.
Carbon Potential Problem—Percent Carbon outside of "sooting boundary."
Input 1 Out-of-Range—Input is outside of the High or Low Limits.
Out-of-range criteria:
Linear range: ± 10 %
Characterized range: ± 1 %
Input 2 Out-of-Range—Same criteria as Input 1.
PV beyond limits—PV outside of PV Hi/Low Limits.
PV = (PV source x PV source ratio) + PV source bias
Failsafe—Check inputs or configuration.
Remote Variable beyond limits—RSP outside of SP Hi/Low Limits.
RV = (RV source x RV source ratio) + RV source bias
Segment Error—SP Program starting segment number is less than ending
segment number.
Slidewire not calibrated. Perform Slidewire calibration.
Position Proportional slidewire input failure.
The Thermocouple on Input 1 is starting to burnout.
The Thermocouple on Input 2 is starting to burnout.
Thermocouple on Input 1 is in imminent danger of burning out.
UDC3200 Universal Digital Controller Product Manual
Description
12/04