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154 UDC 3300 Controller Product Manual 4/00
Diagnostic error
messages
The UDC 3300 performs background tests to verify data and memory
integrity. If there is a malfunction, an error message will be displayed. In
the case of more than one simultaneous malfunction, only the one with the
highest priority will appear on the lower display.
A list of error messages is contained in Table 5-5. If any of these error
messages occur, refer to Section 9 - Troubleshooting for information to
correct the failure.
Table 5-5 Error Messages
Prompt Description
EE FAIL
Unable to write to nonvolatile memory.
INP1FAIL
Two consecutive failures of input 1 integration.
INP2FAIL
Two consecutive failures of input 2 integration.
INP3FAIL
Two consecutive failures of input 3 integration.
SW FAIL
Slidewire input failure. Position Proportional Control
automatically switched to Three Position Step Control.
CONF ERR
Configuration Errors for Loop 1—Low limit greater than high
limit for PV, SP, Reset, or Output.
CONF ER2
Configuration Errors for Loop 2—Low limit greater than high
limit for PV, SP, Reset, or Output, or Loop 2 output has not
been selected.
SOOTING
Input Combination Errors—Percent Carbon falls outside of
“sooting boundary.”
IN1 RNG
Input 1 Out-of-Range
Out-of-range criteria:
Linear range: ± 10 % out-of-range
Characterized range: ± 1 % out-of-range
IN2 RNG
Input 2 Out-of-Range—Same as Input 1.
IN3 RNG
Input 3 Out-of-Range—Same as Input 1.
PV RNG
PV Out-of-Range
PV = (PV source x PV source ratio) + PV source bias
FAILSAFE
Failsafe Loop 1—Check inputs or configuration.
FAILSF2
Failsafe Loop 2—Check inputs or configuration.
RV LIMIT
Remote Variable Out-of-Range
RV = (RV source x RV source ratio) + RV source bias
RH LO
RH Excessive Temperature Depression—Calculated % RH is
less than 0 %.
SEG ERR
Segment Error—SP Program starting segment number is less
than ending segment number.
CAL MTR
Not calibrated. Perform Position Proportional calibration.