Honeywell UDC 2300 User Manual

Operation
4/00 UDC2300 Universal Digital Controller User Manual 55
4.16 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 simultaneous malfunctions, the messages will appear in sequence
in the lower display. Table 4-14 lists these background tests, the reason for their
failure, and how to correct the problem.
Table 4-14 Background Tests
Lower
Display
Reason for Failure How to Correct the Problem
E FAIL
Unable to write to non-volatile
memory. Anytime you change a
parameter and it is not accepted, you
will see E FAIL.
1. Check the accuracy of the parameter and re-
enter.
2. Try to change something in configuration.
3. Run through Read STATUS tests to re-write
to EEPROM.
FAILSF
This error message shows whenever
the controller goes into a failsafe mode
of operation. This will happen if:
• RAM test failed
• Configuration test failed
• Calibration test failed
• Burnout configured for none
and the input failed.
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.
IN1RNG
Input 1 out of range. The process input
is outside the range limits.
1. Make sure the range and actuation are
configured properly.
2. Check the input source.
3. Restore the factory calibration. (See Section
4.17.)
4. Field calibrate.
IN1_FL
Two consecutive failures of input 1
integration. i.e., cannot make analog to
digital conversion. This will happen if:
• Upscale or Downscale burnout
is selected
• Input not configured correctly
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. See Figure 2-1 Jumper
Placements
4. Restore factory calibration. See Section 4.17
IN2RNG
Input 2 out of range. The remote input
is outside the range limits.
Same as IN1RNG above.
IN2_FL
Two consecutive failures of input 2
integration. i.e., cannot make analog to
digital conversion.
Same as IN1FL above.

Honeywell UDC 2300 Specifications

General

Brand	Honeywell
Model	UDC 2300
Category	Remote Control
Language	English