Table 7-6 Background Tests - Honeywell UDC3300 Product Manual

7.5 Background Tests,
Background tests,
continued
Table 7-6 Background Tests, Continued
Lower
Display
INP1 RNG Input 1 out of range. The process input is
outside the range limits.
If you have a linear input and the range
goes outside the range limits, the
controller will switch to Limit mode.
PV LIMIT PV out of range.
PV = INP1 + INP1 BIAS
1/01
Continued
Reason for Failure
UDC3300 Limit Controller Product Manual
How to Correct the Problem
1. Make sure the range and actuation are configured
properly.
2. Check the input source.
3. Restore the factory calibration:
a. Disconnect the wiring from and place a jumper
across terminals 26 and 27. The controller
should read room temperature if it is configured
for a thermocouple input.
b. If it does not read room temperature, see
Section 3 – Configuration and change the
IN1TYP prompt in the INPUT 1 group to
another type of thermocouple.
c. After the change, press [FUNCTION] key, then
the [LOWER DISPLAY] key. The limit controller
should read the correct room temperature. If it
does not, the unit has an input failure.
d. Repeat step b. This time switch the IN1TYP
back to the originally selected thermocouple.
e. Repeat step c. The controller is restored with
factory calibration.
f. Remove the jumper and reconnect the
thermocouple.
4. Field calibrate. See Section 6 — Input Calibration.
1. Make sure the input signal is correct.
2. Make sure the Bias setting is correct
3. Recheck the calibration. Use Bias of 0.0.
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