PXU20030 Datasheet, PDF (21/32 Pages) Red Lion Controls. Inc – MODEL PXU - TEMPERATURE/PROCESS CONTROLLERS

7.5 MODULE 9 Factory Service Operations (9-FS)
9-FS CNFP
P
PARAMETER MENU
CodE
FACTORY
SERVICE CODE

RESTORE FACTORY SETTINGS

Press and hold B to display  . Press :. The controller will display
 and then return to . Press = to return to the Display Loop. This will
overwrite all user settings with Factory Settings.
Troubleshooting
For further technical assistance, contact technical support.
PROBLEM
NO DISPLAY
CAUSE
1. Power off.
2. Brown-out condition.
3. Loose connection or improperly wired.
4. Controller not fully seated into case.
CONTROLLER NOT
WORKING
. . . or . . . IN DISPLAY
1. Incorrect setup parameters.
2. Stop Mode.
1. Display value exceeds 4 digit display range.
2. Defective or miscalibrated cold junction circuit.
3. Loss of setup parameters.
4. Internal malfunction.
 IN DISPLAY
1. Probe disconnected.
2. Broken or burned-out probe.
3. Corroded or broken terminations.
4. Excessive process temperature.
 IN TOP DISPLAY
1. Input exceeds range of controller.
2. Temperature exceeds range of input probe.
3. Defective or incorrect transmitter or probe.
4. Excessive high temperature for probe.
5. Loss of setup parameters.
 IN TOP DISPLAY
1. Input is below range of controller.
2. Temperature below range of input probe.
3. Defective or incorrect transmitter or probe.
4. Excessive low temperature for probe.
5. Loss of setup parameters.
 IN DISPLAY
1. RTD probe shorted.
CONTROLLER SLUGGISH OR ^{1. Incorrect PID values.}
NOT STABLE
2. Incorrect probe location.
CANNOT ACCESS
PROGRAMMING
1. Active User Input, programmed for PLOC.
2. Incorrect access code entered.
REMEDIES
1. Check power.
2. Verify power reading.
3. Check connections.
4. Check installation.
1. Check setup parameters.
2. Change to Run mode.
1. Check input parameters (Input Type).
2. Change display resolution/scaling.
3. Recalibrate controller. (Consult Factory)
4. Consult Factory
1. Check probe wire/change probe.
2. Check sensor input type selection.
3. Perform cold junction calibration. (Consult Factory)
4. Perform Input calibration. (Consult Factory)
1. Check input parameters.
2. Change to input sensor with a higher temperature range.
3. Replace transmitter or probe.
4. Reduce temperature.
5. Perform input calibration. (Consult Factory)
1. Check input parameters.
2. Change to input sensor with a lower temperature range.
3. Replace transmitter or probe.
4. Raise temperature.
5. Perform input calibration. (Consult Factory)
1. Check wiring and/or replace RTD probe.
1. See PID control.
2. Evaluate probe location.
1. Deactivate User Input.
2. Enter proper access code at CodE 0 prompt. (111 or -111 =
universal access code)
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