red lion PXU11A20 User Manual

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Drawing No. LP0932 Released 2018-01-12
For further technical assistance, contact technical support.
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PROBLEM CAUSE REMEDIES
NO DISPLAY 1. Power off.
2. Brown-out condition.
3. Loose connection or improperly wired.
4. Controller not fully seated into case.
1. Check power.
2. Verify power reading.
3. Check connections.
4. Check installation.
CONTROLLER NOT
WORKING
1. Incorrect setup parameters.
2. Stop Mode.
1. Check setup parameters.
2. Change r- to Run mode.
. . . or -. . . IN DISPLAY
1. Display value exceeds 4 digit display range.
2. Defective or miscalibrated cold junction circuit.
3. Loss of setup parameters.
4. Internal malfunction.
1. Check input parameters (Input Type).
2. Change display resolution/scaling.
3. Consult Factory
OPN IN DISPLAY
1. Probe disconnected.
2. Broken or burned-out probe.
3. Corroded or broken terminations.
4. Excessive process temperature.
1. Check probe wire/change probe.
2. Check sensor input type selection.
3. Consult Factory
OLOL 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.
1. Check input parameters.
2. Change to input sensor with a higher temperature range.
3. Replace transmitter or probe.
4. Reduce temperature.
5. Consult Factory
LL 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.
1. Check input parameters.
2. Change to input sensor with a lower temperature range.
3. Replace transmitter or probe.
4. Raise temperature.
5. Consult Factory
r IN DISPLAY
1. RTD probe shorted. 1. Check wiring and/or replace RTD probe.
CONTROLLER SLUGGISH OR
NOT STABLE
1. Incorrect PID values.
2. Incorrect probe location.
1. See PID control.
2. Evaluate probe location.
CANNOT ACCESS
PROGRAMMING
1. Active User Input, programmed for PLOC.
2. Incorrect access code entered.
1. Deactivate User Input.
2. Enter proper access code at Cod 0 prompt. (111 or -111 =
universal access code)
Calibration for the application can be accomplished using the input offset capability. For unit calibration contact the factory.

red lion PXU11A20 Specifications

General

Model	PXU11A20
Category	Controller
Operating Temperature	0 to 50 °C
Certifications	CE, UL
Output 1	Digital
Output 2	Analog
Supply Voltage	24V DC
Display	LCD
Communication Protocol	Modbus
Power Consumption	5 W
Storage Temperature	-20 to 75 °C
Humidity	5% to 95% non-condensing
Enclosure Rating	IP20