TROUBLESHOOTING
-71-
The majority of problems can be traced to improper connections or incorrect set-up parameters. Be sure all
connections are clean and tight, that the correct output board is fitted, and that the set-up parameters are correct. For
further technical assistance, contact technical support at the appropriate company numbers listed.
PROBLEMS
POSSIBLE CAUSE
REMEDIES
NO DISPLAY
1. Power off
2. Brown out condition.
3. Loose connection or improperly wired.
4. Bezel assembly not fully seated into rear of unit.
1. Check power.
2. Verify power reading.
3. Check connections.
4. Check installation.
CONTROLLER
NOT WORKING
1. Incorrect parameter set-up.
1. Check set-up parameters.
“E-FP” IN DISPLAY
1. Defective front panel button.
1. Press D to escape, then check all buttons for proper operation.
2. Replace unit.
“E-UP” IN DISPLAY
1. Internal problem with controller.
1. Replace unit.
“E-E2” IN DISPLAY
1. Loss of set-up parameters due to noise spike.
1. Press D to clear, then check all set-up parameters.
a. Check sensor input and AC line for excessive noise.
b. If fault persists, replace unit.
“E-CL” IN DISPLAY
1. Loss of calibration parameters due to noise spike.
1. Press D to clear, then check accuracy of controller.
a. Recalibrate controller.
b. Reset calibration parameters to nominal values
(See Factory Service Operations Module).
“...” OR “-..” IN DISPLAY
1. Display value exceeds display range.
2. Defective or mis-calibrated cold junction circuit.
3. Loss of set-up parameters.
4. Internal malfunction.
1. Change resolution to display whole number.
a. Verify reading.
2. Check cold junction calibration.
3. Check set-up parameters.
4. Check calibration.
“OPEN” IN DISPLAY
(CN63100)
1. Probe disconnected.
2. Broken or burned out probe.
3. Corroded or broken terminations.
4. Excessive process temperature.
1. Connect probe. (Connection must remain intact for 3 sec.
to clear “OPEN” condition.)
2. Replace probe.
3. Check connections.
4. Check process parameters.
Summary of Contents for CN63100 Series
Page 23: ...FRONT PANEL PROGRAMMING CHART FOR CN63100 CN63300 CONTROLLERS 15 ...
Page 48: ... 40 ...
Page 62: ...PID Adjustments Cont d 54 Figure 33 Process Response Extremes ...
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