Comparator 2 Limit Error

What does CP2 mean?

This fault triggers when the monitored value, chosen via H2-26 [Comparator 2 Monitor Selection], is found to be outside the acceptable operating range defined by H2-27 [Comparator 2 Lower Limit] and H2-28 [Comparator 2 Upper Limit]. This indicates a critical process parameter has deviated beyond its safe boundaries, suggesting a potential malfunction or abnormal system state that could lead to operational instability if not corrected.

• The process variable monitored by H2-26 (Comparator 2 Monitor Selection) has fallen outside its safe operating limits.
• Incorrect H2-27 (Comparator 2 Lower Limit) or H2-28 (Comparator 2 Upper Limit) settings are defined.
• The sensor providing the input for the monitored parameter is malfunctioning or out of calibration.
• Sudden, significant load changes or process disturbances pushing the variable beyond its allowed range.
• Software bug or incorrect scaling configuration in the drive's parameter mapping for the monitored value.

Click steps to track your progress.

1. 1

   Identify the parameter selected by H2-26 (e.g., U1-01, U1-03) and monitor its current value.

2. 2

   Verify H2-27 (Comparator 2 Lower Limit) and H2-28 (Comparator 2 Upper Limit) are correctly set for the application.

3. 3

   Check the calibration and accuracy of the external sensor providing the input to the monitored parameter.

4. 4

   Observe the actual process variable for stability and ensure it stays within expected bounds during operation.

5. 5

   Adjust H2-27 and H2-28 to encompass the true acceptable operating range for the monitored process variable.