Edge counter 2

What does A889 mean?

Warning generated by edge counter 2, indicating that a specific number of events (edges) has been detected or a threshold has been crossed. This is typically used for monitoring operations, component life, or sequence integrity. Ignoring this could lead to unexpected behavior or component failure if a limit is exceeded.

• Edge counter 2 (Parameter P4-06) has reached its configured limit (P4-06.01 Edge Count 2 Limit), indicating a predefined number of events has occurred.
• The input signal responsible for incrementing the counter (e.g., a digital input detecting an actuator position) is correctly providing pulses.
• The programmed threshold for Edge Counter 2 (P4-06.01) is no longer appropriate for the current operational cycle or component monitoring requirements.
• The counter was not manually reset after reaching its limit in a previous cycle.

Click steps to track your progress.

1. 1

   Identify the specific process or component whose events are being tracked by Edge Counter 2 by reviewing parameter descriptions and system programming.

2. 2

   Note the current accumulated count from parameter P4-06.00 (Current Edge Count 2).

3. 3

   Perform any preventative maintenance or operational review triggered by the attainment of this event count.

4. 4

   Reset Edge Counter 2 to zero by setting parameter P4-06.02 (Reset Counter 2) to '1' (Execute) once the necessary actions are complete.

5. 5

   Modify the limit value in parameter P4-06.01 (Edge Count 2 Limit) if the event threshold requires adjustment.