On-time 2

What does A887 mean?

Warning generated by on-time timer 2, indicating that a predefined operational time limit has been reached or exceeded. This often serves as a maintenance reminder or an alert for extended operation. Failure to address could lead to component wear or overdue service.

• On-time timer 2 (Parameter P4-04) has exceeded its programmed limit (P4-04.01 On-time 2 Limit), signaling a second independent maintenance or operational threshold.
• The component or process linked to this timer has reached its defined operational period without scheduled service.
• The threshold for On-time Timer 2 (P4-04.01) was misconfigured or is no longer appropriate for current operating conditions.
• Previous maintenance related to On-time Timer 2 was performed, but the timer was not correctly reset.

Click steps to track your progress.

1. 1

   Identify the specific equipment or process that On-time Timer 2 is configured to monitor by reviewing system documentation.

2. 2

   Note the current accumulated time value displayed in parameter P4-04.00 (Current On-time 2).

3. 3

   Perform the required preventative maintenance (e.g., gearbox oil change, motor fan inspection) corresponding to the timer's purpose.

4. 4

   Reset On-time Timer 2 to zero by setting parameter P4-04.02 (Reset Timer 2) to '1' (Execute) after the maintenance is completed.

5. 5

   Update the limit in parameter P4-04.01 (On-time 2 Limit) if the operational interval needs to be extended or reduced.