On-time 1
ABB · ACS880
What does A886 mean?
Warning generated by on-time timer 1, 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.
Common Causes
- On-time timer 1 (Parameter P4-03) has accumulated time beyond its configured threshold (P4-03.01 On-time 1 Limit), indicating a scheduled maintenance alert.
- The maintenance task associated with this timer (e.g., filter replacement, bearing lubrication) has not been performed or recorded.
- The on-time limit (P4-03.01) was set incorrectly or too short for the component's expected lifespan or maintenance schedule.
- Timer was not reset after the previous maintenance interval, causing a premature warning.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Consult the machine's maintenance documentation or system integrator to determine the specific component or process monitored by On-time Timer 1.
- 2
Record the current accumulated time from parameter P4-03.00 (Current On-time 1) for maintenance logging.
- 3
Perform the necessary preventative maintenance task (e.g., inspect pump seals, replace air filter) associated with this timer's function.
- 4
Reset On-time Timer 1 to zero by setting parameter P4-03.02 (Reset Timer 1) to '1' (Execute) after completing the required maintenance.
- 5
Adjust the threshold value in parameter P4-03.01 (On-time 1 Limit) if the maintenance interval needs to be revised based on operational conditions or component lifespan.