Motor bearing

What does A880 mean?

This warning is generated by an on-time timer or a value counter, likely indicating a scheduled maintenance alert for the motor bearings. It signals that a predefined operating threshold has been met, suggesting a need for inspection or service. Ignoring this could lead to bearing failure and motor damage.

• The internal maintenance timer (e.g., Parameter P4-01 Motor Bearing Interval) for motor bearings has reached its predefined operational threshold.
• Motor has accumulated excessive operating hours beyond the manufacturer's recommended interval for bearing lubrication or replacement.
• Motor is operating in an environment with high contamination or extreme temperatures, accelerating bearing wear beyond normal predictions.
• The motor bearing maintenance interval (P4-01.01) was set too short for the actual operational conditions or motor type.
• The timer was not reset after previous bearing maintenance, leading to a premature warning.

Click steps to track your progress.

1. 1

   Record the current operating hours of the motor from parameter P4-00 (Total Operating Hours) for maintenance logging.

2. 2

   Perform a physical inspection of the motor bearings for audible noise (e.g., grinding, squealing) or excessive heat using an infrared thermometer.

3. 3

   Follow the motor manufacturer's recommended maintenance procedure for bearing lubrication, cleaning, or replacement.

4. 4

   Reset the motor bearing maintenance timer by setting parameter P4-01.02 (Reset Timer) to '1' (Execute) after completing the maintenance.

5. 5

   Adjust the maintenance interval in parameter P4-01.01 (Motor Bearing Interval) if operating conditions or motor type dictate a different schedule.