Drive Overload

What does OL1 mean?

This fault indicates that the Altivar 212 drive is overloaded, often due to excessively short acceleration times, high DC injection current, incorrect motor control settings, or a rotating load.

• Acceleration time is too short (ACC or F500).
• DC injection current level (F251) is too high.
• Incorrect setting of [Mot cont. mode sel.] (Pt).
• Drive is starting into a rotating load.
• Excessive mechanical load is applied to the motor.

Click steps to track your progress.

1. 1

   Increase the acceleration time parameters (ACC or F500).

2. 2

   Reduce the setting of parameters F251 ([DC braking current]) and/or F252 ([DC braking time]).

3. 3

   Select the correct setting for parameter [Mot cont. mode sel.] (Pt).

4. 4

   Enable catch on the fly function (F301).

5. 5

   Set parameter F302 ([Supply loss behav.]) to 2 (Freewheel).