OC6
I²xt overload
Lenze · SM29_05 Service Bulletin
What does OC6 mean?
This fault signifies a cumulative thermal overload condition based on the square of current and time, resulting from frequent and prolonged acceleration processes with motor overcurrent or permanent motor overload with Imotor > Irmotor. This can severely stress the motor and drive components.
Source: Lenze SM29_05 Service Bulletin
Open Manual (Page 326)