Okuma Alarm P-0861 – MCS Inverter Capacity Differs From Spec

Okuma Alarm P-0861 (MCS Inverter Capacity Differs From Spec) occurs when the inverter unit’s allowable current is lower than the current limit specified in the servo data file. This alarm is typically caused by an incorrect inverter/drive model configuration, wrong servo parameter data, mismatched hardware, or a setup error after drive replacement or system modification.