text: <s>[INST] powerflex 700 Summary: overcurrent error When I try to start the drive the following message appear ot the HIM Hardware overcurrent error - F12. Before that I replaced the IGBT Module and ungrade the firmware with the latest revision. What is your advice in this case ? Ivan Koychev [/INST] Ivan, here below some notes taken from an old post about 700H drive and F12: A F12 fault indicates an instantaneous spike in application current in excess of 250% of drive rated current. Similar to a short on the output. F12's can be caused by several events all being current related.Typically this can be corrected with proper drive tuning if in Sensorless Vector mode or you can also try Custom V/hz mode if tuning and accel time increase dont work. The Motor control selection settings (P53) can also be set to option 2 for Custom V/HZ and P69 and 70 are used to re-establish your V/Hz curve. These are just common recommendations. To be more helpful I would need more info such as application, cabling type and distance, parameter settings , Motor data, when event occurs during process etc. For now I would try to lengthen the Accel time first if not successful then switch motor control mode to option 2 and adjust P69 in increments of .5 until issue is resolved. Also make sure you re verify the motor Data P40-49 Also, take a look to Aid 38940 - Fault F12 - Instantaneous Output Overcurrent - fuzzy logic Please remember to Rate the Comments( ) to enhance the reputation of the User who provided help,or close your Topic using the ( ) button over the answer that solved it. Thanks... \\n </s>