SIR I AM USING ASC880 .THE DRIVE GETS READY IN LOCAL CONTROL MODE WITH FREQUENCY CONTROL MODE. WHEN THE DRIVE IS STARTED THROUGH KEYPAD WITH 0.0 RPM REFERENCE THE DRIVE STARTS BUT WHEN THE REFERENCE IS INCREASED TO EVEN 0.1RPM THE DRIVE TRIPS IN FAULT 5696(PU STATE FEEDBACK). THERE IS NO ENCODER CONNECTED IT IS OPEN LOOP. WHAT IS THE POSSIBLE FAULT?
Hi, Most probably you have checked the firmware manual which says you have to contact your local ABB representative in that case.
As an advise, I could recommend the following test: - disconnect all the cables from the output of the drive - disconnect all the control cables - restore the drive's parameters to factory default (par. 96.06) - set the frequency control mode (99.04) and motor data (99.xx) - try to start the drive in local, from control panel