u Fault Reset MethodsWhen a fault occurs, the cause of the fault must be removed and the drive must be restarted. The table below lists the differentways to restart the drive.After the Fault Occurs ProcedureFix the cause of the fault, restart the drive, andreset the fault. Press on the HOA keypad when the error codeis displayed. F2F1ESCM MAUTO OFFENTERRESET-DRIVE-U1- 01=60.00Hz----------------U1- 02=60.00HzJOG FWD FWD/REV-Rdy-ALMDIGITAL OPERATOR JVOP-183HANDFreq Ref (OPR)Resetting via Fault Reset Digital Input S4 Close then open the fault signal digital input viaterminal S4. S4 is set for “Fault Reset” as default(H1-04 = 14).Fault Reset SwitchDriveS4 Fault Reset Digital InputSC Digital Input CommonTurn off the main power supply if the above methods do not reset the fault. Reapply power after theHOA keypad display has turned off.When an “SC” error occurs, contact Yaskawa or a Yaskawa agent before cycling the power to the drive.ONOFF21Note: If the Run command is present, the drive will disregard any attempts to reset the fault. Remove the Run command before attempting to cleara fault situation.5.9 Diagnosing and Resetting Faults234 YASKAWA TOEP YAIZ1U 03B YASKAWA AC Drive – Z1000 User Manual