u Bypass Fault CodesTable D.4 shows the bypass fault codes that can be read out by MEMOBUS/Modbus commands from the UB-oo monitorparameters.Table D.4 Bypass fault CodesFault Code Fault Name0001H Safety Open0002H BAS InterLock Open0003H External Fault (EFB)0004H NA0005H Motor Overload0006H Ext Motor1 Overload0007H Ext Motor2 OverloadFault Code Fault Name0008H PL Brownout0009H PL Blackout000AH No Bypass to Drive Communications000BH Bypass Board Hardware Error000CH Option Board Communication Fault000DH Loss of Load000EH Serial Communications Timeoutu Alarm Register ContentsThe table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.Table D.5 Alarm Register 007FH ContentsFault Code Fault Name0001H Undervoltage (Uv)0002H Overvoltage (ov)0003H Heatsink Overheat (oH)0004H Overheat Signal from MFDI (oH2)0005H Overtorque 1 (oL3)0007H Run commands input error (EF)0008H Drive Baseblock (bb)0009H External Fault 3, input terminal S3 (EF3)000AH External Fault 4, input terminal S4 (EF4)000BH External Fault 5, input terminal S5 (EF5)000CH External Fault 6, input terminal S6 (EF6)000DH External Fault 7, input terminal S7 (EF7)000FH Internal Fan Fault (FAn)0014H MEMOBUS/Modbus Communication Error (CE)0015H Option Communication Error (bUS)0017H Motor Overload (oL1)0018H Drive Overload (oL2)001AH Option Card External Fault (EF0)001DH Serial Communication Transmission Error (CALL)001EH Undertorque Detection 1 (UL3)0020H MEMOBUS/Modbus Test Mode Fault (SE)0022H Motor Overheat (oH3)0027H PI Feedback Loss (FbL)Fault Code Fault Name0028H PI Feedback Loss (FbH)002AH Drive Disabled (dnE)0031H, 0033H Reserved0034H High Current Alarm (HCA)0035H Cooling Fan Maintenance Time (LT-1)0036H Capacitor Maintenance Time (LT-2)0038H Reserved0039H External Fault (input terminal S1) (EF1)003AH External Fault (input terminal S2) (EF2)003FH PLC Alarm (PA1)0040H PLC Alarm (PA2)0041H Output Voltage Detection Fault (voF)004EH Motor Underload Protection (UL6)004FH Waiting for Run (WrUn)0063H Time Not Set (TIM)0064H Operator Battery Low (bAT)0065H Time Data Error (TdE)0066H External Fan Fault (Fn1)0067H Emergency Override Forward Run (EoF)0068H Emergency Override Reverse Run (Eor)006AH Customer Safety (SAFE)006BH Interlock Open (inTLK)D.9 MEMOBUS/Modbus Data Table404 YASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual
