YASKAWA A1000

C.9 MEMOBUS/Modbus Data Table
570 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual
 Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table C.6 Alarm Register 007FH Contents
Alarm Code Fault Name Alarm Code Fault Name
0001H Undervoltage (Uv) 0022H Motor Overheat (oH3)
0002H Drive Overheat Warning (ov) 0027H PID Feedback Loss (FbL)
0003H Heatsink Overheat (oH) 0028H PID Feedback Loss (FbH)
0004H Drive Overheat Warning (oH2) 002AH Drive Disabled (dnE)
0005H Overtorque 1 (oL3) 002BH PG Disconnected (PGo)
0006H Overtorque 2 (oL4) 0031H MECHATROLINK Watchdog Timer Error (E5)
0007H Run commands input error (EF) 0032H Station Address Setting Error (AEr)
0008H Drive Baseblock (bb) 0033H MECHATROLINK Comm. Cycle Setting Error (CyC)
0009H External Fault 3, input terminal S3 (EF3) 0034H High Current Alarm (HCA)
000AH External Fault 4, input terminal S4 (EF4) 0035H Cooling Fan Maintenance Time (LT-1)
000BH External Fault 5, input terminal S5 (EF5) 0036H Capacitor Maintenance Time (LT-2)
000CH External Fault 6, input terminal S6 (EF6) 0038H SI-S EEPROM Error (EEP)
000DH External Fault 7, input terminal S7 (EF7) 0039H External Fault (input terminal S1) (EF1)
000EH External Fault 8, input terminal S8 (EF8) 003AH External Fault (input terminal S2) (EF2)
000FH Internal Fan Fault (FAn) 003BH Safe Disable Input (HbbF)
0010H Overspeed (oS) 003CH Safe Disable Input (Hbb)
0011H Speed Deviation (dEv) 003DH Mechanical Weakening Detection 1 (oL5)
0012H PG Disconnected (PGo) 003EH Mechanical Weakening Detection 2 (UL5)
0014H MEMOBUS/Modbus Communication Error (CE) 003FH PLC Alarm (PA1)
0015H Option Communication Error (bUS) 0040H PLC Alarm (PA2)
0016H Serial Communication Transmission Error (CALL) 0041H Output Voltage Detection Fault (voF)
0017H Motor Overload (oL1) 0042H IGBT Maintenance Time (90%) (TrPC)
0018H Drive Overload (oL2) 0043H Soft Charge Bypass Relay Maintenance Time (LT-3)
001AH Option Card External Fault (EF0) 0044H IGBT Maintenance Time (50%) (LT-4)
001BH Motor Switch command input during run (rUn) 0045H Braking Transistor Overload (boL)
001DH Serial Communication Transmission Error (CALL) 0048H Motor Overheat (NTC Input) (oH5)
001EH Undertorque Detection 1 (UL3) 0049H DriveWorksEZ Fault (dWAL)
001FH Undertorque Detection 2 (UL4) 004DH Thermistor Disconnect (THo)
0020H MEMOBUS/Modbus Communication Test Mode Error (SE) – –