Alarm Register Contents - YASKAWA A1000 Series Technical Manual

Fault Code
002BH High Slip Braking Overload (oL7)
0030H Hardware Fault (including oFx)
0032H Z Pulse Fall Detection (dv1)
0033H Z Pulse Noise Fault Detection (dv2)
0034H Inversion Detection (dv3)
0035H Inversion Prevention Detection (dv4)
0036H Output Current Imbalance (LF2)
0037H Pullout Detection (Sto)
0038H PG Hardware Fault (PGoH)
003BH Too many speed search restarts (SEr)
0041H PID Feedback Loss (FbH)
0042H External Fault 1, input terminal S1 (EF1)
0043H External Fault 2, input terminal S2 (EF2)
0044H Mechanical Weakening Detection 1 (oL5)
0045H Mechanical Weakening Detection 2 (UL5)
0046H Current Offset Fault (CoF)
0047H PLC Detection Error 1 (PE1)
0048H PLC Detection Error 2 (PE2)
0049H DriveWorksEZ Fault (dWFL)
004DH Output Voltage Detection Fault (voF)
004EH Braking Resistor Transistor Fault (rF)
004FH Braking Transistor Overload Fault (boL)
0052H Node Setup Fault (nSE)
0083H A/D Conversion Error (CPF02)
0084H PWM Data Fault (CPF03)
0087H EEPROM Memory Data Error (CPF06)
0088H Terminal Board Connection Error (CPF07)
0089H EEPROM Serial Communication Fault (CPF08)
008CH RAM Fault (CPF11)
008DH Flash Memory Circuit Exception (CPF12)
008EH Watchdog Circuit Exception (CPF13)
008FH Control Circuit Fault (CPF14)
0091H Clock Fault (CPF16)
0092H Timing Fault (CPF17)
0093H Control Circuit Fault (CPF18)
0094H Control Circuit Fault (CPF19)
0095H Hardware fault at power up (CPF20)

◆ Alarm Register Contents

The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Alarm Code
0001H Undervoltage (Uv)
0002H Overvoltage (ov)
0003H Heatsink Overheat (oH)
0004H Drive Overheat (oH2)
0005H Overtorque 1 (oL3)
0006H Overtorque 2 (oL4)
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)
000EH External Fault 8, input terminal S8 (EF8)
000FH Cooling Fan Error (FAN)
0010H Overspeed (oS)
0011H Excessive Speed Deviation (dEv)
0012H PG Disconnected (PGo)
0014H MEMOBUS/Modbus Communication Error (CE)
0015H Option Communication Error (bUS)
0016H Serial Communication Transmission Error (CALL)
YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual
Fault Name
Table C.5 Alarm Register 007FH Contents
Fault Name
C.9 MEMOBUS/Modbus Data Table
Fault Code
013AH Drive timeout waiting for response (oFA39)
013BH Control Response Selection 1 Error (oFA40)
013CH Drive timeout waiting for response (oFA41)
013DH Control Response Selection 2 Error (oFA42)
013EH Control Response Selection Error (oFA43)
0201H Option Connection Error (oFb01)
0202H Same type of option card already connected (oFb02)
0205H A/D Conversion Error (oFb05)
0206H Option Response Error (oFb06)
0210H Option RAM Fault (oFb10)
0211H Option Operation Mode Fault (SLMOD) (oFb11)
0212H Drive Receive CRC Error (oFb12)
0213H Drive Receive Frame Error (oFb13)
0214H Drive Receive Abort Error (oFb14)
0215H Option Receive CRC Error (oFb15)
0216H Option Receive Frame Error (oFb16)
0217H Option Receive Abort Error (oFb17)
0231H Comm. ID Error (oFb30)
0232H Model Code Error (oFb31)
0233H Sumcheck Error (oFb32)
0234H Comm. option timeout waiting for response (oFb33)
0235H MEMOBUS Timeout (oFb34)
0236H Drive timeout waiting for response (oFb35)
0237H CI Check Error (oFb36)
0238H Drive timeout waiting for response (oFb37)
0239H Control Command Selection Error (oFb38)
023AH Drive timeout waiting for response (oFb39)
023BH Control Response Selection 1 Error (oFb40)
023CH Drive timeout waiting for response (oFb41)
023DH Control Response Selection 2 Error (oFb42)
023EH Control Response Selection Error (oFb43)
0300H Option Compatibility Error (oFC00)
0301H Option not properly connected (oFC01)
0302H Same type of option card already connected (oFC02)
0305H A/D Conversion Error (oFC05)
0306H Option Response Error (oFC06)
Alarm Code
0020H MEMOBUS/Modbus Test Mode Fault (SE)
0022H Motor Overheat (oH3)
0027H PID Feedback Loss (FbL)
0028H PID Feedback Loss (FbH)
002AH Drive Disabled (dnE)
002BH PG Disconnected (PGo)
0031H SI-T3 Watchdog Error (E5)
0032H SI-T3 Station Address Setting Error (AEr)
0033H SI-T3 Comm. Cycle Setting Error (CyC)
0034H High Current Alarm (HCA)
0035H Cooling Fan Maintenance Time (LT-1)
0036H Capacitor Maintenance Time (LT-2)
0038H SI-S EEPROM Error (EEP)
0039H External Fault (input terminal S1) (EF1)
003AH External Fault (input terminal S2) (EF2)
003BH Safe Disable Input (HbbF)
003CH Safe Disable Input (Hbb)
003DH Mechanical Weakening Detection 1 (oL5)
003EH Mechanical Weakening Detection 2 (UL5)
003FH PLC Alarm (PA1)
0040H PLC Alarm (PA2)
Fault Name
Fault Name
501
C