Alarm Register Contents - YASKAWA L1000A Technical Manual

Fault Code
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)
0096H Hardware fault at communication start up (CPF21)
0097H A/D Conversion Fault (CPF22)
0098H PWM Feedback Fault (CPF23)
0099H Drive Unit Signal Fault (CPF24)
009AH Terminal board is not properly connected. (CPF25)

◆ 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)
0005H Overtorque 1 (oL3)
0006H Overtorque 2 (oL4)
0007H Up/Down commands input error (EF)
0008H Drive Baseblock (bb)
0009H External Fault at input terminal S3 (EF3)
000AH External Fault at input terminal S4 (EF4)
000BH External Fault at input terminal S5 (EF5)
000CH External Fault at input terminal S6 (EF6)
000DH External Fault at input terminal S7 (EF7)
000EH External Fault at input terminal S8 (EF8)
0010H Overspeed (oS)
0011H Excessive Speed Deviation (dEv)
0012H Encoder Disconnected (PGo)
0014H MEMOBUS/Modbus Communication Error (CE)
0015H Option Communication Error (bUS)
0016H Serial Communication Transmission Error (CALL)
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
Fault Name
Table C.5 Alarm Register 007FH Contents
Fault Name
C.9 MEMOBUS/Modbus Data Table
Fault Code
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)
0351H Encoder Option A/D Conversion Error (OFC50)
0352H Encoder Option Analog Circuit Error (OFC51)
0353H Encoder Communications Timeout (OFC52)
0354H Encoder Communications Data Error (OFC53)
0355H Encoder Error (OFC54)
040FH Safety Circuit Fault (SCF)
Alarm Code
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)
001FH Undertorque Detection 2 (UL4)
0020H MEMOBUS/Modbus Test Mode Fault (SE)
0022H Motor Overheat Alarm (PTC thermistor input) (oH3)
002BH Encoder Disconnected (PGo)
0034H High Current Alarm (HCA)
0035H Cooling Fan Maintenance Time (LT-1)
0036H Capacitor Maintenance Time (LT-2)
0038H SI-S EEPROM Error (EEP)
003BH Safe Disable Input (HbbF)
003CH Safe Disable Input (Hbb)
0041H Output Voltage Detection Fault (voF)
0043H Soft Charge Bypass Relay Maintenance Time (LT-3)
0044H IGBT Maintenance Time (50%) (LT-4)
0045H Braking Transistor Overload (boL)
Fault Name
Fault Name
467
C