Fault Code Fault Name
0064H Low Feedback (LFB)
0065H High Feedback (HFB)
0066H Setpoint Not Met (NMS)
0067H Pump Over Cycle (POC)
0069H Net Master Lost (MSL)
006BH Anti-Jam Fault (AJF)
006DH Wire Break (FDBKL)
0070H Low Water Level (LWL)
0071H High Water Level (HWL)
0075H Volute-Thermostat Fault (VLTS)
0083H A/D Conversion Error (CPF02)
0084H PWM Data Fault (CPF03)
0087H
Drive specification mismatch during Terminal Board or
Control Board replacement (CPF06)
0088H Terminal Board Communication Fault (CPF07)
0089H EEPROM Serial Communication Fault (CPF08)
008CH RAM fault (CPF11)
Fault Code Fault Name
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 capacity signal fault (CPF24)
0101H Option compatibility error (oFA00)
0102H Option not properly connected (oFA01)
0104H Option Self-diagnostics Error (oFA03)
0105H Option Flash Write Mode Error (oFA04)
<1> Available in drive software versions PRG: 1020 and later.
u
Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table C.5 Alarm Register 007FH Contents
Alarm Code Fault Name
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)
0009HP Pump Fault 3, input terminal S3 (EF3)
000AH Pump Fault 4, input terminal S4 (EF4)
000BH Pump Fault 5, input terminal S5 (EF5)
000CH Pump Fault 6, input terminal S6 (EF6)
000DH Pump Fault 7, input terminal S7 (EF7)
000FH Reserved
0010H Overspeed (oS)
0013H Digital operator connection fault (oPr)
0014H MEMOBUS/Modbus Communication Error (CE)
0015H Option Communication Error (bUS)
0016H Serial Communication Transmission Error (CALL)
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)
Alarm Code Fault Name
0022H Motor Overheat (oH3)
002AH Drive Disabled (dnE)
0031H MECHATROLINK Watchdog Timer Error (E5)
0032H Station Address Setting Error (AEr)
0033H MECHATROLINK Comm. Cycle Setting Error (CyC)
0034H High Current Alarm (HCA)
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)
004CH Loss of Prime (LOP)
004EH Underload Detection 6 (UL6)
0050H AnalogFB Lost Switched to Net
0051H Waiting for Master (NETSCAN)
0052H Pump Cycling Pump Over Cycle (PoC)
0053H Low Feedback Low FB Sensed
0054H High Feedback High FB Sensed
0056H Freq. Ref Pump Min (P1-06)
0057H Freq. Ref Thrust (P4-12)
0058H Low City Pressure
005CH Feedback Loss Wire Break
005EH R-DNE-Sx Remote Drv Dis
005FH Low Suction Pressure
0059H Anti Jam Active
C.10 MEMOBUS/Modbus Data Table
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual
413
C
MEMOBUS/Modbus
Communications
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