Fault Trace Contents - YASKAWA T1000V Technical Manual

C.10 MEMOBUS/Modbus Data Table

◆ Fault Trace Contents

The table below shows the fault codes that can be read out by MEMOBUS/Modbus commands from the U2-
monitor parameters.
Note: Uv1 and Uv2 faults are not saved to the fault history.
Fault Code
0002H Undervoltage (Uv1)
0003H Control Power Supply Undervoltage (Uv2)
0004H Soft Charge Circuit Fault (Uv3)
0006H Ground Fault (GF)
0007H Overcurrent (oC)
0008H Overvoltage (ov)
0009H Heatsink Overheat (oH)
000AH Heatsink Overheat (oH1)
000BH Motor Overload (oL1)
000CH Drive Overload (oL2)
000DH Overtorque Detection 1 (oL3)
000EH Overtorque Detection 2 (oL4)
000FH Dynamic Braking Transistor (rr)
0010H Braking Resistor Overheat (rH)
0011H External Fault at input terminal S3 (EF3)
0012H External Fault at input terminal S4 (EF4)
0013H External Fault at input terminal S5 (EF5)
0014H External Fault at input terminal S6 (EF6)
0018H Overspeed (oS)
0019H Excessive Speed Deviation (dEv)
001AH PG Disconnect (PGo)
001BH Input Phase Loss (PF)
001CH Output Phase Loss (LF)
001DH Motor Overheat (PTC input) (oH3)
001EH Digital Operator Connection (oPr)
001FH EEPROM Write Error (Err)
0020H Motor Overheat (PTC input) (oH4)
0021H MEMOBUS/Modbus Communication Error (CE)
0022H Option Communication Error (bUS)
0025H Control fault (CF)
0027H Option Card External Fault (EF0)
0028H PID Feedback Loss (FbL)
0029H Undertorque Detection 1 (UL3)
402
Table C.4 Fault Trace/History Register Contents
Fault Name
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
Fault Code
002AH Undertorque Detection 2 (UL4)
0030H Hardware Fault (including oFx)
0036H Output Current Imbalance (LF2)
0037H Pullout Detection (Sto)
0038H PG Disconnected (PGo)
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)
0046H Current Offset Fault (CoF)
0083H A/D Conversion Error (CPF02)
0084H PWM Data Fault (CPF03)
Drive specification mismatch during Terminal Board
0087H
or Control Board replacement (CPF06)
0088H Terminal Board Communication Fault (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 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)
Fault Name