Troubleshooting
5
5.4 Faults, Minor Faults, Alarms, and Error Codes Listed by Decimal Value for Use with BACnet/Modbus
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup 103
Decimal Value Display (Hex.) Name ALM LED Type Ref.
1061 LFB (0425) Low Feedback Sensed Illuminated Drive Fault 117
1062 LOAUX (0426) Low PI Aux Feedback Level Illuminated Drive Fault 118
1063 LOP (0427) Loss of Prime Illuminated Drive Fault 118
1065 NMS (0429) Setpoint Not Met Illuminated Drive Fault 118
1066 OD (042A) Output Disconnect Illuminated Drive Fault 119
1067 VLTS (042B) Thermostat Fault Illuminated Drive Fault 129
1082 FB02 (043A) Wait For Interlock Timeout Illuminated System Fault 114
1083 FB03 (043B) External Fault Bypass (EFB) Illuminated System Fault 114
1085 FB05 (043D) Motor Overload Illuminated System Fault 114
1086 FB06 (043E) External Overload 1 Illuminated System Fault 114
1087 FB07 (043F) External Overload 2 Illuminated System Fault 114
1088 FB08 (0440) Brownout Detected Illuminated System Fault 115
1089 FB09 (0441) Blackout Detected Illuminated System Fault 115
1090 FB10 (0442) Loss of Drive Communications Illuminated Drive Fault 115
1093 FB13 (0445) Loss of Load Illuminated System Fault 115
1095 FB15 (0447) Input Phase Loss Illuminated System Fault 115
1096 FB16 (0448) Input Phase Rotation Illuminated System Fault 115
1097 FB17 (0449) Loss of Load Detected Illuminated System Fault 115
1098 FB18 (044A) Welded Bypass Contactor Detected Illuminated System Fault 115
1106 FB26 (0452) Option on Drive Detected Illuminated Drive Fault 116
1107 FB27 (0453) Drive Hardware Fault (CPFx oFx) Illuminated Drive Fault 116
1108 FB28 (0454) Drive Faulted Illuminated System Fault 116
1110 FB30 (0456) Conflicting SW Check UB-99 Illuminated Drive Fault 116
Table 5.4 List of Minor Faults and Alarms by Decimal
Minor fault and alarm decimal numbers are read in Modbus register 007F.
Decimal Value Display (Hex.) Name ALM LED Type Ref.
1 Uv (0001) DC Bus Undervoltage Flashing Alarm 142
2 ov (0002) DC Bus Overvoltage Flashing Alarm 140
3 oH (0003) Heatsink Overheat Flashing Alarm 139
4 oH2 (0004) External Overheat (H1-XX=B) Flashing Alarm 139
5 oL3 (0005) Overtorque 1 Flashing Alarm 140
6 oL4 (0006) Overtorque 2 Flashing Alarm 140
7 EF (0007) FWD/REV Run Command Input Error Flashing Alarm 134
8 bb (0008) Baseblock Flashing Alarm 131
9 EF3 (0009) External Fault (Terminal S3) Flashing Alarm 134
10 EF4 (000A) External Fault (Terminal S4) Flashing Alarm 134
11 EF5 (000B) External Fault (Terminal S5) Flashing Alarm 134
12 EF6 (000C) External Fault (Terminal S6) Flashing Alarm 134
13 EF7 (000D) External Fault (Terminal S7) Flashing Alarm 135
17 dEv (0011) Speed Deviation Flashing Alarm 133
20 CE (0014) Modbus Communication Error Flashing Alarm 132
21 bUS (0015) Option Communication Error Flashing Alarm 131
26 EF0 (001A) Option Card External Fault Flashing Alarm 134
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