Troubleshooting
6
6.4 Faults, Minor Faults, Alarms, and Error Codes Listed by Decimal Value for Use with BACnet/Modbus
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference 469
Decimal Value Display (Hex.) Name ALM LED Type Ref.
1061 LFB (0425) Low Feedback Sensed Illuminated Drive Fault 483
1062 LOAUX (0426) Low PI Aux Feedback Level Illuminated Drive Fault 484
1063 LOP (0427) Loss of Prime Illuminated Drive Fault 484
1065 NMS (0429) Setpoint Not Met Illuminated Drive Fault 484
1066 OD (042A) Output Disconnect Illuminated Drive Fault 485
1067 VLTS (042B) Thermostat Fault Illuminated Drive Fault 495
1082 FB02 (043A) Wait For Interlock Timeout Illuminated System Fault 480
1083 FB03 (043B) External Fault Bypass (EFB) Illuminated System Fault 480
1085 FB05 (043D) Motor Overload Illuminated System Fault 480
1086 FB06 (043E) External Overload 1 Illuminated System Fault 480
1087 FB07 (043F) External Overload 2 Illuminated System Fault 480
1088 FB08 (0440) Brownout Detected Illuminated System Fault 481
1089 FB09 (0441) Blackout Detected Illuminated System Fault 481
1090 FB10 (0442) Loss of Drive Communications Illuminated Drive Fault 481
1093 FB13 (0445) Loss of Load Illuminated System Fault 481
1095 FB15 (0447) Input Phase Loss Illuminated System Fault 481
1096 FB16 (0448) Input Phase Rotation Illuminated System Fault 481
1097 FB17 (0449) Loss of Load Detected Illuminated System Fault 481
1098 FB18 (044A) Welded Bypass Contactor Detected Illuminated System Fault 481
1106 FB26 (0452) Option on Drive Detected Illuminated Drive Fault 482
1107 FB27 (0453) Drive Hardware Fault (CPFx oFx) Illuminated Drive Fault 482
1108 FB28 (0454) Drive Faulted Illuminated System Fault 482
1110 FB30 (0456) Conflicting SW Check UB-99 Illuminated Drive Fault 482
Table 6.4 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 508
2 ov (0002) DC Bus Overvoltage Flashing Alarm 506
3 oH (0003) Heatsink Overheat Flashing Alarm 505
4 oH2 (0004) External Overheat (H1-XX=B) Flashing Alarm 505
5 oL3 (0005) Overtorque 1 Flashing Alarm 506
6 oL4 (0006) Overtorque 2 Flashing Alarm 506
7 EF (0007) FWD/REV Run Command Input Error Flashing Alarm 500
8 bb (0008) Baseblock Flashing Alarm 497
9 EF3 (0009) External Fault (Terminal S3) Flashing Alarm 500
10 EF4 (000A) External Fault (Terminal S4) Flashing Alarm 500
11 EF5 (000B) External Fault (Terminal S5) Flashing Alarm 500
12 EF6 (000C) External Fault (Terminal S6) Flashing Alarm 500
13 EF7 (000D) External Fault (Terminal S7) Flashing Alarm 501
17 dEv (0011) Speed Deviation Flashing Alarm 499
20 CE (0014) Modbus Communication Error Flashing Alarm 498
21 bUS (0015) Option Communication Error Flashing Alarm 497
26 EF0 (001A) Option Card External Fault Flashing Alarm 500
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