6.4 Faults, Minor Faults, Alarms, and Error Codes Listed by Decimal Value for Use with BACnet/Modbus
466 YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference
6.4 Faults, Minor Faults, Alarms, and Error Codes Listed by
Decimal Value for Use with BACnet/Modbus
Table 6.3 shows the list of faults by decimal number.
Table 6.4 shows the list of minor faults and alarms by decimal number. Minor fault and alarm decimal numbers are
read in Modbus register 007F.
The display codes are in decimal order. Search the tables for the decimal code, and identify its causes and possible
solutions.
Drive Faults thrown by the HV600 drive will stop the bypass from running the drive but will not stop it from running
in Bypass Mode.
System Faults will stop the drive and also stop it from running in Bypass Mode.
Note:
The number in parentheses adjacent to the code in the table identifies the fault code or minor fault code (hex. number) that was read during
MEMOBUS/Modbus communications.
Example: AFBL (00A2)
Table 6.3 List of Faults by Decimal
Decimal Value Display (Hex.) Name ALM LED Type Ref.
2 Uv1 (0002) DC Bus Undervoltage Illuminated Drive Fault 494
3 Uv2 (0003) Control Power Undervoltage Illuminated Drive Fault 494
4 Uv3 (0004) Soft Charge Answerback Fault Illuminated Drive Fault 495
5 SC (0005) Short Circuit/IGBT Failure Illuminated Drive Fault 493
6 GF (0006) Ground Fault Illuminated Drive Fault 482
7 oC (0007) Overcurrent Illuminated Drive Fault 484
8 ov (0008) Overvoltage Illuminated Drive Fault 492
9 oH (0009) Heatsink Overheat Illuminated Drive Fault 488
10 oH1 (000A) Heatsink Overheat Illuminated Drive Fault 489
11 oL1 (000B) Motor Overload Illuminated Drive Fault 489
12 oL2 (000C) Drive Overload Illuminated Drive Fault 490
13 oL3 (000D) Overtorque Detection 1 Illuminated Drive Fault 491
14 oL4 (000E) Overtorque Detection 2 Illuminated Drive Fault 491
17 EF3 (0011) External Fault (Terminal S3) Illuminated Drive Fault 478
18 EF4 (0012) External Fault (Terminal S4) Illuminated Drive Fault 479
19 EF5 (0013) External Fault (Terminal S5) Illuminated Drive Fault 479
20 EF6 (0014) External Fault (Terminal S6) Illuminated Drive Fault 479
21 EF7 (0015) External Fault (Terminal S7) Illuminated Drive Fault 479
25 dEv (0019) Speed Deviation Illuminated Drive Fault 477
27 PF (001B) Input Phase Loss Illuminated Drive Fault 492
28 LF (001C) Output Phase Loss Illuminated Drive Fault 483
29 oH3 (001D) Motor Overheat (PTC Input) Illuminated Drive Fault 489
30 oPr (001E) Keypad Connection Fault Illuminated Drive Fault 491
31 Err (001F) EEPROM Write Error Illuminated Drive Fault 479
32 oH4 (0020) Motor Overheat Fault (PTC Input) Illuminated Drive Fault 489
33 CE (0021) Modbus Communication Error Illuminated Drive Fault 472
34 bUS (0022) Option Communication Error Illuminated Drive Fault 472
39 EF0 (0027) Option Card External Fault Illuminated Drive Fault 478
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