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Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table B.6 Alarm Register 007FH Contents
Fault 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)
0009H
External Fault 3, input terminal S3 (EF3)
000AH
External Fault 4, input terminal S4 (EF4)
000BH
External Fault 5, input terminal S5 (EF5)
000CH
External Fault 6, input terminal S6 (EF6)
000DH
External Fault 7, input terminal S7 (EF7)
000EH
External Fault 8, input terminal S8 (EF8)
000FH
Cooling Fan Error (FAN)
0010H
Overspeed (oS)
0011H
Excessive Speed Deviation (dEv)
0012H
PG Disconnected (PGo)
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)
001BH
Motor Switch command input during run (rUn)
001DH
Serial Communication Transmission Error (CALL)
001EH
Undertorque Detection 1 (UL3)
001FH
Undertorque Detection 2 (UL4)
0020H
MEMOBUS/Modbus Test Mode Fault (SE)
Fault Code
Fault Name
0022H
Motor Overheat (oH3)
0027H
PID Feedback Loss (FbL)
0028H
PID Feedback Loss (FbH)
002AH
Drive Disabled (dnE)
002BH
PG Disconnected (PGo)
0031H
SI-T3 Watchdog Error (E5)
0032H
SI-T3 Station Address Setting Error (AEr)
0033H
SI-T3 Comm. Cycle Setting Error (CyC)
0034H
High Current Alarm (HCA)
0035H
Cooling Fan Maintenance Time (LT-1)
0036H
Capacitor Maintenance Time (LT-2)
0038H
SI-S EEPROM Error (EEP)
0039H
External Fault (input terminal S1) (EF1)
003AH
External Fault (input terminal S2) (EF2)
003BH
003CH
Safe Disable Input (Hbb)
003DH
Mechanical Weakening Detection 1 (oL5)
003EH
Mechanical Weakening Detection 2 (UL5)
003FH
PLC Alarm (PA1)
0040H
PLC Alarm (PA2)
0041H
Output Voltage Detection Fault (voF)
0042H
IGBT Maintenance Time (90%) (TrPC)
0043H
Soft Charge Bypass Relay Maintenance Time (LT-3)
0044H
IGBT Maintenance Time (50%) (LT-4)
0048H
Motor Overheat (NTC Input) (oH5)
0049H
DriveWorksEZ Alarm (dWAL)
004DH
Thermistor Disconnect (THo)
3, IEC/EN61508 SIL2, Insulation coordination: class 1.
B.9 MEMOBUS/Modbus Data Table
YASKAWA ELECTRIC SIEP YEAHHP 01B YASKAWA AC Drive – A1000 HHP Programming Manual
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B
MEMOBUS/Modbus Communications
Summary of Contents for A1000 HHP
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