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Fault Code
Fault Name
0303H
Option Not Properly Connected (oFC01)
0304H
Same Type of Option Card Already Connected
(oFC02)
0306H
A/D Conversion Error (oFC05)
0307H
Option Response Error (oFC06)
0311H
Option RAM Fault (oFC10)
0312H
Option Operation Mode Fault (SLMOD) (oFC11)
0313H
Unit Receive CRC Error (oFC12)
0314H
Unit Receive Frame Error (oFC13)
0315H
Unit Receive Abort Error (oFC14)
0316H
Option Receive CRC Error (oFC15)
0317H
Option Receive Frame Error (oFC16)
Fault Code
Fault Name
0318H
Option Receive Abort Error (oFC17)
0351H
Encoder Option AD Conversion Error (oFC50)
0352H
Encoder Option Analog Circuit Error (oFC51)
0353H
Encoder Communication Timeout (oFC52)
0354H
Encoder Communication Data Error (oFC53)
0355H
Encoder Error (oFC54)
0356H
Resolver Error (oFC55)
0408H
Damping Resistor Overheat (doH)
0409H
Snubber Discharge Resistor Overheat (SoH)
040AH
Internal Resistance Fault (Srr)
u
Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table B.4 Alarm Register 007FH Contents
Fault Code
Fault Name
0001H
Control Circuit Undervoltage (Uv)
0002H
Control Circuit Overvoltage (ov)
0003H
Heatsink Overheat (oH)
0004H
Heatsink Overheat Warning (oH2)
0005H
Overtorque 1 (oL3)
0006H
Overtorque 2 (oL4)
0007H
Forward/Reverse Run commands input error (EF)
0008H
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
Fan Fault (FAn)
0010H
Overspeed (oS)
0012H
PG Disconnect (PGo)
0014H
MEMOBUS/Modbus Communication Error (CE)
0015H
Option Communication Error (bUS)
0016H
Serial Communication Transmission Error (CALL)
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)
Fault Code
Fault Name
0020H
MEMOBUS/Modbus Communication Test Mode
Error (SE)
0022H
Motor Overheat (oH3)
0027H
PID Feedback Loss (FbL)
0028H
Excessive PID Feedback (FbH)
002AH
Drive Disabled (dnE)
002BH
PG Disconnect (PGo)
0031H
MECHATROLINK Watchdog Timer Error (E5)
0032H
Station Address Setting Error (AEr)
0033H
MECHATROLINK Comm. Cycle Setting Error
(CyC)
0034H
Current Alarm (HCA)
0035H
Cooling Fan Maintenance Time (LT-1)
0036H
Capacitor Maintenance Time (LT-2)
0037H
Damping Resistor Overheat (doH)
0038H
SI-S EEPROM Error (EEP)
0039H
External Fault (input terminal S1) (EF1)
003AH
External Fault (input terminal S2) (EF2)
003BH
Safe Disable Signal Input (HbbF)
003CH
Safe Disable Signal Input (Hbb)
003DH
Mechanical Weakening Detection 1 (oL5)
003EH
Mechanical Weakening Detection 2 (UL5)
0043H
Soft Charge Bypass Relay Maintenance Time (LT-3)
0049H
DriveWorksEZ Fault (dWAL)
0050H
Power Supply Undervoltage (AUv)
B.9 MEMOBUS/Modbus Data Table
310
YASKAWA ELECTRIC SIEP C710636 10C Z1000U HVAC MATRIX Drive Programming Manual