u
Alarm Register Contents
The table below shows the alarm codes that can be read out from MEMOBUS/Modbus register 007FH.
Table E.4 Alarm Register 007FH Contents
Fault Code
Fault Name
0001H
Undervoltage (Uv)
0002H
Overvoltage (ov)
0003H
Heatsink Overheat (oH)
0004H
Overheat Signal from MFDI (oH2)
0005H
Overtorque 1 (oL3)
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)
000FH
Internal Fan Fault (FAn)
0014H
MEMOBUS/Modbus Communication Error (CE)
0015H
Option Communication Error (bUS)
0017H
Motor Overload (oL1)
0018H
Drive Overload (oL2)
001AH
Option Card External Fault (EF0)
001DH
Serial Communication Transmission Error (CALL)
001EH
Undertorque Detection 1 (UL3)
0020H
MEMOBUS/Modbus Test Mode Fault (SE)
0022H
Motor Overheat (oH3)
0027H
PI Feedback Loss (FbL)
Fault Code
Fault Name
0028H
PI Feedback Loss (FbH)
002AH
Drive Disabled (dnE)
0031H, 0033H
Reserved
0034H
High Current Alarm (HCA)
0035H
Cooling Fan Maintenance Time (LT-1)
0036H
Capacitor Maintenance Time (LT-2)
0038H
Reserved
0039H
External Fault (input terminal S1) (EF1)
003AH
External Fault (input terminal S2) (EF2)
003FH
PLC Alarm (PA1)
0040H
PLC Alarm (PA2)
0041H
Output Voltage Detection Fault (voF)
004EH
Motor Underload Protection (UL6)
004FH
Waiting for Run (WrUn)
0063H
Time Not Set (TIM)
0064H
Operator Battery Low (bAT)
0065H
Time Data Error (TdE)
0066H
External Fan Fault (Fn1)
0067H
Emergency Override Forward Run (EoF)
0068H
Emergency Override Reverse Run (Eor)
006AH
Customer Safety (SAFE)
006BH
Interlock Open (inTLK)
E.9 MEMOBUS/Modbus Data Table
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
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E
MEMOBUS/Modbus Communications